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Pretreatment roughening method of electromagnetic shielding fabric

An electromagnetic shielding and fabric technology, applied in physical treatment, magnetic field/electric field shielding, fiber treatment, etc., can solve the problems of human health threats, mutual interference of electronic products, etc., and achieve good coating fastness and less damage.

Inactive Publication Date: 2013-03-13
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electromagnetic waves will not only cause mutual interference of electronic products, but also pose a serious threat to human health

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

[0027] The selected fabric is: polyester taffeta 290T (yarn density: 51 / 63, chemical composition: polyethylene terephthalate (PET)). Put the desized polyester fabric sample of 10cm×10cm in the chamber of the plasma processor, change the treatment time for 30s, and change the distance between the plates by 4mm, and perform normal pressure plasma treatment on the fabric, the gas atmosphere is air, the discharge power is 60W, and the power Density 0.16W / cm 2 . Sensitize in a solution of 8g / L stannous chloride for 5 minutes, adjust the pH to 2, and the temperature at 30°C; rinse the fabric with clean water after it is taken out. Then activate it in 0.5g / L palladium chloride solution for 5 minutes, the pH value is 1, the temperature is 40°C, take it out and dry it. Then strengthen it in formaldehyde solution and carry out electroless plating. The specific formula of electroless plating: main salt: copper sulfate concentration 20g / L; secondary salt: NiCl 2 0.4g / L; main complexin...

Embodiment 2

[0029] The selected fabrics and the processing process are as described in Example 1. The polyester fabric sample is placed in the plasma processor chamber, the treatment time is changed for 120s, and the distance between the plates is changed by 4mm. The fabric polyester taffeta 290T is subjected to atmospheric pressure plasma treatment.

Embodiment 3

[0031] The selected fabrics and the processing process are as described in Example 1. The polyester fabric sample is placed in the plasma processor cavity, the treatment time is changed for 300 s, and the distance between the plates is changed by 4 mm. The fabric polyester taffeta 290T is subjected to atmospheric pressure plasma treatment.

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Abstract

The invention relates to a pretreatment roughening method of an electromagnetic shielding fabric, comprising the following steps of: placing the electromagnetic shielding fabric on a polar plate inside a plasma treater; carrying out plasma treatment on the electromagnetic shielding fabric for 30-1200 seconds, and then placing into a sensitizing solution to carry out sensitizing treatment for 20-40 minutes; cleaning the obtained fabric by clear water, and then placing into an activating solution to carry out activating treatment for 4-6 minutes; drying and strengthening by formaldehyde, and then placing into a chemical plating solution to carry out chemical plating treatment for 20-40 minutes; and cleaning the fabric by the water again and drying. Compared with the prior art, the invention can carry out roughening trimming on natural fibers, i.e. cotton, hemp, silk, and the like, and chemical fibers, i.e. terylene, chinlon, orlon, polyfluortetraethylene, and the like, can obtain the roughening degree equivalent to that of the conventional alkali roughening, has less damage of the fabric, and then carries out the chemical plating, thereby obtaining good plating fastness.

Description

technical field [0001] The invention relates to a pretreatment method for functional fabrics, in particular to a pretreatment roughening method for electromagnetic shielding fabrics. Background technique [0002] Since the 1960s, plasma has been used in the surface treatment of different textile materials to improve the surface properties of materials such as cleaning, adhesion, dyeability, hydrophilicity / hydrophobicity, anti-friction, anti-shrinkage, Anti-reflection, desizing and more. The application of plasma technology in textiles began in the 1950s. my country began to study plasma treatment of textiles in the 1980s. In recent years, with the improvement of finishing requirements of textile materials, the increasing use of synthetic fibers and the needs of environmental protection textile engineering, plasma surface modification of textile materials has a tendency to replace traditional wet chemical process treatment. [0003] In the plasma treatment of polymers, act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/83D06M11/20D06M11/28D06M10/00H05K9/00
Inventor 沈勇张惠芳王黎明魏宁白林翠
Owner SHANGHAI UNIV OF ENG SCI
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