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Shielded electromagnetic wave fabric and its manufacturing method

A manufacturing method and electromagnetic wave technology, applied in the direction of fabrics, textiles, papermaking, textiles, etc., can solve the problems of secondary pollution and no improvement in the environment, and achieve the effect of reducing pollution

Inactive Publication Date: 2010-06-09
上海蘅薄新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No wonder some people say that using this kind of fabric in an environment polluted by electromagnetic waves is "harming others and benefiting oneself". Although it protects itself, it does not improve the environment, but causes a second pollution

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] 31% by weight of cotton fibers, 36% of cotton polyester staple fibers, and 19% of metal fibers are blended to make rovings; 14% by weight of carbon-containing and silicon fibers are drawn into rovings. The carbon fiber content is 5%, and the silicon fiber content is 7%; then the rovings containing carbon and silicon fibers are blended with rovings including polyester fibers, cotton fibers and metal fibers to form 32-count spun yarns; then the 32-count yarns are pressed 2 / 1 of the warp and weft is woven into a denim structure.

Embodiment 2

[0013] 35% by weight of cotton fibers, 30% of cotton polyester staple fibers, and 16% of metal fibers are blended to make rovings; 19% by weight of carbon-containing and silicon fibers are drawn into rovings. The carbon fiber content is 8%, and the silicon fiber content is 6%; then the rovings containing carbon and silicon fibers are blended with rovings including polyester fibers, cotton fibers and metal fibers to form 18 spun yarns; then the 18 spun yarns are pressed 2 / 1 of the warp and weft is woven into a denim structure.

Embodiment 3

[0015] 40% by weight of cotton fibers, 29% of cotton polyester staple fibers, and 21% of metal fibers are blended to make rovings; 10% by weight of carbon-containing and silicon fibers are drawn into rovings. The carbon fiber content is 4%, and the silicon fiber content is 4%; then the roving containing carbon and silicon fibers and the roving including polyester fiber, cotton fiber and metal fiber are blended into 32 spun yarns; then the 32 spun yarns are pressed 2 / 1 of the warp and weft is woven into a denim structure.

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 discloses a fabric capable of shielding electromagnetic wave. The described fabric composition includes (by wt%) 30-41% of cotton fibre, 28-38% of cotton type spun polyester fibre, 16-23% of metal fibre and 13-20% of fibre containing carbon and silicone. The shielding effect of said fabric in the frequency range of 0.15MHz-5GHz can be up to 20-40 dB, in which 30-40% of electromagnetic wave can be absorbed by said fabric. Said invention has the double-function of absorbing and reflecting electromagnetic wave.

Description

Technical field: [0001] The invention belongs to the technical field of textile engineering, and in particular relates to a fabric used or worn on occasions requiring shielding of electromagnetic waves and a manufacturing method thereof. Background technique: [0002] The current electromagnetic wave shielding fabrics, domestic and foreign manufacturing methods are to put metals or their compounds on the fibers, and then weaving them into conductive fabrics, such fabrics only reflect electromagnetic waves, such as Japanese patents JP58-132121, CN1045428A, CN1165219A, CN1034771A, etc., when electromagnetic waves are irradiated on these fabrics, the electromagnetic waves either return in the same way, or are reflected out according to the refractive index of the incident point, and its energy is not lost at all, but only changes its direction. It is no wonder that some people say that using this kind of fabric in an environment polluted by electromagnetic waves is "harmful to ...

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 Patents(China)
IPC IPC(8): D03D15/00D03D15/217D03D15/25D03D15/283D03D15/47D03D15/50
Inventor 刘满华
Owner 上海蘅薄新材料科技有限公司