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Method for preparing stab-resistant fabric

A fabric and acupuncture technology, which is applied in protective equipment, offensive equipment, personnel protection equipment, etc., can solve problems such as poor stab resistance, poor toughness of PE fibers, and poor fluidity of colloids.

Inactive Publication Date: 2011-07-06
杨珍芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the toughness of PE fibers is poor, which affects the stab-proof performance of the stab-resistant fabric; the concentration of the adhesive in the adhesive liquid used is too large, the fluidity of the colloid is poor, and the colloid is unevenly distributed in the non-woven fabric. As a result, the uniformity of the anti-stab performance of the anti-stab fabric is not good, and the anti-stab performance in each direction is poor

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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  • Method for preparing stab-resistant fabric
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  • Method for preparing stab-resistant fabric

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preparation example Construction

[0035] The embodiment of the present invention discloses a preparation method of a stab-resistant fabric, comprising:

[0036] Cut long fibers with strength ≥ 25cN / detx into short fibers of 50mm ~ 100mm;

[0037] Opening and carding the short fibers;

[0038] Overlapping the carded short fibers;

[0039] Needle-punching the fiber web after laying to make non-woven fabric;

[0040] Glue the non-woven fabric with an adhesive with a concentration of 6wt% to 15wt%, and the adhesive includes: 5wt% to 12wt% polystyrene elastomer, 1wt% to 3wt% tackifying resin and the rest The content of the solvent and the adhesive in the non-woven fabric is 5wt%-15wt%.

[0041] The glued non-woven fabric is dried and then hot-pressed, and the hot-pressing temperature is 80° C. to 150° C. and the pressure is 15 MPa to 30 MPa.

[0042] According to the present invention, the long fibers with strength ≥ 25 cN / detx are preferably ultra-high molecular weight polyethylene fibers, polybenzazole fibers...

Embodiment 1

[0076] 1. Preparation of ultra-high molecular weight polyethylene staple fiber

[0077] 1a. Place the 400-denier RYX90 ultra-high molecular weight polyethylene fiber produced by Ningbo Rongyi Chemical Fiber Technology Co., Ltd. on the creel 11. The spindles on the creel pass through the cluster frame 12 and then gather into bundles. After passing through the electrostatic generating device 13, they enter Static elimination device 14, eliminates static electricity.

[0078] 1b. The uniformly spread ultra-high molecular weight polyethylene fibers are preheated at a temperature of 50° C. through a hot shaft.

[0079] 1c. Curl.

[0080] 1d. The crimped ultra-high molecular weight polyethylene staple fiber passes through the first-stage drying chamber 1, the second-stage drying chamber 2, and the third-stage drying chamber 3 in sequence. In the first drying chamber, the direction of the hot air is controlled to blow from the bottom of the fiber to the top , the drying temperature...

Embodiment 2

[0096] 1. Preparation of ultra-high molecular weight polyethylene staple fiber

[0097] 1a. Place the 400-denier RYX90 ultra-high molecular weight polyethylene fiber produced by Ningbo Rongyi Chemical Fiber Technology Co., Ltd. on the creel 11. The spindles on the creel pass through the cluster frame 12 and then gather into bundles. After passing through the electrostatic generating device 13, they enter Static elimination device 14, eliminates static electricity.

[0098] 1b. The uniformly spread ultra-high molecular weight polyethylene fibers are preheated at a temperature of 56° C. through a hot shaft.

[0099] 1c. Curl.

[0100] 1d. The crimped ultra-high molecular weight polyethylene staple fiber passes through the first-stage drying chamber 1, the second-stage drying chamber 2, and the third-stage drying chamber 3 in sequence. In the first drying chamber, the direction of the hot air is controlled to blow from the bottom of the fiber to the top , the drying temperature...

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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Abstract

The invention provides a method for preparing a stab-resistant fabric, comprising the following steps: cutting a long fiber with the strength more than or equal to 25cN / detx into short fibers with the length of 50-100mm; loosing and carding the short fibers; overlapping the carded short fibers; carrying out needling on the overlapped short fibers to obtain a nonwoven fabric; gluing the nonwoven fabric by adhesive with the concentration of 6-15wt%, wherein the adhesive comprises 5-12wt% of polystyrene elastic body, 1-3wt% of thickening resin and the balance of solvent, and the content of the adhesive in the nonwoven fabric is 5-15wt%; and drying and carrying out hot-embossing on the glued nonwoven fabric, wherein the hot pressing temperature is 80-150 DEG C, and the pressure is 15-30MPa. In the method provided by the invention, high-strength fibers are taken as a raw material, and the adopted adhesive has better fluidity, thus the stab-resistant fabric prepared by adopting the method has uniform mechanical properties and better stab resistance.

Description

technical field [0001] The invention relates to the field of safety protection, in particular to a preparation method of a stab-resistant fabric. Background technique [0002] Stab-resistant fabrics have an important application in the field of safety protection. Users wearing stab-resistant clothing made of stab-resistant fabrics can effectively resist external attacks, thereby ensuring the safety of personal and property. [0003] Chinese patent document CN101357010A discloses a method for making soft stab-resistant insoles. In this patent, the preparation process of the stab-resistant fabric is to prepare PE short fibers first, then needle-punch the PE short fibers into non-woven fabrics and then coat them with adhesive , Soak the PE woven fabric in the adhesive, and finally heat-press one or more layers of PE non-woven fabric and one or more layers of PE woven fabric. The disadvantage of this method is that the toughness of PE fibers is poor, which affects the stab-proo...

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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Patent Type & Authority Applications(China)
IPC IPC(8): F41H1/02
Inventor 赵罗杰陈永银周成程黄金帮陈钢
Owner 杨珍芬
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