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Production method of high wet modulus synthetic fiber containing bamboo

A mixed fiber, high wet modulus technology, applied in cellulose/protein conjugated rayon, wet spinning, fiber treatment, etc., can solve the problems of low production capacity, high consumption, unstable quality of finished products, etc.

Inactive Publication Date: 2010-10-13
HANGZHOU AUTOON ENVIRONMENTAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of high wet modulus bamboo cellulose fiber that adopts bamboo, wood (or bamboo, cotton) mixed raw material to produce, to solve the filtration difficulty that exists in the production process, spinning formation is poor, the finished product quality is not stable , high consumption, low production capacity and other serial production problems. At the same time, this fiber has antibacterial and cool properties, and the softness of the fiber is better than that of pure bamboo cellulose ordinary fiber. It is more suitable for making high-end underwear and bathroom fabrics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Use bamboo pulp and wood pulp with a ratio of 30%: 70% of the mixed raw materials, and carry out an impregnation and alkalization through 235g / l NaOH solution. The viscose auxiliary agent with 0.1% cellulose content - fatty alcohol ether (code name STOKOMIN EBZ), the first dipping time is 50min. After pressing, use 170g / l NaOH solution for second impregnation and alkalization. The concentration of porridge is 4.0%, the impregnation temperature is 46°C, and the second impregnation time is 30min, so that the hemicellulose in the impregnated alkali solution is dissolved, and its content 2 After yellowing reaction for 60 minutes, cellulose xanthate was produced. After the yellowing was completed, NaOH solution with a concentration of 30 g / l was added to dissolve at a temperature of 10°C. It is 6.0% to obtain the first cellulose content, the viscose of NaOH5.0%, in the dissolving process of cellulose xanthate, add the viscose denaturant of relative 1.0% of the first cellulos...

Embodiment 2

[0056] The ratio of bamboo pulp to wood pulp is 50%: 50% raw material, and the NaOH solution of 258g / L and 220g / L is used to impregnate and alkalize once respectively. The concentration of the porridge is 4.8%. And respectively add viscose auxiliary agent-fatty alcohol ether (code name STOKOMIN EBZ) with a p-methylcellulose content of 0.1%. After alkalization alone for 30 minutes, the two kinds of pulp and porridge were mixed for 40 minutes and squeezed once, and then impregnated and alkalized by 175g / l NaOH solution for the second time. Hemicellulose dissolves out in the dipping lye, and its content is 4 Cl), degree of esterification are 55 cellulose viscose spinning stock solutions. After the cellulose viscose is injected with 2.5% viscose denaturant—the alkylene oxide adduct of nitrogen compound (code name STOKOMIN EB), the spinning dope is formed by wet spinning, and 86g / l of sulfuric acid and zinc sulfate are injected through the nozzle holes. In an acid bath of 50g / l an...

Embodiment 3

[0058]Using bamboo pulp and cotton pulp with a ratio of 30%: 70% of the mixed raw materials, 245g / l NaOH solution is used to impregnate and alkalize once. The viscose auxiliary agent with a cellulose content of 0.1% - fatty alcohol ether (code name STOKOMIN EBZ), the first dipping time is 60 minutes. After pressing, use 172g / l NaOH solution for second impregnation and alkalization, the concentration of porridge is 4.0%, the impregnation temperature is 48°C, and the second impregnation time is 35min, so that the hemicellulose in the impregnation alkali solution is dissolved, and its content 4 Cl), the cellulose viscose spinning stock solution that the degree of esterification is 57. After the cellulose viscose is injected with 1.5% viscose denaturant—the alkylene oxide adduct of nitrogen compound (code name STOKOMIN EBT), the spinning stock solution is formed by wet spinning (spinning), and 100g / L. Zinc sulfate 50g / l, sodium sulfate 150g / l, reaction molding in a coagulation b...

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Abstract

The invention discloses a production method of a high wet modulus synthetic fiber containing bamboo, which comprises the following steps: taking cellulose bamboo pulp or the cellulose bamboo pulp mixed with one of cellulose wood pulp and cellulose cotton pulp as a mixed raw material, carrying out quaternization, maturing degradation, etiolation reaction, dissolving and grinding, viscose ripening, viscose filtration, defoaming, wet-method spinning forming, drafting and other relative process treatment steps and obtaining a functional fiber raw material by using common equipment for producing a common viscose short fiber, a special process formula and a spinning and drafting method. The invention solves a series of problems of difficult filtration, poor spinning and forming, instable quality of finished products, high consumption, low yield and the like existing in the production of single cellulose pulp, considers the characteristics of coolness, comfort, bacteriostasis, heath care and the like of natural bamboo fibers and also has the advantages of high wet modulus (Modal) fibers.

Description

Technical field: [0001] The invention relates to a kind of regenerated cellulose, especially a kind of high wet modulus bamboo, wood (or bamboo, cotton) mixed cellulose fiber manufacturing method. Background technique: [0002] Bamboo cellulose fiber with high wet modulus has the characteristics of good luster, bright color after dyeing, strong hygroscopicity, cool and breathable, etc., and is very popular among people. However, there are a series of production problems in the production of single bamboo cellulose pulp, such as difficult filtration, poor spinning formation, unstable quality of finished products, high consumption, and low production capacity, which to a certain extent affect the progress of large-scale production. The present invention is expanded on the basis of the application number 200910098913.0 filed by our company, and the name is "a method for manufacturing high wet modulus fibers". Invention content: [0003] The purpose of the present invention i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01D5/06D01D5/12D01D1/02D01D1/10D06B3/02C08B9/00
Inventor 冉国庆郑睿敏胡金龙
Owner HANGZHOU AUTOON ENVIRONMENTAL TECH CORP
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