CN1818159A - Production of health-care fibre and health-care fibre - Google Patents
Production of health-care fibre and health-care fibre Download PDFInfo
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- CN1818159A CN1818159A CN 200610013252 CN200610013252A CN1818159A CN 1818159 A CN1818159 A CN 1818159A CN 200610013252 CN200610013252 CN 200610013252 CN 200610013252 A CN200610013252 A CN 200610013252A CN 1818159 A CN1818159 A CN 1818159A
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- IEKHISJGRIEHRE-UHFFFAOYSA-N 16-methylheptadecanoic acid;propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O IEKHISJGRIEHRE-UHFFFAOYSA-N 0.000 description 4
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Landscapes
- Multicomponent Fibers (AREA)
Abstract
本发明涉及一种保健纤维及其制造方法。该保健纤维具有皮芯结构，皮芯体积比为3∶7－7∶3；皮层料重量百分比配方为：皮层聚合物92.6－97.9％，粒径为0.05－1.0μm的珍珠蛋白粉料2－7％，偶联剂0.1－0.4％；芯层料重量百分比配方为：芯层聚合物88－99％、香料1－12％。该保健纤维的制造方法按所述配方和下述工艺进行：1.将珍珠蛋白粉在90～110℃下干燥3－5个小时；2.把皮层料均匀混合后，在180－270℃温度下，经双螺杆挤出造粒，制得皮层料；3.把芯层料均匀混合后，在150－230℃温度下，经双螺杆挤出造粒，制得芯层料；4.将上述2、3步所得皮芯层料，按所述体积比，用皮芯复合纺丝机纺制出卷绕丝；再将卷绕丝在65－95℃温度下，拉伸2－4倍，切断即可得所述保健纤维。The invention relates to a health-care fiber and a manufacturing method thereof. The health-care fiber has a skin-core structure, and the skin-core volume ratio is 3:7-7:3; the weight percentage formula of the skin layer material is: skin layer polymer 92.6-97.9%, pearl protein powder with a particle size of 0.05-1.0 μm 2- 7%, coupling agent 0.1-0.4%; core layer material weight percent formula is: core layer polymer 88-99%, fragrance 1-12%. The manufacturing method of the health-care fiber is carried out according to the formula and the following process: 1. Dry the pearl protein powder at 90-110°C for 3-5 hours; 3. After uniformly mixing the core material, at a temperature of 150-230°C, extrude and granulate through twin-screw to obtain the core material; 4. The skin-core layer material obtained in the above 2 and 3 steps, according to the volume ratio, is spun with a skin-core composite spinning machine to produce coiled yarn; then the coiled yarn is stretched 2-4 times at a temperature of 65-95°C , cut to get the health fiber.
Description
Technical field
The present invention relates to functional fibre and manufacture method technology thereof, be specially a kind of health fiber and manufacture method thereof that has aromatic odor effect and pearl protein skin-protecting function simultaneously, IPC Main classification number plan is Int.Cl
7D01F 2/08.
Background technology
Functional fibre is the emphasis of studying at present both at home and abroad.Contain amino acid, calcium carbonate and other trace element in the pearl powder, human body is had certain cosmetology and health-care function, so people have researched and developed the functional fiber that human body is had certain health-care function---the pearl protein fiber.For example, Chinese patent CN1176257 number a kind of pearl protein function synthetic fibre is disclosed.It at first prepares the master batch that contains Margarita albumen powder, and powder content is 15-40%, then this master batch and synthetic fiber material is mixed with into the Margarita albumen powder synthetic fiber, and the powder content in the fiber is 2.5-5.5wt%.Chinese patent CN1616724A number has been introduced a kind of Nano Silver is the antibacterial protein fiber.It has added Nano Silver in polymer be that the antibacterial protein powder prepares azelon, and powder accounts for 0.5～4% of total weight of fibers.Fragrant fiber also is a kind of functional fiber that human body is had certain health-care function.For fragrant fiber many patent documentation reports are arranged also, for example, U.S. Pat P 5206080 has reported that a kind of cortex is PET, and sandwich layer is 0.1～5% essential oil and paraffin and modified paraffin mixture of polymers fragrant fiber; 4713291 of U.S. Pat P have reported the compound fragrant fiber of a kind of core-skin, are characterized in comprising a cortex and the core with hollow space at the cross section of fiber, and a kind of component wherein is that the boiling point under normal pressure is higher than 150 ℃ aromatic spice.This spices adds with the amount of 0.1-10% and is scattered in the thermoplastic polymer that constitutes core.Core layer polymer polyethylene, cortex polymer are PET.Thereby having spelt out a kind of extractive matter of essential oil or fragrant plant and herbal medicine that adopts in patent stimulates sense of smell to treat a kind of new treatment of special mental disease---" aromatotherapy ".But the functional fibre of above-mentioned patent documentation report or only have the pearl protein health care, or only have aromatic function act on singlely relatively, and ideal is also owed in the function performance.Chinese patent CN1123349A has reported a kind of long acting antibiotic, body-building, aromatic fiber manufacturing method of fabrics, it adopts fiber textile is base-material, with hydrophilic finishing agent, anti-bacteria health finishing agent, health care essence finishing agent are main raw material, make through methods such as special process modification, grafting.Because this method adopts the technology of back arrangement, microencapsulated flavor etc. come off because of washing waits easily, thereby the stability of its fragrance function and persistence are relatively poor.
In the scope known to the applicant, about having pearl protein health care and aromatic odor effect simultaneously, and the bibliographical information of stable performance, function performance good health care fiber and manufacture method thereof is not seen as yet.
Summary of the invention
At the deficiencies in the prior art, the technical problem that quasi-solution of the present invention is determined is a kind of health fiber of design and manufacture method thereof, this health fiber has the health care of pearl protein simultaneously and distributes the health-care function of aromatic odor, it is a kind of health fiber with complex function effect, and pearl protein health care and fragrance effect are not disturbed mutually, coordinate mutually, health-care function is brought into play in stable performance jointly.The manufacturing approach craft of described health fiber of the present invention is simple, and cost is low, is convenient to industrializing implementation.
The technical scheme that the present invention solves the technical problem of described health fiber is: design a kind of health fiber, this health fiber has skin-core structure, and the core-skin volume ratio is 3: 7-7: 3; The percentage by weight prescription of described health fiber cortex material is: cortex polymer 92.6-97.9%, and average grain diameter is the pearl protein powder 2-7% of 0.05-1.0 μ m, coupling agent 0.1-0.4%; Described cortex polymer is that polytrimethylene terephthalate, polybutylene terephthalate (PBT), polycaprolactam, polyethylene terephthalate, melt index are a kind of in the polypropylene of 25-50; Described coupling agent is a kind of of isopropyl triisostearoyltitanate, isopropyl tri(dioctylphosphato)titanate, three oleoyl isopropyl titanates, three (dodecyl benzenesulfonyl) isopropyl titanate, isopropyl tri(dioctylpyrophosphato)titanate; The percentage by weight prescription of described health fiber core layer material is: core layer polymer 88-99%, spices 1-12%; Described core layer polymer is that polyethylene, polypropylene, fusing point are a kind of in 150～200 ℃ the polyester.
The manufacture method of health fiber of the present invention is undertaken by health fiber prescription of the present invention and following core-skin composite spinning silk technology:
1. functions/drying powder: with the Margarita albumen powder in the described fibrocortex material formula 90～110 ℃ dry 3-5 hours down;
2. make the health fiber cortex material: after in the ratio of health fiber cortex material of the present invention dried cortex polymer, pearl protein powder and coupling agent evenly being mixed, under 180-270 ℃ of temperature, extrude through twin-screw, granulation obtains described health fiber cortex material;
3. make the health fiber core layer material: after in the ratio of health fiber core layer material of the present invention core layer polymer, spices evenly being mixed, under 150-230 ℃ of temperature, extrude through twin-screw, granulation obtains described health fiber core layer material;
4. make the core-skin health fiber: health fiber cortex material and core layer material with above-mentioned 2,3 step gained by health fiber core-skin volume ratio of the present invention, spin out undrawn yarn with core-skin composite spinning silk machine; Again with undrawn yarn under 65-95 ℃ of temperature, stretching 2-4 doubly cuts off then, can obtain described health fiber.
Compared with prior art, health fiber of the present invention is owing to adopted core-sheath composite structure, functional materials pearl protein powder and fragrant material are blended in respectively among the cortex and sandwich layer of health fiber, therefore this health fiber can have certain cosmetology and health-care function and fragrant effect simultaneously, and the effect of two kinds of functional mass is not disturbed mutually, coordinating mutually, bring into play health-care function jointly, is the health fiber that a kind of stable performance ground has the complex function effect.Health fiber manufacturing approach craft of the present invention is simple, does not need special installation, and cost is low, is convenient to industrializing implementation.
The specific embodiment
Further narrate the present invention below in conjunction with embodiment:
A kind of health fiber of the present invention's design has skin-core structure, and its core-skin volume ratio is 3: 7-7: 3; The percentage by weight prescription of described health fiber cortex material is: cortex polymer 92.6-97.9%, and average grain diameter is the pearl protein powder 2-7% of 0.05-1.0 μ m, coupling agent 0.1-0.4%, each component sum is 100%; Described cortex polymer is that polytrimethylene terephthalate, polybutylene terephthalate (PBT), polycaprolactam, polyethylene terephthalate, melt index are a kind of in the polypropylene of 25-50; Described coupling agent is a kind of of isopropyl triisostearoyltitanate, isopropyl tri(dioctylphosphato)titanate, three oleoyl isopropyl titanates, three (dodecyl benzenesulfonyl) isopropyl titanate, isopropyl tri(dioctylpyrophosphato)titanate; The percentage by weight prescription of described health fiber core layer material is: core layer polymer 88-99%, spices 1-12%, and each component sum is 100%; Described core layer polymer is that polyethylene, polypropylene, fusing point are a kind of in 150～200 ℃ the polyester.
The cortex polymer that uses in the cortex material of the present invention is: polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT) (PBT), polycaprolactam (PA-6), polyethylene terephthalate (PET), melt index are a kind of in the polypropylene (PP) of 25-50.But a kind of among preferred described PTT, PBT or the PA-6.This mainly is because they have better dyeability.
The pearl protein powder that adds in the fiber sheath layered material of the present invention can be buied on market, and requiring average grain diameter is 0.05-1.0 μ m.The particle diameter of pearl protein powder is excessive, is unfavorable for spinning; Grain is through too small, and cost rises, unfavorable applying.
The coupling agent that adds in the fiber sheath layered material of the present invention is a kind of of isopropyl triisostearoyltitanate, isopropyl tri(dioctylphosphato)titanate, three oleoyl isopropyl titanates, three (dodecyl benzenesulfonyl) isopropyl titanate, isopropyl tri(dioctylpyrophosphato)titanate.The reason of why selecting these coupling agents for use is to improve the compatibility of described pearl protein powder and described fibre-forming polymer because of them, and can improve spinning speed.
Core layer polymer of the present invention is that polyethylene (PE), polypropylene (PP), fusing point are a kind of in 150～200 ℃ the polyester.Should be noted that cortex polymer of the present invention and core layer polymer are the fibre-forming polymer of variety classes or different parameters requirement fully.This design is the wearability (intensity of fiber, percentage elongation, feel etc.) that should keep health fiber, also will consider to reduce the volatilization of spices in preparation process simultaneously, adopts fusing point fibre-forming polymer on the low side as far as possible.
The spices that uses in the fibre core layered material of the present invention is meant one or more of Ethyl vanillin, vanillic aldehyde, jasmone, lilial, jasmine element, heliotropin, rhodinol, fanesol, Rosa Damascana, lavender oil, jasminal, lemon oil, peppermint oil, clove leaf oil.But spices scope used in the present invention is not limited by above-mentioned spices.Flavour content is designed to the 1-12% of core layer material weight.Experimental study shows that when flavour content was lower than 1%, aromatic odor was very low, and is functional not strong, is higher than the spinnability that then can influence fiber at 12% o'clock.
Consider the addition of sandwich layer spices, in core layer material prescription of the present invention, also can be added with the 1-10% bulking agent.When design had bulking agent, the percentage by weight prescription of described core layer material correspondingly was adjusted into core layer polymer 78-98%, spices 1-12%, bulking agent 1-10%.Described bulking agent is one or both in ethene-vinyl acetate, polyethylene glycol, the paraffin.
Health fiber core-skin volume ratio of the present invention is 3: 7-7: 3; But the core-skin volume ratio is 4: 6-6: 4 is even more ideal.Cortex ratio as fruit fiber is excessive, and the flavour content of fiber sandwich layer will be lower, and fragrance is not obvious; Otherwise, too small as the cortex ratio of fruit fiber, though help the increase of fiber fragrance, can influence the performance that fiber is improved looks and kept healthy, it is comparatively desirable therefore to require core-skin layer volume ratio to be controlled in the described proportion.On the other hand, how many designs of described core-skin ratio should combine design with the content of the functional mass that adds in the core-skin material, and during also promptly as the cortex large percentage of fruit fiber, the flavour content of fiber sandwich layer should improve selection relatively in described scope; And the cortex ratio of fiber hour, and the flavour content of fiber sandwich layer should reduce selection relatively in described scope.For the also design alternative of adding in the fiber sheath layered material in like manner of pearl protein powder content.
The manufacture method of health fiber of the present invention is carried out according to health fiber prescription of the present invention and following core-skin composite spinning silk technology:
1. functions/drying powder: with the Margarita albumen powder in the described fibrocortex material formula 90～110 ℃ dry 3-5 hours down; Contain organic substances such as amino acids in the Margarita albumen powder, when oven dry moisture, do not adopt high temperature as far as possible and cross long-time drying process, to prevent to influence the character and the composition of powder.
2. make the health fiber cortex material: after accounting for the full and uniform mixing of described coupling agent of described dried pearl protein powder, 0.1-0.4% of described dried polymer, the 2-7% of health fiber cortex compound weight 92.6-97.9% respectively, under 180-270 ℃ of temperature, extrude through twin-screw, granulation obtains described fiber sheath layered material;
3. make the health fiber core layer material: with accounting for the described polymer of the 88-99% of compound weight, the described spices of 1-12% respectively, extrude through twin-screw under 150-230 ℃ of temperature, granulation obtains gained fibre core layered material.
When design in described core layer material prescription when bulking agent is arranged, also to join the bulking agent of described ratio in the lump in the compound of described ratio and go by the prescription requirement;
4. make the core-skin health fiber: with the health fiber cortex material and the fibre core layered material of above-mentioned 2,3 step gained, by 3: 7-7: 3 particularly 4: 6-6: 4 core-skin volume ratio, spin out undrawn yarn with core-skin composite spinning silk machine, again with undrawn yarn under 65-95 ℃ of temperature, stretching 2-4 doubly can obtain described health fiber.
Health fiber of the present invention has core-sheath composite structure, its manufacture method has adopted core-skin composite spinning silk method, though the spices of products obtained therefrom health fiber is built in the in-core of health fiber, but the structural design of health fiber does not influence not only that it is outwards scentetd, but also helps it for a long time, stably outwards distribute; On the other hand, the design of pearl protein powder can directly contact skin at the skin of health fiber, also helps it and gives full play to positive health-care function.If take simple blending method, spices, pearl protein powder are directly mixed with fibre-forming polymer, granulation, spinning, spices will volatilize comparatively fast so, keeps the time of fragrance very short, and the pearl protein powder that is mixed in fibrous inside also is difficult to play a role.Especially behind fiber weaving cloth, to dye inevitably and during fabric post-treatment, often to use acid, aqueous slkali to handle and the hyperthermia drying typing, these technical process can make in the blended fiber perfume loss totally, it is real not have fragrance, the health care of fiber is still single, and is weakened.The another one of blend health fiber is unfavorable to be because spices also is organic compound, easily and the amino acid in the Margarita albumen powder react.Influence the health care of pearl protein.The health fiber of producing according to health fiber prescription of the present invention and manufacture method with composite construction, the pearl protein powder concentrates on fibrocortex relatively, and spices concentrates on the sandwich layer of fiber relatively, not only has certain cosmetology health-care function and fragrant effect simultaneously, and the effect of two kinds of functional mass is not disturbed mutually, coordinate mutually, bring into play health-care function jointly, and product fiber good luster, outward appearance is beautiful, soft, spinning suiting is good, and has very strong lasting aromatic odor.
The present invention does not address part and is applicable to prior art.
Below provide several specific embodiment of the present invention, but the present invention is not subjected to the restriction of embodiment:
Embodiment 1:
Get 97.9 parts of dried polyethylene terephthalate (percentage by weight, down together), 2 parts of pearl protein powders, 0.1 part of isopropyl triisostearoyltitanate after fully mixing, is extruded through twin-screw under 270 ℃, granulation produces the health fiber cortex material; Get 84 parts of polypropylene (MI=30), 4 parts in paraffin, Ethyl vanillin account for 12 parts, after fully mixing, extrude through twin-screw under 180 ℃, and granulation produces the health fiber core layer material; After gained core-skin material fully dried, spin out undrawn yarn with core-skin composite spinning silk machine by 7: 3 health fiber core-skin volume ratios; Again with undrawn yarn under 95 ℃ of temperature, stretch 3 times, relaxation heat setting, cut-out then can obtain described health fiber.
Embodiment 2:
Get 92.6 parts of the polypropylene of melt index (MI) 50,7 parts of dried pearl protein powders, 0.4 part of isopropyl tri(dioctylphosphato)titanate after fully mixing, is extruded through twin-screw under 190 ℃, and granulation produces the health fiber cortex material; Get 87 parts of polyethylene, 3 parts of ethene-vinyl acetates, vanillic aldehyde account for 10 parts, after fully mixing, extrude through twin-screw under 150 ℃, and granulation produces the health fiber core layer material; After the core-skin material fully dried, be at core-skin composite spinning silk machine to spin out undrawn yarn at 6: 4 by skin, the core volume ratio of health fiber; Again undrawn yarn is stretched 4 times under 65 ℃ of temperature, can obtain described health fiber.
Embodiment 3:
Get 95.8 parts of dried polytrimethylene terephthalates, 4 parts of pearl protein powders, 0.2 part of three oleoyl isopropyl titanate after fully mixing, are extruded through twin-screw under 260 ℃, and granulation produces the health fiber cortex material; Get 85 parts of low-melting point polyesters (fusing point: 150 ℃), 5 parts of polyethylene glycol, 5 parts of ethene-vinyl acetates, 1 part of jasminal, 2 parts of jasmones, plain 2 parts of jasmine after fully mixing, is extruded through twin-screw under 170 ℃, and granulation produces the health fiber core layer material; By skin, the core ratio of health fiber is at core-skin composite spinning silk machine to spin out undrawn yarn at 5: 5; Carry out the fiber post processing by embodiment 1 described method then, can obtain described health fiber.
Embodiment 4:
Get 93.7 parts of dried polycaprolactams, 6 parts of pearl protein powders, 0.3 part of three (dodecyl benzenesulfonyl) isopropyl titanate after fully mixing, is extruded through twin-screw under 250 ℃, and granulation produces the health fiber cortex material; Get 88 parts of polyethylene, 5 parts in paraffin,, 3 parts of polyethylene glycol, 2 parts of lilials, 2 parts of fanesols are extruded through twin-screw under 150 ℃ after fully mixing, and granulation produces the health fiber core layer material; After the core-skin material fully dried, be at core-skin composite spinning silk machine to spin out undrawn yarn at 4: 6, again undrawn yarn stretched 2 times under 90 ℃ of temperature, cut off then, can obtain described health fiber by health fiber skin, core ratio.
Embodiment 5:
Get 96.85 parts of dried polybutylene terephthalate (PBT)s, 3 parts of pearl protein powders, 0.15 part of isopropyl tri(dioctylpyrophosphato)titanate after fully mixing, is extruded through twin-screw under 270 ℃, and granulation produces the health fiber cortex material; Get 87 parts of low-melting point polyesters (fusing point: 200 ℃), 5 parts of ethene-vinyl acetates, 5 parts of heliotropins, 3 parts of rhodinols after fully mixing, are extruded through twin-screw under 230 ℃, and granulation produces the health fiber core layer material; Carry out spinning and post processing by the method for embodiment 1 then, can obtain described health fiber.
Embodiment 6:
Get 94.75 parts of the polypropylene of melt index 50,5 parts of pearl protein powders, 0.25 part of three oleoyl isopropyl titanate after fully mixing, are extruded through twin-screw under 190 ℃, and granulation produces the health fiber cortex material; Get 98 parts of polyethylene, 1 part of polyethylene glycol, 1 part of clove leaf oil after fully mixing, extrudes through twin-screw under 150 ℃, and granulation produces the fibre core layered material; By skin, the core ratio of health fiber is at core-skin composite spinning silk machine to spin out undrawn yarn at 3: 7; Carry out the fiber post processing by embodiment 2 described methods then, can obtain described health fiber.
Embodiment 7:
93.8 parts of poly-dried caprolactams, 6 parts of pearl protein powders, 0.2 part of isopropyl tri(dioctylpyrophosphato)titanate after fully mixing, is extruded through twin-screw under 250 ℃, and granulation produces the health fiber cortex material; Get 93 parts of polypropylene (MI=40), 3 parts of polyethylene glycol, 2 parts in paraffin, 2 parts of lavender oils after fully mixing, are extruded through twin-screw under 180 ℃, and granulation produces the health fiber core layer material; Carry out spinning and post processing by embodiment 3 described methods then, can obtain described health fiber.
Claims (4)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481830B (en) * | 2008-01-08 | 2012-11-14 | 吴张江 | Engaging double-screw rod spinning pearl functional fibre and manufacturing process thereof |
| CN103343397A (en) * | 2013-05-13 | 2013-10-09 | 吉林省华纺纤维制造有限公司 | Preparation method of polypropylene short fibers without peculiar smells |
| CN104562291A (en) * | 2014-11-12 | 2015-04-29 | 厦门翔鹭化纤股份有限公司 | Aromatic compound short fiber and preparation method thereof |
| CN109610037A (en) * | 2018-12-20 | 2019-04-12 | 江苏海欣纤维有限公司 | A kind of production method of Multifunctional polyester fiber |
| CN109652868A (en) * | 2018-12-20 | 2019-04-19 | 江苏海欣纤维有限公司 | A kind of production method of Multifunctional polyester fiber |
| CN114351288A (en) * | 2021-12-01 | 2022-04-15 | 中山尚洋科技股份有限公司 | Fiber wool and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920005729B1 (en) * | 1984-09-06 | 1992-07-16 | 미쓰비시 레이온 캄파니 리미티드 | Fragrant fiber |
| CN1641080A (en) * | 2003-03-06 | 2005-07-20 | 王开利 | Nano antibacterial composite-function aromatic fiber |
| CN100402715C (en) * | 2005-04-27 | 2008-07-16 | 天津工业大学 | A kind of functional fiber and its manufacturing method |
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2006
- 2006-03-07 CN CNB2006100132523A patent/CN100398705C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481830B (en) * | 2008-01-08 | 2012-11-14 | 吴张江 | Engaging double-screw rod spinning pearl functional fibre and manufacturing process thereof |
| CN103343397A (en) * | 2013-05-13 | 2013-10-09 | 吉林省华纺纤维制造有限公司 | Preparation method of polypropylene short fibers without peculiar smells |
| CN103343397B (en) * | 2013-05-13 | 2015-05-20 | 吉林省华纺纤维制造有限公司 | Preparation method of polypropylene short fibers without peculiar smells |
| CN104562291A (en) * | 2014-11-12 | 2015-04-29 | 厦门翔鹭化纤股份有限公司 | Aromatic compound short fiber and preparation method thereof |
| CN104562291B (en) * | 2014-11-12 | 2016-11-02 | 厦门翔鹭化纤股份有限公司 | A kind of fragrance composite short fiber and preparation method thereof |
| CN109610037A (en) * | 2018-12-20 | 2019-04-12 | 江苏海欣纤维有限公司 | A kind of production method of Multifunctional polyester fiber |
| CN109652868A (en) * | 2018-12-20 | 2019-04-19 | 江苏海欣纤维有限公司 | A kind of production method of Multifunctional polyester fiber |
| CN114351288A (en) * | 2021-12-01 | 2022-04-15 | 中山尚洋科技股份有限公司 | Fiber wool and preparation method thereof |
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| CN100398705C (en) | 2008-07-02 |
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