Preparation method and application of composite non-woven fabric

Abstract

The invention discloses a preparation method and application of composite non-woven fabric. The composite non-woven fabric is prepared by laying a silk fiber net layer and a cotton fiber net layer through a spunlace process, wherein the silk layer is a straight laying net, and the pure cotton layer is a full cross laying net. According to the prepared composite non-woven fabric, the problems of tight combination, poor water absorption, low menstrual blood seepage speed, easiness in causing side leakage and the like when silk fibers are singly used and applied to the surface layer of a sanitarytowel are solved; and meanwhile, the problem that spunlace cloth made of degreased and bleached common cotton fibers is not soft and comfortable enough in texture is avoided. After the silk fibers are prepared into the sanitary towel, the silk layer is in contact with the skin, and the longitudinally arranged fibers are prone to longitudinal diffusion of menstrual blood and are not easy to leak laterally; and the pure cotton layer is in contact with a flow guide layer of the sanitary towel, so that the menstrual blood is easy to seep downwards and diffuse around, the safety and absorbabilityof the sanitary towel are enhanced, and the problem of menstrual blood side leakage is solved. Meanwhile, the indexes such as the absorption speed and the reverse osmosis amount of the sanitary towelmade of the composite non-woven fabric are obviously superior to those of sanitary towels made of other materials.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, and more specifically, to a preparation method and application of composite non-woven fabrics. Background technique [0002] Non-woven fabrics are widely used in medical products and hygiene products. The non-woven fabrics used in sanitary products include air-through non-woven fabrics, spunbonded non-woven fabrics, hot-rolled non-woven fabrics, and pure cotton non-woven fabrics. The linear density of cotton fiber is 1.54~2.5dtex. After degreasing and bleaching, the texture of spunlace fabric is worse than that of silk spunlace fabric. Generally, spunlace fabric made of cotton material can be used on the surface of sanitary napkins, with better wear resistance. , The combination between fibers is relatively loose and has good water absorption. It is applied to the surface layer of sanitary napkins, and menstrual blood can be absorbed quickly, but it is wet after use, not dry enough, no...

AI Technical Summary

Problems solved by technology

[0004] The fiber linear density of silk fiber is 0.9~1.6dtex, and the fibers are closely bonded. After being made into spunlace nonwoven fabric, the water absorption is poor. Leakage and other issues

At the same time, silk fiber is more likely to generate static electricity than cotton fiber, and it is easy to form serious flying flowers during the production process, which affects the uniformity of the fiber web. The problem of fiber static electricity needs to be solved during the production process

[0005] At present, the technology of mixing silk fibers and cotton fibers to prepare non-woven fabrics is immature in the market. CN201721450852.6 discloses a highly water-absorbent silk non-woven fabric, including a first silk non-woven fabric layer, a carbon fiber non-woven fabric layer, a water-absorbent The resin fiber non-woven layer, the cotton fiber non-woven layer, and the second silk non-woven layer have a multi-layer structure, and the preparation process is extremely complicated. At the same time, there is no composite non-woven fabric made of silk fibers and cotton fibers on the market. Cloth used in hygiene products

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