A kind of post-treatment method of silver-plated fiber and its multi-layer composite fabric and fabric

Abstract

The invention discloses a silver-plated fiber, a multi-layer compound fabric of the silver-plated fiber and an after-treatment method of the fabric. The silver-plated fiber comprises a silver fiber body which is composed of a nylon fiber and a silver layer which wraps the surface layer of the nylon fiber, a bonding layer is formed between the silver layer and the nylon fiber, and the surface of the silver layer is coated with a protective layer which prevents the silver layer from being scratched in the weaving process. The after-treatment method of the multi-layer compound fabric of the silver-plated fiber includes the following steps of firstly, preparing the fabric of the silver-plated fiber, secondly, conducting enzyme treatment, thirdly, washing, and fourthly, stoving. A plant enzyme treatment mode is adopted for after-treatment, the problem that the silver layer is damaged due to the adoption of traditional alkali liquor treatment is solved, the bonding layer of the silver-plated fiber and the nylon fiber is effectively protected, firmness of the silver-plated fiber is improved, the electromagnetic shielding effect of the fabric of the silver-plated fiber is effectively improved, and the service life of the fabric is prolonged.

Description

technical field [0001] The invention belongs to the technical field of textiles and post-treatment production and processing, and in particular relates to a silver-plated fiber, a multi-layer composite fabric woven by using the silver-plate fiber, and a post-treatment method for the multi-layer composite fabric. Background technique [0002] Anti-electromagnetic radiation fabric is a shielding material widely used in electromagnetic compatibility technology, especially an indispensable material for human body protection in this field. With the continuous development of science and technology, more and more electronic and electrical products are used in people's work and life. The electromagnetic radiation released by electronic and electrical equipment can cause harm to the human body. The personal protective clothing processed by the anti-electromagnetic radiation fabric protects the human body, which can greatly reduce or avoid the damage of electromagnetic radiation to th...

AI Technical Summary

Problems solved by technology

[0003] Problems with silver-plated fibers: silver-plated fibers are woven into fabrics using a special process to form fabrics containing silver fibers, but there is a problem that in the process of weaving, since the silver-plated fibers have to be operated by knitting machines or shuttle looms , the silver-plated fiber is easily scratched by these devices when the silver-plated fiber passes through the process of crochet needles or brown silk. The service life of fiber fabrics is an easily overlooked issue in the textile industry

[0004] Containing the problems of silver-plated fiber fabrics: the silver-plated fiber radiation-proof fabrics that adopt silver-plated fiber to weave at present are generally double-layer structures, that is, fiber yarn braiding layer and silver-plated fiber braiding layer CN201849030U discloses a kind of silver-plated fiber Anti-electromagnetic radiation woven fabric, due to the double-layer structure design, the fabric has a double-sided effect, one side is mainly woven from conventional yarns, the other side is mainly woven from silver-plated fibers, and the two sides are connected by a small number of interweaving points

But these structures inevitably make the silver-plated fiber layer exposed on the outer layer, or the inner layer

CN202559029U then discloses a kind of weft plain stitch silver fiber antibacterial fabric, has double-sided effect fabric owing to adopting plaiting structure, one side shows as conventional yarn, and the other side shows silver-plated fiber, as figure 1 As stated, it is impossible to cover the silver-plated fiber layer between the inner layer and the outer layer

Because the silver-plated fiber is dark gray, it not only affects the beauty of the fabric, but also affects the durability of the electromagnetic shielding of the fabric

On the one hand, due to the exposure of the silver-plated fiber layer and the effects of long-term sun oxidation and wear, the silver layer on the surface of the silver-plated fiber will turn yellow, which will affect the appearance of wearing.

On the other hand, once the silver-plated fiber layer is in close contact with the skin, it will be affected by abrasion or sweat, which will cause the silver layer to fall off or turn yellow, thereby reducing the shielding performance.

And existing multi-layer silver fiber fabric, its structure is generally with silver fiber as surface layer, and the other side and two surface layers or surface layer and inner layer are connected yarn, then adopt cotton yarn or other fiber yarn, do not see Reports on weaving layers of silver fibers into the interior of multilayer fabrics

[0005] Problems in post-processing: fabrics interwoven with silver-plated fibers and cotton yarns often need to be scoured in the process of post-processing to remove cotton wax on the surface of cotton fibers. Lye is usually used in the scouring process. Tests have shown that lye will It will lead to the denaturation and cracking of the silver fiber coating, which will lead to the stripping of the silver coating and the nylon fiber. During the subsequent washing process, water and other liquids will penetrate into the joint surface of the silver coating and the nylon fiber, reducing the adhesion between the silver coating and the nylon fiber. Combining firmness, and then destroying the silver-plated fiber layer, resulting in a decrease in conductivity, affecting the electromagnetic shielding effect of the fabric, thereby affecting the service life of the silver-plated fiber fabric

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