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Preparation method of non-dissolution type durable antibacterial regenerated cellulose fibers

A regenerated cellulose, non-elution type technology, applied in the direction of spinning solution preparation, artificial filament made of viscose, etc., can solve the problems of poor washability, fiber or fabric strength, large damage to appearance and other properties, and effective antibacterial agents Issues such as low utilization

Inactive Publication Date: 2014-01-22
JIANGSU GOLDSUN TEXTILE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention overcomes the defects caused by methods such as immersion and coating of the existing antibacterial fibers, physical blending of antibacterial agents and spinning solutions, and chemical grafting of fabrics, such as poor washability, strength to fibers or fabrics, appearance, etc. Large performance damage, low effective utilization of antibacterial agents, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The wood pulp with a degree of polymerization of 520 and a cellulose content of 90% is used to prepare a functional cellulose fiber spinning solution through processes such as dipping, pressing, crushing, aging, yellowing, dissolving, filtering, and degassing. Among them, a reactive organosilicon quaternary ammonium antibacterial agent 3-(trimethoxysilyl)propyl dimethyl octadecyl chloride, which is equivalent to 4% of the methyl fiber content, is added during the yellowing process. In the obtained functional cellulose fiber spinning solution, the content of methylcellulose is 8.9%, NaOH is 5.8%, the viscosity (falling ball method) is 50s, and the degree of maturity (10%NH 4 Cl) 13ml, viscose xanthate spinning dope with a degree of esterification of 45; wet spinning process is used for spinning. The size of the spinneret is 20000 holes × 0.06mm, the spinning speed is 50m / min, the temperature in the spinning room is 26°C, and the relative humidity is 66%. The composition...

Embodiment 2

[0025] Cotton pulp with a degree of polymerization of 550 and a cellulose content of 93% is used to prepare cellulose fiber spinning solution through successive processes of dipping, pressing, crushing, aging, yellowing, dissolving, filtering, and degassing. During the post-dissolution process of cellulose xanthate, reactive N-triethoxysilylpropylisothiazolin-3-one equivalent to 4% of the content of methyl fiber was added to obtain a content of methyl fiber of 8.8%, NaOH5.9 %, viscosity (falling ball method) 48s, maturity (10%NH 4 Cl) 12ml, viscose xanthate spinning dope with a degree of esterification of 50; wet spinning process is used for spinning. The size of the spinneret is 20000 holes × 0.06mm, the spinning speed is 50m / min, the temperature in the spinning room is 25°C, and the relative humidity is 65%. The composition of the coagulation bath is: sulfuric acid 115g / L, sodium sulfate 300 g / L, zinc sulfate 10 g / L, temperature 52°C, acid bath drop 3g / L. Post-treatment pr...

Embodiment 3

[0028] Cotton pulp with a degree of polymerization of 550 and a cellulose content of 93% is used to prepare cellulose fiber spinning solution through successive processes of dipping, pressing, crushing, aging, yellowing, dissolving, filtering, and degassing. During the post-dissolution process of cellulose xanthate, reactive 1,3-bis(dimethyldodecanmonium chloride ethoxy) cyanuric chloride equivalent to 4% of the content of methyl cellulose was added to obtain the content of methyl cellulose 8.8%, NaOH5.9%, viscosity (falling ball method) 48s, maturity (10%NH 4Cl) 12ml, viscose xanthate spinning dope with a degree of esterification of 50; wet spinning process is used for spinning. The size of the spinneret is 20000 holes × 0.06mm, the spinning speed is 50m / min, the temperature in the spinning room is 25°C, and the relative humidity is 65%. The composition of the coagulation bath is: sulfuric acid 115g / L, sodium sulfate 300 g / L, zinc sulfate 10 g / L, temperature 52°C, acid bath ...

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
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PUM

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Abstract

The invention discloses a preparation method of non-dissolution type durable antibacterial regenerated cellulose fibers. The method comprises the steps as follows: firstly, cellulose sizy dregs are prepared into a spinning viscose solution, and a reactive antibacterial agent is added in the process or after the process ends; and then processing steps of spinning, post-processing and drying are performed sequentially, so that the durable antibacterial regenerated cellulose fibers are prepared. Therefore, the antibacterial agent provided with reactive groups is adopted and added into the spinning solution; the agent and hydroxide radicals on macromolecular side chains of the cellulose fibers form covalent bond combination; and the cellulose fibers with antibacterial performance are prepared with the wet spinning method. The fibers have permanent antibacterial performance; and the fibers have reactions with the cellulose macromolecular side chains, so that no damage is caused to the basic performance of the cellulose fibers.

Description

technical field [0001] The invention relates to a preparation method of a non-elution type durable antibacterial regenerated cellulose fiber, which belongs to the technical field of textiles. Background technique [0002] In recent years, with the rapid development of industry and the improvement of people's living standards, people's awareness of environmental hygiene and self-care is increasing. People will inevitably come into contact with various bacteria, fungi and other microorganisms. These microorganisms will multiply rapidly and spread diseases through contact under suitable external conditions (such as temperature and humidity), affecting people's health and normal work. study and life. [0003] There are countless microorganisms in the living space of human beings. There are 50-5000 microorganisms per square meter on the skin of the upper body of the human body. They obtain nutrients from sweat and other secretions to carry out the metabolism of growth, reproduct...

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
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Application Information

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IPC IPC(8): D01F2/08D01D1/02
Inventor 胡青青陈红霞陆鹏丁可敬
Owner JIANGSU GOLDSUN TEXTILE SCI & TECH
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