WO2006043661A1 - Fibre synthétique acrylique creuse - Google Patents

Fibre synthétique acrylique creuse Download PDF

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Publication number
WO2006043661A1
WO2006043661A1 PCT/JP2005/019393 JP2005019393W WO2006043661A1 WO 2006043661 A1 WO2006043661 A1 WO 2006043661A1 JP 2005019393 W JP2005019393 W JP 2005019393W WO 2006043661 A1 WO2006043661 A1 WO 2006043661A1
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WO
WIPO (PCT)
Prior art keywords
fiber
acrylic synthetic
synthetic fiber
hollow
weight
Prior art date
Application number
PCT/JP2005/019393
Other languages
English (en)
Japanese (ja)
Inventor
Masaaki Miyoshi
Takahiro Omoto
Original Assignee
Kaneka Corporation
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 Kaneka Corporation filed Critical Kaneka Corporation
Priority to JP2006543092A priority Critical patent/JP5014799B2/ja
Publication of WO2006043661A1 publication Critical patent/WO2006043661A1/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
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/40—Modacrylic fibres, i.e. containing 35 to 85% acrylonitrile
    • 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
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/32—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising halogenated hydrocarbons as the major constituent

Definitions

  • the present invention relates to a hollow acrylic synthetic fiber that is suitable mainly for pile applications and is lightweight, soft and has a bristle and matting effect.
  • Acrylic synthetic fibers are widely used in fields such as bores, seals, fleeces, fibers, and ypiles because of their soft feel and ease of handling.
  • the needles especially those used for clothing are desired to be lightweight, and various proposals have been made for light weight fibers.
  • a hollow acrylic fiber having a core-sheathed two spinning stock solution and having a hollow portion between the core and sheath Patent Document 1
  • Patent Document 2 proposes an acrylic synthetic fiber (Patent Documents 3 and 4) that forms a hollow portion by forming a skin layer and a core layer and then performing heat treatment.
  • Patent Document 1 requires a complicated process of using two spinning stock solutions and using a core-sheath nozzle (Patent Document 1), and only a cross section close to a circle is possible (Patent Documents 2, 3, and 4).
  • Patent Documents 2, 3, and 4 there was a problem that the tactile sensation was hard and the hair separation was not good at a thick fineness.
  • Patent Document 1 JP-A-9-78355
  • Patent Document 2 JP 2003-96618
  • Patent Document 3 JP-A 61-28014
  • Patent Document 4 Republished Patent WOOOZ70133
  • An object of the present invention is to obtain an acrylic synthetic fiber that is light and soft, has good brushing properties and has a matting effect at a large fineness.
  • the present invention is a cross section in which the major axis Z minor axis of the fiber cross section is 3 or more and has a hollow portion. It is a hollow acrylic synthetic fiber characterized in that 580 ⁇ ! A fiber having a light transmittance of 70% or less at ⁇ 600 nm is preferred.
  • a spinning solution of acrylonitrile-based polymer is obtained by spinning using a spinneret having holes in which at least one shape selected from a circle, an ellipse, and a rhombus is connected. Is also preferable.
  • the hollow acrylic synthetic fiber of the present invention is light and soft and excellent in handling the hair, and also has pores inside the fiber, so that it has a matte and so-called dull feeling expression effect. Therefore, it is particularly suitable for pile fibers having a large fineness, and a lightweight, soft and high-grade pile fabric can be obtained.
  • Fig. 1 is an example of a hole shape of a spinneret used in the present invention.
  • FIG. 2 is a model diagram of a skin core structure of a fiber cross section taken out of a coagulation bath in the present invention.
  • FIG. 3 is a cross-sectional photograph of a fiber after undergoing a hollowing process in the present invention.
  • the acrylonitrile-based copolymer in the present invention comprises 30 to 92% by weight of acrylonitrile and 8 to 70% by weight of one or more butyl group-containing monomers copolymerizable with acrylo-tolyl. A copolymerized product is used.
  • Bull group-containing monomers that can be copolymerized with acrylonitrile include acrylic acid, methacrylic acid, vinyl chloride, salt vinylidene, pyrbromide bromide, vinylidene bromide, vinyl acetates such as vinyl acetate, or bull pyrrolidone. , Burpyridine and its alkyl-substituted products
  • This acrylonitrile copolymer is dissolved in an organic solvent such as acetone, acetonitrile, dimethylformamide, dimethylacetamide, dimethyl sulfoxide, or an inorganic solvent such as salty zinc, nitric acid or rhodan salt.
  • an organic solvent such as acetone, acetonitrile, dimethylformamide, dimethylacetamide, dimethyl sulfoxide, or an inorganic solvent such as salty zinc, nitric acid or rhodan salt.
  • Spinning stock solution but use inorganic or organic pigments or stabilizers effective in anti-mold, anti-coloring, light resistance, etc., or additives that adjust inorganic or organic gloss and whiteness. May be.
  • the skin core structure formed in the coagulation bath becomes a structure having a relatively large core part inside each circle, ellipse or rhombus, as shown in FIG.
  • the concentration of the organic solvent or inorganic solvent in the bath or both is preferably 1 to 50% by weight, more preferably 5 to 35% by weight, and the temperature is preferable. Is ⁇ 10 ° C. to + 50 ° C., more preferably 0 ° C.
  • 90 ⁇ may be passed through saturated steam at LOO ° C!
  • the wet yarn from the washing bath or from the saturated steam process usually has a liquid content of about 60 to 200% by weight, but is dried at a low temperature of 5 to 70 ° C, preferably 20 to 50 ° C.
  • the liquid content is 5 to 40% by weight, preferably 15 to 30% by weight. At this time, it is considered that a large amount of water and solvent are present in the core.
  • the yarn having the adjusted liquid content is passed through a hollowing process, and by this process, water and solvent present in the core part are instantaneously expanded and volatilized to create a void in the core part.
  • the hollowing process may be a general dry heat treatment or hot heat treatment using hot air, etc., as long as the yarn can be rapidly heated, or a constant temperature bath using an organic compound such as polyethylene glycol or glycerin. . It is preferably performed at 120 to 180 ° C for dry heat and wet heat treatment, and at 100 to 140 ° C for a constant temperature bath. As a result, a fiber having voids in the core as shown in FIG. 3 is obtained. After the hollowing step, if necessary, stretching and heat treatment are performed to obtain a fiber having a hollow portion having a generally flat cross-sectional shape.
  • Example 1 Example 1
  • the cross-sectional shape of the sample fiber bundle was photographed with a scanning electron microscope at a magnification at which about 100 fiber cross-sections were inserted, and 100 fiber cross-sections with a porosity of 5% or more were hollowed out. And calculated by the following formula.
  • Hollowing ratio (%) [(number of fibers with a porosity of 5% or more) / (number of fibers measured)] X 100 Note that the porosity is a value of a hollow portion that is a hole or a network in the fiber cross section. From the area (A) and the area (B) other than the hollow part, the following formula was used.
  • the fiber strength and the point force of the texture are not preferred, so the fiber content of such a cross section exceeds 10%.
  • the product was judged not to have adequate performance as a hollow fiber.
  • the matte effect was evaluated by measuring the light transmittance of a single fiber.
  • the light transmittance of the sample fiber was measured and evaluated at two points for each of five single fibers, for a total of 10 points.
  • a transmission “bright field” neurogen lamp was used as the light source, and measurement was performed in the range of 580 to 600 nm, and the average of the transmittance at these wavelengths was defined as the light transmittance of the sample.
  • the fiber to be measured was immersed in 200 g of pure water, and the solvent in the fiber was eluted by boiling at 95 ° C for 30 minutes using a reflux condenser. Thereafter, the immersed fiber was taken out, dried at 110 ° C. for 2 hours, and the weight of the fiber was measured.
  • the solvent concentration in the solution from which the solvent was eluted was measured by gas chromatography (GC-14B) manufactured by Shimadzu Corporation. Fiber weight before soaking Fw, fiber weight after drying Fd, gas chromatography The solvent concentration in the solution measured from 1 was set as c, and the following formula was used.
  • Liquid content (%) [(Fw-Fd) / Fd] X 100
  • Solvent content (%) [C X (200 + Fw-Fd) / Fd] X 100.
  • the liquid content at this stage was 95% by weight, and the acetone content was 9% by weight.
  • low-temperature drying at 40 ° C for 7 minutes reduced the liquid content to 20% by weight and the acetone content to 5%.
  • the fiber was allowed to stay in a 160 ° C. dry heat treatment step for 10 seconds, and water and acetone were expanded and volatilized to develop a hollow portion.
  • the film was further stretched twice at 130 ° C and heat-treated at 145 ° C.
  • the fiber was allowed to stay in a 160 ° C. dry heat treatment step for 10 seconds, and water and acetone were expanded and volatilized to develop a hollow portion. Thereafter, the film was further stretched 1.5 times at 130 ° C and heat-treated at 145 ° C.
  • Z water 30Z70, passed through a bath at 25 ° C, where 1.5 times stretching was performed. Further, after passing through a water bath at 40 ° C, it was passed through hot water at 75 ° C where it was stretched twice. Furthermore, it passed through saturated steam at 96 ° C for 2 minutes. At this stage, the liquid content was 92% by weight and the acetone content was 2% by weight.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

La présente invention concerne une fibre synthétique acrylique de grande finesse, légère, souple, de bonne capillarité et d'un effet mat. La fibre synthétique acrylique est une fibre synthétique acrylique creuse dont l’axe majeur/l’axe mineur est supérieur ou égal à 3 en section de fibre, avec une partie creuse et possédant une transmittance de lumière de simple fibre (580 à 600 nm) ne dépassant pas 70%. De plus, la fibre synthétique acrylique creuse est également une fibre élaborée de préférence en filant/torsadant un liquide de filature comprenant un copolymère acrylonitrile dans une filière possédant des trous de trois gammes ou plus, d’au moins une forme sélectionnée parmi le cercle, l’ellipse et le losange dans un bain de coagulation, avant de sécher la fibre à basse température puis de chauffer la fibre dans une fourchette de températures allant de 120 à 180°C.
PCT/JP2005/019393 2004-10-22 2005-10-21 Fibre synthétique acrylique creuse WO2006043661A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006543092A JP5014799B2 (ja) 2004-10-22 2005-10-21 中空アクリル系合成繊維

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004308471 2004-10-22
JP2004-308471 2004-10-22

Publications (1)

Publication Number Publication Date
WO2006043661A1 true WO2006043661A1 (fr) 2006-04-27

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ID=36203074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/019393 WO2006043661A1 (fr) 2004-10-22 2005-10-21 Fibre synthétique acrylique creuse

Country Status (2)

Country Link
JP (1) JP5014799B2 (fr)
WO (1) WO2006043661A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6128014A (ja) * 1984-07-18 1986-02-07 Kanegafuchi Chem Ind Co Ltd アクリロニトリルを含む繊維の製造法
JPS62177255A (ja) * 1985-10-24 1987-08-04 鐘淵化学工業株式会社 発泡繊維を含有するパイル編織物
JPS6375113A (ja) * 1986-09-12 1988-04-05 Teijin Ltd フロツク加工用ポリエステル繊維

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6128014A (ja) * 1984-07-18 1986-02-07 Kanegafuchi Chem Ind Co Ltd アクリロニトリルを含む繊維の製造法
JPS62177255A (ja) * 1985-10-24 1987-08-04 鐘淵化学工業株式会社 発泡繊維を含有するパイル編織物
JPS6375113A (ja) * 1986-09-12 1988-04-05 Teijin Ltd フロツク加工用ポリエステル繊維

Also Published As

Publication number Publication date
JP5014799B2 (ja) 2012-08-29
JPWO2006043661A1 (ja) 2008-05-22

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