Cutting-resisting yarn

A yarn and core yarn technology, applied in the field of cut-resistant yarn, can solve the problems of difficult to achieve high-density weaving, poor looping effect, high linear density, etc., and achieve light weight, improved cut resistance, aramid fiber The effect of high modulus

Inactive Publication Date: 2008-08-06
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this yarn is that the linear density is high, the looping effect is not good during the knitting process, and it is difficult to achieve high-density weaving
Within the scope of the applicant's search, there is no report identical with the following technical content of the present invention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The high-strength polyethylene untwisted filament with a measured value of 1125 denier is the core yarn 2, and its breaking strength is 16 grams per denier; the aramid fiber twisted filament with a measured value of 264.4 denier is the outer covering yarn 1, and the twist is 24 twists per denier. 10 cm, the breaking strength is 18 g / denier; the volume ratio of the core yarn 2 and the outer covering yarn 1 is 0.25, adopting a forming device (two-dimensional knitting machine) with 8 yarn carriers 4 and a two-dimensional knitting machine with a braiding angle of 45°. The cut-resistant yarn 3 is produced by weaving through the dimensional weaving forming method.

[0032] After testing, the formed cut-resistant yarn (see accompanying drawings 1 and 2) has good cut resistance or cut resistance (see curve 2 in Figure 5), and its short-cut short-crack strength has reached 30cN / Tex .

Embodiment 2

[0034] The high-strength polyethylene untwisted filament with a measured value of 1125 denier is the core yarn 2, and its breaking strength is 16 g / denier; the aramid fiber twisted filament with a measured value of 1420 denier is the outer covering yarn 1, and the twist is 21 twists per denier. 10 cm, the breaking strength is 17 g / denier, the volume ratio of the core yarn 2 and the outer covering yarn 1 is 0.1, and a two-dimensional knitting machine with eight yarn carriers 4 is used for two-dimensional knitting, and the knitting angle is 45°.

[0035] After testing, the formed cut-resistant yarn (see accompanying drawings 1 and 2) has good cutting resistance or cutting resistance (see curve 1 in Figure 7), and its cutting-resistant breaking strength reaches 22cN / Tex.

[0036] Table 1 Specification list of raw materials used in cut-resistant yarn research experiments

[0037] series

code name

raw material

Linear density (denier)

Twist ...

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Abstract

The invention relates to cutting-proof yarn, which is characterized in that the cutting-proof yarn is skin-core composite yarn which is manufacturing through adopting a two-dimensional weaving and molding method, core-spun yarn of the cutting-proof yarn is high strength polyethylene fiber non-twist filament, the fineness is 400-1200 deniers, epiboly yarn of the cutting-proof yarn is aramid fiber filament soft twist yarn, the twisting tension is smaller than or equal to 25twist/10 centimeter, the fineness is 150-200 deniers, the volume ratio between the core-spun yarn and the epiboly yarn is 0.05-0.5, a two-dimensional weaving and molding method whose braided angle is alpha is adopted to coat the epiboly yarn outside the core-spun yarn evenly, the braided angle alpha is 15-45 degrees, the yarn carriers number of yarn carriers of knitting machine which are used in the two-dimensional weaving and molding method is an even number between 8-16. The cutting-proof yarn of the invention has good cutting resistant property.

Description

technical field [0001] The invention relates to functional yarn technology, specifically a cut-resistant yarn made of high-strength and high-modulus polyethylene filament as a core yarn and aramid filament as an outer covering yarn through two-dimensional weaving. Background technique [0002] After the "9.11" incident in the United States, personal protective materials have been developed rapidly, and research on various bulletproof materials, stab-resistant and cut-resistant materials has attracted widespread attention. In our country, the control of firearms is very strict. Relatively speaking, the threat from firearms is far less than the threat from knives and stabs. Therefore, the research and development of anti-cut and anti-stab products has more important significance. [0003] At present, commercially produced cut-resistant yarns are mostly made of a single material, and the fiber raw materials mainly include aramid fibers, high-strength polyethylene fibers, nylon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04C1/12D02G3/36D02G3/44
Inventor 姜亚明毕蕊刘梁森
Owner TIANJIN POLYTECHNIC UNIV
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