Flexible electric conductive fabric and its producing method

A flexible conductive and manufacturing method technology, applied in the field of fabric manufacturing, can solve problems such as paralysis, object or human injury, unsustainable work, etc., and achieve the effect of improving shielding performance

Inactive Publication Date: 2006-01-04
上海利昂高科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned shielding electromagnetic wave fabric is powerless in some high-strength electromagnetic field fields, so it will undoubtedly cause damage to objects or the human body, resulting in component failure or even paralysis, and unsustainable work. Therefore, it is also necessary to manufacture flexible fabrics that can shield high-strength electromagnetic fields. , to meet the market demand

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Use 35% metal fiber and 65% cotton fiber to weave the base cloth, put the base cloth into the liquid made of stannous chloride 5g / L and hydrochloric acid 30ml / L for sensitization bath; take it out and rinse it with tap water After two times, directly immerse in the first bath, that is, an electroless silver plating bath containing 3g / L of silver nitrate and 10ml / L of ammonia water to form the bottom layer; then immerse in the second bath, and perform a reduction bath in a liquid composed of water and formaldehyde 9:1 ;Wash the silver-coated base cloth twice and then enter the alloy plating solution. The alloy plating solution formula for the outer layer is: copper sulfate 10g / L, nickel sulfate 40g / L, iron sulfate 15g / L, sodium citrate 40%, Ammonium Chloride 35g / L, Sodium Acetate 35g / L, Sodium Hypophosphite 30g / L, Potassium Borate 10g / L, PH value is 11, the temperature is controlled at 45°C, after 15 minutes of immersion plating to form the bottom layer Two layers with t...

Embodiment 2

[0013] Use 45% metal fiber and 55% cotton fiber to weave the base cloth, put the base cloth into the liquid made of stannous chloride 10g / L and hydrochloric acid 20ml / L for sensitization bath; take it out and rinse it with tap water After two times, directly immerse in the first bath, that is, an electroless silver plating bath containing 5g / L of silver nitrate and 7ml / L of ammonia water to form the bottom layer; then immerse in the second bath, and perform a reduction bath in a liquid composed of water and formaldehyde 7:1 ;Wash the silver-coated base cloth twice and then enter the alloy plating solution. The alloy plating solution formula for the outer layer is: copper sulfate 11g / L, nickel sulfate 45g / L, iron sulfate 12g / L, sodium citrate 45%, Ammonium Chloride 30g / L, Sodium Acetate 38g / L, Sodium Hypophosphite 26g / L, Potassium Borate 11g / L, PH value 10, temperature controlled at 43°C, after 25 minutes of immersion plating to form the bottom layer Two layers with the outer l...

Embodiment 3

[0014] Embodiment 3 selects 40% metal fiber and 60% cotton fiber to weave and form base cloth, base cloth enters in the liquid that is made into by tin protochloride 15g / L and hydrochloric acid 15ml / L and carries out sensitization bath; After taking out After rinsing twice with tap water, immerse directly in the first bath, that is, an electroless silver plating bath containing 8g / L of silver nitrate and 8ml / L of ammonia water to form the bottom layer; then immerse in the second bath, a liquid composed of water and formaldehyde 11:1 Carry out a reduction bath; the base cloth dipped in silver is washed twice and then enters the alloy plating solution. The alloy plating solution formula of the outer layer is: copper sulfate 12g / L, nickel sulfate 43g / L, iron sulfate 14g / L, Sodium citrate is 43%, ammonium chloride is 33g / L, sodium acetate is 40g / L, sodium hypophosphite is 28g / L, potassium borate is 12g / L, the pH value is 9, the temperature is controlled at 40°C, and after 30 minute...

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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PUM

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Abstract

The present invention features that the flexible electrically conductive fabric has base fabric woven with metal fiber in 35-45 % and cotton fiber in 55-65 %, surface metal or alloy coating including one priming layer and one outer layer. The present invention can shield high strength electromagnetic field effectively and has resistance of as low as 1 micro-ohm / cm, shield effect up to 90-120 dB on electromagnetic wave in the frequency range of 0.15 MHz to 20 GHz and magnetic field shielding effect up to 40-50 dB. The present invention has the advantages of being light, ventilating, transparent, non-toxic, fireproof, etc. and is especially suitable for use in fields needing shield on strong electromagnetic wave.

Description

Technical field: [0001] The invention belongs to the technical field of textile engineering, and in particular relates to the manufacture of fabrics used or worn in occasions where electromagnetic waves need to be shielded. Background technique: [0002] The current shielding electromagnetic wave fabrics, such as SHIELDEX, SUPRA tinned and copper fabrics, have a shielding effect of 100 decibels at a frequency of 100MHz; Japan's "Fiber Processing" No.11p27-41 in 2000 has a magnetic field of 6-46 at 10-1000MHz decibel. The above-mentioned shielding electromagnetic wave fabric is powerless in some high-strength electromagnetic field fields, so it will undoubtedly cause damage to objects or the human body, resulting in component failure or even paralysis, and unsustainable work. Therefore, it is also necessary to manufacture flexible fabrics that can shield high-strength electromagnetic fields. , to meet market demand. Invention content: [0003] The object of the present in...

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): D03D15/00D06M11/83H05K9/00D03D15/217D03D15/25D03D15/50
Inventor 商思善刘满华
Owner 上海利昂高科技有限公司
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