GB1281942A - Improvements in or relating to acrylonitrile polymer fibers and process for producing the same - Google Patents

Improvements in or relating to acrylonitrile polymer fibers and process for producing the same

Info

Publication number
GB1281942A
GB1281942A GB36949/69A GB3694969A GB1281942A GB 1281942 A GB1281942 A GB 1281942A GB 36949/69 A GB36949/69 A GB 36949/69A GB 3694969 A GB3694969 A GB 3694969A GB 1281942 A GB1281942 A GB 1281942A
Authority
GB
United Kingdom
Prior art keywords
fibre
fibres
immersing
solution
treated
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB36949/69A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Publication of GB1281942A publication Critical patent/GB1281942A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
    • D06M13/232—Organic carbonates
    • 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
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2978—Surface characteristic

Landscapes

  • 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)
  • Artificial Filaments (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Multicomponent Fibers (AREA)

Abstract

1281942 Polyacrylonitrile fibres MITSUBISHI RAYON CO Ltd 36949/69 Heading B5B [Also in Division D1] An acrylonitrile polymer or copolymer fibre having an outer layer insoluble in dimethyl formamide at 75‹ C. which layer comprises ridges of more than 0À2 Á height at intervals of 1À5 to 12 Á in the plane of the longitudinal axis of the fibre may be produced by treating the fibre with a denaturalizing agent, defined as a chemical agent which makes the outer layer of the fibre insoluble in dimethyl formamide at 75‹ C., immersing the treated fibre in a shrinking agent and heating the fibre thus treated. The denaturalizing agent may be an aqueous solution of alkali or alkaline earth metal hydroxides, sulphuric acid, hydroxylamine salts or hydrazine. The shrinking treatment comprises either (a) immersing the fibres in an inert (non-solvent) heating medium at above 130‹ C., (b) immersing the fibres in a glycol solution of organic carbamate below 70‹ C. and subsequently heating to above 70‹ C., (c) immersing the fibre in solution (b) at above 70‹ C., or (d) immersing the fibres in a glycol or aqueous solution of the organic carbonate at below 70‹ C. withdrawing the fibres from the solution and squeezing the fibres so that the solution remaining on the fibres is less than 200% of the weight of the fibres and heating the fibres to above 70‹ C. In example 10 a conjugate fibre of acrylonitrile copolymers is spun, drawn, crimped and then treated according to the invention, with a bleaching step between denaturalizing and shrinking. The ridges may resemble a tuck, the edges of which are at an angle of 75 to 105 degrees to the plane of the longitudinal axis of the fibre, said tucks running discontinuously around the fibre circumference. The cross-section of the protuberances may be asymmetrical through a plane through the top of each ridge so that the fibre exhibits a differential frictional effect along its axis i.e. the frictional force required to pull a filament from a parallel bundle is different in both directions along the longitudinal axis of the fibre. The fibres so produced have a hand closely resembling wool and superior anti-pilling properties to wool and show a multicolour effect when treated in a bath of mixed dyes.
GB36949/69A 1968-07-31 1969-07-23 Improvements in or relating to acrylonitrile polymer fibers and process for producing the same Expired GB1281942A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5410368 1968-07-31
JP8743868 1968-11-29

Publications (1)

Publication Number Publication Date
GB1281942A true GB1281942A (en) 1972-07-19

Family

ID=26394843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36949/69A Expired GB1281942A (en) 1968-07-31 1969-07-23 Improvements in or relating to acrylonitrile polymer fibers and process for producing the same

Country Status (4)

Country Link
US (1) US3728072A (en)
DE (1) DE1939015C3 (en)
GB (1) GB1281942A (en)
NL (1) NL6911671A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929946A (en) * 1970-05-15 1975-12-30 Mitsubishi Rayon Co Process for producing hygroscopic acrylic fibers
US3928528A (en) * 1970-05-27 1975-12-23 Mitsubishi Rayon Co Process for producing acrylic fibers having excellent pilling resistance
US3957936A (en) * 1971-07-22 1976-05-18 Raduner & Co., Ag High temperature process for modifying thermoplastic filamentous material
FR2221542B1 (en) * 1973-01-19 1976-04-23 Rhone Poulenc Textile
US4183884A (en) * 1973-01-24 1980-01-15 Ceskoslovenska Akademie Ved Method for manufacturing hydrogel tubes
JPS5920004B2 (en) * 1977-03-23 1984-05-10 日本エクスラン工業株式会社 Carbon fiber manufacturing method
DE2831601C2 (en) * 1977-07-25 1982-12-16 Asahi Kasei Kogyo K.K., Osaka Suede-like artificial leather with a pile cover made of acrylic fibers, as well as processes for the production of the latter
JPS5810508B2 (en) * 1978-04-18 1983-02-25 日本エクスラン工業株式会社 Novel water-swellable fiber with high water-swellability and high physical properties and method for producing the same
JPS5598915A (en) * 1979-01-16 1980-07-28 Japan Exlan Co Ltd Production of fiber swelling with water
US4792489A (en) * 1985-12-27 1988-12-20 Aderans Co., Ltd. Synthetic fibers having uneven surfaces and a method of producing same
US5352518A (en) * 1990-06-22 1994-10-04 Kanebo, Ltd. Composite elastic filament with rough surface, production thereof, and textile structure comprising the same

Also Published As

Publication number Publication date
NL6911671A (en) 1970-02-03
DE1939015A1 (en) 1970-02-12
DE1939015C3 (en) 1974-10-31
DE1939015B2 (en) 1974-03-21
US3728072A (en) 1973-04-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee