WO2020045183A1 - Fibre à base d'acrylonitrile, tissu duveté contenant ladite fibre, et produit fibreux contenant ledit tissu - Google Patents

Fibre à base d'acrylonitrile, tissu duveté contenant ladite fibre, et produit fibreux contenant ledit tissu Download PDF

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Publication number
WO2020045183A1
WO2020045183A1 PCT/JP2019/032600 JP2019032600W WO2020045183A1 WO 2020045183 A1 WO2020045183 A1 WO 2020045183A1 JP 2019032600 W JP2019032600 W JP 2019032600W WO 2020045183 A1 WO2020045183 A1 WO 2020045183A1
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WO
WIPO (PCT)
Prior art keywords
acrylonitrile
fiber
pile fabric
fibers
pile
Prior art date
Application number
PCT/JP2019/032600
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English (en)
Japanese (ja)
Inventor
山下　修
友章 鈴木
祐介 奥田
Original Assignee
日本エクスラン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本エクスラン工業株式会社 filed Critical 日本エクスラン工業株式会社
Priority to JP2019557652A priority Critical patent/JP6646269B1/ja
Publication of WO2020045183A1 publication Critical patent/WO2020045183A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/54—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D27/00—Woven pile fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/02—Pile fabrics or articles having similar surface features
    • D04B1/04—Pile fabrics or articles having similar surface features characterised by thread material
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/02—Pile fabrics or articles having similar surface features
    • D04B21/04—Pile fabrics or articles having similar surface features characterised by thread material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics

Definitions

  • the present invention relates to an acrylonitrile-based fiber which is excellent in the manifestation of tapering when it is made into a pile fabric, a pile fabric having the fiber, and a fiber product containing the pile fabric.
  • Patent Literature 1 and Patent Literature 2 disclose that a fiber of a nap portion of a pile knitted fabric composed of polyester fiber is tapered at an end by treating with an alkaline glue.
  • Patent Document 3 discloses that a fiber is brought into contact with a refrigerant such as liquid nitrogen having a temperature of ⁇ 20 ° C. or lower to make the elongation of the fiber extremely low, and then cut by applying a drawing force or a shearing force.
  • a method for obtaining a tapered pointed fiber having a tip inclination angle of 70 degrees or less is disclosed.
  • Patent Literatures 1 to 3 require a step or equipment for performing tapering in addition to a pile processing step, which is not desirable in terms of cost.
  • the taper is sufficiently tapered compared to real fur, and satisfactory quality such as soft texture is not obtained, so that it has not been put to practical use.
  • the present invention has been made in view of the above-mentioned conventional problems, and its object is to perform a tapering process within a range of a normal pile processing process without requiring a special process or equipment, and to realize real fur.
  • An object of the present invention is to provide an acrylonitrile-based fiber capable of obtaining a soft texture that is practically satisfactory, a pile fabric containing the fiber, and a fiber product containing the pile fabric.
  • the above object of the present invention is achieved by the following means.
  • (1) The elongation at break in the load-elongation curve measured in an atmosphere at 150 ° C. is 150 to 900%, the strength at break is 0.03 to 0.8 cN / dtex, and the flatness is 1 Acrylonitrile fibers having a size of 5 to 10 and a fineness of 1.5 to 100 dtex.
  • the fiber of the napped portion is formed into a tapered shape close to real fur by a polisher process. This makes it easier to achieve softness like real fur. Therefore, it is possible to obtain a pile fabric having a tactile sensation closer to real fur, which has not existed in the past.
  • the acrylonitrile fiber of the present invention has an elongation of 150 to 900% in an atmosphere at 150 ° C. measured by the method described later.
  • the lower limit of the elongation is preferably 200% or more, more preferably 250% or more.
  • the upper limit is preferably 800% or less, more preferably 600% or less.
  • the acrylonitrile fiber of the present invention has a strength in an atmosphere at 150 ° C. of 0.03 to 0.8 cN / dtex, as measured by the method described later.
  • the lower limit of the strength is preferably 0.05 cN / dtex or more, and more preferably 0.08 cN / dtex or more.
  • the upper limit is preferably 0.5 cN / dtex or less, more preferably 0.3 cN / dtex or less. If the strength is within the above range, even in a process in which a strong force cannot be applied such as a polisher process, the acrylonitrile-based fiber can be easily stretched and can be moderately stretched because it does not easily break. This facilitates processing into fibers having a tapered shape.
  • the fineness of the acrylonitrile fiber of the present invention has a lower limit of 1.5 dtex or more, preferably 5 dtex or more, and more preferably 10 dtex or more.
  • the upper limit is 100 dtex or less, preferably 70 dtex or less, and more preferably 60 dtex or less.
  • pile processing becomes difficult, and it becomes difficult to obtain a desired pile fabric.
  • the acrylonitrile fiber of the present invention has a flatness of 1.5 to 10, preferably 3 to 8, determined by a method described later.
  • the flatness is less than 1.5, it approaches a round cross-section, and when the pile fabric is used, the bristle ends are likely to converge, thereby deteriorating the quality. If the flatness exceeds 10, the tips of the fibers are liable to break during pile processing or the like, and the quality of the obtained pile fabric may be reduced.
  • the acrylonitrile-based fiber of the present invention is a fiber mainly containing an acrylonitrile-based polymer.
  • the acrylonitrile-based polymer may be any conventionally used acryl fiber or one used in the production of acryl-based fiber, but contains acrylonitrile as a constituent component in an amount of 50% by weight or more, preferably 80% by weight. , More preferably at least 85% by weight.
  • the upper limit is preferably 95% by weight or less, more preferably 93% by weight or less. If the amount is less than 50% by weight, the physical properties of the fiber at a high temperature are excessively reduced, so that the fiber cannot withstand the polisher step in pile processing. When the content exceeds 95% by weight, it is difficult to shrink in the heat treatment in the fiber production process described later, so that it becomes difficult to obtain the elongation at break in the above range.
  • the monomer copolymerizable with acrylonitrile may be a vinyl compound, and typical examples include acrylic acid, methacrylic acid, or esters thereof; acrylamide, methacrylamide or N-alkyl substituents thereof; vinyl esters such as vinyl acetate; vinyl halides or vinylidenes such as vinyl chloride, vinyl bromide, and vinylidene chloride; vinyl sulfonic acid, allyl sulfonic acid, methallyl sulfonic acid, p-styrene Unsaturated sulfonic acids such as sulfonic acids and salts thereof can be mentioned.
  • the acrylonitrile-based polymer a plurality of types may be used as constituent components as long as the above-described composition is satisfied.
  • the method for synthesizing the acrylonitrile-based polymer is not particularly limited, and a known polymerization method such as a suspension polymerization method, an emulsion polymerization method, or a solution polymerization method can be used.
  • the acrylonitrile fiber of the present invention contains a plasticizing component preferably in an amount of 0.1 to 20% by weight, more preferably 0.3 to 5% by weight, based on the acrylonitrile polymer. Desirably. As a result, the strength can be easily reduced, and acrylonitrile fibers satisfying the strength in the above-described range can be easily obtained.
  • Such a plasticizing component is desirably present in a state dispersed in the fiber.
  • the fibers can be easily stretched evenly during pile processing, and the tapered shape can be easily formed. Needless to say, as long as the plasticizing component is contained inside the fiber, it may also be present on the fiber surface.
  • the plasticizing component is not particularly limited as long as it is composed of an organic material and can reduce the strength by being contained in acrylonitrile-based fibers.
  • a high molecular compound is preferable to a low molecular compound.
  • such a polymer compound has a polar side chain or functional group such as a polyalkylene oxide chain, a polyetheramide chain, a polyetherester chain, or a carboxyl group from the viewpoint of affinity with the acrylonitrile-based polymer.
  • Organic high molecular compounds are exemplified.
  • Such an organic polymer compound is considered to reduce the crystallinity of the acrylonitrile-based polymer, thereby obtaining an effect of lowering the strength at the breaking point.
  • Particularly useful plasticizing components include acrylonitrile-based resins having polar side chains and functional groups.
  • the acrylonitrile-based resin preferably contains acrylonitrile in an amount of preferably 10 to 70% by weight, more preferably 15 to 50% by weight, and still more preferably 15 to 30% by weight.
  • the acrylonitrile-based polymer can have an appropriate affinity to the above-mentioned acrylonitrile-based polymer.
  • the affinity for the acrylonitrile-based polymer will be too low, the thread breakage will occur frequently in the spinning process, the operability will deteriorate, and if it exceeds the upper limit of the range, The obtained acrylonitrile-based fiber may not have sufficient elongation.
  • Such acrylonitrile-based resins include, for example, a method of copolymerizing acrylonitrile with a vinyl monomer having a polar side chain and a functional group (hereinafter referred to as a method [1]), and a vinyl monomer having a reactive functional group with acrylonitrile. It can be obtained by a method (hereinafter referred to as method [2]) in which a copolymer is obtained and a reactive compound having a polar side chain / functional group is graft-reacted.
  • a monomer represented by the above formula 2 as a vinyl monomer having a polar side chain is used. It is preferable to use
  • the bonding content of the monomer is preferably 30 to 90% by weight, more preferably 50 to 85% by weight, and still more preferably 70 to 85% by weight based on the weight of the obtained copolymer. Is desirable.
  • the lower alkyl group in Chemical formula 2 generally means a group having 5 or less carbon atoms, and more practically 3 or less carbon atoms.
  • another vinyl compound may be copolymerized in addition to the above-mentioned vinyl monomer.
  • Preferred examples of the vinyl monomer having a polar side chain include a reaction product of 2-methacryloyloxyethyl isocyanate and polyethylene glycol monomethyl ether.
  • Preferred examples of the monomer represented by Formula 2 Examples thereof include methoxypolyethylene glycol (30 mol) methacrylate, methoxypolyethylene glycol (30 mol) acrylate, polyethylene glycol-2,4,6-tris-1-phenylethylphenyl ether methacrylate (number average molecular weight: about 1600) and the like. No.
  • preferred examples of the vinyl monomer having a reactive functional group include 2-hydroxyethyl methacrylate, acrylic acid, methacrylic acid, N-hydroxymethylacrylamide, N, N -Dimethylaminoethyl methacrylate, glycidyl methacrylate, 2-methacryloyloxyethyl isocyanate, and the like, and preferred examples include polyethylene glycol monomethyl ether, polyethylene glycol monomethacrylate, and the like.
  • a well-known polymerization means can be adopted, and it can be synthesized by a suspension polymerization method, an emulsion polymerization method, a solution polymerization method, or the like.
  • a graft reaction can be used to introduce a plasticizing component.
  • an acrylonitrile-based fiber of the present invention for example, a solution obtained by dissolving the above-mentioned acrylonitrile-based polymer in a solvent is mixed with the above-described plasticizing component as necessary to prepare a spinning dope.
  • a method of spinning a spinning stock solution and performing a process of coagulation, drawing, washing with water, heat treatment, crimping, and cutting to obtain a fiber is used.
  • the elongation and strength at break can be controlled by adjusting the shrinkage rate during the heat treatment.
  • the shrinkage during such heat treatment is preferably 40 to 60%, and more preferably 45 to 55%.
  • examples of the solvent in which the acrylonitrile-based polymer is dissolved include organic solvents such as dimethylformamide, dimethylacetamide, and dimethylsulfoxide, and inorganic solvents such as nitric acid, an aqueous solution of zinc chloride, and an aqueous solution of sodium thiocyanate.
  • the pile fabric of the present invention has the above-mentioned acrylonitrile-based fiber of the present invention in the nap portion, and the nap portion may be composed of only the fiber, but usually, cotton, wool, polyester fiber And other fibers such as acrylic fiber and nylon fiber.
  • the content of the acrylonitrile fiber of the present invention in the napped portion is preferably from 10 to 70% by weight, more preferably from 15 to 60% by weight, from the viewpoint of obtaining the effect of using the fiber.
  • the raised portion refers to a portion excluding the base fabric, and in the case of a normal pile fabric, it is a portion in which the fibers constituting the guard hair and the down hair are combined.
  • the method for producing the pile fabric of the present invention is not particularly limited, as long as the acrylonitrile-based fiber of the present invention is used at least in the raised portion, and a usual method can be employed. For example, a production method of knitting an original fabric of a pile fabric using a double Russell knitting machine, then performing center cutting, and then performing hair splitting, polishing, and shearing is used.
  • the acrylonitrile-based fiber of the present invention has a characteristic of being easily stretched as described above. For this reason, it is possible to enlarge even in the polishing step in processing into a pile fabric. In the polishing process, the pile is stretched around the tip of the raised portion, so that the pile can be tapered, and the obtained pile fabric has a tactile sensation closer to that of real fur.
  • the ratio of the width of the tip portion to the width of the root portion of the acrylonitrile fiber determined by the method described later is preferably 50% or less, more preferably 40% or less.
  • the obtained pile fabric has both softness at the tip end and napping at the root portion, and is closer to real fur.
  • the temperature condition of the polishing step for forming the tapered shape as described above a condition of preferably 180 to 210 ° C., more preferably 190 to 205 ° C. can be mentioned.
  • the pile fabric of the present invention described above can be used for textile products such as carpets, carpets and rugs, and in particular, can be suitably used for clothing such as coats, boots, hats, pharma mufflers, and fertile pets. .
  • Fineness The fineness was measured under the conditions of a temperature of 20 ° C. and a humidity of 65% according to JIS L 1013.
  • a high knitting machine was used to knit a pile knitted fabric having a basis weight of 1000 g / m 2 , and a backing treatment for gluing the back of the knitted fabric was performed. Subsequently, a pre-polishing process and a pre-shearing process are performed to form a pile, and the pile length of the guard hair is made uniform. A pile fabric was prepared in accordance with the final pile length.
  • Example 1 An acrylonitrile copolymer was prepared by subjecting 88% by weight of acrylonitrile and 12% by weight of vinyl acetate to suspension polymerization. Also, 35% by weight of acrylonitrile and 65% by weight of methoxypolyethylene glycol (9 mol) methacrylate were subjected to suspension polymerization to prepare an acrylonitrile-based resin (plasticizer A).
  • a plasticizer A was added to and mixed with the copolymer to prepare a spinning stock solution.
  • the spinning solution was spun out from a nozzle having a flat hole, coagulated, washed with water, and stretched. Next, it was shrunk by heat treatment using steam so that the shrinkage ratio before and after the heat treatment became 50%, and dried, thereby producing the acrylonitrile-based fiber of Example 1.
  • Example 2 The acrylonitrile-based fiber of Example 2 was produced in the same manner as in Example 1, except that the shrinkage was changed to 40% by changing the temperature of the heat treatment.
  • Example 3 The acrylonitrile fiber of Example 3 was produced in the same manner as in Example 1, except that the shrinkage was changed to 60% by changing the temperature of the heat treatment.
  • Example 4 The acrylonitrile fiber of Example 4 was produced in the same manner as in Example 1, except that the amount of the plasticizer A to be added and mixed was changed to 20% by weight.
  • Example 5 The acrylonitrile fiber of Example 5 was produced in the same manner as in Example 1, except that the amount of the plasticizer A to be added and mixed was changed to 0.2% by weight.
  • Example 6 The acrylonitrile fiber of Example 6 was produced in the same manner as in Example 1, except that the plasticizer A was not added and mixed.
  • Example 7 Acrylonitrile resin (plasticizer B) was prepared by suspension polymerization of 27.5% by weight of acrylonitrile and 72.5% by weight of methoxypolyethylene glycol (30 mol) methacrylate.
  • the acrylonitrile-based fiber of Example 7 was produced in the same manner as in Example 1, except that the type of the plasticizer to be added and mixed was changed from the plasticizer A to the plasticizer B.
  • Example 8 to 11 Acrylonitrile fibers of Examples 8 to 11 were produced in the same manner as in Example 1 except that the nozzle was changed.
  • Comparative Example 1 An acrylonitrile-based fiber of Comparative Example 1 was produced in the same manner as in Example 1, except that the shrinkage rate was changed to 35% by changing the temperature of the heat treatment. The pile fabric using the fiber did not have sufficient tapered shape and had insufficient softness.
  • Comparative Example 2 An acrylonitrile fiber of Comparative Example 2 was produced in the same manner as in Example 1, except that the shrinkage was changed to 65% by changing the temperature of the heat treatment. An attempt was made to produce a pile fabric using the fibers. However, the fibers were cut in the polisher process due to the low strength of the fibers, and the obtained pile fabric was inferior in appearance.
  • Example 3 a stock solution for spinning was prepared by changing the plasticizer A to be added and mixed to 22% by weight. When the spinning solution was spun out, it did not coagulate sufficiently, and acrylonitrile fibers could not be obtained.
  • Comparative Examples 4 and 5 Acrylonitrile fibers of Comparative Examples 4 and 5 were produced in the same manner as in Example 1 except that the nozzle was changed. In Comparative Example 4, since the degree of flatness was too large, there were many cracks at the bristle tip, and the pile fabric was inferior in appearance. In Comparative Example 5, since the fineness was too small, the pile fabric was inferior in napping property.
  • Example 6 In Example 1, an attempt was made to produce 120 dtex acrylonitrile-based fibers by changing the nozzle, but the spun stock solution could not be sufficiently coagulated and acrylonitrile-based fibers could not be obtained.
  • Table 1 shows the results of evaluating the fibers obtained in the above Examples and Comparative Examples.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Knitting Of Fabric (AREA)

Abstract

Le problème décrit par la présente invention concerne un tissu duveté faisant appel à des fibres synthétiques, des tentatives ont été faites pour effiler les extrémités distales des fibres afin d'approcher de la sensation de la vraie fourrure. Cependant, dans l'état de la technique, outre une étape de traitement du duvet, une étape et un équipement d'effilage étaient également nécessaires, un effilage suffisant n'avait pas été obtenu, et partant une qualité satisfaisante n'avait pas été atteinte. L'objet de la présente invention est de fournir une fibre effilée qui ne nécessite pas d'étapes ou d'équipement spéciaux, qui peut être traitée en effilage dans le cadre d'une étape normale de traitement de duvet, et qui peut offrir une sensation douce pratiquement satisfaisante, comparable à celle de la vraie fourrure. Selon la solution de la présente invention porte sur une fibre à base d'acrylonitrile caractérisée en ce que l'allongement au point de rupture sur une courbe force-allongement mesurée dans une atmosphère à 150°C est de 150-900, la force au point de rupture est de 0,03-0,8 cN/dtex, la planéité est de 1,5-10 et la finesse et de 1,5-100 dtex.
PCT/JP2019/032600 2018-08-30 2019-08-21 Fibre à base d'acrylonitrile, tissu duveté contenant ladite fibre, et produit fibreux contenant ledit tissu WO2020045183A1 (fr)

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JP2019557652A JP6646269B1 (ja) 2018-08-30 2019-08-21 アクリロニトリル系繊維、該繊維を含有するパイル布帛及び該布帛を含有する繊維製品

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JP2018-161426 2018-08-30
JP2018161426 2018-08-30

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221423A (en) * 1975-08-11 1977-02-18 Asahi Chem Ind Co Ltd Process for producing acrylic syntetic fibers
JPH0473209A (ja) * 1990-07-12 1992-03-09 Mitsubishi Rayon Co Ltd 異形断面アクリル系合成繊維とその製造方法
JP2004091943A (ja) * 2002-08-29 2004-03-25 Toray Ind Inc アクリル系繊維の製造方法
WO2015068774A1 (fr) * 2013-11-08 2015-05-14 三菱レイヨン株式会社 Fibre acrylique à retrait élevé, filé contenant cette dernière, et étoffe à poils en surépaisseur utilisant ledit fil
CN106521680A (zh) * 2016-09-28 2017-03-22 吉林吉盟腈纶有限公司 一种聚丙烯腈基扁平纤维的制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221423A (en) * 1975-08-11 1977-02-18 Asahi Chem Ind Co Ltd Process for producing acrylic syntetic fibers
JPH0473209A (ja) * 1990-07-12 1992-03-09 Mitsubishi Rayon Co Ltd 異形断面アクリル系合成繊維とその製造方法
JP2004091943A (ja) * 2002-08-29 2004-03-25 Toray Ind Inc アクリル系繊維の製造方法
WO2015068774A1 (fr) * 2013-11-08 2015-05-14 三菱レイヨン株式会社 Fibre acrylique à retrait élevé, filé contenant cette dernière, et étoffe à poils en surépaisseur utilisant ledit fil
CN106521680A (zh) * 2016-09-28 2017-03-22 吉林吉盟腈纶有限公司 一种聚丙烯腈基扁平纤维的制备方法

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