EP0237451A1 - Fibrous material based on aramide fibres with an improved strength - Google Patents

Fibrous material based on aramide fibres with an improved strength Download PDF

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Publication number
EP0237451A1
EP0237451A1 EP87420063A EP87420063A EP0237451A1 EP 0237451 A1 EP0237451 A1 EP 0237451A1 EP 87420063 A EP87420063 A EP 87420063A EP 87420063 A EP87420063 A EP 87420063A EP 0237451 A1 EP0237451 A1 EP 0237451A1
Authority
EP
European Patent Office
Prior art keywords
fibrous material
fibers
aramid fibers
material according
modulus aramid
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Withdrawn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
EP87420063A
Other languages
German (de)
French (fr)
Inventor
Jean Guevel
Marc Francois
Guy Bontemps
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.)
"sa Schappe" SA
Schappe SA
Original Assignee
"sa Schappe" SA
Schappe SA
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 "sa Schappe" SA, Schappe SA filed Critical "sa Schappe" SA
Publication of EP0237451A1 publication Critical patent/EP0237451A1/en
Withdrawn legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • the present invention relates to a fibrous material based on aramid fibers, with improved resistance.
  • Aramid fibers are fibers based on aromatic polyamide which are widely used in technical fields where high mechanical and thermal performance is sought.
  • a suitable use for these fibers is in the field of protective clothing against thermal attack.
  • the Applicant has discovered that it is possible to dramatically reinforce the mechanical properties of low modulus aramid fiber yarns, if a relatively small amount is added to them, being above 20% and, preferably , between 20 and 25%, of high modulus aramid fibers.
  • part of the low modulus aramid fibers is replaced by viscose fibers called "flame retardant viscose", which further widens the field of application of the mixture according to the invention to garments of protection against thermal attack.
  • the fibrous material comprises approximately 47% of low modulus aramid fibers, approximately 30% of fireproof viscose fibers and approximately 23% of high modulus aramid fibers.
  • Aramid fibers whether high modulus aramid fibers or low modulus aramid fibers, are advantageously obtained by cracking filaments at an average height of 110 mm.
  • This transformation of the continuous filaments is carried out according to a cracking process by controlled stretching and breaking; it is carried out on multifilament cables of unitary fibers, the titer of which is between 0.8 and 6 dtex. Long fibers are thus obtained, which makes it possible to spin a very wide range of titles between 1/1 (1000tex) and 200/1 (5tex).
  • the intimate mixing of the fibers thus obtained, to which the flame retardant viscose is optionally added in the form of 80 mm cut fibers, is carried out by any process known per se, upstream of the preparation.
  • Complementary finishing operations such as twisting or wiring, are then carried out on the products obtained.

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

Abstract

The fibrous material consists essentially of a mixture of low-modulus aramid fibres and of high-modulus aramid fibres, with a high-modulus aramid fibre content of between 20 and 25% of the total weight of the mixture. A proportion of the low-modulus aramid fibres is optionally replaced with fire-resistant viscose fibres. Application of this fibrous material to the production of clothing for protection against heat attack.

Description

La présente invention concerne une matière fibreuse à base de fibres d'aramide, à résistance améliorée.The present invention relates to a fibrous material based on aramid fibers, with improved resistance.

Les fibres d'aramide sont des fibres à base de polyamide aromatique qui sont très utilisées dans les domaines techniques où l'on recherche des performances mécaniques et thermiques élevées.Aramid fibers are fibers based on aromatic polyamide which are widely used in technical fields where high mechanical and thermal performance is sought.

Un emploi tout indiqué pour ces fibres est le domaine des vêtements de protection contre les agressions thermiques.A suitable use for these fibers is in the field of protective clothing against thermal attack.

Or, on sait que l'ensemble des fibres aramides peut être classé en deux catégories :

  • - les fibres dites haut module, à hautes performances mécaniques et thermiques ;
  • - les fibres dites bas module, présentant de bonnes performances thermiques et bénéficiant d'un excellent toucher textile ; malheureusement, leur résistance mécanique est faible, et elles présentent, de plus, une mauvaise résistance à l'abrasion.
However, we know that all aramid fibers can be classified into two categories:
  • - so-called high modulus fibers, with high mechanical and thermal performance;
  • - the so-called low modulus fibers, having good thermal performance and benefiting from an excellent textile feel; unfortunately, their mechanical strength is low, and they also have poor abrasion resistance.

Les fibres dites de haut module sembleraient donc plus désignées pour la réalisation de vêtements de protection ; malheureusement, quand elles sont employées seules, elles ne permettent pas d'obtenir un confort au porter satisfaisant ; d'autre part, elles ne présentent pas d'affinité pour les colorants et, de ce fait, leur aspect ne peut être modifié par teinture.So-called high modulus fibers would therefore seem more suitable for the production of protective clothing; unfortunately, when used alone, they do not provide satisfactory wearing comfort; on the other hand, they have no affinity for dyes and, therefore, their appearance cannot be modified by dyeing.

La Demanderesse a découvert qu'il était possible de renforcer, de façon spectaculaire, les propriétés mécaniques des filés de fibres d'aramide bas module, si on leur adjoignait une quantité relativement faible, se situant au-dessus de 20 % et, de préférence, entre 20 et 25 %, de fibres d'aramide haut module.The Applicant has discovered that it is possible to dramatically reinforce the mechanical properties of low modulus aramid fiber yarns, if a relatively small amount is added to them, being above 20% and, preferably , between 20 and 25%, of high modulus aramid fibers.

L'augmentation de la résistance des filés obtenus à partir de ce mélange de fibres est tout à fait surprenante, puisqu'elle atteint et dépasse même 40 % par rapport à la résistance des filés de fibres aramide bas module employés seuls.The increase in the resistance of yarns obtained from this mixture of fibers is quite surprising, since it reaches and even exceeds 40% compared to the resistance of yarns of low modulus aramid fibers used alone.

Selon un autre mode de réalisation de l'invention, on remplace une partie des fibres aramide bas module par des fibres de viscose dite "viscose non feu", ce qui élargit encore le domaine d'application du mélange selon l'invention aux vêtements de protection contre les agressions thermiques.According to another embodiment of the invention, part of the low modulus aramid fibers is replaced by viscose fibers called "flame retardant viscose", which further widens the field of application of the mixture according to the invention to garments of protection against thermal attack.

La matière fibreuse comporte environ 47 % de fibres d'aramide bas module, environ 30 % de fibres de viscose non feu et environ 23% de fibres d'aramide haut module.The fibrous material comprises approximately 47% of low modulus aramid fibers, approximately 30% of fireproof viscose fibers and approximately 23% of high modulus aramid fibers.

Les fibres d'aramide, qu'il s'agisse de fibres d'aramide haut module ou de fibres d'aramide bas module, sont avantageusement obtenues par craquage de filaments à une hauteur moyenne de 110 mm.Aramid fibers, whether high modulus aramid fibers or low modulus aramid fibers, are advantageously obtained by cracking filaments at an average height of 110 mm.

Cette transformation des filaments continus s'effectue selon un procédé de craquage par étirage et rupture contrôlée ; elle est effectuée sur des câbles de multifilaments de fibres unitaires, dont le titre se situe entre 0,8 et 6 dtex. On obtient ainsi des fibres longues, ce qui permet de filer une très large gamme de titres entre 1/1 (1000tex) et 200/1 (5tex).This transformation of the continuous filaments is carried out according to a cracking process by controlled stretching and breaking; it is carried out on multifilament cables of unitary fibers, the titer of which is between 0.8 and 6 dtex. Long fibers are thus obtained, which makes it possible to spin a very wide range of titles between 1/1 (1000tex) and 200/1 (5tex).

Le mélange intime des fibres ainsi obtenues, auxquelles on rajoute éventuellement la viscose non feu sous forme de fibres coupées de 80 mm, s'effectue par tout procédé connu en soi, en amont de la préparation.The intimate mixing of the fibers thus obtained, to which the flame retardant viscose is optionally added in the form of 80 mm cut fibers, is carried out by any process known per se, upstream of the preparation.

Les opérations complémentaires de finition, telles que le retordage ou le câblage, sont ensuite effectuées sur les produits obtenus.Complementary finishing operations, such as twisting or wiring, are then carried out on the products obtained.

On dispose ainsi d'une matière fibreuse extrêmement intéressante, puisqu'elle présente les principaux avantages des fibres d'aramide bas module, parmi lesquels on peut citer le confort au porter et l'aptitude à la teinture, des propriétés de résistance améliorée, et ceci tout en conservant les excellentes propriétés de résistance aux expositions thermiques, ainsi qu'à certains produits chimiques, ce qui la rend tout à fait adaptée à la réalisation de vêtements de protection contre les agressions thermiques.This provides an extremely advantageous fibrous material, since it has the main advantages of low modulus aramid fibers, among which may be mentioned the wearing comfort and the dyeing ability, improved resistance properties, and this while retaining the excellent properties of resistance to thermal exposures, as well as to certain chemicals, which makes it quite suitable for the production of protective clothing against thermal aggressions.

Claims (7)

1- Matière fibreuse à base de fibres d'aramide, caractérisée en ce qu'elle est essentiellement constituée d'un mélange de fibres d'aramide bas module et de fibres d'aramide haut module, avec une teneur en fibres aramide haut module se situant entre 20 et 25 % du poids total du mélange.1- Fibrous material based on aramid fibers, characterized in that it essentially consists of a mixture of low modulus aramid fibers and high modulus aramid fibers, with a high modulus aramid fiber content between 20 and 25% of the total weight of the mixture. 2- Matière fibreuse selon la revendication 1, caractérisée en ce qu'une partie des fibres aramide bas module est remplacée par des fibres de viscose non feu.2- fibrous material according to claim 1, characterized in that a part of the low modulus aramid fibers is replaced by non-flammable viscose fibers. 3- Matière fibreuse selon la revendication 2, caractérisée en ce qu'elle comporte environ 47 % de fibres d'aramide bas module, environ 30 % de fibres de viscose non feu et environ 23 % de fibres d'aramide haut module.3- fibrous material according to claim 2, characterized in that it comprises approximately 47% of low modulus aramid fibers, approximately 30% of fireproof viscose fibers and approximately 23% of high modulus aramid fibers. 4- Matière fibreuse selon l'une des revendications 1 à 3, caractérisée en ce que les fibres d'aramide sont obtenues par craquage de filaments à une hauteur moyenne de fibres de 110 mm.4- fibrous material according to one of claims 1 to 3, characterized in that the aramid fibers are obtained by cracking filaments at an average height of fibers of 110 mm. 5- Matière fibreuse selon l'une des revendications 1 à 3, caractérisée en ce que la viscose non feu se présente sous forme de fibres coupées d'environ 80 mm.5- fibrous material according to one of claims 1 to 3, characterized in that the flame retardant viscose is in the form of cut fibers of about 80 mm. 6- Matière fibreuse selon l'une des revendications 1 à 5, caractérisée en ce que le mélange intime est réalisé en amont de la préparation.6- fibrous material according to one of claims 1 to 5, characterized in that the intimate mixing is carried out upstream of the preparation. 7- Application de la matière fibreuse selon l'une quelconque des revendications 1 à 6 à la réalisation de vêtements de protection contre les agressions thermiques.7- Application of the fibrous material according to any one of claims 1 to 6 to the production of protective clothing against thermal attack.
EP87420063A 1986-03-11 1987-03-04 Fibrous material based on aramide fibres with an improved strength Withdrawn EP0237451A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8603859 1986-03-11
FR8603859A FR2595724B1 (en) 1986-03-11 1986-03-11 FIBROUS MATERIAL BASED ON ARAMID FIBERS WITH IMPROVED RESISTANCE

Publications (1)

Publication Number Publication Date
EP0237451A1 true EP0237451A1 (en) 1987-09-16

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EP87420063A Withdrawn EP0237451A1 (en) 1986-03-11 1987-03-04 Fibrous material based on aramide fibres with an improved strength

Country Status (3)

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EP (1) EP0237451A1 (en)
JP (1) JPS62223354A (en)
FR (1) FR2595724B1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330163A2 (en) * 1988-02-26 1989-08-30 Teijin Limited Flame resistant staple fiber blend
EP0412195A1 (en) * 1989-08-10 1991-02-13 E.I. Du Pont De Nemours And Company Blend of cotton,nylon and heat-resistant fibers
EP0412196A1 (en) * 1989-04-28 1991-02-13 E.I. Du Pont De Nemours And Company Comfortable fabrics of high durability
FR2654751A1 (en) * 1989-11-22 1991-05-24 Rousset Joseph NEW MATERIAL IN PARTICULAR FOR USE AS A FIRE-RESISTANT.
FR2691721A1 (en) * 1992-05-27 1993-12-03 Rhone Poulenc Fibres Textile articles with good mechanical properties.
FR2702382A1 (en) * 1993-03-11 1994-09-16 Marcanada Inc Textile material for outer casing of firefighters clothing.
WO2005017244A1 (en) * 2003-08-06 2005-02-24 E.I. Dupont De Nemours And Company Lightweight protective apparel
ES2289907A1 (en) * 2005-12-05 2008-02-01 Jorge Albero Pascual, S.L. Weave for inner or outer tapestry, is joined mechanically by punched operation like needles with harpoons or by spunlace operation like water stream, which are able to act with single layer like average retarder of fire in tapestries
WO2008045459A1 (en) * 2006-10-10 2008-04-17 E. I. Du Pont De Nemours And Company Multidenier fiber cut resistant fabrics and articles and processes for making same
US8209785B2 (en) 2010-02-09 2012-07-03 International Textile Group, Inc. Flame resistant fabric made from a fiber blend
US8793814B1 (en) 2010-02-09 2014-08-05 International Textile Group, Inc. Flame resistant fabric made from a fiber blend
US8932965B1 (en) 2008-07-30 2015-01-13 International Textile Group, Inc. Camouflage pattern with extended infrared reflectance separation
US10433593B1 (en) 2009-08-21 2019-10-08 Elevate Textiles, Inc. Flame resistant fabric and garment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202086A (en) * 1992-06-16 1993-04-13 E. I. Du Pont De Nemours And Company Aramid fabric for garments of improved comfort
US7214425B2 (en) 2005-02-10 2007-05-08 Supreme Elastic Corporation High performance fiber blend and products made therefrom

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763644A (en) * 1972-05-09 1973-10-09 Eastman Kodak Co Flame retardant textiles
GB2011502A (en) * 1977-11-29 1979-07-11 Newsome & Sons Ltd Joseph Mixed-Fibre Yarn and Fabric
EP0050854A1 (en) * 1980-10-27 1982-05-05 Hitachi, Ltd. Composite fibrous product
DE3115786A1 (en) * 1981-04-18 1982-11-11 Verseidag-Industrietextilien Gmbh, 4150 Krefeld Self-extinguishing textile sheet material and manufacture thereof
DE3307449A1 (en) * 1982-03-15 1983-09-22 Taunus Textildruck Zimmer GmbH & Co KG, 6370 Oberursel Flame-retardant textile fabric made from two or more chemical fibres

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763644A (en) * 1972-05-09 1973-10-09 Eastman Kodak Co Flame retardant textiles
GB2011502A (en) * 1977-11-29 1979-07-11 Newsome & Sons Ltd Joseph Mixed-Fibre Yarn and Fabric
EP0050854A1 (en) * 1980-10-27 1982-05-05 Hitachi, Ltd. Composite fibrous product
DE3115786A1 (en) * 1981-04-18 1982-11-11 Verseidag-Industrietextilien Gmbh, 4150 Krefeld Self-extinguishing textile sheet material and manufacture thereof
DE3307449A1 (en) * 1982-03-15 1983-09-22 Taunus Textildruck Zimmer GmbH & Co KG, 6370 Oberursel Flame-retardant textile fabric made from two or more chemical fibres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MELLIAND TEXTILBERICHTE - INTERNATIONAL TEXTILE REPORTS, vol. 65, no. 8, août 1984, page 510, Würzburg, DE; "Non-flammable aramid fibres for protective clothing" *

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330163A2 (en) * 1988-02-26 1989-08-30 Teijin Limited Flame resistant staple fiber blend
EP0330163A3 (en) * 1988-02-26 1990-05-30 Teijin Limited Flame resistant staple fiber blend
EP0412196A1 (en) * 1989-04-28 1991-02-13 E.I. Du Pont De Nemours And Company Comfortable fabrics of high durability
EP0412195A1 (en) * 1989-08-10 1991-02-13 E.I. Du Pont De Nemours And Company Blend of cotton,nylon and heat-resistant fibers
FR2654751A1 (en) * 1989-11-22 1991-05-24 Rousset Joseph NEW MATERIAL IN PARTICULAR FOR USE AS A FIRE-RESISTANT.
EP0432003A1 (en) * 1989-11-22 1991-06-12 Didier Royaerts New material specially intended for use as a fire-break
FR2691721A1 (en) * 1992-05-27 1993-12-03 Rhone Poulenc Fibres Textile articles with good mechanical properties.
WO1993024690A1 (en) * 1992-05-27 1993-12-09 Rhone Poulenc Fibres Textile articles having excellent mechanical properties
FR2702382A1 (en) * 1993-03-11 1994-09-16 Marcanada Inc Textile material for outer casing of firefighters clothing.
US7156883B2 (en) 2003-08-06 2007-01-02 E. I. Du Pont De Nemours And Company Lightweight protective apparel
WO2005017244A1 (en) * 2003-08-06 2005-02-24 E.I. Dupont De Nemours And Company Lightweight protective apparel
ES2289907A1 (en) * 2005-12-05 2008-02-01 Jorge Albero Pascual, S.L. Weave for inner or outer tapestry, is joined mechanically by punched operation like needles with harpoons or by spunlace operation like water stream, which are able to act with single layer like average retarder of fire in tapestries
WO2008045459A1 (en) * 2006-10-10 2008-04-17 E. I. Du Pont De Nemours And Company Multidenier fiber cut resistant fabrics and articles and processes for making same
US7767599B2 (en) 2006-10-10 2010-08-03 E.I. Du Pont De Nemours And Company Multidenier fiber cut resistant fabrics and articles
CN101522066B (en) * 2006-10-10 2011-07-06 纳幕尔杜邦公司 Multidenier fiber cut resistant fabrics and articles and processes for making
US8932965B1 (en) 2008-07-30 2015-01-13 International Textile Group, Inc. Camouflage pattern with extended infrared reflectance separation
US10288385B2 (en) 2008-07-30 2019-05-14 International Textile Group, Inc. Camouflage pattern with extended infrared reflectance separation
US10433593B1 (en) 2009-08-21 2019-10-08 Elevate Textiles, Inc. Flame resistant fabric and garment
US8209785B2 (en) 2010-02-09 2012-07-03 International Textile Group, Inc. Flame resistant fabric made from a fiber blend
US8528120B2 (en) 2010-02-09 2013-09-10 International Textile Group, Inc. Flame resistant fabric made from a fiber blend
US8793814B1 (en) 2010-02-09 2014-08-05 International Textile Group, Inc. Flame resistant fabric made from a fiber blend

Also Published As

Publication number Publication date
FR2595724A1 (en) 1987-09-18
JPS62223354A (en) 1987-10-01
FR2595724B1 (en) 1988-06-10

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