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Flame retardant fiber blends comprising modacrylic fibers and fabrics and garments made therefrom

A flame-retardant fabric, acrylic technology, applied in textiles and paper, transportation and packaging, yarn, etc., can solve the problems of durability and thermal performance degradation

Inactive Publication Date: 2006-09-06
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such blends often result in reduced durability and thermal performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 is a fabric of the invention comprising an intimate blend of the invention as both warp and fill yarns. Example 2 is a fabric of the present invention comprising an intimate blend of the present invention as warp yarns, and an intimate blend of aramid and modacrylic fibers as fill yarns. Comparative Example A, which is not a fabric of the present invention, comprises an intimate blend of aramid and modacrylic fibers as both warp and fill yarns, without nylon. A more detailed description of these examples follows, followed by test results for each example.

[0036] Example 1. Use contains Nomex  Ring-spun warp and weft yarns of an intricate blend of Type 462 modacrylic and nylon create a comfortable and durable fabric. Nomex  Type 462 is 93% poly-phenylene isophthalamide (MPD-I), 5% poly-para-phenylene terephthalamide (PPD-T) and 2% static dissipative fibers (Type P-140, Available from E.I. DuPont deNemours of Wilmington, Delaware). The modacrylic fiber...

Embodiment 2

[0040] A comfortable and durable fabric comprising ring spun warp yarns and ring spun weft yarns produced by Nomex  Type 462, an intricate blend of modacrylic and nylon, and the weft yarns are made of Nomex  Manufactured from an intricate blend of Type 462 and modacrylic fibers.

[0041] Nomex  Type 462 is 93% poly-phenylene isophthalamide (MPD-I), 5% poly-para-phenylene terephthalamide (PPD-T) and 2% static dissipative fibers (Type P-140, Available from E.I. DuPont de Nemours of Wilmington, Delaware). In this example, the modacrylic fiber is ACN / polyvinylidene chloride copolymer (available under the trademark Protex  was purchased from Kaneka Corporation, Osaka, Japan), and the nylon used was polyhexamethylene adipamide.

[0042] Made 35 weight percent Nomex  Type 462, 50% by weight of modified acrylic fiber and 15% by weight of nylon, the cotton blended yarn sliver is processed into a spun yarn with a twist coefficient of 3.7 by means of a common cotton spinning sy...

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PUM

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Abstract

An intimate blend of staple fibers has from 10 to 75 parts by weight of at least one aramid staple fiber, from 15 to 80 parts by weight of at least one modacrylic staple fiber, and from 5 to 30 parts by weight of at least one polyamide staple fiber. The intimate blend of staple fibers provides yarns and fabrics that are flame retardant, also referred to as fire resistant, and can be used to make flame retardant articles, such as clothing. The flame retardant fabrics may have a basis weight from 4 to 15 ounces per square yard.

Description

Background technique [0001] There is a continuing need for flame-resistant, also known as fire-resistant, fabrics that can be used in the manufacture of clothing suitable for persons working near flames, high temperatures, or arc flashes. In addition to having excellent thermal properties, an effective flame retardant fabric should be durable, comfortable, and should be able to be produced at low cost. [0002] While fabrics made from fibers that are inherently flame resistant have been well suited for use in protective apparel, certain characteristics of these fibers are problematic. For example, these fibers can be difficult to dye, have an uncomfortable weave, and are expensive. To address these issues, fibers that are inherently flame resistant have been blended with fibers made from other materials. Fiber blends can be used to produce purpose fabrics that combine the beneficial characteristics of each of the constituent fibers. However, such blends often result in redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/04D02G3/44
CPCD10B2331/021D02G3/047D10B2321/101D10B2331/02D02G3/443Y10T428/2913D02G3/04D02G3/44
Inventor R·朱
Owner EI DU PONT DE NEMOURS & CO