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Desizing pretreatment method of textile

A textile and desizing technology, applied in textiles and papermaking, fiber treatment, biochemical fiber treatment, etc., can solve problems such as high consumption, resource protection and ecological environment threats, achieve mild reaction, improve desizing efficiency, equipment and process simple effect

Active Publication Date: 2015-03-25
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, desizing pretreatment is an important process in textile production. Traditional textile desizing pretreatment consumes a lot of water, energy and chemicals, and produces a large amount of high-concentration wastewater, which poses a serious threat to resource protection and ecological environment.

Method used

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  • Desizing pretreatment method of textile
  • Desizing pretreatment method of textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The invention provides a pretreatment method for desizing of textiles, the enzymatic desizing pretreatment method adopts such as figure 1 The supercritical carbon dioxide fluid desizing device of the shown structure is realized. The desizing device includes a desizing liquid storage tank 1 and a desizing tank 2 sealedly connected with the desizing liquid storage tank 1 through a connecting device 8 .

[0026] The desizing liquid storage tank 1 is a cylindrical tank body, and an inverted "mountain" type tubular fluid distributor 11 is installed inside the desizing liquid storage tank 1, which is mainly composed of three interconnected pipes, and the central pipe is a circulating fluid Inlet pipe 111, the bottom end of circulating fluid inlet pipe 111 is connected with the supercritical carbon dioxide fluid treatment system (not shown in the figure) with circulation pump; Two pipelines positioned at both sides are circulating fluid outlet pipe 112, two circulations The n...

Embodiment 2

[0044] The present invention provides a textile desizing pretreatment method, the enzymatic desizing pretreatment method is basically the same as the desizing pretreatment method described in Example 1, and will not be repeated here.

[0045] The differences are: the reaction temperature in this embodiment is 50° C., the pressure is 13 MPa, and the total time for desizing treatment is 1 h.

[0046] The test results of the weight loss rate and gross effect value of the desized textiles in this embodiment are: the weight loss rate is 6.0%, and the gross effect value is 7.0 em.

Embodiment 3

[0048] The present invention provides a textile desizing pretreatment method, the enzymatic desizing pretreatment method is basically the same as the desizing pretreatment method described in Example 1, and will not be repeated here.

[0049] The differences are: the reaction temperature in this embodiment is 60° C., the pressure is 13 MPa, and the total time for desizing treatment is 1 h.

[0050] The test results of the weight loss rate and gross effect value of the desized textiles in this embodiment are: the weight loss rate is 4.2%, and the gross effect value is 6.1 cm.

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Abstract

The invention discloses a desizing pretreatment method of textile, which belongs to the technical field of textile dyeing and finishing processing, and is designed for solving the problems of high water consumption, large waste water discharge amount, and the like in the traditional desizing technology. The method comprises the following steps: A. dissolving a surface active agent into a mixed solution of ethyl alcohol and water; B. feeding desizing enzyme into the mixed solution, and stirring until the system is clear to obtain desizing working liquid; C. putting the desizing working liquid into a supercritical carbon dioxide fluid treatment system; D. enabling the desizing working liquid to form microemulsion by a supercritical carbon dioxide medium, and carrying out desizing pretreatment on the textile under the conditions that the temperature is 30-95 DEG C, the pressure is 6-30 MPa, and the total pretreatment time is 0.5-24.0 hours. According to the desizing pretreatment method, the technology is simple, and the desizing pretreatment for the textile can be realized; the desizing efficiency of enzyme in the supercritical carbon dioxide medium can be improved by controlling the reaction parameters such as temperature, pressure and treatment time, so that the energy is saved, and the environment is protected.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, in particular to a method for pre-desizing textiles by using a supercritical carbon dioxide fluid. Background technique [0002] Supercritical carbon dioxide fluid enzymatic desizing technology has the characteristics of clean production such as ecology, environmental protection, energy saving and emission reduction, and is of great significance to change the current situation of high pollution and high energy consumption in traditional textile pretreatment. At present, biological enzymes have broad application prospects in dyeing and finishing processing, because enzyme preparations, as a kind of biological preparations, are non-toxic and harmless, and their development and application conform to the requirements of green processing and sustainable development. Among them, the application of desizing enzyme is relatively mature and extensive, and has been more and more accep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/00D06M16/00
CPCD06L1/06D06M16/00
Inventor 龙家杰刘仕琪
Owner SUZHOU UNIV
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