WO2018034160A1 - 可染性ポリオレフィン繊維からなる仮撚加工糸 - Google Patents
可染性ポリオレフィン繊維からなる仮撚加工糸 Download PDFInfo
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- WO2018034160A1 WO2018034160A1 PCT/JP2017/028184 JP2017028184W WO2018034160A1 WO 2018034160 A1 WO2018034160 A1 WO 2018034160A1 JP 2017028184 W JP2017028184 W JP 2017028184W WO 2018034160 A1 WO2018034160 A1 WO 2018034160A1
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- Prior art keywords
- fiber
- false twisted
- twisted yarn
- polyolefin
- polyester
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- CGRTZESQZZGAAU-UHFFFAOYSA-N [2-[3-[1-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]-2-methylpropan-2-yl]-2,4,8,10-tetraoxaspiro[5.5]undecan-9-yl]-2-methylpropyl] 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCC(C)(C)C2OCC3(CO2)COC(OC3)C(C)(C)COC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 CGRTZESQZZGAAU-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- FNGGVJIEWDRLFV-UHFFFAOYSA-N anthracene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=CC3=C(C(O)=O)C(C(=O)O)=CC=C3C=C21 FNGGVJIEWDRLFV-UHFFFAOYSA-N 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OSIVCXJNIBEGCL-UHFFFAOYSA-N bis(2,2,6,6-tetramethyl-1-octoxypiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(OCCCCCCCC)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(OCCCCCCCC)C(C)(C)C1 OSIVCXJNIBEGCL-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- XBZSBBLNHFMTEB-UHFFFAOYSA-N cyclohexane-1,3-dicarboxylic acid Chemical compound OC(=O)C1CCCC(C(O)=O)C1 XBZSBBLNHFMTEB-UHFFFAOYSA-N 0.000 description 1
- VEIOBOXBGYWJIT-UHFFFAOYSA-N cyclohexane;methanol Chemical compound OC.OC.C1CCCCC1 VEIOBOXBGYWJIT-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- GWZCCUDJHOGOSO-UHFFFAOYSA-N diphenic acid Chemical compound OC(=O)C1=CC=CC=C1C1=CC=CC=C1C(O)=O GWZCCUDJHOGOSO-UHFFFAOYSA-N 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- ORECYURYFJYPKY-UHFFFAOYSA-N n,n'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine;2,4,6-trichloro-1,3,5-triazine;2,4,4-trimethylpentan-2-amine Chemical compound CC(C)(C)CC(C)(C)N.ClC1=NC(Cl)=NC(Cl)=N1.C1C(C)(C)NC(C)(C)CC1NCCCCCCNC1CC(C)(C)NC(C)(C)C1 ORECYURYFJYPKY-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- NXPPAOGUKPJVDI-UHFFFAOYSA-N naphthalene-1,2-diol Chemical compound C1=CC=CC2=C(O)C(O)=CC=C21 NXPPAOGUKPJVDI-UHFFFAOYSA-N 0.000 description 1
- DFFZOPXDTCDZDP-UHFFFAOYSA-N naphthalene-1,5-dicarboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=CC=CC2=C1C(O)=O DFFZOPXDTCDZDP-UHFFFAOYSA-N 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 125000005447 octyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 description 1
- 125000004482 piperidin-4-yl group Chemical group N1CCC(CC1)* 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000570 polyether Chemical class 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- PDEDQSAFHNADLV-UHFFFAOYSA-M potassium;disodium;dinitrate;nitrite Chemical compound [Na+].[Na+].[K+].[O-]N=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PDEDQSAFHNADLV-UHFFFAOYSA-M 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002683 reaction inhibitor Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 125000001273 sulfonato group Chemical class [O-]S(*)(=O)=O 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- DXNCZXXFRKPEPY-UHFFFAOYSA-N tridecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCC(O)=O DXNCZXXFRKPEPY-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000009976 warp beam dyeing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/448—Yarns or threads for use in medical applications
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/14—Dyeability
Definitions
- the present invention relates to false twisted yarn made of dyeable polyolefin fiber. More specifically, a polyolefin fiber having excellent lightness has been provided with vivid and deep color developability and bulkiness suitable for clothing material use, and is a temporary fiber made of dyeable polyolefin fiber that can be suitably used as a fiber structure. It relates to twisted yarn.
- Polyethylene fiber or polypropylene fiber which is a kind of polyolefin fiber, is excellent in lightness and chemical resistance, but has a drawback that it is difficult to dye because it does not have a polar functional group. Therefore, it is not suitable for apparel use.
- interior use such as tile carpets, household rugs, and car mats
- material uses such as ropes, curing nets, filter cloths, narrow tapes, braids and chairs. Are used in certain applications.
- a simple dyeing method for polyolefin fibers includes the addition of pigments.
- pigments it is difficult to stably develop clear color development and light shades like dyes, and when pigments are used, the fibers tend to become hard and the flexibility is impaired. there were.
- Patent Document 1 attempts to improve dyeability by modifying the surface of polyolefin fibers by graft copolymerization of vinyl compounds by ozone treatment or ultraviolet irradiation.
- Patent Document 2 proposes a dyeable polyolefin fiber obtained by blending polyester or polyamide into a polyolefin as a dyeable polymer.
- Patent Document 3 and Patent Document 4 attempt to improve color developability by making the dyeable polymer blended with polyolefin amorphous. Specifically, in Patent Document 3, a polyester copolymerized with cyclohexanedimethanol, and in Patent Document 4, a polyester copolymerized with isophthalic acid and cyclohexanedimethanol is dyeable as a non-crystalline polymer that can be dyed. Polyolefin fibers have been proposed.
- Patent Document 5 proposes a dyeable polypropylene-based crimped fiber made of a saturated polyester resin, a modified polypropylene resin, and an unmodified polypropylene resin as a polyolefin fiber imparted with dyeability and bulkiness.
- JP-A-7-90783 JP-A-4-209824 Special table 2008-533315 JP-T-2001-522947 JP 2008-63671 A
- Patent Document 1 requires a long time for ozone treatment and ultraviolet irradiation, so that the productivity is low and the barrier to industrialization is high.
- the problem of the present invention is to solve the above-mentioned problems of the prior art, and to the polyolefin fiber excellent in light weight, vivid and deep color development and bulkiness suitable for clothing use.
- An object of the present invention is to provide a false twisted yarn made of dyeable polyolefin fibers that can be suitably employed as a fiber structure.
- the object of the present invention is a sea-island structure in which the polyolefin (A) is a sea component and the polyester (B) copolymerized with cyclohexanedicarboxylic acid is an island component, and the dispersion diameter of the island component in the fiber cross section is 30 to 1000 nm.
- a false twisted yarn comprising a dyeable polyolefin fiber, characterized in that the polymer alloy fiber comprises three or more polymer alloy fibers and has the following physical properties (1) and (2): It can be solved by a fiber structure.
- Hot water dimensional change rate 0.0 to 7.0%.
- the polyester (B) contains 3.0 to 20.0 with respect to 100 parts by weight of the total of the compatibilizer (C) and the polyolefin (A), polyester (B), and compatibilizer (C). It is preferably contained in parts by weight.
- a false twisted yarn comprising a dyeable polyolefin fiber having a vivid and deep color developability while being a polyolefin fiber excellent in lightness.
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention has a sea-island structure in which the polyolefin (A) is a sea component and the polyester (B) copolymerized with cyclohexanedicarboxylic acid is an island component, and is an island component in the fiber cross section.
- the polyolefin (A) is a sea component
- the polyester (B) copolymerized with cyclohexanedicarboxylic acid is an island component, and is an island component in the fiber cross section.
- the polyester (B) copolymerized with cyclohexanedicarboxylic acid on the island component as a dyeable polymer
- coloring property can be imparted to the false twisted yarn made of the polyolefin (A).
- the dyeable polymer of the island component is exposed on the fiber surface.
- fibers with higher color development can be obtained.
- the coloring efficiency by the light transmitted to the island component is improved, and vivid and deep coloring can be realized.
- the polymer alloy fiber in the present invention is a fiber in which island components are discontinuously dispersed.
- the island component is discontinuous means that the island component has an appropriate length, and at any interval within the same single yarn, a cross-section perpendicular to the fiber axis, that is, a sea-island structure in the fiber cross-section This means that the shapes are different.
- the discontinuity of the island component in the present invention can be confirmed by the method described in the examples.
- the island components When the island components are discontinuously dispersed, the island components have a spindle shape, so that the coloring efficiency by light transmitted to the island components is improved, the sharpness is improved, and deep color development is obtained.
- the polymer alloy fiber according to the present invention is a core-sheath composite fiber in which one island is formed continuously and in the same shape in the fiber axis direction, or a sea island in which a plurality of islands are formed in the fiber axis direction and have the same shape. It is essentially different from a composite fiber.
- a polymer alloy fiber is formed from, for example, a polymer alloy composition formed by kneading a polyolefin (A) and a polyester (B) copolymerized with cyclohexanedicarboxylic acid at an arbitrary stage before melt spinning is completed. Can be obtained.
- the dispersion diameter of the island component in the fiber cross section of the polymer alloy fiber constituting the false twisted yarn comprising the dyeable polyolefin fiber of the present invention is 30 to 1000 nm.
- the dispersion diameter of the island component in a fiber cross section refers to the value measured by the method of an Example description. If the dispersion diameter of the island component in the fiber cross section is 30 nm or more, the dye is exhausted and fixed to the polyester (B) of the island component, and the coloring efficiency by the light transmitted to the island component is improved, and it is bright and deep Color development can be realized.
- the dispersion diameter of the island component in the fiber cross section is 1000 nm or less, the area of the sea-island interface can be made sufficiently large, so that interfacial peeling and wear due to this can be suppressed. Friction fastness is good.
- the smaller the dispersion diameter of the island component the more the dye compound can be suppressed to be close to monodispersion, the coloring efficiency is improved, and the light fastness and washing fastness are good when dyed. Become.
- the spinnability when melt spinning the polyolefin fiber is improved. Therefore, the dispersion diameter of the island component in the fiber cross section is preferably 700 nm or less, more preferably 500 nm or less, and particularly preferably 300 nm or less.
- the false twisted yarn made of the dyeable polyolefin fiber of the present invention is characterized by an expansion / contraction recovery rate (CR) of 10 to 40%.
- the expansion / contraction restoration ratio (CR) in the present invention is a value measured by the method described in JIS L1013 (2010) 8.12.
- the expansion / contraction recovery rate (CR) is 10% or more, preferably 15% or more, and more preferably 20% or more.
- CR expansion / contraction recovery rate
- the practical lower limit of the expansion / contraction recovery rate (CR) is 0%.
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention is characterized by a hot water dimensional change rate of 0.0 to 7.0%.
- the hot water dimensional change rate in the present invention is a value measured by the method described in JIS L1013 (2010) 8.18.1 (hot water dimensional change rate: skein dimensional change rate (A method)).
- the hot water dimensional change rate is more preferably 6.0% or less, and further preferably 5.0% or less. The smaller the hot water dimensional change rate, the better.
- the value is smaller than 0.0 (when the value is negative)
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention is used as a woven or knitted fabric, dyeing is performed. Since heating elongation sometimes occurs, it is not preferable from the viewpoint of dimensional stability.
- the sea component constituting the sea-island structure of false twisted yarn made of the dyeable polyolefin fiber of the present invention is polyolefin (A). Since polyolefin has a low specific gravity, it is possible to obtain fibers having excellent lightness.
- the polyolefin (A) include, but are not limited to, polyethylene, polypropylene, polybutene-1, polymethylpentene and the like. Among them, polypropylene is preferable because of good molding processability and excellent mechanical properties, and polymethylpentene has a high melting point and excellent heat resistance, and has the lowest specific gravity among polyolefins and is excellent in lightness. preferable. From the viewpoint of strength and bulkiness, polypropylene can be particularly preferably employed.
- the polyolefin (A) may be a homopolymer or a copolymer with another ⁇ -olefin.
- Other ⁇ -olefins hereinafter sometimes simply referred to as ⁇ -olefins may be copolymerized by one kind or two or more kinds.
- the carbon number of the ⁇ -olefin is preferably 2 to 20, and the molecular chain of the ⁇ -olefin may be linear or branched.
- Specific examples of the ⁇ -olefin include ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1- Examples include, but are not limited to, eicosene, 3-methyl-1-butene, 3-methyl-1-pentene, 3-ethyl-1-pentene, and 3-ethyl-1-hexene.
- the copolymerization rate of ⁇ -olefin is preferably 20 mol% or less.
- An ⁇ -olefin copolymerization rate of 20 mol% or less is preferred because false twisted yarns made of dyeable polyolefin fibers having good mechanical properties and heat resistance can be obtained.
- the copolymerization ratio of ⁇ -olefin is more preferably 15 mol% or less, and further preferably 10 mol% or less.
- the island component constituting the sea-island structure of false twisted yarn made of the dyeable polyolefin fiber of the present invention is polyester (B) copolymerized with cyclohexanedicarboxylic acid.
- the refractive index of the polymer constituting the fiber when the refractive index of the polymer constituting the fiber is lowered, the reflected light from the fiber surface is reduced, the light penetrates sufficiently into the fiber, and a vivid and deep coloring property can be imparted. .
- the aromatic ring concentration of the polymer is a value calculated by the following formula using the copolymerization rate (mol%) of the copolymer component having an aromatic ring and the molecular weight (g / mol) of the repeating unit.
- Aromatic ring concentration (mol / kg) copolymerization ratio of copolymer component having aromatic ring (mol%) ⁇ 10 ⁇ molecular weight of repeating unit (g / mol).
- PET Polyethylene terephthalate
- terephthalic acid is a copolymer component having an aromatic ring
- Patent Documents 3 and 4 a polyester obtained by copolymerizing cyclohexanedimethanol with PET is proposed, the copolymerization rate of the copolymer component having an aromatic ring is the same as that of PET, and the molecular weight of the repeating unit is higher than that of PET. .
- the aromatic ring concentration calculated by the above formula is slightly lower than that of PET, and the refractive index is slightly lower than that of PET.
- the aromatic ring concentration calculated by the above formula is lower than that when cyclohexanedimethanol is copolymerized, and the refractive index is also lower, so that the color developability is higher, and vivid and deep color development is realized. be able to.
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention is characterized in that the number of filaments (the polymer alloy fiber) is 3 (the number) or more.
- the number of filaments can be appropriately selected according to the intended use and required characteristics, but is preferably 6 or more, more preferably 12 or more from the viewpoint of false twisting workability and flexibility.
- the upper limit of the number of filaments is not particularly limited. However, the higher the number of filaments, the lower the leveling property of the false twisted yarn comprising the dyeable polyolefin fiber of the present invention. It is more preferable that it is 150 or less.
- the polyester (B) is preferably copolymerized with 10 to 50 mol% of cyclohexanedicarboxylic acid with respect to the total dicarboxylic acid component.
- the polyester (B) in the present invention is defined as a polycondensate comprising at least three kinds of components selected from a dicarboxylic acid component and a diol component.
- a copolyester (B ) when all the dicarboxylic acid components consist only of cyclohexanedicarboxylic acid, that is, when cyclohexanedicarboxylic acid is 100 mol%, even if the diol component is one type or two or more types, a copolyester (B ).
- the copolymerization rate of cyclohexanedicarboxylic acid is more preferably 15 mol% or more, and further preferably 20 mol% or more.
- the copolymerization ratio of cyclohexanedicarboxylic acid is 30 mol% or more, the polymer becomes amorphous, and since more dye is exhausted to the polymer, higher color developability can be obtained. It can be suitably employed.
- the copolymerization rate of cyclohexanedicarboxylic acid is 50 mol% or less, the processability is improved in the higher-order processing step, and the fineness variation value U of the false twisted yarn made of dyeable polyolefin fiber is obtained. % (Hi) also becomes low. Furthermore, the leveling property at the time of dyeing, light fastness and washing fastness are good. Therefore, the copolymerization rate of cyclohexanedicarboxylic acid is preferably 50 mol% or less, more preferably 45 mol% or less, and further preferably 40 mol% or less.
- the cyclohexanedicarboxylic acid in the present invention may be any of 1,2-cyclohexanedicarboxylic acid, 1,3-cyclohexanedicarboxylic acid and 1,4-cyclohexanedicarboxylic acid, and may be used alone or in combination of two or more. You may use together. Of these, 1,4-cyclohexanedicarboxylic acid can be suitably employed from the viewpoints of heat resistance and mechanical properties.
- the polyester (B) may be copolymerized with other copolymerization components.
- specific examples thereof include terephthalic acid, phthalic acid, isophthalic acid, 5-sodium sulfoisophthalic acid, 1,5-naphthalene dicarboxylic acid.
- aromatic dicarboxylic acids such as 2,6-naphthalenedicarboxylic acid, 2,2′-biphenyldicarboxylic acid, 3,3′-biphenyldicarboxylic acid, 4,4′-biphenyldicarboxylic acid, anthracenedicarboxylic acid, malonic acid, Fumaric acid, maleic acid, succinic acid, itaconic acid, adipic acid, azelaic acid, sebacic acid, 1,11-undecanedicarboxylic acid, 1,12-dodecanedicarboxylic acid, 1,14-tetradecanedicarboxylic acid, 1,18-octadecane Dicarboxylic acid, 1,2-cyclohexanedicarboxylic acid, 1,3-cyclohexa Aliphatic dicarboxylic acids such as dicarboxylic acid and dimer acid, aromatic diols such as catechol, naphthalenediol, and bisphenol
- a compatibilizer (C) may be contained for the purpose of improving the color developability of the false twisted yarn. Addition of the compatibilizer (C) improves the dispersibility of the polyester (B) as an island component and improves the interfacial adhesion between the sea component and the island component. It becomes.
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention contains a compatibilizing agent (C) and is 100 parts by weight in total of the polyolefin (A), polyester (B), and compatibilizing agent (C).
- the polyester (B) is preferably contained in an amount of 3.0 to 20.0 parts by weight.
- the polyester (B) having a low refractive index and high color developability is scattered in the polyolefin (A) having a low refractive index. This is preferable because deep color development can be realized.
- the content of the polyester (B) is more preferably 4.0 parts by weight or more, and further preferably 5.0 parts by weight or more.
- the content of the polyester (B) is 20.0 parts by weight or less, coloring efficiency by light transmitted to the island component is improved by dyeing a large number of island components with respect to the sea component.
- deep color development is preferable.
- light fastness, wash fastness and friction fastness are good.
- the polyolefin (A) is preferred because it does not impair the lightness, expansion / contraction recovery rate, and hot water dimensional change rate.
- the content of the polyester (B) is more preferably 17.0 parts by weight or less, and further preferably 15.0 parts by weight or less.
- the compatibilizer (C) is appropriately selected according to the copolymerization ratio of the cyclohexanedicarboxylic acid of the polyester (B), the composite ratio of the sea component polyolefin (A) and the island component polyester (B), and the like. can do.
- only 1 type may be used for a compatibilizing agent (C), and 2 or more types may be used together.
- the compatibilizing agent (C) has both a hydrophobic component having high affinity with the highly hydrophobic sea component polyolefin (A) and a functional group having high affinity with the island component polyester (B). Both are preferably compounds contained in a single molecule. Alternatively, a compound in which both a hydrophobic component having a high affinity for the highly hydrophobic sea component polyolefin (A) and a functional group capable of reacting with the island component polyester (B) are contained in a single molecule. Can be suitably employed as the compatibilizing agent (C).
- hydrophobic component constituting the compatibilizer (C) examples include polyolefin resins such as polyethylene, polypropylene and polymethylpentene, acrylic resins such as polymethyl methacrylate, styrene resins such as polystyrene, and ethylene-propylene co-polymers.
- Polymer ethylene-butylene copolymer, propylene-butylene copolymer, styrene-butadiene-styrene copolymer, styrene-isoprene-styrene copolymer, styrene-ethylene-butylene-styrene copolymer, styrene-ethylene- Examples thereof include, but are not limited to, conjugated diene resins such as propylene-styrene copolymers.
- the functional group having a high affinity with the polyester (B) or the functional group capable of reacting with the polyester (B) constituting the compatibilizer (C) include an acid anhydride group, a carboxyl group, a hydroxyl group, and an epoxy.
- compatibilizer (C) examples include maleic anhydride modified polyethylene, maleic anhydride modified polypropylene, maleic anhydride modified polymethylpentene, epoxy modified polypropylene, epoxy modified polystyrene, maleic anhydride modified styrene-ethylene-butylene-styrene.
- examples thereof include, but are not limited to, copolymers, amine-modified styrene-ethylene-butylene-styrene copolymers, and imine-modified styrene-ethylene-butylene-styrene copolymers.
- polyolefin resin acrylic resin, styrene resin and conjugated diene resin containing at least one functional group selected from acid anhydride group, carboxyl group, hydroxyl group, epoxy group, amino group and imino group
- a styrene-ethylene-butylene-styrene copolymer containing at least one functional group selected from an amino group and an imino group has high reactivity with the polyester (B), and also has a polyolefin (A ) Is highly effective in improving the dispersibility of polyester (B).
- A polyolefin
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention is 100 parts by weight in total of the polyolefin (A), polyester (B), and compatibilizer (C).
- the compatibilizing agent (C) is preferably contained in an amount of 0.1 to 10.0 parts by weight. If the content of the compatibilizer (C) is 0.1 parts by weight or more, a compatibilizing effect between the polyolefin (A) and the polyester (B) can be obtained. It is preferable because it can suppress the aggregation of water and can be close to monodispersion, improve the color development efficiency, and provide a vivid and deep color development.
- the content of the compatibilizer (C) is more preferably 0.3 parts by weight or more, and further preferably 0.5 parts by weight or more.
- the content of the compatibilizer (C) is 10.0 parts by weight or less, the fiber characteristics derived from the polyolefin (A) and the polyester (B) constituting the false twisted yarn composed of the dyeable polyolefin fiber. And the appearance and texture can be maintained. Further, it is preferable because instability of the yarn maneuverability due to an excessive compatibilizing agent can be suppressed.
- the content of the compatibilizer (C) is more preferably 7.0 parts by weight or less, and further preferably 5.0 parts by weight or less.
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention preferably contains an antioxidant.
- an antioxidant By containing an antioxidant, not only the oxidative degradation of polyolefin due to long-term storage or tumbler drying is suppressed, but also durability of fiber properties such as mechanical properties is improved, which is preferable.
- the antioxidant is preferably any one of a phenol compound, a phosphorus compound, and a hindered amine compound. These antioxidants may use only 1 type and may use 2 or more types together.
- the phenolic compound is a radical chain reaction inhibitor having a phenol structure, and only one type may be used or two or more types may be used in combination.
- pentaerythritol-tetrakis (3- (3,5-di-t-butyl-4-hydroxyphenol) propionate) (for example, Irganox 1010 manufactured by BASF)
- 2,4,6-tris (3 ′, 5′- Di-t-butyl-4′-hydroxybenzyl) mesitylene
- Adeka Stab AO-330 manufactured by ADEKA 3,9-bis [1,1-dimethyl-2- [ ⁇ - (3-t-butyl-4- Hydroxy-5-methylphenyl) propionyloxy] ethyl] -2,4,8,10-tetraoxaspiro [5,5] -undecane (for example, Sumitomo Chemical's Smither GA-80), 1,3,5-tris [[4- (1,1-
- the phosphorus compound is a phosphorus antioxidant that reduces peroxides without generating radicals and oxidizes itself, and may be used alone or in combination of two or more. May be.
- tris (2,4-di-t-butylphenyl) phosphite for example, Irgafos 168 manufactured by BASF
- 3,9-bis (2,6-di-t-butyl-4-methylphenoxy) -2 4,8,10-tetraoxa-3,9-diphosphaspiro [5,5] undecane
- ADEKA ADEKA STAB PEP-36 can be suitably used because of its high oxidative degradation inhibiting effect.
- a hindered amine-based compound is a hindered amine-based antioxidant that has an effect of capturing radicals generated by ultraviolet rays or heat and regenerating a phenol-based antioxidant deactivated by functioning as an antioxidant.
- an amino ether type hindered amine compound or a high molecular weight type hindered amine compound having a molecular weight of 1000 or more can be suitably employed.
- amino ether type hindered amine compounds include bis (1-undecanoxy-2,2,6,6-tetramethylpiperidin-4-yl) carbonate (for example, Adeka Stab LA-81 manufactured by ADEKA), bis (2) decanedioic acid bis [ 2,2,6,6-tetramethyl-1- (octyloxy) piperidin-4-yl] (for example, Tinuvin PA123 manufactured by BASF) and the like, but are not limited thereto.
- a high molecular weight hindered amine compound having a molecular weight of 1000 or more is preferable because elution from the inside of the fiber due to washing or cleaning using an organic solvent can be suppressed.
- NN′—N ′′ —N ′ ′′-tetrakis (4,6-bis (butyl- (N-methyl-2,2,6, 6-tetramethylpiperidin-4-yl) amino) triazin-2-yl) -4,7-diazadecane-1,10-diamine) (SABO SABOSTAB UV119), poly ((6-((1,1,3) , 3-tetramethylbutyl) amino) -1,3,5-triazine-2,4-diyl) (2,2,6,6-tetramethyl-4-piperidinyl) imino) -1,6-hexanediyl ( 2,2,6,6-tetramethyl-4-piperidinyl) imino))) (for example, CHIMASSORB944 from BASF), dibutylamine-1,3,5-triazine-N, N
- the content of the antioxidant is 0.000 based on the total of 100 parts by weight of the polyolefin (A), polyester (B), and compatibilizer (C). It is preferably 1 to 5.0 parts by weight. If the content of the antioxidant is 0.1 parts by weight or more, the effect of suppressing oxidative degradation can be imparted to the fiber, which is preferable.
- the content of the antioxidant is more preferably 0.3 parts by weight or more, and further preferably 0.5 parts by weight or more. On the other hand, if the content of the antioxidant is 5.0 parts by weight or less, the color tone of the fiber is not deteriorated and the mechanical properties are not impaired, which is preferable.
- the content of the antioxidant is more preferably 4.0 parts by weight or less, further preferably 3.0 parts by weight or less, and particularly preferably 2.0 parts by weight or less.
- the false twisted yarn made of the dyeable polyolefin fiber of the present invention is given a spinning oil or false twisting oil according to the purpose and application.
- a component which comprises an oil agent an aliphatic ester type compound and a polyether type compound are preferable as a smoothing agent which improves process passage property.
- an emulsifier for water and various oil component components nonionic surfactants are preferred.
- polyolefin fibers hardly absorb moisture as compared with polyester fibers and the like, they tend to cause triboelectric charging. For this reason, fatty acid salts (soaps), phosphate compounds, sulfonate compounds, and the like can be suitably employed as antistatic agents from the viewpoint of improving process passability.
- the false twisted yarn composed of the dyeable polyolefin fiber of the present invention may be subjected to various modifications by adding secondary additives.
- secondary additives include phenolic antioxidants, phosphorus antioxidants, hindered amine antioxidants, plasticizers, ultraviolet absorbers, infrared absorbers, fluorescent brighteners, mold release agents, antibacterial agents , Nucleating agent, heat stabilizer, antistatic agent, anti-coloring agent, adjusting agent, matting agent, antifoaming agent, preservative, gelling agent, latex, filler, ink, coloring agent, dye, pigment, fragrance, etc.
- these secondary additives may be used alone or in combination of two or more.
- the fineness of the false twisted yarn comprising the dyeable polyolefin fiber of the present invention can be appropriately selected according to the use and required properties, but is preferably 10 to 500 dtex.
- the fineness in the present invention refers to a value measured by the method described in the examples. If the fineness of the false twisted yarn made of dyeable polyolefin fiber is 10 dtex or more, it is preferable because the yarn breakage is small, the processability is good, the generation of fluff is small during use, and the durability is excellent. .
- the fineness of false twisted yarn made of dyeable polyolefin fibers is more preferably 30 dtex or more, and further preferably 50 dtex or more.
- the fineness of the false twisted yarn made of dyeable polyolefin fiber is 500 dtex or less, the flexibility of the fiber and the fiber structure is not impaired, which is preferable.
- the fineness of false twisted yarn made of dyeable polyolefin fibers is more preferably 300 dtex or less, and further preferably 150 dtex or less.
- the single yarn fineness of the false twisted yarn comprising the dyeable polyolefin fiber of the present invention can be appropriately selected according to the application and required characteristics, but is preferably 0.5 to 20 dtex.
- the single yarn fineness in the present invention refers to a value obtained by dividing the fineness measured by the method described in the examples by the number of single yarns. If the single yarn fineness of false twisted yarn made of dyeable polyolefin fiber is 0.5 dtex or more, yarn breakage is low, process passing is good, and there is little generation of fluff during use, durability It is preferable because it is excellent.
- the single yarn fineness of false twisted yarn made of dyeable polyolefin fiber is more preferably 0.6 dtex or more, and further preferably 0.8 dtex or more.
- the single yarn fineness of the false twisted yarn made of dyeable polyolefin fiber is 20 dtex or less, the flexibility of the fiber and the fiber structure is not impaired, which is preferable.
- the single yarn fineness of false twisted yarns made of dyeable polyolefin fibers is more preferably 10 dtex or less, and even more preferably 6 dtex or less.
- the strength of the false twisted yarn comprising the dyeable polyolefin fiber of the present invention can be appropriately selected according to the use and required properties, but is 1.0 to 6.0 cN / dtex from the viewpoint of mechanical properties. It is preferable.
- the strength in the present invention refers to a value measured by the method described in the examples. If the strength of the false twisted yarn made of dyeable polyolefin fiber is 1.0 cN / dtex or more, it is preferable because there is little generation of fluff during use and excellent durability.
- the strength of the false twisted yarn made of dyeable polyolefin fibers is more preferably 1.5 cN / dtex or more, and further preferably 2.0 cN / dtex or more.
- the elongation of the false twisted yarn comprising the dyeable polyolefin fiber of the present invention can be appropriately selected according to the application and required characteristics, but is preferably 10 to 60% from the viewpoint of durability.
- the elongation in the present invention refers to a value measured by the method described in the examples. If the elongation of false twisted yarn made of dyeable polyolefin fiber is 10% or more, the wear resistance of the fiber and the fiber structure will be good, and there will be less occurrence of fuzz during use, resulting in good durability. preferable.
- the elongation of false twisted yarn made of dyeable polyolefin fibers is more preferably 15% or more, and further preferably 20% or more.
- the false twisted yarn made of dyeable polyolefin fiber has an elongation of 60% or less because the dimensional stability of the fiber and the fiber structure becomes good.
- the elongation of false twisted yarn made of dyeable polyolefin fibers is more preferably 55% or less, and further preferably 50% or less.
- the fineness variation value U% (hi) of the false twisted yarn comprising the dyeable polyolefin fiber of the present invention is preferably 0.1 to 1.5%.
- the fineness fluctuation value U% (hi) in the present invention refers to a value measured by the method described in the examples.
- the fineness variation value U% (hi) is an index of thickness variation in the fiber longitudinal direction, and the smaller the fineness variation value U% (hi), the smaller the thickness variation in the longitudinal direction of the fiber.
- the fineness variation value U% (hi) is preferably as small as possible from the viewpoints of process passability and leveling property, but the lower limit is 0.1% as a manufacturable range.
- the fineness variation value U% (hi) of the false twisted yarn made of dyeable polyolefin fiber is 1.5% or less, the uniformity in the fiber longitudinal direction is excellent, and fluff and yarn breakage occur. In addition, it is difficult to cause defects such as dye spots and dyed streaks when dyed, and a fiber structure excellent in levelness can be obtained, which is preferable.
- the fineness variation value U% (hi) of false twisted yarn made of dyeable polyolefin fibers is more preferably 1.2% or less, further preferably 1.0% or less, and 0.9% or less. It is particularly preferred that
- the specific gravity of the false twisted yarn comprising the dyeable polyolefin fiber of the present invention is preferably 0.83 to 1.0.
- the specific gravity in the present invention refers to a value measured by the method described in Examples, and is the true specific gravity.
- Polyolefin has a low specific gravity.
- the specific gravity of polymethylpentene is 0.83
- the specific gravity of polypropylene is 0.91.
- coloring property can be imparted to a polyolefin fiber having excellent lightness by using a polymer alloy fiber comprising a low specific gravity polyolefin and a dyeable copolymer polyester.
- the specific gravity of false twisted yarn made of dyeable polyolefin fibers varies depending on the specific gravity of the polyester (B) combined with the polyolefin (A), the composite ratio of the polyolefin (A) and the polyester (B), and the like.
- the specific gravity of false twisted yarn made of dyeable polyolefin fibers is preferably as small as possible from the viewpoint of lightness, and is preferably 1.0 or less.
- the specific gravity of the false twisted yarn made of dyeable polyolefin fibers is 1.0 or less, it is preferable because both the lightness by the polyolefin (A) and the color development by the polyester (B) can be achieved.
- the specific gravity of false twisted yarn made of dyeable polyolefin fibers is more preferably 0.97 or less, and even more preferably 0.95 or less.
- the cross-sectional shape of the polyolefin fiber constituting the dyeable false twisted yarn of the present invention is not particularly limited and can be appropriately selected according to the application and required characteristics, and may be a perfect circular cross section.
- a non-circular cross section may be used. Specific examples of non-circular cross-sections include multilobal, polygonal, flat, elliptical, C-shaped, H-shaped, S-shaped, T-shaped, W-shaped, X-shaped, Y-shaped, paddy-shaped, cross-shaped, hollow However, it is not limited to these.
- the false twisted yarn made of the dyeable polyolefin fiber of the present invention can be processed into a twisted yarn and the like in the same manner as general fibers, and weaving and knitting can be handled in the same manner as general fibers.
- a known melt spinning method, stretching method or false twisting method can be used as a method for producing a false twisted yarn comprising the dyeable polyolefin fiber of the present invention.
- an undrawn yarn or drawn yarn made of polymer alloy fiber is obtained by melt spinning, and then false twisting is performed to obtain a false twisted yarn made of dyeable polyolefin fiber.
- Examples of methods for obtaining polymer alloy fibers that can be discharged from a spinneret into fiber threads include, but are not limited to, the following examples.
- a chip obtained by melting and kneading the sea component and island component in advance with an extruder or the like is dried as necessary, the chip is supplied to a melt spinning machine and melted. Weigh. Then, after introducing into the spinning pack heated in the spinning block and filtering the molten polymer in the spinning pack, there is a method of discharging from the spinneret into a fiber yarn.
- the chips are dried as necessary, and the sea component and the island component are mixed in the state of the chips, and then the mixed chips are supplied to the melt spinning machine to be melted and measured with a metering pump. Then, after introducing into the spinning pack heated in the spinning block and filtering the molten polymer in the spinning pack, there is a method of discharging from the spinneret into a fiber yarn.
- the water content is 0.3% by weight or less.
- a water content of 0.3% by weight or less is preferable because it does not cause foaming due to moisture during melt spinning and enables stable spinning. Further, it is preferable because deterioration of mechanical properties and deterioration of color tone due to hydrolysis are suppressed.
- the water content is more preferably 0.2% by weight or less, and further preferably 0.1% by weight or less.
- the melt viscosity ratio of the sea component polymer and the island component polymer at the spinning temperature may be in the range of 0.1 to 10.
- the melt viscosity ratio in the present invention is a value calculated from the following equation from the melt viscosity A of the sea component and the melt viscosity B of the island component measured by the method described in the examples.
- Melt viscosity ratio melt viscosity A of sea component / melt viscosity B of island component.
- the melt viscosity ratio is preferably in the range of 0.3 to 9, and more preferably in the range of 0.5 to 8.
- the melt viscosity ratio may be increased as already described. Thereby, the fall of the heat setting property of the false twisted yarn which consists of polyolefin by an island component polymer can be suppressed.
- the melt viscosity ratio may be increased. Thereby, since the fall of the heat setting property of the false twisted yarn which consists of polyolefin by an island component polymer can be suppressed, a hot-water dimensional change rate falls.
- the fiber yarn discharged from the spinneret is cooled and solidified by a cooling device, taken up by a first godet roller, wound up by a winder through a second godet roller, and taken up as a wound yarn.
- a heating cylinder or a thermal insulation cylinder having a length of 2 to 20 cm may be provided below the spinneret as necessary.
- the spinning temperature in melt spinning can be appropriately selected according to the melting point and heat resistance of the polyolefin (A), polyester (B), and compatibilizer (C), but is preferably 220 to 320 ° C. If the spinning temperature is 220 ° C. or higher, the elongation viscosity of the fiber yarn discharged from the spinneret is sufficiently lowered, so that the discharge is stable, and further, the spinning tension is not excessively increased and the yarn breakage is suppressed. This is preferable.
- the spinning temperature is more preferably 230 ° C. or higher, and further preferably 240 ° C. or higher. On the other hand, if the spinning temperature is 320 ° C.
- the spinning temperature is more preferably 300 ° C. or lower, and further preferably 280 ° C. or lower.
- the spinning speed in melt spinning can be appropriately selected according to the composite ratio of the polyolefin (A) and the polyester (B), the spinning temperature, etc., but is preferably 500 to 6000 m / min.
- a spinning speed of 500 m / min or more is preferable because the running yarn is stable and yarn breakage can be suppressed.
- the spinning speed is more preferably 1000 m / min or more, and further preferably 1500 m / min or more.
- a spinning speed of 6000 m / min or less is preferable because stable spinning can be performed without yarn breakage by suppressing spinning tension.
- the spinning speed in the case of the two-step method is more preferably 4500 m / min or less, and further preferably 4000 m / min or less.
- the spinning speed in the one-step method in which spinning and stretching are performed simultaneously without winding is preferably 500 to 5000 m / min for the low speed roller and 2500 to 6000 m / min for the high speed roller. It is preferable that the low-speed roller and the high-speed roller are within the above ranges because the running yarn is stabilized, yarn breakage can be suppressed, and stable spinning can be performed.
- the spinning speed in the one-step method is more preferably 1000 to 4500 m / min for the low speed roller, 3500 to 5500 m / min for the high speed roller, 1500 to 4000 m / min for the low speed roller, and 4000 to 5000 m / min for the high speed roller. More preferably.
- the heating method in stretching is not particularly limited as long as it is a device that can directly or indirectly heat the traveling yarn.
- Specific examples of the heating method include, but are not limited to, a heating roller, a hot pin, a hot plate, a liquid bath such as hot water and hot water, a gas bath such as hot air and steam, and a laser. These heating methods may be used alone or in combination. Heating methods include control of the heating temperature, uniform heating of the running yarn, and contact with the heating roller, contact with the hot pin, contact with the hot plate, and immersion in a liquid bath from the viewpoint of not complicating the device. It can be suitably employed.
- the stretching temperature when stretching can be appropriately selected according to the melting point of the polyolefin (A), polyester (B), compatibilizer (C), the strength of the fiber after stretching, the elongation, etc. It is preferably 20 to 150 ° C. If the drawing temperature is 20 ° C. or higher, the yarn supplied to the drawing is sufficiently preheated, the thermal deformation during drawing becomes uniform, and the occurrence of fluff and fineness spots can be suppressed, and the longitudinal direction of the fiber This is preferable because it is possible to obtain a fiber having excellent uniformity and uniform dyeing property.
- the stretching temperature is more preferably 30 ° C. or higher, and further preferably 40 ° C. or higher. On the other hand, when the stretching temperature is 150 ° C.
- the stretching temperature is more preferably 145 ° C. or less, and further preferably 140 ° C. or less. Further, heat setting at 60 to 150 ° C. may be performed as necessary.
- the draw ratio in the case of stretching can be appropriately selected according to the elongation of the fiber before stretching, the strength and elongation of the fiber after stretching, etc., but is 1.02 to 7.0 times Is preferred.
- a draw ratio of 1.02 or more is preferable because mechanical properties such as fiber strength and elongation can be improved by drawing.
- the draw ratio is more preferably 1.2 times or more, and further preferably 1.5 times or more.
- the draw ratio is if the draw ratio is 7.0 times or less, yarn breakage during drawing is suppressed, and stable drawing can be performed.
- the draw ratio is more preferably 6.0 times or less, and even more preferably 5.0 times or less.
- the stretching speed in the case of stretching can be appropriately selected depending on whether the stretching method is a one-step method or a two-step method.
- the speed of the high-speed roller corresponding to the spinning speed corresponds to the stretching speed.
- the stretching speed is preferably 30 to 1000 m / min.
- a stretching speed of 30 m / min or more is preferable because the running yarn is stable and yarn breakage can be suppressed.
- the stretching speed when stretching by the two-step method is more preferably 50 m / min or more, and further preferably 100 m / min or more.
- a stretching speed of 1000 m / min or less is preferable because yarn breakage during stretching can be suppressed and stable stretching can be performed.
- the stretching speed when stretching by the two-step method is more preferably 900 m / min or less, and further preferably 800 m / min or less.
- the elongation of the undrawn yarn or drawn yarn made of the dyeable polyolefin fiber used for false twisting can be appropriately selected according to the application and required characteristics, but is preferably in the range of 30 to 200%. If the elongation is 30% or more, it is possible to suppress the occurrence of fuzz of false twisted yarn made of dyeable polyolefin fiber and the occurrence of yarn breakage during false twisting. If the elongation is 200% or less, False twisting can be performed stably. From these viewpoints, the elongation of the undrawn yarn or drawn yarn is more preferably 35 to 150%, and further preferably 40 to 100%.
- FR feed roller
- 1DR (1 draw roller) heater As an apparatus used for false twisting, FR (feed roller), 1DR (1 draw roller) heater, cooling plate, false twisting apparatus, 2DR (2 draw roller), 3DR (3 draw roller), entanglement nozzle, 4DR ( 4 draw roller), and a false twisting device provided with a winder.
- the processing magnification between FR-1DR can be selected according to the elongation of the fiber used for processing and the elongation of the false twisted yarn made of dyeable polyolefin fiber, but the range is 1.0 to 2.0 times. preferable.
- the heater can be contact type or non-contact type.
- the temperature of the heater can be appropriately selected according to the expansion / contraction recovery rate of the false twisted yarn made of dyeable polyolefin fiber and the hot water dimensional change rate, but from the viewpoint of increasing the expansion / contraction recovery rate, in the case of contact type 90 degreeC or more is preferable, 100 degreeC or more is more preferable, and 110 degreeC or more is further more preferable.
- the non-contact type 150 ° C. or higher is preferable, 200 ° C. or higher is more preferable, and 250 ° C. or higher is more preferable.
- the upper limit of the heater temperature may be a temperature at which the undrawn yarn or drawn yarn to be used is not fused in the heater.
- the false twisting device is preferably a friction false twist type, and examples include a friction disk type and a belt nip type.
- it is a friction disk type, and it is preferable that all the disk materials are made of ceramics so that false twisting can be stably performed even during long-time operation.
- the magnification between 2DR-3DR and between 3DR-4DR can be set as appropriate according to the expansion / contraction recovery rate and hot water dimensional change rate of false twisted yarn made of dyeable polyolefin fiber, but usually 0.9 to 1.0 It is preferable to double. Between 3DR and 4DR, in order to improve the high-order passability of the false twisted yarn, entanglement imparting by an entanglement nozzle or refueling by an oil supply guide may be performed.
- the present invention it may be dyed in any state of a fiber or a fiber structure as necessary.
- a disperse dye can be suitably employed as the dye.
- the sea component polyolefin (A) constituting the false twisted yarn made of dyeable polyolefin fibers is hardly dyed, but the polyester (B) copolymerized with the island component cyclohexanedicarboxylic acid is dyed. By this, it becomes possible to obtain a fiber and a fiber structure having vivid and deep color developability.
- the dyeing method in the present invention is not particularly limited, and a cheese dyeing machine, a liquid dyeing machine, a drum dyeing machine, a beam dyeing machine, a jigger, a high-pressure jigger and the like can be suitably employed according to a known method.
- the dye concentration and dyeing temperature there is no particular limitation on the dye concentration and dyeing temperature, and a known method can be suitably employed. If necessary, scouring may be performed before the dyeing process, or reduction cleaning may be performed after the dyeing process.
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention and the fiber structure comprising the same are obtained by imparting a vivid and deep coloring property to a polyolefin fiber having excellent lightness. Therefore, in addition to applications where conventional polyolefin fibers are used, the present invention can be applied to apparel applications and applications that require lightness and color development.
- Conventional polyolefin fiber uses include tile carpets, household rugs, interior mats such as automobile mats, bedclothes such as padding for futons, pillow filling materials, ropes, curing nets, filter cloths, and narrow widths. Examples include, but are not limited to, tapes, braids, and chair materials.
- general clothing such as women's clothing, men's clothing, lining, underwear, down, vest, inner, outerwear, sports clothing such as windbreaker, outdoor wear, ski wear, golf wear, swimwear, etc.
- Futon side, futon cover, blanket, blanket side, blanket cover, pillowcase, bedclothes such as sheets, table cloth, curtains, interiors, belts, bags, sewing threads, sleeping bags, tents, etc.
- bedclothes such as sheets, table cloth, curtains, interiors, belts, bags, sewing threads, sleeping bags, tents, etc.
- DSC differential scanning calorimeter
- the melting peak temperature was calculated from the melting peak observed during the second temperature raising process. The measurement was performed 3 times per sample, and the average value was taken as the melting peak temperature. When a plurality of melting peaks were observed, the melting peak temperature was calculated from the melting peak on the lowest temperature side.
- Aromatic ring concentration For the polymer of the sea component (A) or island component (B), using the copolymerization rate (mol%) of the copolymer component having an aromatic ring and the molecular weight (g / mol) of the repeating unit, The aromatic ring concentration (mol / kg) was calculated.
- Aromatic ring concentration (mol / kg) copolymerization ratio of copolymer component having aromatic ring (mol%) ⁇ 10 ⁇ molecular weight of repeating unit (g / mol).
- Refractive index A press film was prepared using 1 g of a polymer of sea component (A) or island component (B), which had been vacuum-dried in advance, as a sample, using a 15 TON four-column single-acting ascending press manufactured by Gonno Hydraulic Co., Ltd.
- the sample and a spacer having a thickness of 50 ⁇ m were inserted into a press machine while sandwiched between infusible polyimide films (“Kapton” (registered trademark) 200H manufactured by Toray DuPont), melted at 230 ° C. for 2 minutes, and then 2 MPa. Was pressed at a pressure of 1 mm for 1 minute, quickly removed from the press and rapidly cooled in water at 20 ° C.
- the sea component (A) polymer of Example 29 and the island component (B) polymer of Comparative Example 2 were melted at a temperature of 270 ° C., and the island components (B ) Was changed to a melting temperature of 250 ° C. to produce a press film.
- Fineness (dtex) weight of fiber 100 m (g) ⁇ 100.
- F. Strength and elongation The strength and elongation were calculated according to JIS L1013: 2010 (chemical fiber filament yarn test method) 8.5.1 using the false twisted yarn obtained in the examples as a sample. In an environment of a temperature of 20 ° C. and a humidity of 65% RH, a tensile test was performed using an orientec Tensilon UTM-III-100 model under the conditions of an initial sample length of 20 cm and a tensile speed of 20 cm / min.
- the strength (cN / dtex) is calculated by dividing the stress (cN) at the point indicating the maximum load by the fineness (dtex), and using the elongation (L1) and the initial sample length (L0) at the point indicating the maximum load, The elongation (%) was calculated by the formula. The measurement was carried out 10 times per sample, and the average values were taken as the strength and elongation.
- Elongation (%) ⁇ (L1-L0) / L0 ⁇ ⁇ 100.
- Fineness fluctuation value U% (hi) The fineness variation value U% (hi) was obtained by using the false twisted yarn obtained in the example as a sample and using a Worcester tester 4-CX manufactured by Zerbegger Wooster, measuring speed 200 m / min, measuring time 2.5 minutes, U% (half inert) was measured under the conditions of a measurement fiber length of 500 m and a twist number of 12000 / m (S twist). The measurement was performed five times for each sample, and the average value was defined as the fineness variation value U% (hi).
- the fiber cross section of the single yarn was observed using a plurality of single yarns manufactured under the same conditions as samples.
- the highest magnification at which the entire image of the single yarn could be observed was selected.
- the dispersion diameter of the island component existing in the fiber cross section of each single yarn was measured, and the average value of the dispersion diameters of a total of 100 island components was defined as the dispersion diameter of the island component.
- the specific gravity was calculated according to the floatation / sink method of JIS L1013: 2010 (chemical fiber filament yarn test method) 8.17 using the false twisted yarn obtained in the example as a sample.
- a specific gravity measurement liquid was prepared using water as a heavy liquid and ethyl alcohol as a light liquid. In a constant temperature bath at a temperature of 20 ⁇ 0.1 ° C., about 0.1 g of the sample was allowed to stand in the specific gravity measurement liquid for 30 minutes, and then the sample was observed for its floating state.
- the sample After adding heavy liquid or light liquid according to the state of floatation, the sample was allowed to stand for 30 minutes, and after confirming that the sample was in the state of floatation and sedimentation, the specific gravity of the specific gravity measurement liquid was measured and the specific gravity of the sample was calculated. . In addition, the measurement was performed 5 times per sample and the average value was made into specific gravity.
- Expansion / contraction recovery rate (CR) (%) ⁇ (Kase length a ⁇ Kase length b ⁇ / Kase length a) ⁇ 100.
- Hot water dimensional change rate The hot water dimensional change rate was evaluated according to JIS L1013 (2010) 8.18.1 (hot water dimensional change rate: skein dimensional change rate (Method A)).
- the false twisted yarn was rewound at a speed of 120 times / minute using a load of 8.82 mN ⁇ fineness (dtex) ⁇ 10 using an electric measuring scale made of INTEC having a circumference of 1.0 m.
- a load of 8.82 mN ⁇ fineness (dtex) ⁇ 10 ⁇ 20 was applied to this casserole, and the length of the casserole was measured to obtain an initial length L1.
- the length of the casserole was measured over time to obtain a post-treatment length L2.
- the initial length L1 and the post-treatment length L2 were measured 10 times while changing the sample, the hot water dimensional change rate was calculated from the following formula, and the average value was taken.
- Hot water dimensional change rate (%) ⁇ (initial length L1 ⁇ processed length L2) / initial length L1 ⁇ ⁇ 100.
- L. L * value Using the false twisted yarn obtained in the example as a sample, approximately 2 g of cylindrical knitting is produced using a circular knitting machine NCR-BL (cylinder diameter 3 inch half (8.9 cm), 27 gauge) manufactured by Eikoh Industries. After scouring at 80 ° C. for 20 minutes in an aqueous solution containing 1.5 g / L sodium carbonate and 0.5 g / L surfactant GRANUP US-20 manufactured by Meisei Chemical Industry Co., Ltd., washed with running water for 30 minutes and then washed at 60 ° C. For 60 minutes in a hot air dryer. After scouring, the tube knitting was set at 135 ° C.
- Tube dyeing after dyeing is carried out in an aqueous solution containing 2 g / L of sodium hydroxide, 2 g / L of sodium dithionite and 0.5 g / L of a surfactant GRANUP US-20 manufactured by Meisei Chemical Co., Ltd., with a bath ratio of 1: 100, After reducing and washing at 80 ° C. for 20 minutes, it was washed with running water for 30 minutes and dried in a hot air dryer at 60 ° C. for 60 minutes. After the reduction cleaning, the tubular knitting was dry-heat set at 135 ° C. for 1 minute, and finish setting was performed.
- the L * value was measured by using a cylindrical knitting after finishing set as a sample and using a Minolta spectrocolorimeter CM-3700d model with a D65 light source, a viewing angle of 10 °, and an optical condition of SCE (regular reflected light removal method). In addition, the measurement was performed 3 times per sample, and the average value was defined as L * value.
- the light fastness was evaluated according to JIS L0843: 2006 (Test method for fastness to dyeing with respect to xenon arc lamp light) A method. Using the cylindrical knitting after finishing set manufactured in L above as a sample, Xenon arc lamp irradiation is performed using a Xenon weather meter X25 manufactured by Suga Test Instruments, and the degree of color fading of the sample is specified in JIS L0804: 2004. The light fastness was evaluated by classifying using a scale.
- washing fastness was evaluated according to JIS L0844: 2011 (Testing method for fastness to dyeing for washing) A-2. Using the round knitting after finishing set made in L above as a sample, a sample together with the attached white cloth (cotton 3-1 and nylon 7-1) specified in JIS L0803: 2011 using a round meter manufactured by Daiei Kagaku Seisakusho After the laundering treatment, the degree of color fastness of washing was evaluated by classifying the degree of color fading of the sample using the gray scale for color fading defined in JIS L0804: 2004.
- Friction fastness The friction fastness was evaluated according to the drying test of JIS L0849: 2013 (Dye Fastness Test Method for Friction) 9.2 Friction Tester II Type (Gakushin Type). Using the tube knitting after finishing set produced in L above as a sample, using a white cotton cloth (Cotton 3-1) specified in JIS L0803: 2011 using a Gakushin type friction tester RT-200 manufactured by Daiei Kagaku Seiki After the rubbing treatment, the degree of contamination of the white cotton fabric was evaluated using a gray scale for contamination specified in JIS L0805: 2005 to evaluate the friction fastness.
- the specific gravity of the fiber measured by said I was evaluated in four steps, S, A, B, and C, as a lightness index. Evaluation shows that S is the best, it gets worse in the order of A and B, and C is the worst.
- the specific gravity of the fiber is “less than 0.95” as S, “0.95 or more and less than 1.0” is A, “1.0 or more and less than 1.1” is B, and “1.1 or more” is C. A of 0.95 or more and less than 1.0 was regarded as acceptable.
- L * value measured in the above L was used as an index of color developability, and was evaluated in four stages of S, A, B, and C. The smaller the value of L * value, the better the color developability. Evaluation shows that S is the best, it gets worse in the order of A and B, and C is the worst.
- L * The value is "less than 35" as S, "35 or more and less than 40" is A, "40 or more and less than 60" is B, "60 or more” is C, and "A or more” is "35 or more and less than 40". .
- Melt viscosity ratio melt viscosity A of sea component / melt viscosity B of island component.
- T.A Maximum temperature of sample in oxidation exothermic test The test was performed in accordance with the oxidation exothermic test method (acceleration method) of polypropylene fiber by the Japan Chemical Fiber Association. Using the false twisted yarn obtained in the example as a sample, a circular knitting machine NCR-BL manufactured by Eiko Sangyo Co., Ltd. (bottle diameter: 3 inches and a half (8.9 cm), 27 gauge) was used to produce a cylindrical knitting, and washing and tumbler Pretreatment by drying was performed.
- NCR-BL manufactured by Eiko Sangyo Co., Ltd.
- Laundry is performed in accordance with JIS L0217: 1995 (labeling and handling methods for textile products) 103, Kao Attack as detergent, Kao Hiter (2.3 ml / L) as bleaching agent, 10 After washing twice, it was dried with a tumbler dryer at 60 ° C. for 30 minutes. A set of 10 washings and 1 tumble drying was repeated for a total of 10 sets for pretreatment.
- the cylindrical container filled with the pre-treated cylindrical braid was placed in a constant temperature dryer set at 150 ° C., and the temperature of the thermocouple installed in the center of the cylindrical container (corresponding to the sample temperature) reached 150 ° C.
- a time change of 100 hours was recorded with a time of 0 minute, and the maximum temperature of the sample was measured. The measurement was performed twice for each sample, and the average value was taken as the maximum temperature of the sample in the oxidation heat generation test.
- Example 1 95.2 parts by weight of polypropylene (PP) (Taiwan Plastics 1352F, melting peak temperature 159 ° C., melt viscosity 1030 poise), 4.8 parts by weight of polyethylene terephthalate copolymerized with 30 mol% of 1,4-cyclohexanedicarboxylic acid, As an antioxidant, 1,3,5-tris [[4- (1,1-dimethylethyl) -3-hydroxy-2,6-dimethylphenyl] methyl] -1,3,5-, which is a phenol compound, is used.
- PP polypropylene
- PP Terephthalate copolymerized with 30 mol% of 1,4-cyclohexanedicarboxylic acid
- the strand discharged from the biaxial extruder was water-cooled and then cut into a length of about 5 mm by a pelletizer to obtain a pellet.
- the obtained pellets were vacuum-dried at 95 ° C. for 12 hours, then supplied to an extruder type melt spinning machine to be melted, and a spinneret (discharge hole diameter 0.23 mm, discharge temperature 23.1 g / min)
- a spun yarn was obtained by discharging from a discharge hole length of 0.30 mm, a hole number of 36, and a round hole.
- the spun yarn is cooled by cooling air with a wind temperature of 20 ° C.
- the drawn yarn is FR (feed roller), 1DR (1 draw roller), heater, cooling plate, false twisting device, 2DR (2 draw roller), 3DR (3 draw roller), entanglement nozzle, 4DR (4 draw roller)
- false twisting was performed with a drawing false twisting device equipped with a winder to obtain false twisted yarn made of dyeable polyolefin fiber.
- the conditions for drawing false twisting are as follows.
- FR speed 350 m / min, processing magnification between FR-1DR 1.05 times, hot plate type contact heater (length 110 mm): 145 ° C., cooling plate length: 65 mm, friction disk type friction false twisting device, 2DR-3DR magnification: 1.0 times, 3DR-4DR magnification: 0.98 times, 4DR-winder magnification: 0.94 times, and entanglement by the entanglement nozzle was applied between 3DR-4DR.
- Table 1 shows the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- Table 12 also describes the product name and addition amount of the antioxidant.
- the specific gravity of the false twisted yarn comprising the dyeable polyolefin fiber obtained was 0.93, and was excellent in lightness.
- cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate with a low refractive index and high color developability is finely dispersed as an island component, so a vivid and deep color is obtained. The color developability was acceptable.
- the light fastness, the fastness to washing, and the fastness to rubbing were all good, the entire fabric was dyed uniformly, and the leveling property was also good. Further, since the expansion / contraction recovery rate was 30% and the hot water dimensional change rate was 3.5%, the bulkiness and flexibility were good, and a fabric having a smooth texture and a good texture was obtained. In addition, the maximum sample temperature in the oxidation heat generation test was 150 ° C., and the oxidation heat generation was suppressed.
- Examples 2 to 7 A false twisted yarn was produced in the same manner as in Example 1 except that polyester (B) having a different melt viscosity was used. The fiber characteristics and evaluation results of the obtained false twisted yarn are shown in Tables 1 and 2.
- Comparative Example 1 The drawn yarn obtained in Example 1 was evaluated for fiber properties and fabric properties without false twisting.
- Comparative Example 1 the fiber characteristics and fabric characteristics listed in Table 2 correspond to the evaluation results of drawn yarn.
- Table 2 shows the fiber characteristics and evaluation results of the obtained drawn yarn.
- the fastness to dyeing, lightness, color development, leveling, etc. were good, but bulkiness was not obtained because it was not false twisted yarn.
- the touch is smooth, and a smooth tactile sensation such as a fabric made of false twisted yarn was not obtained.
- Example 8 to 14 A false twisted yarn was produced in the same manner as in Example 1 except that the copolymerization rate of cyclohexanedicarboxylic acid was changed as shown in Tables 3 and 4.
- Tables 3 and 4 show the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- the sea component is polypropylene (PP) 95.2 parts by weight, the island component polyethylene terephthalate (PET) (Toray T701T, melting peak temperature 257 ° C) is 4.8 parts by weight, the kneading temperature is 280 ° C, A false twisted yarn was produced in the same manner as in Example 1 except that the spinning temperature was changed to 285 ° C.
- PP polypropylene
- PET island component polyethylene terephthalate
- PET Toray T701T, melting peak temperature 257 ° C
- the kneading temperature is 280 ° C
- a false twisted yarn was produced in the same manner as in Example 1 except that the spinning temperature was changed to 285 ° C.
- Table 4 shows the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- polyethylene terephthalate an island component
- polyethylene terephthalate has high crystallinity, so the exhaustion of the dye is insufficient, and vivid and deep color development cannot be obtained. Met.
- the fineness fluctuation value U% (hi) was high and the uniformity in the fiber longitudinal direction was insufficient, the leveling property was also inferior.
- Example 3 A false twisted yarn was prepared in the same manner as in Example 1 except that 100 parts by weight of polypropylene was used and 1,4-cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate was not used.
- Table 5 shows the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained. Since polypropylene is hardly dyed with disperse dyes, the false twisted yarn of Comparative Example 3 was extremely inferior in color development.
- Example 15 to 20 (Comparative Example 4) A false twisted yarn was prepared in the same manner as in Example 1 except that the composite ratio of polypropylene and cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate was changed as shown in Tables 5 and 6.
- Tables 5 and 6 show the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- Comparative Example 4 since the composite ratio of cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate was high, the sea component was cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate and the island component was polypropylene, and the specific gravity was high and the weight was inferior. In addition, although the color developability was good, the island component polypropylene was hardly dyed, so that the leveling was poor.
- the sea component is cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate, it is difficult to heat set the fiber, the expansion / contraction recovery rate is low, and the hot water dimensional change rate is high, resulting in poor bulkiness and flexibility. there were.
- Example 21 was maleic anhydride-modified polypropylene (POLYBOND 3200 manufactured by addvant), Maleic anhydride-modified styrene-ethylene-butylene-styrene copolymer (Tuftec M1913 manufactured by Asahi Kasei Chemicals) in Example 22, and Example 23 An amine-modified styrene-ethylene-butylene-styrene copolymer (Dynalon 8660P manufactured by JSR) was used.
- Examples 24 to 29 show the composite ratios of polypropylene, cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate, and compatibilizer as shown in Table 7.
- a false twisted yarn was produced in the same manner as in Example 1 except that it was as shown in FIGS. Tables 7, 8, and 9 show the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarns obtained.
- Example 30 95.2 parts by weight of polymethylpentene (PMP) (DX820, Mitsui Chemicals, melting peak temperature 232 ° C., melt viscosity 1010 poise), 4.8 parts by weight of polyethylene terephthalate copolymerized with 30 mol% of 1,4-cyclohexanedicarboxylic acid The mixture was added and kneaded at a kneading temperature of 260 ° C. using a biaxial extruder. The strand discharged from the biaxial extruder was water-cooled and then cut into a length of about 5 mm by a pelletizer to obtain a pellet. The obtained pellets were vacuum-dried at 95 ° C.
- PMP polymethylpentene
- a spun yarn was obtained by discharging from a discharge hole length of 0.30 mm, a hole number of 36, and a round hole.
- the spun yarn is cooled by cooling air with an air temperature of 20 ° C. and an air speed of 20 m / min, applied with an oil agent by a lubricating device, converged, and taken up by a first godet roller rotating at 3000 m / min.
- An undrawn yarn of 69 dtex-36 filament, strength 2.0 cN / dtex, and elongation 43% was obtained by winding with a winder through a second godet roller rotating at the same speed as the dead roller.
- the undrawn yarn is FR (feed roller), 1DR (1 draw roller), heater, cooling plate, false twisting device, 2DR (2 draw roller), 3DR (3 draw roller), entanglement nozzle, 4DR (4 draw roller) )
- FR feed roller
- 1DR (1 draw roller) 1 draw roller
- heater heating plate
- false twisting device 2DR (2 draw roller)
- 3DR 3 draw roller
- entanglement nozzle 4DR (4 draw roller)
- false twisting with a drawing false twisting device equipped with a winder to obtain false twisted yarn made of dyeable polyolefin fiber.
- FR speed 300 m / min
- processing ratio between FR-1DR 1.05 times
- hot plate type contact heater (length 110 mm): 180 ° C.
- cooling plate length 65 mm
- friction disk type friction false twisting device 2DR-3DR magnification: 1.0 times
- 3DR-4DR magnification 0.98 times
- 4DR-winder magnification 0.98 times
- entanglement by the entanglement nozzle was applied between 3DR-4DR.
- Table 9 shows the evaluation results of the fiber properties and fabric properties of the obtained false twisted yarn.
- Example 5 With reference to Example 1 described in JP-T-2008-533315, a composite ratio of 95. 5 is obtained using polyethylene terephthalate copolymerized with 31 mol% of polypropylene and cyclohexanedimethanol, and maleic anhydride-modified polypropylene (POLYBOND 3200 manufactured by addvant). A false twisted yarn was produced in the same manner as in Example 1 except that the ratio was changed to 0 / 4.8 / 0.2.
- Table 10 shows the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- the bulkiness, flexibility, and leveling property were acceptable levels, but the cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate was not used. Therefore, the refractive index of the island component was increased, and the color developability was unacceptable.
- Table 10 shows the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- the bulkiness, flexibility, and leveling property were acceptable levels, but because the cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate was not used, the refractive index of the island component was increased, and the color development was at an unacceptable level.
- Table 11 shows the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- the bulkiness and flexibility were acceptable levels, the island component cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate was dyed, but the sea component polypropylene covering the fiber surface layer was hardly dyed, so it was vivid. In this case, a deep color was not obtained, and the color developability was at a reject level. Moreover, the whole fabric was not dyed uniformly and the leveling property was extremely inferior.
- the sea component corresponds to the sheath component
- the island component corresponds to the core component.
- Table 11 shows the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- Comparative Example 8 the lightness, bulkiness, and flexibility were acceptable levels, but the core component cyclohexanedicarboxylic acid copolymerized polyethylene terephthalate was dyed, but the sheath component polypropylene covering the fiber surface layer was Since it was hardly dyed, vivid and deep color development was not obtained, and the color developability was extremely inferior. Moreover, the whole fabric was not dyed uniformly and the leveling property was extremely inferior.
- Example 31 the phenolic compound was changed to pentaerythritol-tetrakis (3- (3,5-di-t-butyl-4-hydroxyphenol) propionate) (Irganox 1010 from BASF) as an antioxidant.
- Irganox 1010 from BASF
- Example 32 3,9-bis [1,1-dimethyl-2- [ ⁇ - (3-tert-butyl-4-hydroxy-5-methylphenyl) propionyloxy] was used as an antioxidant as an antioxidant.
- a false twisted yarn was prepared in the same manner as in Example 1 except that it was changed to [Ethyl] -2,4,8,10-tetraoxaspiro [5,5] -undecane (Sumitomo Chemical Summarizer GA-80).
- Example 33 the phosphorus compound as an antioxidant was 3,9-bis (2,6-di-t-butyl-4-methylphenoxy) -2,4,8,10-tetraoxa-3,9-
- a false twisted yarn was produced in the same manner as in Example 1 except that it was changed to diphosphaspiro [5,5] undecane (ADEKA STAB PEP-36 manufactured by ADEKA).
- Example 34 as an antioxidant, a hindered amine compound was added as NN′—N ′′ —N ′ ′′-tetrakis (4,6-bis (butyl- (N-methyl-2,2,6,6). -Tetramethylpiperidin-4-yl) amino) triazin-2-yl) -4,7-diazadecane-1,10-diamine) (SABO, SABOSTAB UV119) A processed yarn was prepared.
- Example 35 as an antioxidant, a hindered amine compound was dibutylamine-1,3,5-triazine-N, N′-bis (2,2,6,6-tetramethyl-4-piperidyl) -1, False twisted yarn in the same manner as in Example 1 except that it was changed to a polycondensate of 6-hexamethylenediamine and N- (2,2,6,6-tetramethyl-4-piperidyl) butylamine (CHIMASSORB2020 manufactured by BASF) Was made.
- Example 36 as the antioxidant, the hindered amine compound was changed to bis [2,2,6,6-tetramethyl-1- (octyloxy) piperidin-4-yl] decanedioate (TinvinPA123 manufactured by BASF). Otherwise, false twisted yarn was produced in the same manner as in Example 1.
- Example 37 as an antioxidant, a hindered amine compound was used as an ester of 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol and 3,5,5-trimethylhexanoic acid (for example, manufactured by BASF). A false twisted yarn was produced in the same manner as in Example 1 except that it was changed to Tinuvin 249).
- Example 38 false twisted yarn was produced in the same manner as in Example 1 except that the antioxidant was not added.
- Tables 14 and 15 show the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- Example 38 since the antioxidant was not added, the maximum sample temperature in the oxidation heat generation test reached 167 ° C. (Table 13).
- Example 39 to 45 (Comparative Example 10) A false twisted yarn was produced in the same manner as in Example 1, except that the number of filaments and the fineness of the false twisted yarn were changed by changing the spinneret and the discharge amount.
- Tables 16 and 17 show the evaluation results of the fiber characteristics and fabric characteristics of the false twisted yarn obtained.
- Comparative Example 10 since the number of filaments was two, the expansion / contraction recovery rate (CR) was lowered and the bulkiness was poor.
- the false twisted yarn comprising the dyeable polyolefin fiber of the present invention is excellent in lightness and has a vivid and deep coloring property, and can be suitably used as a fiber structure. Therefore, in addition to the use in which the conventional polyolefin fiber is used, it can be applied to a use requiring lightness and color development property, particularly a clothing use.
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Abstract
Description
(1)伸縮復元率(CR) 10~40%
(2)熱水寸法変化率 0.0~7.0% 。
(2)熱水寸法変化率 0.0~7.0% 。
海成分(A)または島成分(B)のポリマーを試料とし、TAインスツルメント製示差走査熱量計(DSC)Q2000型を用いて、融解ピーク温度を測定した。始めに、窒素雰囲気下で試料約5mgを0℃から280℃まで昇温速度50℃/分で昇温後、280℃で5分間保持して試料の熱履歴を取り除いた。その後、280℃から0℃まで急冷した後、再度0℃から280℃まで昇温速度3℃/分、温度変調振幅±1℃、温度変調周期60秒で昇温し、TMDSC測定を行った。JIS K7121:1987(プラスチックの転移温度測定方法)9.1に準じて、2回目の昇温過程中に観測された融解ピークより融解ピーク温度を算出した。測定は1試料につき3回行い、その平均値を融解ピーク温度とした。なお、融解ピークが複数観測された場合には、最も低温側の融解ピークから融解ピーク温度を算出した。
海成分(A)または島成分(B)のポリマーについて、芳香環を有する共重合成分の共重合率(mol%)および繰り返し単位の分子量(g/mol)を用いて、下記式によって芳香環濃度(mol/kg)を算出した。
事前に真空乾燥した海成分(A)または島成分(B)のポリマー1gを試料とし、ゴンノ油圧機製作所製15TON 4本柱単動上昇式プレス機を用いて、プレスフィルムを作製した。試料および厚さ50μmのスペーサーを不融性のポリイミドフィルム(東レ・デュポン製“カプトン”(登録商標)200H)に挟んだ状態でプレス機へ挿入し、230℃で2分間溶融させた後、2MPaの圧力で1分間プレスし、プレス機から速やかに取り出して20℃の水中で急冷して、厚さ50μmのプレスフィルムを得た。続いて、JIS K0062:1992(化学製品の屈折率測定方法)6.に記載のフィルム試料の測定方法に準じて、プレスフィルムの屈折率を測定した。温度20℃、湿度65%RHの環境下において、エルマ製アッベ屈折計ER-1型、中間液としてモノブロモナフタレン(nD=1.66)、ガラス片としてテストピース(nD=1.74)を用いて、1試料につき3回の測定を行い、その平均値を屈折率とした。
可染性ポリオレフィン繊維からなる仮撚加工糸の原料として用いた海成分(A)、島成分(B)、相溶化剤(C)の合計を100重量部とし、複合比率として海成分(A)/島成分(B)/相溶化剤(C)[重量部]を算出した。
温度20℃、湿度65%RHの環境下において、INTEC製電動検尺機を用いて、実施例によって得られた仮撚加工糸100mをかせ取りした。得られたかせの重量を測定し、下記式を用いて繊度(dtex)を算出した。なお、測定は1試料につき5回行い、その平均値を繊度とした。
強度および伸度は、実施例によって得られた仮撚加工糸を試料とし、JIS L1013:2010(化学繊維フィラメント糸試験方法)8.5.1に準じて算出した。温度20℃、湿度65%RHの環境下において、オリエンテック社製テンシロンUTM-III-100型を用いて、初期試料長20cm、引張速度20cm/分の条件で引張試験を行った。最大荷重を示す点の応力(cN)を繊度(dtex)で除して強度(cN/dtex)を算出し、最大荷重を示す点の伸び(L1)と初期試料長(L0)を用いて下記式によって伸度(%)を算出した。なお、測定は1試料につき10回行い、その平均値を強度および伸度とした。
繊度変動値U%(hi)は、実施例によって得られた仮撚加工糸を試料とし、ツェルベガーウースター製ウースターテスター4-CXを用いて、測定速度200m/分、測定時間2.5分、測定繊維長500m、撚り数12000/m(S撚り)の条件で、U%(half inert)を測定した。なお、測定は1試料につき5回行い、その平均値を繊度変動値U%(hi)とした。
実施例によって得られた仮撚加工糸をエポキシ樹脂で包埋した後、LKB製ウルトラミクロトームLKB-2088を用いてエポキシ樹脂ごと、繊維軸に対して垂直方向に繊維を切断し、厚さ約100nmの超薄切片を得た。得られた超薄切片を固体の四酸化ルテニウムの気相中に常温で約4時間保持して染色した後、染色された面をウルトラミクロトームで切断し、四酸化ルテニウムで染色された超薄切片を作製した。染色された超薄切片について、日立製透過型電子顕微鏡(TEM)H-7100FA型を用いて、加速電圧100kVの条件で繊維軸に対して垂直な断面、すなわち繊維横断面を観察し、繊維横断面の顕微鏡写真を撮影した。観察は300倍、500倍、1000倍、3000倍、5000倍、10000倍、30000倍、50000倍の各倍率で行い、顕微鏡写真を撮影する際には100個以上の島成分が観察できる最も低い倍率を選択した。撮影された写真について、同一の写真から無作為に抽出した100個の島成分の直径を画像処理ソフト(三谷商事製WINROOF)で測定し、その平均値を島成分の分散径(nm)とした。繊維横断面に存在する島成分は必ずしも真円とは限らないため、真円ではない場合には外接円の直径を島成分の分散径として採用した。
比重は、実施例によって得られた仮撚加工糸を試料とし、JIS L1013:2010(化学繊維フィラメント糸試験方法)8.17の浮沈法に準じて算出した。重液には水を用い、軽液にはエチルアルコールを用いて比重測定液を調製した。温度20±0.1℃の恒温槽中において、試料約0.1gを比重測定液に30分間放置した後、試料の浮沈状態を観察した。浮沈状態に応じて重液または軽液を添加して、さらに30分間放置した後に試料が浮沈平衡状態となったのを確認して、比重測定液の比重を測定し、試料の比重を算出した。なお、測定は1試料につき5回行い、その平均値を比重とした。
伸縮復元率(CR)の評価は、JIS L1013(2010)6(試料の採取及び準備)、8.12(伸縮復元率)に準じて行った。仮撚加工糸を0.176mN×繊度(dtex)×10の荷重をかけながら、カセ長40cm、10回巻きのカセにした後、このカセに0.176mN×20×繊度(dtex)×10の初荷重をかけて、ポリオレフィン繊維は70℃(ポリエステルの場合は90℃)の熱水で20分間熱水処理した後、ろ紙で脱水した後、12時間以上自然乾燥した。その後、上記の初荷重をかけた状態で20℃(18~22℃の範囲)の水中に沈め、8.82mN×20×繊度(dtex)×10の標準荷重を追加でかけて2分間放置した後、放置後のカセの長さを測定し、カセ長aとした。その後、水中で上記の標準荷重を外し、初荷重のみがかかっている状態で2分間放置する。放置後のカセの長さを測定し、カセ長bとした。カセ長a、カセ長bはサンプルを変更して5回測定行い、次式より伸縮復元率(CR)を算出し、平均値をとった。
熱水寸法変化率の評価は、JIS L1013(2010)8.18.1(熱水寸法変化率:かせ寸法変化率(A法))に準じて行った。仮撚加工糸を周長1.0mのINTEC製電動検尺機を用いて8.82mN×繊度(dtex)×10の荷重を用いて、120回/分の速度で巻き返した。20回巻きのカセを作った後、このカセに8.82mN×繊度(dtex)×10×20の荷重をかけてカセの長さを測定し、初期長L1とした。荷重を外した後、90℃の熱水中で30分間熱処理し、ろ紙で脱水した後、水平状態で8時間以上自然乾燥した後、8.82mN×繊度(dtex)×10×20の荷重をかけてカセの長さを測定し、処理後長L2とした。初期長L1、処理後長L2はサンプルを変更して10回測定を行い、次式より熱水寸法変化率を算出し、平均値をとった。
実施例によって得られた仮撚加工糸を試料とし、英光産業製丸編機NCR-BL(釜径3インチ半(8.9cm)、27ゲージ)を用いて筒編み約2gを作製した後、炭酸ナトリウム1.5g/L、明成化学工業製界面活性剤グランアップUS-20 0.5g/Lを含む水溶液中、80℃で20分間精練後、流水で30分水洗し、60℃の熱風乾燥機内で60分間乾燥した。精練後の筒編みを135℃で1分間乾熱セットし、乾熱セット後の筒編みに対して、分散染料として日本化薬製Kayalon Polyester Blue UT-YAを1.3重量%加え、pHを5.0に調整した染色液中、浴比1:100、130℃で45分間染色後、流水で30分水洗し、60℃の熱風乾燥機内で60分間乾燥した。染色後の筒編みを、水酸化ナトリウム2g/L、亜ジチオン酸ナトリウム2g/L、明成化学工業製界面活性剤グランアップUS-20 0.5g/Lを含む水溶液中、浴比1:100、80℃で20分間還元洗浄後、流水で30分水洗し、60℃の熱風乾燥機内で60分間乾燥した。還元洗浄後の筒編みを135℃で1分間乾熱セットし、仕上げセットを行った。仕上げセット後の筒編みを試料とし、ミノルタ製分光測色計CM-3700d型を用いてD65光源、視野角度10°、光学条件をSCE(正反射光除去法)としてL*値を測定した。なお、測定は1試料につき3回行い、その平均値をL*値とした。
耐光堅牢度の評価は、JIS L0843:2006(キセノンアーク灯光に対する染色堅ろう度試験方法)A法に準じて行った。上記Lで作製した仕上げセット後の筒編みを試料として、スガ試験機製キセノンウェザーメーターX25を用いてキセノンアーク灯光照射を行い、試料の変退色の度合いをJIS L0804:2004に規定の変退色用グレースケールを用いて級判定することによって、耐光堅牢度を評価した。
洗濯堅牢度の評価は、JIS L0844:2011(洗濯に対する染色堅ろう度試験方法)A-2号に準じて行った。上記Lで作製した仕上げセット後の筒編みを試料として、大栄科学製作所製ラウンダメーターを用いて、JIS L0803:2011に規定の添付白布(綿3-1号、ナイロン7-1号)とともに試料を洗濯処理した後、試料の変退色の度合いをJIS L0804:2004に規定の変退色用グレースケールを用いて級判定することによって、洗濯堅牢度を評価した。
摩擦堅牢度の評価は、JIS L0849:2013(摩擦に対する染色堅ろう度試験方法)9.2 摩擦試験機II形(学振形)法の乾燥試験に準じて行った。上記Lで作製した仕上げセット後の筒編みを試料として、大栄科学精機製学振型摩擦試験機RT-200を用いて、JIS L0803:2011に規定の白綿布(綿3-1号)で試料へ摩擦処理を施した後、白綿布の汚染の度合いをJIS L0805:2005に規定の汚染用グレースケールを用いて級判定することによって、摩擦堅牢度を評価した。
実施例によって得られた仮撚加工糸について、上記Iで測定した繊維の比重を軽量性の指標として、S、A、B、Cの4段階で評価した。評価は、Sが最も良く、A、Bの順に悪くなり、Cが最も劣ることを示す。繊維の比重が「0.95未満」をS、「0.95以上1.0未満」をA、「1.0以上1.1未満」をB、「1.1以上」をCとし、「0.95以上1.0未満」のA以上を合格とした。
上記Lで測定したL*値を発色性の指標として、S、A、B、Cの4段階で評価した。L*値は数値が小さいほど、発色性に優れるものである。評価は、Sが最も良く、A、Bの順に悪くなり、Cが最も劣ることを示す。L*値が「35未満」をS、「35以上40未満」をA、「40以上60未満」をB、「60以上」をCとし、「35以上40未満」のA以上を合格とした。
上記Lで作製した仕上げセット後の筒編みについて、インナー用途を想定し、5年以上の判定経験を有する検査員5名の合議によってS、A、B、Cの4段階で評価した。評価は、Sが最も良く、A、Bの順に悪くなり、Cが最も劣ることを示す。
A:「ほぼ均一に染色されており、ほとんど染め斑が認められない」
B:「ほとんど均一に染色されておらず、うっすらと染め斑が認められる」
C:「均一に染色されておらず、はっきりと染め斑が認められる」 。
A:「筒編みの厚み、ボリューム感が概ね十分であり、嵩高性に優れる」
B:「筒編みの厚み、ボリューム感がほとんどなく、嵩高性に劣る」
C:「筒編みの厚み、ボリューム感がなく、嵩高性に極めて劣る」 。
A:「筒編みを折り曲げた際の柔らかさが概ね十分であり、柔軟性に優れる」
B:「筒編みを折り曲げた際の柔らかさがほとんどなく、柔軟性に劣る」
C:「筒編みを折り曲げた際の柔らかさがなく、柔軟性に極めて劣る」 。
ポリマー20gを含水率0.1%以下に真空乾燥した後、東洋精機製作所製キャピログラフを用いて、孔長40mm、孔径1mmの単孔口金を用いて、せん断速度243.2毎秒の条件で溶融粘度を測定した。キャピログラフのシリンダ温度は実施例における紡糸温度(250℃~290℃)と同じ温度とし、窒素雰囲気で満たされたシリンダ内でポリマーを5分間溶融貯留した後に溶融粘度を測定した。溶融粘度の測定はサンプルを変えて5回行い、平均値を採用した。海成分ポリマーと島成分ポリマーの溶融粘度比率は、海成分ポリマーの溶融粘度Aと島成分ポリマーの溶融粘度Bをそれぞれ測定した後、下記の式より算出した。
日本化学繊維協会によるポリプロピレン繊維の酸化発熱試験方法(加速法)に準じて行った。実施例によって得られた仮撚加工糸を試料とし、英光産業製丸編機NCR-BL(釜径3インチ半(8.9cm)、27ゲージ)を用いて筒編みを作製し、洗濯およびタンブラー乾燥による前処理を行った。洗濯は、JIS L0217:1995(繊維製品の取扱いに関する表示記号及びその表示方法)103法に準じて行い、洗剤として花王製アタック、漂白剤として花王製ハイター(2.3ml/L)を加え、10回洗濯後に60℃のタンブラー乾燥機で30分間乾燥した。洗濯10回とタンブラー乾燥1回を1セットとし、計10セット繰り返して前処理を行った。
ポリプロピレン(PP)(台湾プラスチックス製1352F、融解ピーク温度159℃、溶融粘度1030poise)を95.2重量部、1,4-シクロヘキサンジカルボン酸を30mol%共重合したポリエチレンテレフタレートを4.8重量部、酸化防止剤として、フェノール系化合物である1,3,5-トリス[[4-(1,1-ジメチルエチル)-3-ヒドロキシ-2,6-ジメチルフェニル]メチル]-1,3,5-トリアジン-2,4,6(1H,3H,5H)-トリオン(CYTEC製Cyanox1790)を0.05重量部、リン系化合物である亜リン酸トリス(2,4-ジ-t-ブチルフェニル)(BASF製Irgafos168)を0.05重量部、ヒンダードアミン系化合物であるビス(1-ウンデカノキシ-2,2,6,6-テトラメチルピペリジン-4-イル)カーボネート(ADEKA製アデカスタブLA-81)を0.6重量部添加して、二軸エクストルーダーを用いて混練温度230℃で混練を行った。二軸エクストルーダーより吐出されたストランドを水冷した後、ペレタイザーにて5mm長程度にカットして、ペレットを得た。得られたペレットを95℃で12時間真空乾燥した後、エクストルーダー型溶融紡糸機へ供給して溶融させ、紡糸温度250℃、吐出量23.1g/分で紡糸口金(吐出孔径0.23mm、吐出孔長0.30mm、孔数36、丸孔)から吐出させて紡出糸条を得た。この紡出糸条を風温20℃、風速25m/分の冷却風で冷却し、給油装置で油剤を付与して収束させ、1250m/分で回転する第1ゴデットローラーで引き取り、第1ゴデットローラーと同じ速度で回転する第2ゴデットローラーを介して、ワインダーで巻き取って185dtex-36fの未延伸糸を得た。得られた未延伸糸を第1ホットローラー温度30℃、第2ホットローラー温度30℃、第3ホットローラー温度130℃の条件で2段延伸とし、総延伸倍率2.7倍の条件で延伸して、69dtex-36フィラメント、強度4.4cN/dtex、伸度43%の延伸糸を得た。
溶融粘度が異なるポリエステル(B)を用いた他は、実施例1と同様に仮撚加工糸を作製した。得られた仮撚加工糸の繊維特性および評価結果を表1、2に示す。
実施例1で得られた延伸糸を仮撚加工せずに繊維特性および布帛特性を評価した。比較例1においては、表2に記載の繊維特性および布帛特性は、延伸糸の評価結果に相当する。
シクロヘキサンジカルボン酸の共重合率を表3、4に示すとおり変更した以外は、実施例1と同様に仮撚加工糸を作製した。
海成分としてポリプロピレン(PP)を95.2重量部、島成分としてポリエチレンテレフタレート(PET)(東レ製T701T、融解ピーク温度257℃)を4.8重量部の複合比率とし、混練温度を280℃、紡糸温度を285℃に変更した以外は、実施例1と同様に仮撚加工糸を作製した。
ポリプロピレンを100重量部とし、1,4-シクロヘキサンジカルボン酸共重合ポリエチレンテレフタレートを用いなかった以外は、実施例1と同様にして仮撚加工糸を作成した。
ポリプロピレン、シクロヘキサンジカルボン酸共重合ポリエチレンテレフタレートの複合比率を表5、6に示すとおり変更した以外は、実施例1と同様に仮撚加工糸を作製した。
相溶化剤として、実施例21は無水マレイン酸変性ポリプロピレン(addivant製POLYBOND3200)、実施例22では無水マレイン酸変性スチレン-エチレン-ブチレン-スチレン共重合体(旭化成ケミカルズ製タフテックM1913)、実施例23ではアミン変性スチレン-エチレン-ブチレン-スチレン共重合体(JSR製ダイナロン8660P)を用い、また実施例24~実施例29はポリプロピレン、シクロヘキサンジカルボン酸共重合ポリエチレンテレフタレート、相溶化剤の複合比率を表7、8、9に示すとおりとした以外は、実施例1と同様に仮撚加工糸を作製した。得られた仮撚加工糸の繊維特性および布帛特性の評価結果を表7、8、9に示す。
ポリメチルペンテン(PMP)(三井化学製DX820、融解ピーク温度232℃、溶融粘度1010poise)を95.2重量部、1,4-シクロヘキサンジカルボン酸を30mol%共重合したポリエチレンテレフタレートを4.8重量部添加して、二軸エクストルーダーを用いて混練温度260℃で混練を行った。二軸エクストルーダーより吐出されたストランドを水冷した後、ペレタイザーにて5mm長程度にカットして、ペレットを得た。得られたペレットを95℃で12時間真空乾燥した後、エクストルーダー型溶融紡糸機へ供給して溶融させ、紡糸温度290℃、吐出量20.6g/分で紡糸口金(吐出孔径0.23mm、吐出孔長0.30mm、孔数36、丸孔)から吐出させて紡出糸条を得た。この紡出糸条を風温20℃、風速20m/分の冷却風で冷却し、給油装置で油剤を付与して収束させ、3000m/分で回転する第1ゴデットローラーで引き取り、第1ゴデットローラーと同じ速度で回転する第2ゴデットローラーを介して、ワインダーで巻き取って69dtex-36フィラメント、強度2.0cN/dtex、伸度43%の未延伸糸を得た。
特表2008-533315号公報に記載の実施例1を参考に、ポリプロピレン、シクロヘキサンジメタノールを31mol%共重合したポリエチレンテレフタレート、無水マレイン酸変性ポリプロピレン(addivant製POLYBOND3200)を用いて、複合比率を95.0/4.8/0.2とした以外は、実施例1と同様に仮撚加工糸を作製した。すなわち、シクロヘキサンジカルボン酸共重合ポリエチレンテレフタレートの代わりにシクロヘキサンジメタノールを31mol%共重合したポリエチレンテレフタレートを用いている点が本発明の実施例1と大きく異なる。
特表2001-522947号公報に記載の実施例1を参考に、シクロヘキサンジメタノールを31mol%共重合したポリエチレンテレフタレートを、イソフタル酸を20mol%およびシクロヘキサンジメタノールを20mol%共重合したポリエチレンテレフタレートに変更した以外は、比較例5と同様に仮撚加工糸を作製した。すなわち、シクロヘキサンジカルボン酸共重合ポリエチレンテレフタレートの代わりにイソフタル酸を20mol%およびシクロヘキサンジメタノールを20mol%共重合したポリエチレンテレフタレートを用いている点が本発明の実施例1と大きく異なる。
酸化防止剤として、フェノール系化合物である1,3,5-トリス[[4-(1,1-ジメチルエチル)-3-ヒドロキシ-2,6-ジメチルフェニル]メチル]-1,3,5-トリアジン-2,4,6(1H,3H,5H)-トリオン(CYTEC製CYANOX1790)を0.05重量部、リン系化合物である亜リン酸トリス(2,4-ジ-t-ブチルフェニル)(BASF製Irgafos168)を0.05重量部、ヒンダードアミン系化合物であるビス(1-ウンデカノキシ-2,2,6,6-テトラメチルピペリジン-4-イル)カーボネート(ADEKA製アデカスタブLA-81)を0.6重量部を混練したポリプロピレンを海成分とし、島成分のシクロヘキサンジカルボン酸共重合ポリエチレンテレフタレートをプレッシャーメルター型複合紡糸機へ供給して別々に溶融させ、海島型複合用紡糸口金(吐出孔径0.18mm、吐出孔長0.23mm、島数32、孔数36、丸孔)から吐出させ、海成分と島成分の複合比率を表11に示すとおりとした以外は、実施例1と同様に仮撚加工糸を作製した。
酸化防止剤として、フェノール系化合物である1,3,5-トリス[[4-(1,1-ジメチルエチル)-3-ヒドロキシ-2,6-ジメチルフェニル]メチル]-1,3,5-トリアジン-2,4,6(1H,3H,5H)-トリオン(CYTEC製CYANOX1790)を0.05重量部、リン系化合物である亜リン酸トリス(2,4-ジ-t-ブチルフェニル)(BASF製Irgafos168)を0.05重量部、ヒンダードアミン系化合物であるビス(1-ウンデカノキシ-2,2,6,6-テトラメチルピペリジン-4-イル)カーボネート(ADEKA製アデカスタブLA-81)を0.6重量部を混練したポリプロピレンと、シクロヘキサンジカルボン酸共重合ポリエチレンテレフタレートをプレッシャーメルター型複合紡糸機へ供給して別々に溶融させ、芯鞘型複合用紡糸口金(吐出孔径0.18mm、吐出孔長0.23mm、孔数36、丸孔)から吐出させ、鞘成分と芯成分の複合比率を表11に示すとおりとした以外は、実施例1と同様に仮撚加工糸を作製した。なお、比較例8、9においては、海成分は鞘成分に相当し、島成分は芯成分に相当する。
表12、13に示す通りに酸化防止剤の種類と添加量を変更した他は、実施例1と同様に仮撚加工糸を作製した。具体的には下記の通りである。
紡糸口金と吐出量を変更することで、仮撚加工糸のフィラメント数と繊度を変更した他は、実施例1と同様にして仮撚加工糸を作製した。
Claims (3)
- ポリオレフィン(A)が海成分、シクロヘキサンジカルボン酸を共重合したポリエステル(B)が島成分である海島構造で、繊維横断面における島成分の分散径が30~1000nmであるポリマーアロイ繊維であって、該ポリマーアロイ繊維が3本以上からなり、下記(1)(2)の物性を有することを特徴とする可染性ポリオレフィン繊維からなる仮撚加工糸。
(1)伸縮復元率(CR) 10~40%
(2)熱水寸法変化率 0.0~7.0% - ポリエステル(B)が全ジカルボン酸成分に対し、シクロヘキサンジカルボン酸を10~50mol%共重合されていることを特徴とする請求項1記載の可染性ポリオレフィン繊維からなる仮撚加工糸。
- 相溶化剤(C)を含有し、かつポリオレフィン(A)、ポリエステル(B)、相溶化剤(C)の合計100重量部に対し、ポリエステル(B)を3.0~20.0重量部含有することを特徴とする請求項1または2に記載の可染性ポリオレフィン繊維からなる仮撚加工糸。
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