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Environmental-protection clean preparation method of special cellulose fiber for textiles

A technology of cellulose fibers and textiles, which is applied in the field of environmentally friendly and clean preparation of cellulose fibers for textiles, which can solve the problems of solvent pollution, cellulose degradation, etc., and achieve the effect of clean and pollution-free environment, not easy to degrade, and reliable technical support

Inactive Publication Date: 2018-01-19
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems that existing cellulose is difficult to melt when used in textiles, and solvent-dissolved spinning is easy to cause cellulose degradation and solvent pollution to the environment, in order to solve the above problems, the present invention provides an environmentally friendly and clean preparation method of cellulose fibers for textiles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The environmentally friendly and clean preparation method of the special cellulose fiber for textiles in this embodiment comprises the following steps:

[0024] S1. Freeze the cellulose with an ultra-low temperature freezer, place it in an ultrasonic continuous flow cell pulverizer for ultrasonic pulverization treatment, the conditions for ultrasonic pulverization treatment are: ultrasonic power 500W, frequency 25KHz, time 30min, the obtained nanocellulose fiber;

[0025] S2, dissolving the nanocellulose prepared in step S1 in a polyvinyl alcohol solution, preparing a cellulose spinning solution with a mass percent concentration of 20%, and then performing wet spinning to obtain cellulose micelles, wet spinning The specific steps of spinning are: filter the cellulose spinning solution at 10°C, vacuum defoam, place it in the spinning device, spray it out from the spinneret hole, enter the coagulation bath with a temperature of 20°C, and place it in the spinning device. ...

Embodiment 2

[0028] The environmentally friendly and clean preparation method of the special cellulose fiber for textiles in this embodiment comprises the following steps:

[0029] S1. Freeze the cellulose with an ultra-low temperature freezer, place it in an ultrasonic continuous flow cell pulverizer for ultrasonic pulverization, the conditions for ultrasonic pulverization are: ultrasonic power 800W, frequency 30KHz, time 20min, the obtained nanocellulose ;

[0030] S2, dissolving the nanocellulose prepared in step S1 in a polyvinyl alcohol solution, preparing a cellulose spinning solution with a mass percent concentration of 30%, and then performing wet spinning to obtain cellulose micelles, wet spinning The specific steps of spinning are: filter the cellulose spinning solution at 35°C, vacuum defoam, place it in the spinning device, spray it out from the spinneret hole, enter the coagulation bath with a temperature of 30°C, and coagulation forming in the coagulation bath to obtain cell...

Embodiment 3

[0033] The environmentally friendly and clean preparation method of the special cellulose fiber for textiles in this embodiment comprises the following steps:

[0034] S1. Freeze the cellulose with an ultra-low temperature freezer, place it in an ultrasonic continuous flow cell pulverizer for ultrasonic pulverization treatment, the conditions for ultrasonic pulverization treatment are: ultrasonic power 650W, frequency 27KHz, time 25min, the obtained nanocellulose ;

[0035] S2, dissolving the nanocellulose prepared in step S1 in a polyvinyl alcohol solution, preparing a cellulose spinning solution with a mass percent concentration of 25%, and then performing wet spinning to obtain cellulose micelles, wet spinning The specific steps of spinning are: filter the cellulose spinning solution at 18°C, vacuum defoam, place it in the spinning device, spray it out from the spinneret hole, enter the coagulation bath with a temperature of 25°C, and coagulation forming in the coagulation...

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Abstract

The invention relates to the technical field of textiles, in particular to an environmental-protection clean preparation method of special cellulose fiber for textiles. The method comprises the following steps: freezing cellulose by using an ultralow temperature refrigerating machine, and carrying out ultrasonic dispersion to obtain nanometer cellulose; dissolving the nanometer cellulose into a polyvinyl alcohol solution, pre-spinning to form a cellulose micelle in virtue of cohesiveness of polyvinyl alcohol, and further adopting hydrolytic enzyme to activate the periphery of the cellulose sothat the cellulose is quickly linked into a cellulose fiber micelle, and drying to obtain the cellulose fiber. According to the method, the production environment is clean and pollution-free, and thestructure of the cellulose cannot be damaged, so that the chemical structure of the cellulose fiber like natural cellulose is maintained, and the cellulose fiber has a relatively regular space structure. The defect that cellulose prepared cellulose fiber is easily degraded because of use of melt spinning and solvent spinning is overcome. The obtained cellulose fiber has an excellent mechanical property.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to an environmentally friendly and clean preparation method of cellulose fibers special for textiles. Background technique [0002] With the rapid development of social economy and the continuous improvement of people's living standards, multi-functional and comfortable clothing fabrics are more and more favored by consumers, so consumers have higher and higher requirements for the functionality of fabrics themselves. Cellulose is an important natural raw material for textile processing, such as cotton, hemp, wool, silk, etc., but it is still difficult to meet the growing needs of consumers in terms of output and performance. Many cellulose and protein end products are still produced using regeneration or derivatization methods. Due to the strong interaction of the polar groups of natural polymers, it is difficult to dissolve them directly in general solvents. Traditional processi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/00D06M16/00D01D5/06
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
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