A kind of preparation method of composite non-woven fabric and application thereof

Abstract

The invention discloses a preparation method and application of a composite non-woven fabric. The composite non-woven fabric is prepared by stacking a silk fiber mesh layer and a cotton fiber mesh layer through a spunlace process, and the silk layer is a straight-laid mesh. , the pure cotton layer is fully cross-laid. The composite non-woven fabric prepared by the invention avoids the problems of using silk fibers alone, which are tightly combined and has poor water absorption, and is applied to the surface layer of sanitary napkins, where the infiltration rate of menstrual blood is slow, and the problems such as side leakage are easily caused; at the same time, ordinary cotton fibers are avoided. After degreasing and bleaching, the texture of spunlace cloth is not soft and comfortable enough. After using it to prepare a sanitary napkin, the silk layer contacts the skin, and the fibers arranged longitudinally are easy to diffuse longitudinally of menstrual blood, and are not easy to leak sideways; the pure cotton layer contacts the diversion layer of the sanitary napkin, which is easy for menstrual blood to infiltrate and spread to the surrounding area, enhancing the It improves the safety and absorbency of sanitary napkins and solves the problem of side leakage of menstrual blood. At the same time, the absorption rate and reverse osmosis volume of sanitary napkins made of composite non-woven fabrics are significantly better than those made of other materials.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, and more particularly, to a preparation method and application of a composite non-woven fabric. Background technique [0002] Non-woven fabrics are widely used in medical supplies and hygiene products. Non-woven fabrics used in sanitary products include hot air non-woven fabrics, spunbond 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 the spunlace cloth is worse than that of the silk spunlace cloth. Generally, the spunlace cloth made of cotton material can be used on the surface of sanitary napkins and has better wear resistance. , The bond between the fibers is loose and the water absorption is good. It is applied to the surface layer of sanitary napkins and absorbs menstrual blood quickly, but it is wet after use, not dry enough, and not soft and com...

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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