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Method for synthesizing grafted lysine viscose fibers

A viscose fiber and lysine technology, applied in plant fiber, fiber treatment, biochemical fiber treatment, etc., can solve the poor performance of acrylic fiber dyeing, washing, skin affinity, etc., cannot use physical and chemical properties, and cannot be reused and other issues, to achieve the effect of low production cost, huge social value and economic benefits, and easy operation

Inactive Publication Date: 2018-03-23
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deficiency of this method is: 1. the principle of this method is the reaction of cyano group and amino group, can only take place on the acrylic fiber, and can not be used on the fiber with better physical and chemical properties such as cotton fiber, viscose fiber
The dyeing, washing, and skin-friendly properties of acrylic fiber are not good, which seriously limits the scope of application of this method; ②The reaction temperature is high and difficult to control, and the raw materials and other products after the reaction cannot be reused, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for synthesizing grafted lysine viscose fibers, its concrete process steps are as follows:

[0025] (1) Preparation of purified viscose fiber

[0026] According to the ratio of 1:30 (kg / L) of the volume ratio of the sodium hydroxide solution of 0.5% sodium hydroxide solution according to commercially available viscose fiber mass and mass percentage concentration, it is 0.5% that commercially available viscose fiber is dispersed in mass percentage concentration In sodium hydroxide solution, the temperature was raised to 80°C, treated for 0.5h, placed in a three-legged centrifuge, centrifuged at a speed of 2000r / min for 10min, and the centrifuged liquid and centrifuged viscose fibers were collected respectively. The collected centrifugal viscose fibers were washed with pure water at a centrifugal speed of 2000r / min until the pH of the washed centrifuged liquid was 7.0. Collect and wash centrifugal viscose fiber and washing centrifugate respectively, to the washi...

Embodiment 2

[0036] A method for synthesizing grafted lysine viscose fibers, its concrete process steps are as follows:

[0037] (1) Preparation of purified viscose fiber

[0038] According to the ratio of 1:45 (kg / L) of the volume ratio of the sodium hydroxide solution of 0.8% sodium hydroxide solution according to commercially available viscose fiber mass and mass percentage concentration, it is 0.8% that commercially available viscose fiber is dispersed in mass percentage concentration In sodium hydroxide solution, the temperature was raised to 85°C, treated for 1.0 h, placed in a three-legged centrifuge, centrifuged at a speed of 3000 r / min for 15 min, and the centrifuged liquid and centrifuged viscose fibers were collected respectively. The collected centrifuged viscose fibers were washed with pure water at a centrifugal speed of 3000r / min until the pH of the centrifuged liquid was 7.5. Collect and wash centrifugal viscose fiber and washing centrifugate respectively, to the washing c...

Embodiment 3

[0048] A method for synthesizing grafted lysine viscose fibers, its concrete process steps are as follows:

[0049] (1) Preparation of purified viscose fiber

[0050] According to the ratio of the volume ratio of 1:60 (kg / L) between the commercially available viscose fiber quality and the mass percent concentration of 1.0% sodium hydroxide solution, the commercially available viscose fiber is dispersed in a mass percent concentration of 1.0%. In sodium hydroxide solution, the temperature was raised to 90°C, treated for 1.5 hours, placed in a three-legged centrifuge, centrifuged at a speed of 4000r / min for 20 minutes, and the centrifuged liquid and centrifuged viscose fibers were collected respectively. The collected centrifuged viscose fibers were washed with pure water at a centrifugal speed of 4000r / min until the pH of the centrifuged liquid was 8.0. Collect and wash centrifugal viscose fiber and washing centrifugate respectively, to the washing centrifugal viscose fiber of...

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Abstract

The invention provides a method for synthesizing grafted lysine viscose fibers and belongs to the technical field of modification of fiber materials. According to the method, commercially available viscose fibers and lysine are taken as raw materials, and the grafted lysine viscose fibers with good skin-friendly property, antibacterial property and dyeing property can be prepared stably through steps as follows: preparation of purified viscose fibers, preparation of carboxylated viscose fibers, preparation of ethylene glycol non-aqueous reaction media, preparation of the grafted lysine viscosefibers and preparation of purified ethylene glycol. The carboxylated viscose fibers and the grafted lysine viscose fibers are produced under catalysis of glucose oxidase and protease in sequence, thegrafted lysine viscose fibers are prepared in the ethylene glycol non-aqueous reaction media, reaction conditions are mild, reaction specificity and reaction efficiency are high, no by-products or three wastes are produced, and the method is a typical green production technology; the grafted lysine viscose fibers synthesized with the method are covered with amino acid, can be widely applied to the fields such as textiles, clothes, food and the like and have great social value and economic benefits.

Description

1. Technical field [0001] The invention belongs to the technical field of fiber material modification, and in particular relates to a method for synthesizing grafted lysine viscose fiber. 2. Background technology [0002] Rubber fiber, commonly known as rayon, has good water absorption, warmth, breathability, and soft touch, and is widely used in the textile industry. However, viscose fibers also have defects such as easy elongation, easy deformation, poor elasticity, high shrinkage rate, and low skin affinity. Therefore, improving the physical, chemical and clothing properties of the fiber has important scientific value, application prospects and market potential. [0003] The main component of human skin is collagen. Collagen is a kind of biological polymer substance, widely present in human skin and other organs, and has the functions of moisturizing skin, delaying aging, beautifying, and reducing wrinkles. The basic structural unit of collagen is 19 kinds of amino acid...

Claims

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Application Information

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IPC IPC(8): D06M13/342D06M16/00D06M13/148D06M101/06
CPCD06M13/148D06M13/342D06M16/003D06M2101/06
Inventor 尹思力江文杨洋倪科张海龙朱云阳凌梦晨周小华
Owner CHONGQING UNIV
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