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supercritical co for textiles 2 Fluid dye composition and dyeing system and method

A technology for dye compositions and textiles, which is applied in the field of selection and dyeing systems of three primary color disperse dyes, can solve the problems of little research on color matching, no literature reports and practical applications, etc., and achieves excellent color fastness to washing and dyeing. Good effect, avoid the effect of competition

Active Publication Date: 2020-12-22
亚临界(上海)技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, at home and abroad, supercritical CO 2 In the research of fluid dyeing, most of them are dyed with a single dye, and there are few studies on color matching, and there are no literature reports and precedents for practical applications.

Method used

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  • supercritical co for textiles <sub>2</sub> Fluid dye composition and dyeing system and method
  • supercritical co for textiles <sub>2</sub> Fluid dye composition and dyeing system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A textile with supercritical CO 2 The dyeing system of the fluid dye composition comprises a carbon dioxide steel cylinder connected in sequence, a heat exchanger E1, a circulation tank D1, a booster pump D2, a dye kettle D3, a dyeing kettle D4, and a separation kettle D5, and the fluid outlet of the dyeing kettle D4 is connected to the A circulating pump P2 is also arranged between the fluid inlets of the dye tank D3.

[0029] A carbon dioxide loop is also provided between the carbon dioxide outlet of the separation tank D5 and the carbon dioxide inlet of the heat exchanger E1. A heat exchanger is connected to the fluid inlet of the dye kettle D3 and the fluid inlet of the dye kettle D4, and a detector of an online monitor is also connected to the fluid outlet of the dye kettle D3 and the fluid outlet of the dye kettle D4.

Embodiment 2

[0031] Utilize the method that embodiment 1 dyeing system carries out dyeing, concrete technological process is:

[0032] (1) Loading and pressurization: Put the textiles into the dyeing kettle, put the above-mentioned dyes mixed evenly into the dyeing kettle, connect the whole dyeing system, and fill the carbon dioxide through the booster pump (pressurized to 20~28MPa), At the same time, control the temperature and pressure of the dyeing kettle and dyeing kettle to reach the preset value (20~28MPa, temperature 110~180℃);

[0033] (2) Dyeing and leveling: close the valves of the booster pump and the separation tank, turn on the circulation pump, and start dyeing, so that the fluid circulates between the dye tank and the dye tank; at the same time, the change of the dye ratio during the dyeing process is detected online until the dyeing process is completed. complete;

[0034] (3) Residual dye recovery: After the dyeing is completed, the system gradually cools down; when the t...

Embodiment 3

[0037] The compatibility of disperse dyes is mainly determined by the lifting power and dyeing rate of dyes. In order to avoid the phenomenon of "competitive dyeing", when we screen three-color dyes, we must require good compatibility of the three dyes. Utilize embodiment 2 dyeing method to carry out the screening of three primary color disperse dyes:

[0038] The concentrations of the three dyes are represented by x, y, and z respectively, and the deviation is represented by P; the concentration ratio at the entrance of the dyeing kettle is: x 1 :y 1 :z 1 , the ratio to x is (x 1 / x 1 ):(y 1 / x 1 ):(z 1 / x 1 )=1:(y 1 / x 1 ):(z 1 / x 1 ); The concentration ratio of dyeing kettle outlet is: x 2 :y 2 :z 2 , the ratio relative to x is: 1:(y 2 / x 2 ):(z 2 / x 2 ).

[0039] The proportional deviation of the first set of detection data P=(y 2 / x 2 -y 1 / x 1 ) 2 +(z 2 / x 2 -z 1 / x 1 ) 2 , the deviation is 0, indicating that no competition occurs at all, th...

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Abstract

The invention belongs to the technical field of anhydrous dyeing of textile and particularly relates to a dyeing technology of textile in a supercritical CO2 fluid with three-primary color disperse dye. At least two of the three-primary color dye including C.I. disperse red 140, C.I. disperse yellow and C.I. disperse blue 56 are mixed in any ratio. All the disperse dyes are well compatible, are suitable to be used for supercritical CO2 fluid dying and can be combined to dye textile in various colors. The dyeing system of the composition comprises a CO2 steel cylinder, a booster pump, a dye kettle, a dyeing kettle and a separation kettle which are sequentially connected. A circulating pump is also arranged between a fluid outlet of the dyeing kettle and a fluid inlet of the dye kettle. Online detection is adopted in the dyeing process of the supercritical CO2 fluid, the proportion change of the three-primary color dye can be detected in real time, and competitive dyeing phenomenon can be avoided.

Description

technical field [0001] The invention belongs to the technical field of anhydrous dyeing of textiles, in particular to three primary color disperse dyes in supercritical CO 2 Dyeing technology of textiles in fluid, especially selection of three primary color disperse dyes and dyeing system and method. Background technique [0002] Supercritical CO 2 Compared with traditional dyeing methods, fluid dyeing technology has the advantages of water saving, environmental protection, energy saving, and no need to use additives; its pretreatment, dyeing, and cleaning can be completed in one step, and the dyeing time is short, which can shorten the production cycle and improve economic benefits. It is of great practical significance to promote cleaner production, energy saving and emission reduction. [0003] At present, at home and abroad, supercritical CO 2 In the study of fluid dyeing, most of them are dyed with a single dye, and there are few studies on color matching, and there ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/94D06P1/16D06P5/00
CPCD06P1/16D06P1/94D06P5/00
Inventor 郑瑾刘峻岭王杨柳王帅刘凡焦明立张晓莉
Owner 亚临界(上海)技术有限公司
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