Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Antibacterial cellulose composite fiber and its preparation method

A technology of cellulose fiber and composite fiber, which is applied in the direction of single-component cellulose rayon, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of insoluble water-soluble chitosan coagulation and precipitation, difficult coagulation and forming, etc., to achieve Stable structure, avoiding loss, good antibacterial performance and moisture absorption performance

Active Publication Date: 2020-11-24
TIANE CHEM FIBER GROUP CORP BAODING +1
View PDF4 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

[0035] The water-soluble chitosan solution is injected into the sodium carboxymethyl cellulose solution under stirring to obtain the water-soluble chitosan / carboxymethyl cellulose sol, wherein the water-soluble chitosan solution and the sodium carboxymethyl cellulose solution The volume ratio of the water-soluble chitosan molecule is 1:1, and the ratio of the number of positive charges carried by the water-soluble chitosan molecule to the number of negative charges carried by the sodium carboxymethyl cellulose molecule is 0.5:1; the water-soluble chitosan solution and carboxymethyl cellulose The concentration of sodium 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%; Stirring adopts a stirrer, and the sti...

Embodiment 2

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

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

[0043] The water-soluble chitosan solution is injected into the sodium carboxymethyl cellulose solution under stirring to obtain the water-soluble chitosan / carboxymethyl cellulose sol, wherein the water-soluble chitosan solution and the sodium carboxymethyl cellulose solution The volume ratio of the water-soluble chitosan molecule is 1:1.1, and the ratio of the number of positive charges carried by the water-soluble chitosan molecule to the number of negative charges carried by the sodium carboxymethyl cellulose molecule is 0.7:1; the water-soluble chitosan solution and carboxymethyl cellulose The concentration of cellulose sodium 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%; Stirring adopts a stirr...

Embodiment 3

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

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

[0051] The water-soluble chitosan solution is injected into the sodium carboxymethyl cellulose solution under stirring to obtain the water-soluble chitosan / carboxymethyl cellulose sol, wherein the water-soluble chitosan solution and the sodium carboxymethyl cellulose solution The volume ratio of the water-soluble chitosan molecule is 0.9:1, and the ratio of the number of positive charges carried by the water-soluble chitosan molecule to the number of negative charges carried by the sodium carboxymethylcellulose molecule is 0.64:1; the water-soluble chitosan solution and carboxymethyl cellulose The concentration of cellulose sodium solution is 1.5g / L, the weight-average molecular weight of water-soluble chitosan is 5000g / mol, and the deacetylation degree is 91%; Stirring adopts stirrer, and stirring r...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
concentrationaaaaaaaaaa
quality scoreaaaaaaaaaa
degree of polymerizationaaaaaaaaaa
Login to View More

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com