Non-woven conducting fibric by infusion process and its production method

A non-woven, conductive fabric technology, applied in non-woven fabrics, textiles and papermaking, etc., can solve the problems of high unit weight, complex process, material waste, etc., and achieve the effect of low processing cost, simple process and good performance indicators

Inactive Publication Date: 2007-02-14
WEIHAI HONGDA MERCHANDISE TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, conductive cloth is an EMI shielding material, which is widely used in aerospace, electronics, communication, medical, radar and other fields. , drying, etc. The disadvantage is that it needs to be processed twice, the process is complicated, resulting in high unit weight, large waste of materials, and high energy consumption.

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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Embodiment Construction

[0009] The present invention is further described below:

[0010] A non-woven conductive cloth by impregnation method, which is characterized in that polyester staple fibers are carded and overlapped into a web by a carding machine and then impregnated with a semi-conductive adhesive (one-time molding of the product). The semi-conductive adhesive is composed of acrylic emulsion, acetylene black and water. , The weight percentages of the components of the semiconductive adhesive are: 30%-50% of acrylic emulsion, 5%-15% of acetylene black, and 60%-80% of water.

[0011] The production method is as follows: the polyester staple fiber is cleared into rolls, combed and overlapped by a carding machine to form a web, and then immersed in a mixture of 30%-50% acrylic emulsion, 5%-15% acetylene black, and 60%-80% water. Immersion in the semi-conductive adhesive, the time is generally 2-10 seconds, and then squeezed out by rubber rollers for drying.

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Abstract

The invention relates to a shielding material and its producing method. Its feature is that polyester staple fiber is dipped into semi-conduction adhesive after carding superposing to form net. The semi-conduction adhesive includes 30-50wt% acrylic acid solution, 5-15wt% acetylene black, and 60-80wt% water. The producing method includes the following steps: coiling polyester staple fiber; dipping into mixed semi-conduction adhesive after carding superposing to form net; input by glue roller pressing and drying. It has the advantages of simple technology, low cost, light weight, and good performance index. The common substance of the invention is 25g/m2-120g/m2; surface resistance is not bigger than 5000ohm; volume resistance is not bigger than 1*160ohm.cm; longitudinal direction tensile strength is not less than 30N/15mm; longitudinal fracture piece length ratio is not less than 12%. The invention can be mainly used in high pressure and extra-high-tension cable, electromagnetic shielding and lapping belt to conduct electricity, reduce line voltage loss, produce semi-conduction resistance water hose with low common substance.

Description

Technical field: [0001] The invention relates to a shielding material and a production method, in particular to a dipping method non-woven conductive cloth and a production method thereof. Background technique: [0002] As we all know, conductive cloth is an EMI shielding material, which is widely used in aerospace, electronics, communication, medical, radar and other fields. , drying, etc., the disadvantage is that it needs to be processed twice, the process is complicated, resulting in high unit weight, large waste of materials, and high energy consumption. Invention content: [0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a kind of impregnated non-woven conductive fabric and its production method, which has simple process, light weight and energy saving. [0004] The present invention can reach through following measures: [0005] An impregnated non-woven conductive cloth, characterized in tha...

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): D04H1/58D04H1/435D04H1/587D04H1/64
Inventor 王爱玉
Owner WEIHAI HONGDA MERCHANDISE TRADE
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