GB2236772A - Yarn - Google Patents

Yarn Download PDF

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Publication number
GB2236772A
GB2236772A GB9020744A GB9020744A GB2236772A GB 2236772 A GB2236772 A GB 2236772A GB 9020744 A GB9020744 A GB 9020744A GB 9020744 A GB9020744 A GB 9020744A GB 2236772 A GB2236772 A GB 2236772A
Authority
GB
United Kingdom
Prior art keywords
yarn
fibre
fibres
blend
intimate
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.)
Withdrawn
Application number
GB9020744A
Other versions
GB9020744D0 (en
Inventor
Neil Saville
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.)
UNIVERSAL CARBON FIBRES LIMITE
Original Assignee
UNIVERSAL CARBON FIBRES LIMITE
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 UNIVERSAL CARBON FIBRES LIMITE filed Critical UNIVERSAL CARBON FIBRES LIMITE
Publication of GB9020744D0 publication Critical patent/GB9020744D0/en
Publication of GB2236772A publication Critical patent/GB2236772A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D02G3/047—Blended or other yarns or threads containing components made from different materials including aramid fibres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/08—Heat resistant; Fire retardant
    • A41D31/085—Heat resistant; Fire retardant using layered materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

A yarn comprising an intimate fibre blond of meta aramid fibres, para aramid fibres, and oxidized polyacrylonitrile fibres, can be woven to produce a heat-stable non-contracting fabric with a high resistance to abrasion. For greater heat resistance, the blond can be used as a cover on a silica or silicate yarn.

Description

YARN AND FABRIC This invention relates to fabrics and the manufacture thereof, in particular fabrics resistant to high temperature and to abrasion, and to yarns for the manufacture of such fabrics.
Fabrics resistant to high temperatures and to abrasion are needed in a number of fields of industry, for example for use in conveyor belts, filters, gland packings, and fire resistant clothing.
Various materials are used at present for the manufacture of such fabrics. One known class of materials comprises asbestos and asbestos blends.
However in view of the health risks associated with the use of asbestos, there is a need to find an effective substitute for these.
Fabrics made from meta aramid fibres, from para aramid fibres, or from oxidized polyacrylonitrile fibres, have been used singly to resist abrasion and temperatures up to 700'C, but experience has shown that the wear life of such single-fibre fabrics is inadequate.
An object of the present invention is to provide a fabric resistant to abrasion and high temperatures, which will have a performance superior to and/or will be safer than known materials used for this purpose.
According to the present invention, there is provided a yarn comprising an intimate fibre blend of meta aramid fibres, para aramid fibres, and oxidized polyacrylonitrile fibres.
It has been unexpectedly found that in such a fibre, an advantageous synergistic effect occurs, such that the performance of the fibre when subjected to abrasion and/or high temperatures is superior to that of material composed of any single one of the constituent fibre materials.
More specifically, the described fibre blend can be woven to produce a heat-stable, non-contracting fabric with a high resistance to abrasion.
The present fibre blend is particularly beneficial when woven in a "solid woven" construction, which is associated with looms required to produce conveyor belting.
Preferably, there is provided an intimate fibre blend yarn formed from staple fibre, in preference to continuous filament or core-spun yarns, although the latter can also be used within the scope of the invention.
Preferably, the yarn is formed by worsted spinning, but yarn embodying the invention can be formed by any convenient process, including cotton semi-worsted and woollen spinning systems.
A preferred blend has the following proportions: meta aramid fibre about 40% to 50% para aramid fibre about 20% to 30% oxidized polyacrylonitrile fibre about 20% to 30%.
The present material, comprising a three-way blend of the specified fibres, has exceptional resistance to abrasion and heat at temperatures of 500 C and above.
It is suitable for the manufacture of high temperature conveyors, high temperature filters, gland packings, fire resistant clothing and gloves, and so on.
For temperatures greater than 700 C, and/or constant rather than intermittent exposure to heat, then the present blend can be used advantageously to cover silicate yarns which would be stable up to 750'C, or silica yarns can be covered with the present blend to produce belts or packings suitable for temperatures up to 1000*C.

Claims (6)

Claims
1. A yarn comprising an intimate fibre blend of meta aramid fibres, para aramid fibres, and oxidized polyacrylonitrile fibres.
2. A yarn as claimed in Claim 1 comprising meta aramid fibre about 40% to 50% para aramid fibre about 20% to 30% oxidized polyacrylonitrile fibre about 20% to 30%.
3. A yarn as claimed in Claim 1 or 2 comprising an intimate fibre blend yarn formed from staple fibre.
4. A yarn as claimed in Claim 1, 2 or 3, formed by worsted spinning.
5. A fabric comprising yarn as claimed in any preceding claim woven in a solid woven construction.
6. A composite yarn comprising a silica or silicate yarn, covered with a yarn as claimed in Claim 1, 2, 3 or 4.
GB9020744A 1989-09-25 1990-09-24 Yarn Withdrawn GB2236772A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898921636A GB8921636D0 (en) 1989-09-25 1989-09-25 Fabric

Publications (2)

Publication Number Publication Date
GB9020744D0 GB9020744D0 (en) 1990-11-07
GB2236772A true GB2236772A (en) 1991-04-17

Family

ID=10663593

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898921636A Pending GB8921636D0 (en) 1989-09-25 1989-09-25 Fabric
GB9020744A Withdrawn GB2236772A (en) 1989-09-25 1990-09-24 Yarn

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898921636A Pending GB8921636D0 (en) 1989-09-25 1989-09-25 Fabric

Country Status (1)

Country Link
GB (2) GB8921636D0 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0724848A1 (en) * 1995-02-02 1996-08-07 Friedrich Seiz GmbH & Co. KG Protective glove
WO1998015200A1 (en) * 1996-10-08 1998-04-16 Teijin Limited Protective goods
EP1499762A2 (en) * 2002-04-25 2005-01-26 Chapman Thermal Products, Inc. Fire retardant and heat resistant yarns and fabrics incorporating metallic or other high strength filaments
WO2010006222A1 (en) * 2008-07-11 2010-01-14 E. I. Du Pont De Nemours And Company Crystallized meta-aramid blends for improved flash fire and arc protection
WO2010141549A1 (en) * 2009-06-02 2010-12-09 E. I. Du Pont De Nemours And Company Crystallized meta-aramid blends for improved flash fire and superior arc protection
CN102152544A (en) * 2010-12-06 2011-08-17 吴江飞翔经编纺织有限公司 Thermal radiation resistance and high temperature resistance fabric
EP2438222B1 (en) * 2009-06-02 2013-11-06 E. I. du Pont de Nemours and Company Antimony-free modacrylic / aramid blends for improved flash fire and arc protection
US9630031B2 (en) 2006-03-29 2017-04-25 Chapman Thermal Products, Inc. Lightweight protective fabrics and clothing for protection against hot or corrosive materials
CN111270380A (en) * 2020-04-27 2020-06-12 盐城工业职业技术学院 Production method of flame-retardant high-temperature-resistant pre-oxidized silk aramid blended yarn

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2088427A (en) * 1980-12-01 1982-06-09 Norfab Corp Heat resistant yarn and fabric

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2088427A (en) * 1980-12-01 1982-06-09 Norfab Corp Heat resistant yarn and fabric

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0724848A1 (en) * 1995-02-02 1996-08-07 Friedrich Seiz GmbH & Co. KG Protective glove
WO1998015200A1 (en) * 1996-10-08 1998-04-16 Teijin Limited Protective goods
US5935882A (en) * 1996-10-08 1999-08-10 Teijin Limited Protective goods
EP1499762A2 (en) * 2002-04-25 2005-01-26 Chapman Thermal Products, Inc. Fire retardant and heat resistant yarns and fabrics incorporating metallic or other high strength filaments
EP1499762A4 (en) * 2002-04-25 2010-10-06 Chapman Thermal Products Inc Fire retardant and heat resistant yarns and fabrics incorporating metallic or other high strength filaments
US9630031B2 (en) 2006-03-29 2017-04-25 Chapman Thermal Products, Inc. Lightweight protective fabrics and clothing for protection against hot or corrosive materials
CN102124152B (en) * 2008-07-11 2013-06-19 纳幕尔杜邦公司 Crystallized meta-aramid blends for improved flash fire and arc protection
WO2010006222A1 (en) * 2008-07-11 2010-01-14 E. I. Du Pont De Nemours And Company Crystallized meta-aramid blends for improved flash fire and arc protection
KR101605925B1 (en) * 2008-07-11 2016-03-23 이 아이 듀폰 디 네모아 앤드 캄파니 Crystallized meta-aramid blends for improved flash fire and arc protection
KR20120031480A (en) * 2009-06-02 2012-04-03 이 아이 듀폰 디 네모아 앤드 캄파니 Crystallized meta-aramid blends for improved flash fire and superior arc protection
CN102449214A (en) * 2009-06-02 2012-05-09 纳幕尔杜邦公司 Crystallized meta-aramid blends for improved flash fire and superior arc protection
EP2438222B1 (en) * 2009-06-02 2013-11-06 E. I. du Pont de Nemours and Company Antimony-free modacrylic / aramid blends for improved flash fire and arc protection
CN102449214B (en) * 2009-06-02 2015-10-07 纳幕尔杜邦公司 For the crystalline form meta-aramid blend of the anti-deflagration that improves and excellent arc resistance
KR101722795B1 (en) 2009-06-02 2017-04-05 이 아이 듀폰 디 네모아 앤드 캄파니 Crystallized meta-aramid blends for improved flash fire and superior arc protection
WO2010141549A1 (en) * 2009-06-02 2010-12-09 E. I. Du Pont De Nemours And Company Crystallized meta-aramid blends for improved flash fire and superior arc protection
CN102152544A (en) * 2010-12-06 2011-08-17 吴江飞翔经编纺织有限公司 Thermal radiation resistance and high temperature resistance fabric
CN111270380A (en) * 2020-04-27 2020-06-12 盐城工业职业技术学院 Production method of flame-retardant high-temperature-resistant pre-oxidized silk aramid blended yarn

Also Published As

Publication number Publication date
GB9020744D0 (en) 1990-11-07
GB8921636D0 (en) 1989-11-08

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)