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Production method of washable electromagnetic shielding fabric

A technology of electromagnetic shielding and production methods, applied in the direction of fiber type, textile and paper making, fiber treatment, etc., can solve the problems of poor washing resistance, susceptibility to oxidation, performance degradation, etc.

Inactive Publication Date: 2018-10-09
合肥爱家防辐射科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-ion fiber electromagnetic shielding fabric made of acrylic fiber has antibacterial properties in addition to the electromagnetic shielding function, but it is not washable, easy to fade, and is easily oxidized in the air, resulting in performance degradation. The current market share is 1 / less than 6
[0004] In summary, the electromagnetic shielding fabrics currently on the market have poor washability, and there is no production method for washable electromagnetic shielding fabrics.

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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  • Production method of washable electromagnetic shielding fabric
  • Production method of washable electromagnetic shielding fabric
  • Production method of washable electromagnetic shielding fabric

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Experimental program
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Embodiment 1

[0016] In this embodiment, the acrylic yarn is the conventional 21 yarn purchased from Shanghai Jinshan Acrylic Fiber Factory s yarn. The reagents used are all industrial grade and no further purification is required during use.

[0017] The bath ratio and the percentages of each chemical reagent in the formula are the ratios to the mass of the acrylic yarn. The specific formula is as follows: acrylic yarn 100g; copper sulfate 25%-35%; silver nitrate 1-2%; potassium sodium tartrate 2-3%; sodium thiosulfate 20%-30%; sodium sulfite 1%-3%; penetrant JFC 0.2-0.7%; cationic surfactant 1227 0.1-0.3%; adjust the pH value to 2 with sulfuric acid. The liquor ratio is 1:50.

[0018] In the embodiment, the heating rate is 0.5°C / min, the cooling rate is 1°C / min, and the heating curve is: initial temperature (room temperature)→25°C for 5min→30°C for 10min→35°C for 15min→40°C 20min→45°C for 25min→50°C for 40min→55°C for 20min→60°C for 20min→65°C for 20min→70°C for 25min→75°C for 40min→8...

Embodiment 2

[0027] In this embodiment, the raw material is the conventional 21s yarn purchased from Shanghai Jinshan Acrylic Fiber Factory, and the knitted fabric and the woven fabric are respectively made by themselves on conventional knitting and weaving equipment. The reagents used are all industrial grade and no further purification is required during use. The bath ratio and the percentages of each chemical reagent in the formula are the ratios to the mass of the acrylic fiber cloth.

[0028] The specific formula is as follows: 100g of acrylic fabric; 25%-35% of copper sulfate; 1-2% of silver nitrate; 2-3% of potassium sodium tartrate; 20%-30% of sodium thiosulfate; 1%-3% of sodium sulfite; JFC0. 2~0.7%; 1227 or CD, RCT 0.1~0.3%; adjust the pH value to 2 with sulfuric acid. The liquor ratio is 1:50.

[0029] In an embodiment, the heating curve is: initial temperature (room temperature)→25°C for 5min→30°C for 10min→35°C for 15min→40°C for 20min→45°C for 25min→50°C for 40min→55°C for ...

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 production method of washable electromagnetic shielding fabric. The production method comprises the following steps: (1), adding copper sulfate and a silver nitrate solution into water, then adding JFC and a dye-retarding agent, uniformly mixing, and adding sulfuric acid to adjust the PH value; (2), adding acrylic yarn or acrylic fabric into a prepared chemical reaction bath, adding a sodium thiosulfate solution, sodium sulfite and a sodium potassium tartrate solution, running in a container for 30min, then raising the temperature according to a temperature raising curve, preserving heat at 100 DEG C for 60min, reducing the temperature to 60 DEG C according to a temperature reducing rate of 1 DEG C / min, washing by using warm water, dewatering and drying; (3), coating the dried conductive acrylic yarn with graphene-based water-based electromagnetic shielding coating and weaving to obtain the washable electromagnetic shielding fabric, and coating the dried conductive acrylic fabric with the graphene-based water-based electromagnetic shielding coating. The shielding effectiveness of the washable electromagnetic shielding fabric produced by the production method provided by the invention can still meet using requirements after 10 times of washing.

Description

technical field [0001] The invention relates to a production method of electromagnetic shielding fabric, in particular to a production method of water-resistant electromagnetic shielding fabric. Background technique [0002] Electromagnetic shielding fabric has good electrical conductivity, and can maintain the characteristics of fabric materials such as breathability, flexibility, foldability, and bonding. It can be made into shielding clothing, shielding tents, and shielding room materials to ensure personal and information safety. It is an ideal electromagnetic shielding material. [0003] According to different preparation processes, electromagnetic shielding fabrics can be divided into: (1) metal fiber blended fabrics. It is mainly made by blending conductive metal fibers and ordinary fibers. Commonly used metal fibers are stainless steel fibers. The market share of this type of electromagnetic shielding fabric is about 1 / 4. However, due to the large proportion of m...

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): D06M11/57D06M11/54D06M11/56D06M11/65D06M13/192
CPCD06M11/54D06M11/56D06M11/57D06M11/65D06M13/192D06M2101/28
Inventor 梁昌锐孟令军
Owner 合肥爱家防辐射科技有限公司
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