Stainless steel yarn and protective fabric

Inactive Publication Date: 2001-10-30
USF FILTRATION & SEPARATIONS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

It is an object of the present invention to provide metallic yarns with high levels of cut resistance and electrical conductivity in a form subst

Problems solved by technology

Wires are generally prohibitively difficult to work with, and are prone to breakage when worked and work hardened.
Metallic wires are not particularly durable when exposed to abrasion, and numerous breaks occur during spinning, knitting, and in use.
) While these materials have met with some success, the level of cut resistance attained, and the bulk of fibers and yarns required, remain problems for users.
Such composites afford overall better properties, but the limitations of both metallic and synthetic polymers are still present to some degree.
Wire and wire cored metallic yarns are quite difficult to knit or otherwise fabri

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Stainless steel yarn and protective fabric
  • Stainless steel yarn and protective fabric

Examples

Experimental program
Comparison scheme
Effect test

example 1

A multi-filament metallic yarn (2) was made up of 91 ends of Type 304 Stainless fibers (3) having a diameter of 12 .mu.m. The metallic yarn was substantially free of twist.

The metallic core yarn was served with two plies (4) and (5), in opposite orientation, of a 70 denier Nylon polyamide multi-filament yarn by wrapping on an elastic wrapping machine.

One kilogram of the composite yarn (1) had a length of 6,791 meters. The yarn had a tensile breaking strength of 5.56 pounds and an elongation at break of 1.20%.

The composite yarn was knit into a glove (10) on an industry standard knitting machine. The entire glove, including palm (12) and the finger stalls (14) and thumb stall (16), and except for the cuff potion (18), was formed of plain stitch, while the cuff was a ribbed knit. The knit fabric of the glove in the palm region (12) and in one of the finger stalls (14) is tested by the normal Betatec technique. The cut resistance is about 100 times or more higher than comparable knits o...

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Abstract

Cut resistant, abrasion resistant and electrically conductive yarns (1) are formed in torque-free form from stainless steel and other metallic yarns (2) served with or formed into composite twists with non-metallic yarns and fibers (4) and (5). The metallic yarn (2) is made up of at least about 60 ends, and up to as many as about 300 ends, of metal fibers (3) having a diameter of from about 2 to about 25 mum. The absence of torque permits facile knitting into protective garments, such as cut resistant, abrasion resistant and/or electrically conductive gloves (10), or yarns which are as much as 85 to 90% by weight metallic fiber. When knit into gloves, added protection may be provided from puncture injuries if the palm (12), finger stalls (14) and thumb stall (16) are coated or impregnated with an elastomer or the like.

Description

BACKGROUNDThis invention relates to the technical field of stainless steel cut resistant, abrasion resistant and electrically conductive yarn, suitable for making fabrics and particularly knitting fabrics and garments, and to protective garments, such as cut resistant, abrasion resistant and / or electrically conductive gloves, aprons, smocks, jackets, trousers, leggings, socks or stockings, and the like, as well as protective fabric structures of all kinds, such as drapes and the like.Cut resistance is important in a wide variety of industries, as lacerations are one of the greatest causes of industrial accidents. Notable are the meat cutting and butchering workers, machinists, carpenters and joiners, assembly line workers, and the like.Abrasion resistance is comparably important in a variety of industrial contexts; also of significance is the incidence of abrasive exposure among athletes, particularly those performing on artificial turf and other harsh environments.Electrical conduc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): A41D19/015A41D31/00D02G3/38D02G3/12D02G3/44D02G3/26A41D19/00B32B3/00D04B1/28
CPCA41D19/01511A41D31/0066D02G3/12D02G3/26D02G3/38D02G3/442D04B1/28A41D31/0055Y10T428/294Y10T428/2964Y10T428/2938Y10T428/2925Y10T428/298Y10T428/29Y10T428/2936Y10T428/2929A41D31/24A41D31/26Y10T428/249922Y10T442/419Y10T442/475Y10T442/2418Y10T442/339Y10T442/3545Y10T442/655
Inventor TOON, JOHN J.
Owner USF FILTRATION & SEPARATIONS GROUP
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