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Reactive dye moist fixation and dyeing method

A technology of reactive dyes and dyeing methods, which is applied in the field of moisture fixation after dyeing with reactive dyes, can solve problems such as dull color and heavy black gas, and achieve the effects of flexible application of varieties, reducing swelling, and shortening the process flow

Active Publication Date: 2021-10-22
HUAFANG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to provide a method for continuous dyeing of reactive dyes, which can reduce energy consumption and solve the problems of large amount of inorganic salts and poor penetration in the conventional reactive dye padding, drying, padding and steaming process. Improve the problems of conventional cold pad batch process, such as dull color and heavy black gas, and adopt the method of the present invention to have improved color fixation rate, fabric color depth, no color difference, no seam print phenomenon, and no seam print defects

Method used

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  • Reactive dye moist fixation and dyeing method
  • Reactive dye moist fixation and dyeing method
  • Reactive dye moist fixation and dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1

[0091] Example 1 and Comparative Example 1: respectively adopt the moisture-fixing dyeing method and the traditional pad-drying-pad-steaming process to dye cellulose fibers Fabric (different dye dosage)

[0092] Fabric: Cotton Fabric, Size: C 20s×16s 128×60 57 / 8”, Gingham

[0093] In Example and Comparative Example 1, Annuosu Navy Blue L-3G, Annuosu Yellow L-3R and Annuosu Red L-S were selected for color matching, and the proportions of the three dyes by weight are as follows:

[0094] Anosul Navy Blue L-3G 86%

[0095] Anoxin Yellow L-3R 6.5%

[0096] Anosol Red L-S 7.5%

Embodiment 1

[0098] The tide-fixed color technological process that embodiment 1 adopts:

[0099] Weighing (according to the process prescription to weigh the dye and color-fixing alkali respectively)→chemical material (the dye is chemically mixed in one chemical material tank; caustic soda and soda ash are chemically materialized in another chemical material tank to form a color-fixing alkali solution)→ Feeding (add the dye solution and color-fixing alkali solution to the same rolling tank through a proportional pump according to the ratio of 4:1) → padding dye and color-fixing alkali mixed solution (passing ratio 65%) → pre-baking (80°C , control the moisture content of the cloth surface to 20%) → synchronous rolling → plastic film sealing → stacking (stacking temperature 30°C, stacking time 24h) → washing → soaping → washing → drying.

Embodiment 2 and comparative example 2

[0108] Embodiment 2 and comparative example 2: respectively adopt moisture-fixed color dyeing method and traditional pad-drying-pad-steaming process to dye cellulose fiber Fabric (different cold pad batch process)

[0109] Fabric: Cotton Fabric, Size: C 20s×16s 128×60 57 / 8”, Gingham

[0110] The formulas of the dyeing solutions of Example 2 and Comparative Example 2 are: destaramase RGB golden yellow 20g / L;

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Abstract

The invention relates to a reactive dye moist fixation and dyeing method. The method comprises the following steps of padding of a fabric in a dye liquor containing a reactive dye and an alkaline agent, pre-drying, rolling and piling. The method can reduce the energy consumption, solves the problem of relatively high inorganic salt consumption in a conventional reactive dye pad-drying pad-steaming process, improves the technical problem of relatively long piling time in a conventional cold pad-batch process, and has the advantages of improved fixation rate, high fabric color yield, no color difference, no phenomenon of seam allowance printing frequently occurring in conventional cold pad-batch dyeing and no seam allowance printing defects. Furthermore, the reactive dye moist fixation and continuous dyeing method can also be used for one-step dyeing of a multi-component fiber fabric, the defects that in the prior art, a two-step dyeing process of the multi-component fiber fabric is complex and low in efficiency are overcome, the technological process is shortened, the environmental pollution is reduced, and the dyed fabric which is uniform in colored light and full in cloth cover can be obtained.

Description

technical field [0001] The invention relates to a dyeing and color fixing method of reactive dyes, in particular to a moisture fixing method of reactive dyes after dyeing. Background technique [0002] Regarding dyeing with reactive dyes, at present, the main dyeing method is pad dyeing, including (1) the process with high frequency of use is the continuous dyeing method of pad-drying, pad-steaming. With less water consumption, it is suitable for mass continuous production and widely used. However, when dyeing by pad-drying pad-steaming process, the process will use a large amount of inorganic salts and alkalis, and the inorganic salts on the cloth surface are not easy to wash off when washing, which increases the difficulty of sewage treatment and causes serious environmental pollution; in addition This process also has the problems of long production process, complex dyeing process, large steam consumption, large energy consumption, and high cost. (2) The conventional co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/382D06P1/384D06P1/673D06P3/85D06P3/852D06P3/66D06P3/24D06P3/10D06P3/14D06B21/00D06B3/18D06B15/00D06B17/02
CPCD06P1/384D06P1/382D06P1/6735D06P1/67366D06P1/67383D06P3/8219D06P3/666D06P3/248D06P3/10D06P3/8209D06P3/148D06B21/00D06B3/18D06B15/00D06B17/02
Inventor 毛志平闫英山盛守祥李春光王力民徐红孙红玉钟毅吴伟贾荣霞王金波石鲁美芦青波
Owner HUAFANG
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