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Anti-bacterial cellulose complex fiber and preparation method thereof

A cellulose fiber and composite fiber technology, applied in the direction of single-component cellulose rayon, fiber chemical characteristics, rayon manufacturing, etc. Stable structure, avoidance of loss, good effect of antibacterial and hygroscopic properties

Active Publication Date: 2018-11-23
TIANE CHEM FIBER GROUP CORP BAODING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method of antibacterial cellulose composite fiber, the specific steps are as follows:

[0034] (1) Preparation of water-soluble chitosan / carboxymethyl cellulose sol;

[0035] Inject the water-soluble chitosan solution into the sodium carboxymethylcellulose solution under stirring to prepare a water-soluble chitosan / carboxymethylcellulose sol, wherein the water-soluble chitosan solution and the sodium carboxymethylcellulose solution The volume ratio of the water-soluble chitosan is 1:1, and the ratio of the positive charge of the water-soluble chitosan molecule to the negative charge of the sodium carboxymethylcellulose molecule is 0.5:1; the water-soluble chitosan solution and carboxymethyl The concentration of sodium base cellulose solution is 3.6g / L, the weight average molecular weight of water-soluble chitosan is 3000g / mol, and the degree of deacetylation is 91%; agitator is used for stirring, the stirring rate is 100 rpm, and the time is 30 minutes ; The...

Embodiment 2

[0041] The preparation method of antibacterial cellulose composite fiber, the specific steps are as follows:

[0042] (1) Preparation of water-soluble chitosan / carboxymethyl cellulose sol;

[0043] Inject the water-soluble chitosan solution into the sodium carboxymethylcellulose solution under stirring to prepare a water-soluble chitosan / carboxymethylcellulose sol, wherein the water-soluble chitosan solution and the sodium carboxymethylcellulose solution The volume ratio of the water-soluble chitosan molecule is 1:1.1, and the ratio of the positive charge number of the water-soluble chitosan molecule to the negative charge number of the sodium carboxymethylcellulose molecule is 0.7:1; the water-soluble chitosan solution and carboxymethyl The concentration of sodium base cellulose solution is 7.5g / L, the weight-average molecular weight of water-soluble chitosan is 4000g / mol, and the degree of deacetylation is greater than 92%; agitator is used, the stirring rate is 120 rpm, and the ...

Embodiment 3

[0049] The preparation method of antibacterial cellulose composite fiber, the specific steps are as follows:

[0050] (1) Preparation of water-soluble chitosan / carboxymethyl cellulose sol;

[0051] Inject the water-soluble chitosan solution into the sodium carboxymethylcellulose solution under stirring to prepare a water-soluble chitosan / carboxymethylcellulose sol, wherein the water-soluble chitosan solution and the sodium carboxymethylcellulose solution The volume ratio of the water-soluble chitosan is 0.9:1, the ratio of the positive charge number of the water-soluble chitosan molecule to the negative charge number of the sodium carboxymethylcellulose molecule is 0.64:1; the water-soluble chitosan solution and carboxymethyl The concentration of sodium base cellulose solution is 1.5g / L, the weight-average molecular weight of water-soluble chitosan is 5000g / mol, and the degree of deacetylation is 91%; agitator is used, the stirring rate is 160 rpm, and the time is 50 minutes ; The...

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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 cupra fibers. Regenerated cellulose fiber is the world's largest production of regenerated fiber, and it has a pivotal position 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 medical, health, and high-end consumption fields. [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 number 200410062799.3) discloses a preparation method of viscose fiber loaded nano silver particles. Chinese Patent 2 (application number 2016103...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/00D01F1/10
CPCD01F1/103D01F2/00
Inventor 姚勇波王东兴王乐军范磊刘怡宁陈思
Owner TIANE CHEM FIBER GROUP CORP BAODING
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