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Yak wool loose fiber supercritical carbon dioxide dyeing process method

A technology of carbon dioxide and process method, which is applied in the field of textile printing and dyeing, can solve the problem of no loose fibers of yak cashmere, and achieve the effect of good dyeing quality, low overall cost and short dyeing process

Inactive Publication Date: 2014-03-26
XUEZHOU THREE FLANNEL GROUP QINGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of modern science and technology, supercritical fluid technology has been increasingly valued by many countries in the world, but there is no related technology at home and abroad for supercritical carbon dioxide dyeing technology of yak wool fiber

Method used

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  • Yak wool loose fiber supercritical carbon dioxide dyeing process method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: First, put a certain amount of disperse dye in the dye kettle, and put the decolorized yak wool loose fiber into the dye kettle at the same time, and then open valve B (2) and valve C (3), Close valve A (1) and valve D (5), carbon dioxide flows out from the carbon dioxide storage tank through the heat exchanger, dye kettle, and enters the dyeing kettle. The carbon dioxide in the dye kettle and dyeing kettle system is pressurized to 7.3Mpa, and the carbon dioxide is in a supercritical state At this time, turn on the carbon dioxide circulation pump (4), heat the dyeing kettle to 90°C, the pressure is 24MPa, the time is 60min, open valve A (1), valve D (5), close valve C (3) and carbon dioxide circulation pump (4) , use the separation kettle to separate the dye in the carbon dioxide, the dye enters the dye kettle, the carbon dioxide enters the carbon dioxide storage tank through the carbon dioxide cooling system, separates for 20 minutes, the dyeing kettle is...

Embodiment 2

[0011] Example 2: First, put a certain amount of reactive disperse dye in the dye kettle, and put the decolorized yak wool loose fiber into the dye kettle at the same time, and then open valve B (2) and valve C (3) , close valve A (1) and valve D (5), carbon dioxide flows out from the carbon dioxide storage tank through the heat exchanger, the dye kettle, and enters the dyeing kettle. The carbon dioxide in the dye kettle and dyeing kettle system is pressurized to 7.3Mpa, and the carbon dioxide is supercritical. state, turn on the carbon dioxide circulation pump (4), heat the dyeing kettle to 120°C, the pressure is 28MPa, and the time is 45min, open valve A (1), valve D (5), close valve C (3) and carbon dioxide circulation pump (4 ), use the separation kettle to separate the dyes in the carbon dioxide, the dye enters the dye kettle, the carbon dioxide enters the carbon dioxide storage tank through the carbon dioxide cooling system, separates for 30 minutes, the dyeing kettle is ...

Embodiment 3

[0012] Example 3: First, put a certain amount of reactive disperse dyes in the dye kettle, and put the decolorized yak wool loose fibers into the dye kettle at the same time, and then open valve B (2) and valve C (3) , close valve A (1) and valve D (5), carbon dioxide flows out from the carbon dioxide storage tank through the heat exchanger, the dye kettle, and enters the dyeing kettle. The carbon dioxide in the dye kettle and dyeing kettle system is pressurized to 7.3Mpa, and the carbon dioxide is supercritical. state, turn on the carbon dioxide circulation pump (4), heat the dyeing kettle to 110°C, pressure 26MPa, time 50min, open valve A (1), valve D (5), close valve C (3) and carbon dioxide circulation pump (4 ), the dye in the carbon dioxide is separated by the separation tank, the dye enters the dye tank, the carbon dioxide enters the carbon dioxide storage tank through the carbon dioxide cooling system, and is separated for 25 minutes. The dyeing tank is depressurized, a...

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Abstract

The invention discloses a yak wool loose fiber supercritical carbon dioxide dyeing process method. The method is characterized by consisting of the following processes: filling materials into a dye kettle, filling the materials into the dye kettle, dyeing, separating and recovering, pressure relieving and verifying. Compared with the prior art, the method has the following characteristics that 1, a carbon dioxide medium is used in a dyeing process, the pollution is avoided, and clean production is realized; 2, 40 percent of dye can be recovered and utilized, and the waste and the pollution are avoided; 3, 85 percent of carbon dioxide can be recovered and utilized after a yak wool loose fiber is dyed; 4, the dyeing process flow is short, and the overall dyeing process is controlled automatically; 5, the yak wool loose fiber is dyed uniformly, and the color fastness is high; 6, the comprehensive cost is low; 7, subsequent operations such as cleaning, dewatering and drying after the yak wool loose fiber is dyed are not required.

Description

1. Technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a supercritical carbon dioxide dyeing process of yak wool fiber 2. Technical background [0002] Traditional bulk fiber dyeing generally uses an open dyeing vat. Before dyeing, the bulk fiber is put into the dyeing vat. After the cover is added, the heating device is turned on and the power pump is started for dyeing. Clean water for washing or soaping to remove the floating color on the fiber, and then hang out the dyeing cage to take out the fiber and then dehydrate and dry. It has caused a lot of waste of energy and pollution of the environment, wasting huge water resources, and does not comply with the latest environmental policies for water conservation and emission reduction. [0003] The traditional textile dyeing and finishing industry suffers from serious water pollution, and the problem of damage to resources and environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/94D06P1/16D06P1/38D06P3/04
Inventor 韩国辉吴延云赵雷沈成义马海龙
Owner XUEZHOU THREE FLANNEL GROUP QINGHAI
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