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Preparation method of chitosan-contained viscose

A technology of viscose fiber and chitin, applied in the direction of wet spinning, artificial filament made of viscose, etc., can solve the problems of reducing fiber strength, low wet film amount, low elongation, etc., to achieve increased strength, The effect of reducing shrinkage

Active Publication Date: 2018-04-24
ZHONGKE TEXTILE RES INST QINGDAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Chitin has a large molecular weight and is insoluble in water. Adding it to viscose fibers will affect the hygroscopicity and air permeability of viscose fibers;
[0006] (2) Adding chitin to viscose fiber will reduce the strength of the fiber;
[0007] (3) The existing chitin viscose fiber has low elongation and low wet film content, and the pure spinning yarn made of it has high shrinkage rate and easy deformation of size

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1 A kind of preparation method of viscose fiber containing chitin

[0049] Include the following steps:

[0050] Step 1, the processing of chitin:

[0051] Including the following process:

[0052] (1) acid treatment

[0053] Prepare the organic acid into a 40% acid solution, then add chitin powder into the acid solution, treat at 100°C for 2 hours, and perform ultrasonic treatment at the same time, the ultrasonic power density is 130W / L, and the ultrasonic frequency is 80KHz to obtain a mixed liquid a;

[0054] The ratio of chitin powder to acid solution is 1g:30mL;

[0055] The organic acid, in parts by weight, includes: 15 parts of 2-hydroxyphosphinoacetic acid, 9 parts of oxaloacetic acid, 10 parts of chlorogenic acid, 2 parts of tannic acid, 3 parts of polyepoxysuccinic acid, ursolic acid 4 parts.

[0056] The chitin powder has a particle size of 22-30 μm, a molecular weight of 430,000-500,000, and an ash content of 0.3%.

[0057] (2) Alkali treat...

Embodiment 2

[0082] Embodiment 2 A kind of preparation method of viscose fiber containing chitin

[0083] Include the following steps:

[0084] Step 1, the processing of chitin:

[0085] Including the following process:

[0086] (1) acid treatment

[0087] Prepare the organic acid into a 42% acid solution, then add chitin powder into the acid solution, treat at 104°C for 2 hours, and conduct ultrasound at the same time. liquid a;

[0088] The ratio of chitin powder to acid solution is 1g:34mL;

[0089] The organic acid, in parts by weight, includes: 16 parts of 2-hydroxyphosphinoacetic acid, 9 parts of oxaloacetic acid, 12 parts of chlorogenic acid, 3 parts of tannic acid, 3 parts of polyepoxysuccinic acid, ursolic acid 5 servings.

[0090] The chitin powder has a particle size of 20-25 μm, a molecular weight of 400,000-470,000, and an ash content of 0.32%.

[0091] (2) Alkali treatment

[0092] Centrifuge the mixed liquid a at 104°C to obtain solid mixture b and acid liquid; add 3...

Embodiment 3

[0116] Embodiment 3 A kind of preparation method of viscose fiber containing chitin

[0117] Include the following steps:

[0118] Step 1, the processing of chitin:

[0119] Including the following process:

[0120] (1) acid treatment

[0121] Prepare the organic acid into a 45% acid solution, then add chitin powder into the acid solution, treat at 105°C for 2 hours, and perform ultrasonic treatment at the same time, the ultrasonic power density is 140W / L, and the ultrasonic frequency is 90KHz to obtain a mixed liquid a;

[0122] The ratio of chitin powder to acid solution is 1g: 36mL;

[0123] The organic acid, in parts by weight, includes: 18 parts of 2-hydroxyphosphinoacetic acid, 10 parts of oxaloacetic acid, 12 parts of chlorogenic acid, 4 parts of tannic acid, 4 parts of polyepoxysuccinic acid, ursolic acid 6 servings.

[0124] The chitin powder has a particle size of 25-30 μm, a molecular weight of 400,000-500,000, and an ash content of 0.35%.

[0125] (2) Alkali...

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Abstract

The invention provides a preparation method of chitosan-contained viscose. The preparation method comprises the steps of treating chitosan, preparing a viscose spinning solution, adding the chitosan,adding a dispersing agent and performing spinning; according to the step of treating the chitosan, the particle size of the treated chitosan is 5-10 nm, the length is 50-60 nm, and the ash content is0.05-0.07%; according to step of treating the chitosan, acid treatment, alkali treatment, purification treatment and homogenizing are included. According to the prepared chitosan-contained viscose, the content of the chitosan is 10-12%, the fineness is 1.80 dtex, the breaking strength is 5.6-5.8 cN / dtex, and the wet breaking strength is 4.0-4.4 cN / dtex. According to the prepared fiber, the influence of the chitosan on the hygroscopicity and breathability of the viscose is avoided, and the hygroscopicity and breathability of the chitosan-contained viscose are improved; the manufactured pure-spinning yarn shrinkage rate is lowered.

Description

technical field [0001] The invention belongs to the technical field of regenerated cellulose fiber production, and relates to a fiber preparation method, in particular to a chitin-containing viscose fiber preparation method. Background technique [0002] Existing conventional viscose fiber is regenerated cellulose fiber, and its products have the characteristics of good moisture absorption and air permeability, and comfortable wearing. With the improvement of people's living standards and the change of life concept, people pay more and more attention to the health care function of textiles, and hope that the existing viscose textiles can be improved in terms of antibacterial properties and the like. [0003] Chitin has good bactericidal and bacteriostatic properties, and has fibrous properties. In the prior art, chitin spinning stock solution is generally prepared by alkalization and xanthation, and then blended with viscose spinning stock solution to prepare Chitin viscose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/08D01D5/06
CPCD01D5/06D01F2/08
Inventor 黄效华刘洁
Owner ZHONGKE TEXTILE RES INST QINGDAO CO LTD