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Reactive dye constant-temperature dip dyeing method

A technology of reactive dyes and dip dyeing, applied in dyeing, textiles and papermaking, etc., can solve the problems of poor color stability, large energy consumption, and unstable dyeing temperature range, etc., and achieve the effect of improving stability.

Inactive Publication Date: 2013-04-10
JIANGSU JINCHENZHEN TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the dyeing temperature of 60-80°C is unstable, the color stability is also poor.
Moreover, the process of heating and cooling increases the dyeing time and consumes a lot of energy.

Method used

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  • Reactive dye constant-temperature dip dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] After pretreatment, the gray cloth is immersed in a dyeing vat at a constant temperature of 35°C, and then sequentially added to the dyeing vat are reactive dyes containing water-soluble groups that can dissolve in water at low temperatures, anhydrous sodium sulfate and alkali. The gray cloth is soaked in a dyeing vat at a constant temperature of 35°C for a certain period of time, and then the dyed cloth is taken out from the dyeing vat.

Embodiment 2

[0023] After pretreatment, the gray cloth is immersed in a dyeing vat at a constant temperature of 30°C, and then sequentially added to the dyeing vat are reactive dyes containing water-soluble groups that can dissolve in water at low temperatures, anhydrous sodium sulfate and alkali, and the pretreated The gray cloth is soaked in a dyeing vat at a constant temperature of 30°C for a certain period of time, and then the dyed cloth is taken out from the dyeing vat.

Embodiment 3

[0025] After pretreatment, the gray cloth is immersed in a dyeing vat at a constant temperature of 50°C, and then sequentially added to the dyeing vat are reactive dyes containing water-soluble groups that can be dissolved in water at low temperatures, anhydrous sodium sulfate and alkali. The gray cloth is soaked in a dyeing vat at a constant temperature of 50°C for a certain period of time, and then the dyed cloth is taken out from the dyeing vat.

[0026] A constant-temperature dip-dyeing method of active dyes in the present invention, the gray cloth is pre-treated and then dip-dyeed in a low-temperature dyeing vat, replacing the dip-dyeing in a high-temperature dyeing vat at 60-80°C in the original process, and improving the original effect on the basis of achieving the original effect. color stability. Further calculation from the cost: Compared with the traditional process, the constant temperature dip dyeing method of reactive dyes in the present invention reduces the ti...

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Abstract

The invention discloses a reactive dye constant-temperature dip dyeing method, which comprises the following steps of dipping pretreated grey cloths in 30-50DEG C constant-temperature dyeing vat, sequentially adding reactive dyes, anhydrous sodium sulfate and alkali in the dyeing vat, then dip-dyeing the pretreated grey cloths in the 30-50DEG C constant-temperature dyeing vat for certain time, and finally taking the dyed cloths out of the dyeing vat. Since the pretreated grey cloths are dip-dyed in the low-temperature dyeing vat and the method of dip-dying the grey cloths in a 60-80DEG C high-temperature dyeing vat in the traditional process is replaced, on the premise that the original effects are achieved, the reactive dye constant-temperature dip dyeing method has the advantages that the color stability is improved and the goals of saving energy, reducing emissions and reducing costs can be realized.

Description

technical field [0001] The invention relates to the field of fabric treatment, in particular to a constant-temperature dip-dyeing method with reactive dyes. Background technique [0002] Reactive dyes are colored organic compounds that dye cotton fibers. The conventional reactive dyes used in the traditional process must be dyed at a high temperature of 60-80°C to meet the requirements of affinity, dyeing fastness, water solubility and level dyeing of fibers without forming lakes. Because the dyeing temperature of 60-80°C has a large range of instability, the color stability is also poor. Moreover, the operation of heating and cooling increases the dyeing time and consumes a lot of energy. Contents of the invention [0003] The main technical problem to be solved by the present invention is to provide a constant temperature exhaust dyeing method for reactive dyes, which can improve color stability and realize energy saving, emission reduction and cost reduction under the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/673
Inventor 殷金华
Owner JIANGSU JINCHENZHEN TEXTILE
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