CN104342780A - Fiber-cutting composite fiber and manufacturing method thereof, nonwoven cloth and manufacturing method thereof - Google Patents
Fiber-cutting composite fiber and manufacturing method thereof, nonwoven cloth and manufacturing method thereof Download PDFInfo
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- CN104342780A CN104342780A CN201410379878.0A CN201410379878A CN104342780A CN 104342780 A CN104342780 A CN 104342780A CN 201410379878 A CN201410379878 A CN 201410379878A CN 104342780 A CN104342780 A CN 104342780A
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- 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
- D01F8/08—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyacrylonitrile as constituent
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- 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
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
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- 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
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Nonwoven Fabrics (AREA)
- Multicomponent Fibers (AREA)
- Mechanical Engineering (AREA)
Abstract
The present invention provides a fiber-cutting composite fiber and a manufacturing method thereof, a nonwoven cloth and the manufacturing method thereof. The present invention provides a fiber be cut by high pressure columnar water streams degree of external force is weak, and the cut fibers of very fine fiber after cutting the fiber composite fiber and exhibiting excellent wiping performance of the nonwoven fabric. A cut fiber composite fibers, and the use of the cut fiber composite fibers formed a nonwoven fabric, the cut fiber conjugated fiber comprising at least 60-90% by mass of component A, 10-40% by mass of component B, wherein the component a and the component B are not compatible. The component A or component B is an acrylonitrile polymer, with the shape of the fiber cross section perpendicular to the fiber axis into a flat shape aspect ratio of 3-20, and having a structure of the component a being a sea portion and the component B being the island portion. The cut fiber nonwoven fabric having a portion of the cut fiber composite fibers formed by cutting the fiber, the fiber portion having a cutting width of 0.01-1 [mu]m.
Description
Technical field
The present invention relates to nonwoven fabric and the manufacture method thereof of cutting fibre composite fibre and manufacture method thereof and employing this fiber.
Background technology
In recent years, in the products such as nonwoven fabric wiper, use has the acrylic fiber cutting fibre.These products majority uses the fiber that length are below 5mm, is generally processed into product by copy paper method, by the powerful power applying to be provided by beater to fiber, thus carries out finely cutting fibre to fiber.Therefore, the said goods wiping is good, but owing to employing adhesive, is therefore paper-like and without volume, Boardy Feeling.
Therefore, use the fiber that length is more than 10mm, can produce between fiber and tangle and make nonwoven fabric, thus not use adhesive also out of question, soft feel can be obtained, therefore preferably.In addition, cut the fiber after fibre, in order to play excellent wiping, preferably thinner fiber.
But when the fiber using fibre length long, when using the beaters such as beater/disc mill in the operation of fiber being cut to fibre, fiber is mutually wound around and forms fibre ball, produces mesh screen blocking, makes the problems such as the quality variation of cloth, industrial very difficult.
The fiber that fibre length is long cut the fine high-voltage column-like water stream preferably using water jet etc. used.But due to high-voltage column-like water stream, to cut fine ability compared with beater less, and fiber therefore used is contemplated to be and can be undertaken cutting fine fiber by the power of high-voltage column-like water stream.On the other hand, the acrylic fiber majority that fibre is cut in former having easily cuts fibre by beater, and can not get cutting fibre fully by the external force of high-voltage column-like water flow process degree.
Propose the scheme (patent document 1) about carrying out cutting by high-voltage column-like water stream fine acrylic fiber.The fibre diameter this acrylic fiber having been carried out cutting to fine part slightly reaches more than 0.1dtex (diameter about 3 μm), and the nonwoven fabric employing this acrylic fiber exists wiping problem.In addition, it is also proposed the scheme (patent document 2) about acrylic polymer and cellulose acetate compound being turned to the fiber of island structure.But this composite fibre cannot be undertaken cutting fibre by the power of high-voltage column-like water flow process degree.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2004-115946 publication
Patent document 2: Japanese Unexamined Patent Publication 2003-89924 publication
Summary of the invention
The problem that invention will solve
A kind of weak external force by high-voltage column-like water flow process degree is the object of the present invention is to provide to carry out cutting fibre, and it is superfine to cut the fiber after fibre, thus play excellent wiping when making nonwoven fabric cut fibre composite fibre, provide a kind of in addition and employ the nonwoven fabric that this cuts the wiping excellence of fibre composite fibre.
For the method for dealing with problems
The fibre composite fibre that cuts of the present invention is the fiber comprising the composition A of below more than 60 quality % 90 quality %, the composition B of below more than 10 quality % 40 quality %, composition A and composition B is immiscible, composition A or composition B is made up of acrylic polymer, the shape of the fibre section vertical with fiber axis is the flat pattern of the flat ratio less than more than 3 20 of following provisions, and has the composite construction that composition A is extra large portion, composition B is island portion.
In addition, about the flat ratio in the present invention, using length the longest in the fibre section vertical with fiber axis as Breadth Maximum, using length the longest on the thickness direction vertical with above-mentioned Breadth Maximum direction as maximum gauge, using Breadth Maximum/maximum gauge as flat ratio.
Of the present invention to cut fibre composite fibre preferred: it is the fiber comprising the composition A of below more than 60 quality % 90 quality %, the composition B of below more than 10 quality % 40 quality %, composition A and composition B is immiscible, composition A is the composition be made up of acrylic polymer, the shape of the fibre section vertical with fiber axis is the flat pattern of flat ratio less than more than 3 20, and has the composite construction that composition A is extra large portion, composition B is island portion.
Cut in fibre composite fibre of the present invention, preferably: the composition immiscible relative to the composition be made up of acrylic polymer is carry out from cellulose acetate, PVP, polyvinyl chloride and Dichlorodiphenyl Acetate cellulose at least one composition selected cellulosic group of alkali treatment.
Cut in fibre composite fibre of the present invention, in the fibre section vertical with filamentary fiber axis, the island portion number of preferred per unit fiber number is 60/more than dtex, 200/below dtex.
Cut in fibre composite fibre of the present invention, preferred filament denier is more than 1dtex below 20dtex, and the maximum gauge of above-mentioned flat pattern is more than 1 μm less than 10 μm, and filament percentage elongation is less than more than 10% 50%.
Manufacture method of cutting fibre composite fibre of the present invention is: the solution solution and the composition B immiscible with composition A that are dissolved in gained in solvent C as the composition A of acrylic polymer being dissolved in gained in solvent C mixes in the mode that composition A and the quality ratio A/B of composition B are 90/10 ~ 60/40 makes mixed solution, and above-mentioned mixed solution is rectangle and the spinning spinneret that the ratio of the long edge lengths of above-mentioned flat pattern and bond length and aperture ratio (long edge lengths/bond length) are the squit hole of less than more than 3 20 is ejected into and comprises the solidification liquid of solvent C from the squit hole shape with spinning spinneret.
In addition, manufacture method of cutting fibre composite fibre of the present invention is: the solution solution and the composition A immiscible with composition B that are dissolved in gained in solvent C as the composition B of acrylic polymer being dissolved in gained in solvent C is 90/10 ~ 60/40 mix and make mixed solution with composition A and the quality ratio A/B of composition B, above-mentioned mixed solution is rectangle and the squit hole that the ratio of above-mentioned rectangular long edge lengths and bond length and aperture ratio (long edge lengths/bond length) are less than more than 3 20 is ejected into and comprises the aqueous solution of solvent C from the squit hole shape of spinning spinneret.
Cut in the manufacture method of fibre composite fibre of the present invention, preferably immiscible with acrylic polymer composition is cellulose acetate.
Cut in the manufacture method of fibre composite fibre of the present invention, the solid component concentration of preferred above-mentioned mixed solution is below more than 15 quality % 30 quality %, the concentration of the solvent C of above-mentioned solidification liquid is less than more than 20% 60%, and temperature is more than 20 DEG C less than 60 DEG C.
Nonwoven fabric of the present invention is containing the above-mentioned nonwoven fabric cutting fibre composite fibre, have to above-mentioned cut that fibre composite fibre cuts fibre cut fine portion, above-mentionedly cut fine portion there is the part that fiber width is more than 0.01 μm less than 1 μm.
In nonwoven fabric of the present invention, preferably above-mentioned fibre length of cutting fibre composite fibre is more than 25mm below 150mm, and the above-mentioned containing ratio cutting fibre composite fibre is below more than 20 quality % 100 quality %.
In nonwoven fabric of the present invention, preferably cut fibre composite fibre containing the above-mentioned of below more than 20 quality % 80 quality %, have in any range of the 5mm × 5mm of nonwoven surface and cut fine portion.
In the manufacture method of nonwoven fabric of the present invention, the high pressure columnar fluid sprayed from ejiction opening is sprayed to comprising the above-mentioned net cutting fibre composite fibre, fine process is cut to cutting fibre composite fibre, the pressure of above-mentioned high pressure columnar fluid is more than 5MPa below 30MPa, and the distance from the ejiction opening of above-mentioned high pressure columnar fluid to net surface is more than 10mm below 100mm.
In the manufacture method of nonwoven fabric of the present invention, preferably the diameter of the ejiction opening of the above-mentioned high pressure columnar fluid of ejection is more than 80 μm less than 200 μm, and the transporting velocity of cutting the net of fine process of carrying out cutting fibre composite fibre is more than 5m/ minute less than 200m/ minute.
Cleaning wiping cloth of the present invention is the cleaning wiping cloth comprising above-mentioned nonwoven fabric.
The effect of invention
According to the present invention, one can be provided to cut fibre composite fibre, cutting fibre composite fibre is carry out cutting fibre by the weak external force of the high-voltage column-like water flow process degree used such as water jet, and cuts and cut the superfine fiber in fine portion after fibre, plays excellent wiping when making nonwoven fabric.In addition, cut fibre composite fibre by comprising this, the nonwoven fabric of wiping excellence can be provided.
Accompanying drawing explanation
Fig. 1 is the electron micrograph of an example when multiplying power 100 times of nonwoven fabric of the present invention.
Fig. 2 is the electron micrograph of another example when multiplying power 100 times of nonwoven fabric of the present invention.
Symbol description
D: in nonwoven fabric of the present invention, composite fibre has carried out cutting fine part with the degree not retaining fiber prototype
E: in nonwoven fabric of the present invention, composite fibre remains the part of fiber prototype
Detailed description of the invention
Below embodiments of the present invention are described in detail.
In the present invention, cutting fibre composite fibre is the fiber dissolving in the composition B in solvent C comprising the composition A of below more than 60 quality % 90 quality %, the common with composition A of below more than 10 quality % 40 quality %, composition A and composition B is immiscible, composition A or composition B is acrylic polymer, the shape of the fibre section (following, be also only called " fibre section ") vertical with fiber axis is the flat pattern of flat ratio less than more than 3 20.
Of the present invention cut fibre composite fibre due to composition A and composition B immiscible, therefore in fibre section, form the composite construction that the many composition A of quality ratio are extra large portion, quality ratio is few composition B is island portion, by adopting such composite construction, easily undertaken cutting fibre by the weak external force of high-voltage column-like water flow process degree.
In the present invention, so-called immisciblely to refer to, composition A is dissolved in solution Y that the solution X of gained in solvent C and composition B is dissolved in gained in solvent C when mixing, solution X and solution Y has interface, can observe the character be separated from each other.
Owing to having hydrophilic, oleophylic both sexes containing the nonwoven fabric cutting fibre composite fibre of the present invention, therefore preferred component A or composition B is acrylic polymer.Further, by making composition A be acrylic polymer, and there is very thin acute angle section, thus with employ other natural/chemical fibre phase specific volume is easy to get more excellent wiping properties.In addition, owing to easily stretching on the manufacture face of cutting fibre composite fibre, spinnability easily becomes good, therefore more preferably.
On the other hand, even if composition B is acrylic polymer, composition A also no problem in spinnability, preferably selects can obtain by the weak external force of high-voltage column-like water flow process degree the material cutting fibre.Here, as composition A, cellulose acetate, PVP, polyvinyl chloride, cellulose can be enumerated.
If the quality ratio cutting the composition A in fibre composite fibre is more than 60 quality %, then cuts the composite construction that fibre composite fibre forms island, if be below 90 quality %, then cut fibre composite fibre and easily cut fibre.
In addition, if the quality ratio of this composition B cut in fibre composite fibre is more than 10 quality %, then cut fibre composite fibre easily to be undertaken cutting fibre by the weak external force of high-voltage column-like water flow process degree, if above-mentioned quality ratio is below 40 quality %, then cut the composite construction that fibre composite fibre easily forms island, the number of times broken during spinning reduces, and operation easily becomes good by property.In the present invention, so-called weak external force, becomes target with the current of pressure gauge about 30MPa.
Be by acrylonitrile monemer as the acrylic polymer cutting the composition of fibre composite fibre of the present invention and can form with the unsaturated monomer of its copolymerization, polymer that acrylonitrile unit accounts for more than 50 quality %.In addition, as such can with the unsaturated monomer of acrylonitrile monemer copolymerization, acrylic acid, methacrylic acid or their alkyl esters, vinyl acetate, acrylamide, vinyl chloride, vinylidene chloride can be enumerated, further according to the vinylbenzenesulfonic acid sodium of object, methallylsulfonic acid sodium, sodium allylsulfonate, acrylamido methyl propane sulfonic acid sodium, sodium to sulfophenyl methallyl ether isoiony unsaturated monomer.Can with the unsaturated monomer of acrylonitrile monemer copolymerization more preferably vinyl acetate.By adopting vinyl acetate, dyeability becomes good, and manufacturing cost becomes cheap.
The composition immiscible with acrylic polymer cut in fibre composite fibre of the present invention, as long as composition that is immiscible relative to acrylic polymer, that can be dissolved in the solvent dissolving acrylic polymer, is just not particularly limited.Mentioned component is preferably and carries out from cellulose acetate, cellulose, PVP, polyvinyl chloride and Dichlorodiphenyl Acetate cellulose the composition selected cellulosic group of alkali treatment.
As long as these compositions, then spinnability is good, easily forms island structure.
The composition immiscible with acrylic polymer is more preferably and cuts the good cellulose acetate of fibre by the weak external force of high-voltage column-like water flow process degree.Further, consider from absorptive viewpoint, the preferred average acetylation degree of above-mentioned cellulose acetate is the cellulose acetate of less than more than 48.8% 62.5%, and more preferably average acetylation degree is the cellulose diacetate of less than more than 48.8% 56.2%.
In addition, if carry out the cellulose of cellulose to the whole of these cellulose acetates or a part by alkali treatment, then water imbibition improves further, therefore more preferably.
Do not damage derive from island structure cut in the scope of fibre, the fibre composite fibre that cuts of the present invention can containing other polymer, antiseptic, antistatic agent, preservative agent etc.
In addition, of the present inventionly the flat pattern that fibre composite fibre preferably forms flat ratio less than more than 3 20 on fibre section is cut.If the above-mentioned flat ratio on fibre section is more than 3, is easily subject to the external force of high-voltage column-like water stream, easily cuts fibre, if above-mentioned flat ratio is less than 20, the spinning of cutting fibre composite fibre becomes easy.From the viewpoint of cutting fibre, spinnability, more preferably above-mentioned flat ratio is 4 ~ 15, and further preferred above-mentioned flat ratio is 5 ~ 10.
Flat ratio in the present invention is measured by method described later (assay method of flat ratio).
Cut in fibre composite fibre of the present invention, undertaken cutting fibre by the weak external force applying high-voltage column-like water flow process degree.Therefore, the fibre section of cutting fibre composite fibre is preferably easily subject to the flat pattern of the impact of the weak external force of high-voltage column-like water flow process degree.In addition, formed cut fibre composite fibre polymer at fiber axis direction moderately stretch orientation, cutting fibre composite fibre inside, not define interface between similar polymers very important.Therefore, the fibre composite fibre that cuts of the present invention defines composite construction to external force fragility, even the weak external force that can play high-voltage column-like water flow process degree also can be cut finely excellent like this cut fibre to cutting fibre composite fibre efficiently.
Of the present inventionly cut fibre composite fibre, in preferred filamentary fibre section, the island portion number of per unit fiber number is 60/more than dtex, 200/below dtex.If the island portion number of per unit fiber number is 60/more than dtex, then because the interface between 2 kinds of compositions is increased, cut fibre good, wiping when therefore making nonwoven fabric is good, if the island portion number of per unit fiber number is 200/below dtex, the fibre strength of then cutting fibre composite fibre is difficult to reduce, and spinnability is good.Consider from above-mentioned viewpoint, the island portion number of preferred above-mentioned per unit fiber number is more than 70 less than 130, is more preferably more than 72 less than 110.
The preferred filament denier of fibre composite fibre that cuts of the present invention is more than 1dtex below 20dtex.If the filament denier cutting fibre composite fibre is more than 1dtex, the spinning of then cutting fibre composite fibre becomes easy, if above-mentioned filament denier is below 20dtex, then the less thick of fibre section, even the weak external force of high-voltage column-like water flow process degree also easily cuts fibre.Consider from above-mentioned viewpoint, more preferably above-mentioned filament denier is more than 2dtex below 10dtex, more preferably more than 3dtex below 6dtex.
Of the present inventionly cut fibre composite fibre, the maximum gauge (with reference to (mensuration of flat ratio) described later) of the flat pattern in optimum fiber cross section is more than 1 μm less than 10 μm.If above-mentioned maximum gauge is more than 1 μm, then in the manufacture employing the nonwoven fabric cutting fibre composite fibre, because in combing (card) operation forming the net sprayed by high-voltage column-like water stream, filament disconnects few, therefore it is good that combing operation passes through property, if be less than 10 μm, even if then cut fibre composite fibre also easily cut fibre by the weak external force of high-voltage column-like water flow process degree.Consider from above-mentioned viewpoint, the length of above-mentioned maximum gauge is more preferably more than 3 μm less than 8 μm.In addition, so-called net refers to that multiple staple fibre is neat or randomly stacked and is formed as the material of sheet.
It is of the present invention that to cut the preferred filament percentage elongation of fibre composite fibre be less than more than 10% 50%.If above-mentioned filament percentage elongation is more than 10%, then disconnect few owing to cutting fibre composite fibre filament in above-mentioned combing operation, therefore combing operation is good by property, if above-mentioned filament percentage elongation is less than 50%, even if cut fibre composite fibre also easily cut fibre by the weak external force of high-voltage column-like water flow process degree.Consider from above-mentioned viewpoint, above-mentioned filament percentage elongation is more preferably less than more than 20% 40%, and more preferably less than more than 25% 35%.
The preferred fiber strength of fibre composite fibre that cuts of the present invention is more than 1cN/dtex below 3cN/dtex.If above-mentioned fiber strength is more than 1cN/dtex, then cut filament when fibre composite fibre forms nonwoven fabric disconnect few owing to using, therefore combing operation is good by property, if above-mentioned fiber strength is below 3cN/dtex, then easily cuts fibre by the weak external force of high-voltage column-like water flow process degree.Above-mentioned fiber strength is more preferably more than 1.5cN/dtex below 2.5cN/dtex.
The fibre composite fibre that cuts of the present invention is preferably cut to above below the 150mm of fibre length 25mm.If the fibre length of cutting fibre composite fibre is more than 25mm, then due in combing operation network capacity easily connect, therefore operation by property good, if the fibre length of cutting fibre composite fibre is below 150mm, then the generation of broken silk reduces, and easily obtains the net of quality better, in addition, cut fibre composite fibre easily to tangle each other, easily obtain the intensity of nonwoven fabric.Consider from above-mentioned viewpoint, the fibre length of cutting fibre composite fibre is more preferably more than 30mm below 120mm, more preferably more than 35mm below 80mm.
Manufacture method of cutting fibre composite fibre of the present invention is: the solution solution and the composition B immiscible with composition A that are dissolved in gained in solvent C as the composition A of acrylic polymer being dissolved in gained in solvent C is 90/10 ~ 60/40 mix and make mixed solution with composition A and the quality ratio A/B of composition B, and above-mentioned mixed solution is rectangle and the squit hole that the ratio of above-mentioned rectangular long edge lengths and bond length and aperture ratio (long edge lengths/bond length) are less than more than 3 20 is ejected into and comprises the aqueous solution of solvent C from the squit hole shape of spinning spinneret.
In addition, manufacture method of cutting fibre composite fibre of the present invention is: the solution solution and the composition A immiscible with composition B that are dissolved in gained in solvent C as the composition B of acrylic polymer being dissolved in gained in solvent C is 90/10 ~ 60/40 mix and make mixed solution with composition A and the quality ratio A/B of composition B, above-mentioned mixed solution is rectangle and the squit hole that the ratio of above-mentioned rectangular long edge lengths and bond length and aperture ratio (long edge lengths/bond length) are less than more than 3 20 is ejected into and comprises the aqueous solution of solvent C from the squit hole shape of spinning spinneret.
Manufacture method of cutting fibre composite fibre of the present invention, preferably mixes the solution of acrylic polymer dissolution gained in solvent C and component dissolves solution of gained in solvent C immiscible with acrylic polymer.Mix by acrylic polymer and the composition immiscible with acrylic polymer are dissolved in after in solvent respectively, in the fibre section forming island structure, the island portion number of per unit fiber number easily becomes 60/more than dtex, 200/below dtex.
Further, by being 90/10 ~ 60/40 to mix with composition A and the quality ratio A/B of composition B, the island portion number of per unit fiber number easily becomes 60/more than dtex, 200/below dtex.
In addition, cut in the manufacture method of fibre composite fibre of the present invention, preferably immiscible with acrylic polymer composition is at least one composition selected from the group of cellulose acetate, PVP and polyvinyl chloride, is more preferably cellulose acetate further.
As long as the solvent of the acrylic polymer of solvent C solvent components A is just not particularly limited, can be any one in inorganic series solvent, organic system solvent.As such solvent, include, for example nitric acid (aqueous solution), solder(ing)acid, the potassium rhodanide aqueous solution, dimethyl formamide, dimethylacetylamide, dimethyl sulfoxide (DMSO), ethylene carbonate, propylene carbonate, gamma-butyrolacton, acetone etc., particularly from the viewpoint of dissolubility, operability, dimethylacetylamide can be enumerated as preferred solvent.
As long as the squit hole shape of spinning spinneret is rectangle, the fibre section shape of cutting fibre composite fibre is the flat of flat ratio less than more than 3 20, then the aperture ratio (long edge lengths/bond length) of the squit hole of spinning spinneret is just not particularly limited, when the aperture ratio of above-mentioned squit hole shape is below more than 3 20, because the flat ratio of the fibre section shape of cutting fibre composite fibre easily forms less than more than 3 20, therefore preferred, aperture ratio is more preferably less than more than 5 15.In addition, the squit hole shape of spinning spinneret also can be flat pattern.Due to manufacturing conditions such as the spouting velocity according to fiber, stretching ratios, the performance rate of the flat degree of fiber is different, and therefore the aperture of above-mentioned squit hole than is preferably suitably selected according to the flat ratio of target fibers and manufacturing condition in the scope of above-mentioned aperture ratio.
The polymer concentration of mixed solution is different according to solvent, if be organic solvent, then preferably counts below more than 15 quality % 30 quality % with solid component concentration.If above-mentioned solid component concentration is more than 15 quality %, then the shape of fibre section easily forms flat pattern, if be below 28 quality %, then because the viscosity of mixed solution can not be too high, therefore operation easily becomes good by property.Above-mentioned solid component concentration is more preferably below more than 18 quality % 28 quality %, more preferably below more than 20 quality % 24 quality %.
Manufacture method of cutting fibre composite fibre of the present invention can use any one in wet-spinning, dry-and wet-type spin processes and dry spinning method, in these, wet-spinning solidifies soon due to mixed solution, and fibre section easily forms flat pattern, therefore preferably.In addition, wet-spinning, owing to easily forming many pleats at fiber surface, easily cuts fibre, therefore preferably.
About solidification liquid when use wet-spinning or dry-and wet-type spin processes, preferably use the aqueous solution of the solvent same solvent used with mixed solution.The aqueous solution that the temperature of preferred above-mentioned solidification liquid is more than 20 DEG C less than 60 DEG C, solvent strength is below more than 20 quality % 60 quality %.If the temperature of solidification liquid, concentration are above-mentioned scope, then solidifying of mixed solution can not be too slow, not easily forms fine and close fiber, therefore easily cut fibre, in addition, solidifying also can not be too fast, not easily form too much pleat structure at fiber surface, flat fiber shape can be maintained, therefore preferably.More preferably the temperature of above-mentioned solidification liquid is more than 30 DEG C less than 50 DEG C, solvent strength is below more than 30 quality % 50 quality %.
Using mixed solution as spinning solution, use squit hole shape to be that rectangular spinning spinneret is ejected in solidification liquid, made by excipient the undrawn yarn of fibre morphology, in boiling water, washed this undrawn yarn be stretched to stretching ratio 3 ~ 7 times simultaneously.If stretching ratio is more than 3 times, then the mechanical strength of the fiber of gained can not reduce, and the durability of spinning property, product improves.If stretching ratio is less than 7 times in addition, then not easily produce the operation troubles such as fracture of wire.By conventional method, finish process, drying, heat treatment without tension etc. are implemented to the drawn yarn of gained.
In addition, cut in the manufacture method of fibre composite fibre of the present invention, to the coagulated yarn before compacting by drying, washing silk or drawn yarn, also the functional materials of soil resistance, antibiotic property etc. can be added, the natural series materials such as material, chitin, shitosan such as such as fluorine based compound, amine compound.
In addition, cut in the manufacture method of fibre composite fibre of the present invention, alkali treatment can also be implemented, by whole or a part of celluloses of the cellulose acetate in island portion to the fibre composite fibre that cuts that such as aforesaid operations obtains.In this case, can obtain cellulose acetate whole or a part of for through the island portion of cellulose, acrylic polymer be the structure in extra large portion cut fibre composite fibre.
Above-mentioned alkali treatment can be undertaken by tow dyeing machine, cotton dyeing machine, yarn package dyeing machine, hank-dyeing machine etc.About above-mentioned alkali treatment condition, if such as island portion is cellulose diacetate, then flood cutting fibre composite fibre about 30 minutes in the sodium hydrate aqueous solution of concentration 12%, temperature 60 C.According to such alkali treatment, of the present inventionly cut the whole in cellulose of the cellulose diacetate in island portion in fibre composite fibre, become the composite fibre that cellulose is island portion, acrylic polymer is the composite construction in extra large portion.Alkali treatment condition according to application target, can change alkali, concentration, temperature, the times etc. such as NaOH.
Then, be described employing the nonwoven fabric cutting fibre composite fibre of the present invention.
Nonwoven fabric of the present invention is the nonwoven fabric containing cutting fibre composite fibre, also can comprise other fiber.Nonwoven fabric of the present invention has and cuts fibre composite fibre and carry out cutting fibre and the fine portion of cutting being formed as superfine fibre, and the above-mentioned fiber cutting fine portion has fiber width and is in part in more than 0.01 μm less than 5 μm scopes.
If compared with being 0.1dtex (3 μm) with the fiber number of cutting the thinnest part after fibre of cutting fibre fiber described in former patent document 1, then the fiber cutting fine portion in nonwoven fabric of the present invention has the fiber that fiber width is more than 0.01 μm less than 1 μm thinner like this.
Fine portion of cutting in nonwoven fabric of the present invention is when the manufacture of nonwoven fabric by the part that formed to net inject high pressure column current, carries out cutting fibre and be formed as superfine fiber with the degree of the fiber original shape before not retaining inject high pressure column current.In addition, cut in fine portion at this, the superfine fibre of low hydrophily ~ high-hydrophilic of cellulose acetate and/or cellulose main body mixes with the hydrophobic superfine fibre of acrylic polymer body and exists.
The fiber cutting fine portion of nonwoven fabric of the present invention preferably has the fiber that fiber width is more than 0.01 μm less than 5 μm.If above-mentioned fiber width is more than 0.01 μm, then the fiber portion of cutting fine gained is not easily cut off, if be less than 1 μm, then easily obtains good wiping.Above-mentioned fiber width is more preferably more than 0.1 μm less than 0.8 μm, more preferably more than 0.2 μm less than 0.5 μm.
There is the nonwoven fabric cutting fine portion be made up of superfine fibre like this there is good wiping properties.Therefore, employ the nonwoven fabric cutting fibre acrylic fiber of the present invention and there are hydrophilic, oleophylic both sexes, there is the superfine fibre that fiber width is more than 0.01 μm less than 1 μm, therefore, it is possible to obtain the wiping properties of the excellence to the dirt of water-based, oiliness, the attract dirt of minuteness particle.
It is that the of the present invention of more than 25mm below 150mm cuts fibre composite fibre that nonwoven fabric of the present invention preferably contains fibre length.If fibre length is more than 25mm below 150mm, then tangles and become easy, easily fully obtain the intensity of nonwoven fabric.Above-mentioned fibre length is more preferably more than 30mm below 120mm, more preferably more than 35mm below 80mm.
Nonwoven fabric of the present invention preferably cuts fibre composite fibre containing the of the present invention of more than 20 quality %, more preferably containing more than 40 quality %.If containing more than 20 quality %, then can fully obtain in nonwoven fabric wiping good cut fine portion.If the physical property of nonwoven fabric is no problem, then the preferred higher person of containing ratio cutting fibre composite fibre of the present invention.In nonwoven fabric of the present invention, can containing other raw material for obtaining physical property needed for nonwoven fabric.
Nonwoven fabric of the present invention cuts fine portion owing to having in any range of the 5mm × 5mm in length and breadth of nonwoven surface, and nonwoven fabric entirety has equably and cuts fine portion, and thus wiping is good, therefore preferably.
The preferred order of nonwoven fabric of the present invention is paid as 30g/m
2above 150g/m
2below.If the scope of paying for above-mentioned order, then the intensity of nonwoven fabric becomes abundant, can reuse, and raw material unit price also reduces.Above-mentioned order is paid and is more preferably 40g/m
2above 100g/m
2below.More preferably 45g/m
2above 75g/m
2below.
In addition, as other fiber contained by nonwoven fabric of the present invention, as long as the fiber that can be suitable in non-woven fabric manufacturing equipment is just not particularly limited, the synthetic fiber such as acrylic fiber, polyester fiber, polyamide fiber, vinal, polyamide fiber can be enumerated, the chemical fibres such as artificial fibre, cellulose acetate fibre, copper ammonia fibre, the natural fabrics such as cotton, fiber crops, wool, silk, preferably suitably use according to the application target of nonwoven fabric.Such as, from enhancing effect aspect, when being oily dirt by the object of wiping, preferred nonwoven fabric of the present invention comprises oil loving synthetic fiber, when being the water-based soils such as dirt dirt, sweat by the object of wiping, preferred nonwoven fabric of the present invention comprises hydrophilic chemical fibre, natural fabric.
The manufacture method of nonwoven fabric of the present invention is described.
Nonwoven fabric of the present invention can adopt dry process and damp process.So-called dry process refers to following method: the method arranged in a certain direction by using carding machine and the use air stream being called as air lay randomly carry out stacked method, staple fibre (fibre length 15mm ~ 100mm) is made the tablet that the filament that is called as net is laminated, utilize liquid stream or air-flow to apply weak external force to this net, make fiber entangled with one another and make nonwoven fabric.
In addition, so-called damp process refers to following method: be dispersed in water by staple fibre (below fibre length 6mm) and take up with netted screen cloth and make the paper-like thing being called as fleece, and nonwoven fabric is made in this fleece drying.In damp process, by carrying out making beating process when being dispersed in water by staple fibre, external force stronger compared with the external force of high-voltage column-like water stream can be applied to cutting fibre composite fibre.
The fibre composite fibre that cuts of the present invention, owing to being undertaken cutting fibre by the weak external force of high-voltage column-like water flow process degree, is therefore applicable to the method being made nonwoven fabric by above-mentioned damp process, is specifically described below to the method.
Of the present inventionly cut in the making of the net of fibre composite fibre comprising, carding combing, random combing, air lay mode, mode etc. of manufacturing paper with pulp can be used.When the fibre length of cutting fibre composite fibre is long, making of net preferably uses carding combing or random combing.
Preferably pay as 30g/m according to the order of net
2above 150g/m
2following mode is carried out stacked.If above-mentioned order is paid as 30g/m
2above, then the intensity of nonwoven fabric improves, and the operability of nonwoven fabric becomes good, if be 150g/m
2below, then net can overallly tangle, and easily also cuts fibre to cutting fibre composite fibre equably at thickness direction.
Then, the net of gained is placed on screen cloth, applies high-voltage column-like water stream to net, be delivered to carry out fiber entanglement each other and cut fibre composite fibre cut fine position.High-voltage column-like water stream sprays from the multiple ejiction openings arranged in the direction vertical with the throughput direction of net.
Process about the fibre that cuts cutting fibre composite fibre, net is placed on metal that is static or movement or resinous screen cloth, sprays the high-voltage column-like water stream sprayed from ejiction opening to above-mentioned net.About the bore of the nozzle of inject high pressure column current, quantity, configuration, as long as carry out cutting fine until the fiber width cutting fibre composite fibre of the present invention is in the scope of more than 0.01 μm less than 1 μm, be just not particularly limited.What use high-voltage column-like water stream in addition cuts fine process, can reprocessing, also can for arranging multistage nozzles unit, reprocessing or changing the multistep treatment of hydraulic pressure.
Hydraulic pressure to the high-voltage column-like water stream of net applying is preferably more than 5MPa below 30MPa.If above-mentioned hydraulic pressure is more than 5MPa, then cuts fibre composite fibre and can cut fibre fully, if be below 30MPa, then can reduce and be cut the fine cut-out of fiber, the generation of the perforation of nonwoven fabric.Consider from above-mentioned viewpoint, above-mentioned hydraulic pressure is more preferably more than 7MPa below 15MPa.
Row that the ejiction opening of the above-mentioned high-voltage column-like water stream of the multiple ejection of preferred formation is lined up and to net jet number sub-high pressure column current.By to net jet number sub-high pressure column current, easily cut the fine scope to the fiber width cutting fibre composite fibre in net with more than 0.01 μm less than 1 μm, in addition, the easy entirety of network capacity and obtain equably cutting fine portion.
That cuts fibre composite fibre cuts fine process, and the distance preferably from the ejiction opening of ejection high-voltage column-like water stream to net is more than 10mm below 100mm.If above-mentioned distance is more than 10mm, then because ejiction opening and net are difficult to contact, be therefore difficult to the state upsetting net, if be below 100mm, then due to the easy external force fully applying to cut required for fibre to net, therefore easily cut fibre fully.Above-mentioned distance is more preferably more than 15mm below 50mm, more preferably more than 15mm below 35mm.
In addition, preferably the diameter of the ejiction opening of ejection high-voltage column-like water stream is more than 80 μm less than 200 μm.If be more than 80 μm, then because high-voltage column-like water stream not easily punctures net, therefore not easily produce the perforation of nonwoven fabric, if be less than 200 μm, then owing to easily improving the external force of cutting required for fibre, therefore easily make to cut fibre composite fibre and cut fibre.Consider from above-mentioned viewpoint, above-mentioned diameter is more preferably more than 100 μm less than 180 μm, more preferably more than 120 μm less than 160 μm.
Further, preferably carry out cutting fibre composite fibre cut fine process time transmission net speed be more than 5m/ minute less than 50m/ minute.If above-mentioned speed is more than 5m/ minute, then productivity ratio is good, if be less than 50m/ minute, then owing to putting inject high pressure column current fully arbitrarily, therefore easily can cut fibre.Above-mentioned speed is more preferably more than 10m/ minute, below 40m/ minute, is more preferably more than 15m/ minute, below 30m/ minute.
In addition, when nonwoven fabric comprises other fiber except cutting fibre composite fibre, after cutting fibre composite fibre and other fibers mixture, net is made by using means arbitrarily with, cutting fibre to above-mentioned net inject high pressure column current to cutting fibre composite fibre, carrying out entanglement integration simultaneously and making nonwoven fabric.
Then, the cleaning wiping cloth formed by nonwoven fabric of the present invention is described.
The known cleaning wiping cloth employing the nonwoven fabric of superfine fibre in the past, as cleaning wiping cloth, the cleaning wiping cloth of known dry plate type, the cleaning wiping cloth of humidity strip type.For the cleaning wiping cloth of dry plate type, by utilizing the superfine fibre of formation sheet and being undertaken charged by the friction of wiping surface, thus attract dust, broken silk being wrapped on fiber catch.On the other hand, for the cleaning wiping cloth of humidity strip type, formed by cellulose fibres such as cotton, artificial fibre, cuprammonium rayons, use the washing agent, cerate etc. of water or dipstick, wiping is attached to the dirt on bed etc.
The cleaning wiping cloth formed by nonwoven fabric of the present invention can be dry plate type or humidity strip type.It is superfine fibre in more than 0.01 μm less than 1 μm scope that cleaning wiping cloth of the present invention comprises fiber width.Owing to comprising the superfine fiber of above-mentioned fiber width, therefore for dry plate type, increase with the contact area of the dirt such as dust, fat, the dirt seizure undertaken by utilizing absorption, the stripping etc. of dirt epithelium, the wiping properties that performance was more excellent compared with former cleaning wiping cloth.In addition, what comprise cellulose acetate and/or cellulose and acrylic polymer due to cleaning wiping cloth of the present invention cuts fibre composite fibre, therefore utilizes the hydrophily of cellulose fibre, even humidity strip type also can play excellent wiping properties.Cleaning wiping cloth of the present invention not only has excellent wiping properties, and owing to not needing special technology, operation when the making of nonwoven fabric, therefore compared with the cleaning wiping cloth employing former superfine fibre, can obtain more at an easy rate.
Embodiment
Below, by embodiment, the present invention is specifically described.In addition, the mensuration of the projects in embodiment is according to following method.
(assay method of flat ratio)
The fibre composite fibre that cuts of about 200 is loaded in the polyethylene pipe of internal diameter 1mm, advertises the hot blast of drying machine afterwards, with the bundle cutting fibre composite fibre adeciduate degree, polyethylene pipe is shunk.Here, above-mentioned polyethylene pipe uses the pipe only along the circumferential direction shunk.
Then, using the blade of untapped razor to cut off being filled with the above-mentioned polyethylene pipe cutting fibre composite fibre along the direction substantially vertical with direction of principal axis, making the length of about 1cm.
Double faced adhesive tape is used to be fixed on platform by the one side in the face of above-mentioned cut-out, use low-temperature ion sputter equipment (Jeol Ltd.'s system, JFC-1100), under 1200V-5mA, the condition of 10 minutes, to as the section gold evaporation cutting fibre composite fibre of sightingpiston of another side being positioned at section, make sample.
Use scanning electronic microscope (Hitachi Co., Ltd's system, S-3500N), the fibre section of cutting fibre composite fibre of above-mentioned sample is observed with multiplying power 500 times, select 25 to eradicate to make due to external force when loading pipe flat pattern to produce and cut fibre composite fibre beyond bending fiber, using length the longest in fibre section as Breadth Maximum, using length the longest on the thickness direction vertical with above-mentioned Breadth Maximum direction as maximum gauge, measure Breadth Maximum and maximum gauge respectively, using Breadth Maximum/maximum gauge as flat ratio.Calculate the flat ratio that 25 are cut the fibre section of fibre composite fibre, use the mean value of this flat ratio.
(mensuration of filament denier)
Leave standstill cutting fibre composite fibre after 60 minutes under the environment of temperature 25 DEG C, humidity 65%, use automatic vibration formula fineness tester (Search controls Electric Co., Ltd's system, Denior Computer DC-11), measure under the condition of temperature 25 DEG C, humidity 65%.Cut fibre composite fibre to 25 to measure, use its mean value.
(the island portion number of per unit fiber number)
The method same with the assay method of above-mentioned flat ratio is used to prepare sample.Cut fibre composite fibre to 3, observe its fibre section with multiplying power 500 times, count the island portion number in fibre section, this island portion number is obtained divided by filament denier.Cut fibre composite fibre to 3 and carry out this mensuration, use its mean value.
(cutting fibre evaluation)
The nonwoven fabric of each embodiment gained is cut to the size of 5mm × 5mm, double faced adhesive tape is used to be fixed on platform, use Jeol Ltd. JFC-1100 (low-temperature ion sputter equipment), under 1200V-5mA, the condition of 10 minutes, to the nonwoven surface gold evaporation of observation side, make sample.Observed with the multiplying power of 100 times by scanning electronic microscope (Hitachi Co., Ltd's system, S-3500N).Observe 5 local surfaces, cut fibre and judge according to following benchmark.
Zero: as shown in the D portion of Fig. 1, the degree do not retain with fiber prototype has carried out cutting fine part, at least 1 situation that can confirm in 5 samples
×: as shown in the E portion of Fig. 1, the degree not retain without fiber prototype has carried out cutting fine part and almost remaining prototype completely, the situation that 5 samples all can confirm
(having carried out the fiber width (Breadth Maximum and minimum widith) cutting fine fiber)
By preparing sample with the above-mentioned same method of fibre evaluation of cutting.Use scanning electronic microscope to observe made nonwoven fabric with multiplying power 100 times, select to cut fine portion.Observe this with 1500 times and cut fine portion, select to have carried out cutting fiber the thickest in fine fiber and the thinnest fiber, to the photo of selected fiber shooting amplification 8000 times, measure the width of this fiber.Here, so-called fiber width refers to the length of the width at a right angle with the length direction of fiber.
This mensuration is carried out to 10 local fine portions of cutting, uses its mean value.
(wiping)
The water-based soils pasteur pipet that the stoste of Sakura CRAY-PAS Inc., the special watercolors (blueness) of horse and water mix with mass ratio 1:1 is drunk up, with pasteur pipet, the amount of 1 is attached to apart from width 25mm, length 75mm, thickness 1mm, quality (W
0) inner side of one end more than 10mm of slide of g, measure the total quality (W of slide and water-based soils
1) g.Water-based soils on slide is the size that diameter is about 10mm.Afterwards immediately in the load of the nonwoven fabric being cut to 2cm × 2cm load 200g on the whole, above-mentioned nonwoven fabric is carried on slide, side polished dirt with the speed of 1m/min according to the mode by water-based soils surface.Then, the quality (W of the slide after wiping is measured
2) g.By calculating the mass ratio of the water-based soils of wiping with following formula, obtain wiping by the value of gained.
Mass ratio (%)=[1-(W of the water-based soils of wiping
2-W
0)/(W
1-W
0)] × 100
About wiping evaluation, the mass ratio (%) of the dirt of wiping is judged according to following benchmark.
5 grades: more than 99%, 4 grades: more than 98% and be less than 99%, 3 grades: more than 97% and be less than 98%, 2 grades: more than 96% and be less than 97%, 1 grade: be less than 96%
(confirmation method of intermiscibility)
Make solid component concentration be 20 quality % in dimethylacetylamide acrylic mixed with polymers, be heated to 80 DEG C and dissolve, make 200cc solution.In addition, another composition is mixed in dimethylacetylamide and makes solid component concentration be 20 quality %, be heated to 80 DEG C and dissolve, make the solution of 200cc.Above-mentioned 2 kinds of solution are put into 1 container together, under the atmosphere of 25 DEG C, uses Three-One Motor (iuchi Co., Ltd. system, SCR-100) to stir 30 minutes with revolution 600rpm, make mixed solution.Above-mentioned mixed solution is about 5g to be placed on slide, uses light microscope to observe with the multiplying power of 200 times.If immiscible, then interface can be observed.
(embodiment 1)
As composition A, the mode being the proportion of composing shown in table 1 according to acrylonitrile unit and vinyl acetate unit, by known water system suspension polymerization, obtains acrylic polymer (composition A1).Be mixed in by mentioned component A1 in dimethylacetylamide (solvent C), the quality ratio making composition A1 is 24 quality %, is heated to temperature 80 DEG C and makes composition A1 be dissolved in solvent C, obtain solution P.As composition B; the cellulose diacetate (composition B1) of average acetylation degree 55.2% is mixed in dimethylacetylamide (solvent C); the quality ratio making composition B1 is 18 quality %, is heated to 80 DEG C and makes composition B1 be dissolved in solvent C, obtaining solution Q.
[table 1]
Mixed solution P and solution Q, to make composition A1 and composition B1 quality ratio for 70/30, the mode mixed equably according to composition A1 and composition B1 is uniformly mixed, modulation mixed solution.By this mixed solution from the ratio of long edge lengths and bond length and aperture than the rectangular squit hole being 10, within linear velocity 30m/ minute, be ejected in temperature is 40 DEG C, the aqueous solution that is 35 quality % by the concentration of dimethylacetylamide is formed solidification liquid to spray, make coagulated yarn, while the solvent washed in boiling water in coagulated yarn is while be stretched to 3 times, add finish, implement heat treatment without tension 150 DEG C of dryings further, obtain cutting fibre composite fibre.Gained cut the fibre length that fibre composite fibre is cut to 40mm.
Gained cut fibre composite fibre, the flat pattern that as shown in table 2, formation filament denier is 3.3dtex, fibre section is flat ratio 7, is formed in the composite construction that acrylic polymer on fibre section is extra large portion, cellulose diacetate is island portion, as shown in table 3, what have excellence cuts fibre.
The fibre composite fibre that cuts being cut to the fibre length of 40mm is obtained net by carding combing.Carried this net with 20m/ minute and be placed on screen cloth.From ejiction opening diameter be the ejiction opening of 150 μm to the high-voltage column-like water stream of the net ejection hydraulic pressure 10MPa of conveying, to net inject high pressure column current.Distance from above-mentioned ejiction opening to net is set to 30mm.By high-voltage column-like water stream to net in cut fibre composite fibre cut fibre will cut simultaneously fibre composite fibre entanglement.Afterwards, obtain 110 DEG C of dryings 3 minutes the nonwoven fabric that order pays 50g/m2.
This nonwoven fabric has and cuts fibre composite fibre and carry out cutting fibre and making the superfine fibre of acrylic polymer body mix the fine portion of cutting existed with the superfine fibre of cellulose diacetate main body, as shown in table 2, cut fine fiber have by the Breadth Maximum of fiber width be 3.8 μm, minimum widith be the superfine fibre of 0.02 μm form cut fine portion, in addition, as shown in table 3, this nonwoven fabric has extremely excellent wiping.
(embodiment 2)
Change the quality ratio of the acrylic polymer (composition A1) in mixed solution in embodiment 1 and cellulose diacetate (composition B1), the acrylic polymer cut in fibre composite fibre (composition A1) and the quality ratio of cellulose diacetate (composition B1) are changed to shown in table 1, in addition, operate similarly to Example 1, make and cut fibre composite fibre and nonwoven fabric.Cut fibre composite fibre, nonwoven fabric proterties etc. as shown in table 2 and table 3.
(embodiment 3)
Except composition B being changed to the PVP (Nippon Shokubai Co., Ltd's system, PVPK-78) shown in table 1, operate similarly to Example 1, make and cut fibre composite fibre and nonwoven fabric.Cut fibre composite fibre, nonwoven fabric proterties etc. as shown in table 2 and table 3.
(embodiment 4)
Except composition B being changed to the polyvinyl chloride (Mitsubishi chemical Co., Ltd's system, SG-1100) shown in table 1, operate similarly to Example 1, make and cut fibre composite fibre and nonwoven fabric.Cut fibre composite fibre, nonwoven fabric proterties etc. as shown in table 2 and table 3.
(embodiment 5 ~ 7)
Except the containing ratio cutting fibre composite fibre in nonwoven fabric being changed to except shown in table 3, operating similarly to Example 1, making and cutting fibre composite fibre and nonwoven fabric.Cut fibre composite fibre, nonwoven fabric proterties etc. as shown in table 2 and table 3.
About in nonwoven fabric except the fiber cut except fibre composite fibre of the present invention, use the acrylic fiber of filament denier 1.0dtex, fibre length 40mm.
(embodiment 8)
Except the squit hole shape of spinning spinneret when changing spinning the flat ratio that obtains fibre section be 13 cut except fibre composite fibre, operate similarly to Example 1, make and cut fibre composite fibre and nonwoven fabric.By the flat ratio cutting the fibre section of fibre composite fibre of the squit hole shape of spinning spinneret during spinning, gained, cut fibre and nonwoven fabric cut in fine portion the Breadth Maximum and minimum widith that have carried out cutting fine fiber and wiping is shown in table 2 and table 3.
(comparative example 1 ~ 3)
Except the acrylic polymer of the composition A1 in mixed solution and the quality ratio of the cellulose diacetate of composition B1, the squit hole shape of spinning spinneret being changed to except shown in table 2, operating similarly to Example 1, making composite fibre and nonwoven fabric.About the composite fibre of comparative example 1 ~ 3 gained, its fibre section does not all form flat.By the composite fibre of comparative example 1 ~ 3 gained cut fibre and wiping is shown in Table 3, the composite fibre of gained does not all cut fibre.
(comparative example 4)
Except the quality ratio of the acrylic polymer of the composition A in fiber and the cellulose diacetate of composition B being changed to except shown in table 1, operating similarly to Example 1, making acrylic fibers peacekeeping nonwoven fabric.By the acrylic fiber of gained cut fibre and wiping is shown in Table 2, but the acrylic fiber of gained does not all cut fibre.
[table 2]
[table 3]
Industrial applicibility
Of the present inventionly cut fibre composite fibre, the weak external force of high-voltage column-like water flow process degree that provided by water jet, that fibre matting process is used carries out cutting fibre, and it is superfine to cut the fiber after fibre, thus play excellent wiping when making nonwoven fabric, therefore as cloth-like and have volume sense, wiping excellence the raw material of nonwoven fabric useful, nonwoven fabric of the present invention is as cloth-like and the cleaning wiping cloth of wiping excellence is useful in addition.
In addition, the fibre composite fibre that cuts of the present invention does not use special spinning process, but by the wet-spinning manufacture same with the manufacture method of common acrylic fibers, cut fibre also to be undertaken by the entanglement processing procedure of high-voltage column-like water stream that utilizes that the manufacture of nonwoven fabric is used, therefore cut fibre composite fibre, nonwoven fabric and then cleaning wiping cloth and all can obtain at an easy rate.
Claims (17)
1. one kind is cut fibre composite fibre, it is the fiber comprising the composition A of below more than 60 quality % 90 quality %, the composition B of below more than 10 quality % 40 quality %, composition A and composition B is immiscible, composition A or composition B is the composition be made up of acrylic polymer, the shape of the fibre section vertical with fiber axis is the flat pattern of flat ratio less than more than 3 20, and has the composite construction that composition A is extra large portion, composition B is island portion.
2. according to claim 1ly cut fibre composite fibre, it is the fiber comprising the composition A of below more than 60 quality % 90 quality %, the composition B of below more than 10 quality % 40 quality %, composition A and composition B is immiscible, composition A is the composition be made up of acrylic polymer, the shape of the fibre section vertical with fiber axis is the flat pattern of flat ratio less than more than 3 20, and has the composite construction that composition A is extra large portion, composition B is island portion.
3. according to claim 1ly cut fibre composite fibre, the composition immiscible relative to the composition be made up of acrylic polymer is carry out from cellulose acetate, PVP, polyvinyl chloride and Dichlorodiphenyl Acetate cellulose at least one composition selected cellulosic group of alkali treatment.
4. according to claim 1ly cut fibre composite fibre, in the fibre section vertical with filamentary fiber axis, the island portion number of per unit fiber number is 60/more than dtex, 200/below dtex.
5. according to claim 1ly cut fibre composite fibre, filament denier is more than 1dtex below 20dtex.
6. according to claim 1ly cut fibre composite fibre, the maximum gauge of described flat pattern is more than 1 μm less than 10 μm.
7. according to claim 1ly cut fibre composite fibre, filament percentage elongation is less than more than 10% 50%.
8. one kind is cut the manufacture method of fibre composite fibre, the solution solution and the composition B immiscible with composition A that are dissolved in gained in solvent C as the composition A of acrylic polymer being dissolved in gained in solvent C is 90/10 ~ 60/40 mix and make mixed solution with composition A and the quality ratio A/B of composition B, and described mixed solution is rectangle and the squit hole that the aperture ratio of described rectangular long edge lengths and the ratio of bond length and long edge lengths/bond length are less than more than 3 20 is ejected into and comprises the aqueous solution of solvent C from the squit hole shape of spinning spinneret.
9. one kind is cut the manufacture method of fibre composite fibre, the solution solution and the composition A immiscible with composition B that are dissolved in gained in solvent C as the composition B of acrylic polymer being dissolved in gained in solvent C is 90/10 ~ 60/40 mix and make mixed solution with composition A and the quality ratio A/B of composition B, and described mixed solution is rectangle and the squit hole that the aperture ratio of described rectangular long edge lengths and the ratio of bond length and long edge lengths/bond length are less than more than 3 20 is ejected into and comprises the aqueous solution of solvent C from the squit hole shape of spinning spinneret.
10. according to Claim 8 or manufacture method of cutting fibre composite fibre according to claim 9, the solid component concentration of described mixed solution is below more than 15 quality % 30 quality %, the concentration of the solvent C of described solidification liquid is below more than 20 quality % 60 quality %, and temperature is more than 20 DEG C less than 60 DEG C.
11. according to Claim 8 or manufacture method of cutting fibre composite fibre according to claim 9, and the composition immiscible with acrylic polymer is at least one composition selected from the group of cellulose acetate, PVP and polyvinyl chloride.
12. 1 kinds of nonwoven fabric, it is containing the nonwoven fabric cutting fibre composite fibre according to claim 1, have to described cut that fibre composite fibre cuts fibre cut fine portion, described in cut fine portion there is the part that fiber width is more than 0.01 μm less than 1 μm.
13. nonwoven fabric according to claim 12, described in cut fibre composite fibre fibre length be more than 25mm below 150mm, described in cut fibre composite fibre containing ratio be below more than 20 quality % 100 quality %.
14. nonwoven fabric according to claim 12, have and cut fine portion in any range of the 5mm × 5mm of nonwoven surface.
The manufacture method of 15. 1 kinds of nonwoven fabric, it is the manufacture method of nonwoven fabric according to claim 12, the high pressure columnar fluid sprayed from ejiction opening is sprayed to comprising the net cutting fibre composite fibre according to claim 1, fine process is cut to cutting fibre composite fibre, the pressure of described high pressure columnar fluid is more than 5MPa below 30MPa, and the distance from the ejiction opening of described high pressure columnar fluid to net surface is more than 10mm below 100mm.
The manufacture method of 16. nonwoven fabric according to claim 15, the diameter spraying the ejiction opening of described high pressure columnar fluid is more than 80 μm less than 200 μm, and the transporting velocity of cutting the net of fine process of carrying out cutting fibre composite fibre is more than 5m/ minute less than 200m/ minute.
17. 1 kinds of cleaning wiping cloth comprising nonwoven fabric according to claim 12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-162071 | 2013-08-05 | ||
| JP2013162071 | 2013-08-05 |
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| Publication Number | Publication Date |
|---|---|
| CN104342780A true CN104342780A (en) | 2015-02-11 |
| CN104342780B CN104342780B (en) | 2017-07-21 |
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| CN201410379878.0A Active CN104342780B (en) | 2013-08-05 | 2014-08-04 | Cut fibre composite fibre and its manufacture method and non-woven fabrics and its manufacture method |
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| Country | Link |
|---|---|
| JP (1) | JP6417767B2 (en) |
| KR (2) | KR101626205B1 (en) |
| CN (1) | CN104342780B (en) |
| TW (1) | TWI628325B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630290A (en) * | 2016-07-18 | 2018-01-26 | 东丽纤维研究所（中国）有限公司 | A kind of skin care sheet-like nonwoven cloth and its production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7079605B2 (en) * | 2018-01-04 | 2022-06-02 | 日本製紙クレシア株式会社 | Non-woven wiper and its manufacturing method, manufacturing equipment |
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2014
- 2014-07-29 JP JP2014153479A patent/JP6417767B2/en not_active Expired - Fee Related
- 2014-08-04 CN CN201410379878.0A patent/CN104342780B/en active Active
- 2014-08-04 TW TW103126519A patent/TWI628325B/en not_active IP Right Cessation
- 2014-08-04 KR KR1020140099682A patent/KR101626205B1/en active IP Right Grant
-
2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630290A (en) * | 2016-07-18 | 2018-01-26 | 东丽纤维研究所（中国）有限公司 | A kind of skin care sheet-like nonwoven cloth and its production method |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI628325B (en) | 2018-07-01 |
| JP6417767B2 (en) | 2018-11-07 |
| KR101723335B1 (en) | 2017-04-04 |
| CN104342780B (en) | 2017-07-21 |
| JP2015052196A (en) | 2015-03-19 |
| TW201522731A (en) | 2015-06-16 |
| KR101626205B1 (en) | 2016-05-31 |
| KR20160040499A (en) | 2016-04-14 |
| KR20150016905A (en) | 2015-02-13 |
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