Preparation method of antibacterial non-woven cloth and antibacterial non-woven cloth

Abstract

The invention discloses a preparation method of antibacterial non-woven cloth. The preparation method comprises the following steps that S1, hydrophilic modification is carried out on a polylactic acid fiber under a mixed solution of water and lipase to obtain a hydrophilic polylactic acid fiber; S2, the hydrophilic polylactic acid fiber is soaked into a grafting treating fluid containing nano-crystal cellulose, esterification catalyst and ionic liquid for grafting reaction to obtain a cellulose grafting polylactic acid fiber; S3, lapping is carried out on the cellulose grafting polylactic acid fiber to obtain a single component and a fiber web, or blend lapping is carried out on the cellulose grafting polylactic acid fiber and a second fiber to obtain a mixed fiber web, and spunlace, cleaning and drying are carried out to obtain an antibacterial non-woven cloth finished product. The obtained polylactic acid fiber has good flexibility and hydrophilia, the antibacterial property is further improved, and based on the same antibacterial effect, the content of the polylactic acid fiber used in a blend fiber of the non-woven cloth can be reduced properly. The invention further disclosesthe antibacterial non-woven cloth and application thereof.

Description

technical field [0001] The invention belongs to the technical field of nonwoven fabrics, and in particular relates to a preparation method of an antibacterial nonwoven fabric and the antibacterial nonwoven fabric. Background technique [0002] Spunlaced nonwovens spray high-pressure fine water onto one or more layers of fiber webs. Due to its wide range of raw materials, soft and fluffy feel, appropriate strength, no warp and weft, convenient cutting and sewing, and light weight and easy shaping, it is Widely used in beauty, hygiene and medical fields. [0003] There are three types of ecological antibacterial nonwovens in the prior art. The first is to use antibacterial fibers as one of the nonwoven fibers or blended fibers, the second is to use ecological antibacterial agents as finishing agents grafted, and the third is the above-mentioned A combination of the first and the second. The first natural antibacterial fibers include hemp fiber, bamboo fiber, tea fiber, chiti...

AI Technical Summary

Problems solved by technology

[0004] The polylactic acid fiber in the prior art has antibacterial effect, but the hardness of the polylactic acid fiber is relatively large, and the softness is insufficient, and it is used as a blended fiber of a nonwoven fabric, which will make the hand feeling of the nonwoven fabric worse, and achieve a certain antibacterial effect. performance, it is necessary to control the amount of polylactic acid used in nonwovens, but the cost of polylactic acid fibers is relatively high