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A kind of textile desizing pretreatment method

A textile and desizing technology, which is applied in the direction of textiles and papermaking, fiber treatment, biochemical fiber treatment, etc. It can solve the problems of resource protection, ecological environment threat, and large consumption, and achieves improved desizing efficiency, mild reaction, and convenient operation. Effect

Active Publication Date: 2017-01-04
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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  • A kind of textile desizing pretreatment method
  • A kind of textile desizing pretreatment method
  • A kind of textile desizing pretreatment method

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 for textiles, belongs to the technical field of textile dyeing and finishing, and is designed to solve the problems of high water consumption and large waste water discharge in the traditional desizing process. The method comprises the following steps: A. dissolving the surfactant in the mixed solution of ethanol and water; B. adding desizing enzyme into the mixed solution and stirring until the system is clarified to obtain a desizing working solution; C. The sizing working fluid is placed in a supercritical carbon dioxide fluid treatment system; D. The desizing working fluid uses a supercritical carbon dioxide medium to form a microemulsion, at a temperature of 30°C-95°C, a pressure of 6Mpa-30Mpa, and a total desizing treatment time of 0.5 Under the condition of h‑24.0h, the textiles are pretreated for desizing. The invention has simple process, realizes the pretreatment of textiles for desizing, improves the desizing efficiency of enzymes in supercritical carbon dioxide medium by controlling reaction parameters such as temperature, pressure and treatment time, and is energy-saving and environment-friendly.

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 Patents(China)
IPC IPC(8): D06M23/00D06M16/00
Inventor 龙家杰刘仕琪
Owner SUZHOU UNIV