Antibacterial ES composite short fiber used for surface layer of hot-air non-woven fabric and preparation method of fiber

Abstract

The invention discloses an antibacterial ES composite short fiber used for a surface layer of a hot-air non-woven fabric. The ES composite short fiber has a skin-core structure, that is, the fiber iscomposed of a core layer and a skin layer; the core layer is prepared from, by weight, 90-97 parts of polypropylene and 2-5 parts of an ethylene-propylene copolymer; the skin layer is prepared from, by weight, 85-95 parts of polyethylene, 5-7.5 parts of methyl methacrylate graft modification polyethylene, 3-6 parts of an ethylene-propylene copolymer and 6-9 parts of a composite antibacterial agent; the composite antibacterial agent is prepared from, by weight, 70-85 parts of chitosan-grafted sodium polyacrylate super absorbent resin, 70-85 parts of a crylic acid-2-acrylamide-2-methyl propanesulfonic acid copolymer, 25-37 parts of silver nitrate and 5-9 parts of nanometer silver. The antibacterial ES composite short fiber used for the surface layer of the hot-air non-woven fabric is high inantibacterial efficiency and has a lasting antibacterial effect, and the prepared surface layer of the hot-air non-woven fabric is good in softness and texture, high in longitudinal and transverse strength and durable.

Description

technical field [0001] The invention relates to the field of composite fibers, in particular to an antibacterial ES composite short fiber for air-through non-woven fabric surface layer and a preparation method thereof. Background technique [0002] The hot air non-woven fabric belongs to one of the hot air bonding (hot rolling, hot air) non-woven fabrics. Bonded nonwovens. [0003] Composite fiber is a differentiated composite fiber, which refers to two or more fiber-forming polymer melts or concentrated solutions, using the differences in components, ratios, viscosities, etc., respectively input into the same spinning assembly, and in the assembly Appropriate parts are merged and sprayed from the same spinneret hole to make different types of fibers such as side-by-side type, core-spun type, sea-island type, and star-shaped type. To a certain extent, composite fibers can complement each other and fill in defects. At present, composite fibers mainly include ES fibers, sea...

AI Technical Summary

Problems solved by technology

[0006] 1. The antibacterial efficiency is low, and the antibacterial effect is not durable;

[0007] 2. The surface layer of the hot-air non-woven fabric produced has poor softness, poor texture, insufficient vertical and horizontal strength, and is not durable

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