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Solubilizing and dyeing method of supercritical CO2 fluid disperse dye

A technology of disperse dyes and dyeing methods, applied in the field of supercritical CO2 fluid disperse dye solubilization and dyeing, can solve problems such as pollution and water shortage, and achieve the effect of saving water resources and improving solubility

Active Publication Date: 2014-04-23
CHENGDU TEXTILE COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to: provide a kind of supercritical CO 2 Fluid disperse dye solubilized dyeing method, aiming to solve the problems of water resource shortage and pollution caused by the existing water dyeing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 1g of pure disperse blue dye filter cake and 2ml-8ml of solubilizer and mix it into the dye kettle; weigh 100g of polyester fiber fabric and wind it on the dyeing shaft, and put it into the dyeing kettle; input liquid carbon dioxide through the booster pump , to increase the system pressure to 20MPa-30MPa; heating the system temperature to 100°C-130°C; 2 The dyeing fluid circulates between the inner and outer layers of the crimped polyester fiber fabric, which is conducive to the uniform adsorption, penetration and fixation of the dyes inside the fiber; keep the pressure at 20MPa-30MPa, the temperature at 100°C-130°C, and the cycle dyeing time reaches 40min-120min; After the cycle dyeing time is completed, reduce the system pressure to 3MPa-8MPa, reduce the system temperature to 20°C-50°C, and recover the dye, solvent and carbon dioxide through the separation tank; input a certain amount of carbon dioxide through the booster pump to reach a certain supercritical c...

Embodiment 2

[0040] Weigh 3g of pure disperse blue dye filter cake and 10ml-25ml of solubilizer and mix them into the dye kettle; weigh 100g of polyester fiber fabric and wind it flat on the dyeing shaft, and put it into the dyeing kettle; input liquid carbon dioxide through a booster pump , to increase the system pressure to 20 MPa -30MPa; heat the system temperature to 100°C-130°C; 2 The dyeing fluid circulates between the inner and outer layers of the crimped polyester fiber fabric, which is conducive to the uniform adsorption, penetration and fixation of the dyes inside the fiber; keep the pressure at 20MPa-30MPa, the temperature at 100°C-130°C, and the cycle dyeing time reaches 40min-120min; After the cycle dyeing time is completed, reduce the system pressure to 3MPa-8MPa, reduce the system temperature to 20°C-50°C, and recover the dye, solvent and carbon dioxide through the separation tank; input a certain amount of carbon dioxide through the booster pump to reach a certain supercriti...

Embodiment 3

[0042] Weigh 1g of pure disperse red dye filter cake and put it into the dye kettle; weigh 100g of polyester fiber fabric and wind it flat on the dyeing shaft, and put it into the dyeing kettle; input liquid carbon dioxide through the booster pump to increase the system pressure to 20MPa- 30MPa; the temperature of the heating system reaches 100°C-130°C; the supercritical CO 2 The dyeing fluid circulates between the inner and outer layers of the crimped polyester fiber fabric, which is conducive to the uniform adsorption, penetration and fixation of the dyes inside the fibers; Ratio 1:2-1:10, inject the solubilizer into the dyeing system at a flow rate of 1ml-10ml / min; keep the pressure at 20MPa-30MPa, the temperature at 100°C-130°C, and the cycle dyeing time reaches 40min-120min; the cycle dyeing time is completed Finally, reduce the system pressure to 3MPa-8MPa, reduce the system temperature to 20°C-50°C, and recover dyes, solvents and carbon dioxide through the separation ta...

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Abstract

The invention is applicable to the field of a dyeing process and provides a solubilizing and dyeing method of a supercritical CO2 fluid disperse dye. According to the solubilizing and dyeing method, supercritical CO2 fluid is used for dissolving a disperse dye; a solubilizing agent is added to dye a fiber textile; meanwhile, dyeing process conditions including pressure, temperature and time and the like are optimized, and the solubility, the dyeing depth and the like of the disperse dye in the supercritical CO2 fluid are improved.

Description

technical field [0001] The invention belongs to the field of dyeing technology, in particular to a kind of supercritical CO 2 Fluid disperse dye solubilization dyeing method. Background technique [0002] With the rapid development of the textile industry, environmental pollution caused by the textile production process has attracted increasing attention. The country has successively formulated a series of strict environmental regulations to supervise the sewage treatment and discharge in the industry. According to statistics, the ratio of fabric weight to water consumption in textile printing and dyeing processing is as high as 1:100 to 1:150, and the national water consumption in printing and dyeing processing is estimated to be 1.6 billion tons throughout the year. At present, the proportion of reclaimed water reuse in the production process of this industry is very low, while the proportion of sewage treatment and discharge in the production cost is gradually increasin...

Claims

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Application Information

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IPC IPC(8): D06P1/94D06P1/16
Inventor 阳建斌夏平郑光洪张丽平
Owner CHENGDU TEXTILE COLLEGE
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