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Active dye cold pad fixation method

A technology of reactive dyes and cold stacking, which is applied in the field of reactive dyes cold stacking color fixing process, can solve the problems of greater influence of shade, easy hydrolysis of reactive dyes, large batch difference of fabrics, etc., to achieve stable shade, smooth dyeing process, The effect of small batch difference

Inactive Publication Date: 2017-07-25
WUXI HAIJIANG PRINTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The conventional method of cold-stacking and color fixing of reactive dyes is that the dyeing solution of reactive dyes and lye are mixed through a proportional pump and then added to the rolling tank, then the fabric is dipped in the dyeing solution, rolled up, and finally stacked at room temperature (of course, the stacking is slow. Slow rotation, at a speed of 12r / min); but the disadvantage of this cold dyeing method is that the reactive dyes are easily hydrolyzed when the dye solution and lye are mixed, and the printed fabric has a large batch difference and a great influence on the shade; The requirement for the size of the trough is high (the rolling trough should not be too large, if it is too large, there will be more lye, and the reactive dyes will be more easily hydrolyzed), and the temperature of the dyeing solution is high; the level of the dyeing solution has a greater impact on the shade

Method used

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  • Active dye cold pad fixation method

Examples

Experimental program
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Effect test

Embodiment 1

[0019] The reactive dye cold-batch color fixing process of dyeing cotton fabric into a red color, using Everzol C reactive dye (powder) and water to prepare a dye solution (the volume of the padding tank is 100L, and 3 g / L of Resist salt S (sodium 3-nitrobenzene sulfonate), wherein the dosage of reactive red 3BS is 3.2 g / L, the dosage of reactive yellow RW is 0.35 g / L, and the dosage of reactive blue BB133 is 0.07 g / L. Pad the above-mentioned dyeing solution to complete the pad dyeing (with a liquid rate of 65%), but add 10L of water to the padding tank before starting the pad dyeing, and then use hot air to dry the cotton fabrics after pad dyeing. Drying and drum drying, in which the hot air drying adopts a hot air drying box, and the drum drying adopts a drum dryer. Each drum dryer is equipped with 10 drying drums, and the pressure in each drying drum is The drying temperature is 2KG / cm2; the drying temperature of the hot air drying box is 80°C, and the drying temperature of...

Embodiment 2

[0021] The reactive dye cold-batch color-fixing process of dyeing cotton fabrics into gray, using Everzol C reactive dyes and water to prepare a dye solution (the volume of the padding tank is 100L, and 3 g / L of anti-staining salt S, 1g / L penetrant Y-208), wherein the dosage of reactive red 3BS is 0.3g / L, the dosage of reactive orange RW is 0.2g / L, and the dosage of reactive black B is 3g / L. Pad dyeing is completed with the dye liquor (liquid-carrying rate 62%), but 8L of water is added to the padding trough before the initial start-up of the pad dyeing, and then the cotton fabrics after pad dyeing are dried with hot air and then with a drying cylinder. Drying, wherein the hot air drying adopts a hot air drying box, and the drying drum drying adopts a drying drum dryer. Each drying drum dryer is equipped with 10 drying drums, and the pressure of each drying drum is 1KG / cm2; The drying temperature of the drying box is 80°C, and the drying temperature of the drum dryer is 100°C....

Embodiment 3

[0023] The reactive dye cold batch color fixing process of dyeing cotton fabrics blue, using Everzol C reactive dyes and water to prepare a dyeing solution (the volume of the padding tank is 100L, and 3 g / L of anti-staining salt S is added to the dyeing solution , 1g / L penetrating agent Y-208), wherein the dosage of reactive red 3BS is 0.2g / L, and the dosage of reactive black B is 3g / L, and padding the cotton fabric with the dye solution prepared above to complete the pad dyeing (with liquid rate of 58%), but add 9L of water to the padding trough before starting the pad dyeing, and then use hot air drying and drying drum drying for the cotton fabric after pad dyeing, of which hot air drying is hot air drying Drying box, drum drying adopts drum dryer, each drum dryer is equipped with 10 drying drums, and the pressure of each drying drum is 1.5KG / cm2; the drying temperature of the hot air drying box is 80°C, and the drying temperature of the drum dryer is 100°C. Then pad the dr...

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Abstract

The invention discloses an active dye cold pad fixation method. The method comprises dipping a fabric into a padding liquor, drying the fabric, dipping the fabric into a base rolling liquid, carrying out rolling, carrying out stacking at the normal temperature, carrying out unrolling, and carrying out water washing. The dye is an active dye aqueous solution. Compared with the conventional active cold pad fixation process, the method provided by the invention is free of mixing of the base liquid and dye and putting of the base liquid and dye into a rolling tank so that the problem that the active dye is easily hydrolyzed in the presence of a base in cold pad fixation is solved, the use amount of the active dye is reduced, batch difference is small, color light influence is small and color light is stable. Water and dye are supplied before pad dyeing and base rolling and the dyeing process is smooth and stable.

Description

technical field [0001] The invention relates to a reactive dye cold pile color fixing process. Background technique [0002] The so-called cold-stack dyeing means that the fabric is dipped with dyeing solution and lye at low temperature, and the dyeing solution is adsorbed on the surface of pure cotton fabric fibers by rolling and rolling, and then piled up at room temperature for a certain period of time ( Bonding time) and rotate slowly to complete the process of dye adsorption, diffusion and color fixation, and finally wash with water to complete the dyeing method. The process includes three stages of padding working solution, stacking and color fixing, and water washing. [0003] The conventional method of cold-stacking and color fixing of reactive dyes is that the dyeing solution of reactive dyes and lye are mixed through a proportional pump and then added to the rolling tank, then the fabric is dipped in the dyeing solution, rolled up, and finally stacked at room temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/10D06P1/38D06P1/62D06P3/66D06P3/85D06P5/02D06B3/18D06B23/20D06B15/00
CPCD06P5/10D06B3/18D06B15/00D06B23/20D06P1/38D06P3/66D06P3/8228D06P5/02
Inventor 郭新民
Owner WUXI HAIJIANG PRINTING & DYEING
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