Antibacterial cellulose composite fiber and its preparation method

Abstract

The invention relates to an anti-bacterial cellulose complex fiber and a preparation method thereof. The preparation method comprises the following step: spinning a mixed solution of water-soluble chitosan / carboxymethylcellulose collosol and a cellulose spinning solution to obtain the anti-bacterial cellulose complex fiber, wherein the dispersion phase particles of the water-soluble chitosan / carboxymethylcellulose collosol are a water-soluble chitosan / carboxymethylcellulose composition. The prepared antibacterial cellulose complex fiber is mainly prepared from a cellulose fiber substrate and the water-soluble chitosan / carboxymethylcellulose composition which is distributed inside and / or outside the cellulose fiber substrate; the water-soluble chitosan / carboxymethylcellulose composition ismainly formed by bonding water-soluble chitosan and carboxymethylcellulose through an ionic bond; the water-soluble chitosan / carboxymethylcellulose composition and the cellulose fiber substrate are mainly bonded through a hydrogen bond. The preparation method is easy to operate, and the prepared anti-bacterial cellulose complex fiber has the advantages of stable structure, high mechanical performance, antibacterial performance, moisture absorbing performance and excellent popularization value.

Description

technical field [0001] The invention belongs to the field of functional fibers and relates to an antibacterial cellulose composite fiber and a preparation method thereof. Background technique [0002] Regenerated cellulose fibers include viscose fibers, lyocell fibers and cupro fibers. Regenerated cellulose fiber is the world's largest regenerated fiber and plays a pivotal role in the textile industry. However, regenerated cellulose fiber is prone to mold and does not have antibacterial or antibacterial properties, which affects the application of regenerated cellulose fiber in the fields of medical treatment, hygiene and high-end clothing. [0003] At present, adding antibacterial agents to cellulose fibers is the main method to improve the antibacterial properties of cellulose fibers. For example, Chinese Patent 1 (Application No. 200410062799.3) discloses a preparation method of viscose fiber loaded nano-silver particles. Chinese patent 2 (application number 2016103840...

AI Technical Summary

Problems solved by technology

Conventional cellulose wet spinning process such as viscose fiber, lyocell fiber or cupro fiber production process, the coagulation bath used is an aqueous solution, which can not coagulate and precipitate water-soluble chitosan, so the water-soluble chitosan Chitosan is directly added to the cellulose spinning solution, it is difficult to solidify and form through the conventional cellulose wet spinning process