A kind of dyeing auxiliary agent for supercritical carbon dioxide cotton fiber dyeing and its preparation and application

A technology of dyeing auxiliaries and carbon dioxide, which is applied in the field of cotton fiber dyeing, can solve the problems of cotton fiber dyeing difficulties, achieve remarkable economic and environmental benefits, high color fastness, and high color depth

Active Publication Date: 2018-11-09
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the supercritical carbon dioxide medium itself cannot destroy the hydrogen bonds of cellulose, so that the cellulose swells, and the dyeing of cotton fibers in supercritical carbon dioxide is very difficult.

Method used

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  • A kind of dyeing auxiliary agent for supercritical carbon dioxide cotton fiber dyeing and its preparation and application
  • A kind of dyeing auxiliary agent for supercritical carbon dioxide cotton fiber dyeing and its preparation and application
  • A kind of dyeing auxiliary agent for supercritical carbon dioxide cotton fiber dyeing and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1g curcumin is pulverized in 80 mesh fineness pulverizers, then puts in the dye kettle of supercritical carbon dioxide dyeing device (flow process is as shown in Fig. 1 in reference 1), the B in cotton loose fiber and dyeing auxiliary agent Put the components into the dyeing kettle, close the dyeing kettle, fill supercritical carbon dioxide into the supercritical dyeing device, heat up to make the system temperature 140°C, open the high-pressure system to make the pressure 25Mpa, and pass the auxiliary agent pump under this condition Fill the system with component A, wherein the dyeing auxiliaries are composed of 55% component A and 45% component B (component B is 100% B1), and the dyeing time is 120min; then release the pressure to 4Mpa, at 40 Carbon dioxide and dyes are recovered at ℃; the pressure is released, the temperature is lowered to normal, and the dyeing kettle is opened to obtain dyed cotton fibers. The dyed cotton fibers were washed with acetone, and then w...

Embodiment 2

[0040]1g curcumin is pulverized in 80 mesh fineness pulverizers, then puts in the dye kettle of supercritical carbon dioxide dyeing device (flow process is as shown in Fig. 1 in reference 1), the B in cotton loose fiber and dyeing auxiliary agent Put the components into the dyeing kettle, close the dyeing kettle, fill supercritical carbon dioxide into the supercritical dyeing device, heat up to make the system temperature 140°C, open the high-pressure system to make the pressure 25Mpa, and pass the auxiliary agent pump under this condition Fill the A component like the system, wherein, the dyeing auxiliaries are composed of 55% A component and 45% B component (B component is 100% B2), and the dyeing time is 120min; then release the pressure to 4Mpa, at 40 Carbon dioxide and dyes are recovered at ℃; the pressure is released, the temperature is lowered to normal, and the dyeing kettle is opened to obtain dyed cotton fibers. The dyed cotton fibers were washed with acetone, and th...

Embodiment 3

[0042] 1g curcumin is pulverized in 80 mesh fineness pulverizers, then puts in the dye kettle of supercritical carbon dioxide dyeing device (flow process is as shown in Fig. 1 in reference 1), the B in cotton loose fiber and dyeing auxiliary agent Put the components into the dyeing kettle, close the dyeing kettle, fill supercritical carbon dioxide into the supercritical dyeing device, heat up to make the system temperature 140°C, open the high-pressure system to make the pressure 25Mpa, and pass the auxiliary agent pump under this condition Fill the A component like the system, wherein, the dyeing auxiliaries are composed of 55% A component and 45% B component (B component is 100% B3), and the dyeing time is 120min; then release the pressure to 4Mpa, at 40 Carbon dioxide and dyes are recovered at ℃; the pressure is released, the temperature is lowered to normal, and the dyeing kettle is opened to obtain dyed cotton fibers. The dyed cotton fibers were washed with acetone, and t...

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Abstract

The invention relates to a dyeing auxiliary agent for dyeing supercritical carbon dioxide cotton fiber as well as a preparation and an application thereof, and belongs to the field of cotton fiber dyeing. The dyeing auxiliary agent for dyeing supercritical carbon dioxide cotton fiber is a composition, and the composition comprises the following components according to the mol ratio: 55-75% of a component A, and 25-45% of a component B, wherein the component A is a compound shown in a formula I, and the component B is one or several kinds of compounds shown in a formula II or a formula III, and R1 is -F(CF)4, -F(CF)6 or -F(CF)8; R2 is -F(CF)4, -F(CF)6 or -F(CF)8. The outstanding features of the dyeing auxiliary agent is that original dyeing technology of the cotton fabric is changed, natural dyes are used for dyeing cotton fiber, and the method has the characteristics of high color depth, high color fastness, clean production, and substantial economic benefits and environment benefits.

Description

technical field [0001] The invention relates to a dyeing auxiliary agent for cotton fiber dyeing with supercritical carbon dioxide and its preparation and application, belonging to the field of cotton fiber dyeing. Background technique [0002] The traditional dyeing method of cotton fiber uses water as the medium, and completes the dyeing of cotton fiber by adding a large amount of dyes, salts and auxiliaries during the dyeing process. This method not only causes the printing and dyeing industry to compete with humans and animals for water, but also the inactivated dyes, salts and auxiliaries contained in the dyeing wastewater cause serious pollution to the environment and restrict the sustainable development of the textile printing and dyeing industry. [0003] Supercritical carbon dioxide anhydrous dyeing technology refers to the process of dyeing fibers in supercritical carbon dioxide medium. It has the advantages of non-toxic, tasteless, and low recycling cost of dyeing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/62D06P1/651D06P1/94D06P1/34D06P3/60
CPCD06P1/34D06P1/622D06P1/623D06P1/65156D06P1/94D06P3/60
Inventor 赵虹娟郑来久闫俊熊小庆刘秒魏菊
Owner DALIAN POLYTECHNIC UNIVERSITY
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