Negative ion antibacterial ES composite fiber and preparation method thereof

Abstract

The invention discloses negative ion antibacterial ES composite fiber and a preparation method thereof. The negative ion antibacterial ES composite fiber has a skin-core structure, that is, the negative ion antibacterial ES composite fiber is composed of a core layer and a skin layer, wherein the core layer comprises the following raw materials in parts by weight of 80-90 parts of polypropylene, 8-11 parts of polyethylene and 12-16 parts of maleic anhydride grafted polypropylene; and the skin layer is prepared from the following raw materials in parts by weight of 70 to 80 parts of polyethylene, 7 to 10 parts of an ethylene-propylene copolymer, 6 to 8 parts of dibutyl maleate grafted polypropylene, 15 to 20 parts of an ethylene-vinyl acetate copolymer, 5 to 6.5 parts of crystal tourmaline powder, 2 to 2.6 parts of opal powder and 1.5 to 2.0 parts of hedera helix powder. The negative ion antibacterial ES composite fiber disclosed by the invention has good antibacterial and bacteriostatic effects on escherichia coli, candida albicans, staphylococcus aureus and the like, has broad-spectrum antibacterial and bacteriostatic effects, and does not contain small-molecular antibacterial agents and heavy metal ions such as silver ions; and the breaking strength is high, the mechanical property is excellent, the durability is good, and the flexibility is good.

Description

technical field [0001] The invention relates to the field of composite fibers, in particular to an anion antibacterial ES composite fiber and a preparation method thereof. Background technique [0002] The cross-section of the same fiber has two or more kinds of immiscible polymers at the same time, that is, composite fiber, which belongs to a kind of physically modified fiber. Nowadays, there are more and more types of composite technology and composite fibers. Through composite fiber manufacturing technology, modified fibers containing two polymer properties can be obtained, such as bicomponent fibers and ultrafine fibers. ES composite fiber is a kind of composite fiber. [0003] The ES of ES fiber is the abbreviation of "Ethylene-Propylene Side By Side" in English, and it is a kind of eye-catching polyolefin fiber. As a new type of heat-bonding composite fiber, ES fiber has won high praise in the world. ES fiber belongs to the key development varieties of my country's ...

AI Technical Summary

Problems solved by technology

[0005] 1. Either it has no antibacterial effect; or it can obtain antibacterial properties by adding small molecule antibacterial agents or not containing heavy metal ions such as silver ions. During later use, small molecule antibacterial agents and heavy metal ions such as silver ions migrate to the surface of the fiber, which is harmful to health and antibacterial The effect is not long-lasting;

[0006] 2. Obtaining antibacterial properties by adding small molecule antibacterial agents or not containing heavy metal ions such as silver ions leads to a significant decrease in the mechanical strength of the fiber, which is not durable, hard, and uncomfortable to wear

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