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Method for energy-saving washing in open width after dyeing with reactive dyes

A reactive dye and open-width water washing technology, which is applied in the field of dye dyeing and water washing, can solve the problems of high energy consumption, short dye vat processing process, and long process flow, and achieve the effects of saving water, improving the success rate of one time, and stabilizing color fastness

Active Publication Date: 2020-09-22
ZHEJIANG YINHE PRINTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of long dyeing vat washing process, high energy consumption and unstable color improvement by additives, the present invention provides an open-width energy-saving washing method after dyeing with reactive dyes , breaking the traditional washing in the dyeing vat, omitting the time of washing and soaping in the vat, the color fastness is consistent with the conventional process, compared with the conventional process, it has strong process operability, short dyeing process, and good color fastness of the finished product. , through process control to get a better cloth surface effect, in line with the requirements of energy saving and emission reduction, applied to the washing process after dyeing with reactive dyes, the effect is remarkable

Method used

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  • Method for energy-saving washing in open width after dyeing with reactive dyes
  • Method for energy-saving washing in open width after dyeing with reactive dyes

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1-zhang cyan (dark color)

[0024] Dyeing is carried out according to conventional methods, wherein the amount of dye auxiliaries is based on the total weight of the cotton cloth, and each material is added in the following mass percentages: reactive dye KN-B 3%, reactive dye HF-3BX red 1%, reactive dye HF-3RX yellow 1%, Yuanming powder 70%, soda ash 20%. The amount of reagent added in the water washing process is: 0.8% of glacial acetic acid, 2% of Accelex SW (reactive dye soaping agent).

[0025] A method for open-width energy-saving water washing after dyeing with reactive dyes, comprising the steps of:

[0026] (1) After dyeing with reactive dyes in the rope dyeing machine, drain the water and run it for 5 minutes before draining the water again. Add glacial acetic acid to neutralize the water and then leave the tank directly. The pH value is controlled at 7-8. between;

[0027] (2) The gray cloth is opened by the open-width machine and then washed in ...

Embodiment 2

[0030] Example 2 - light blue (light color)

[0031] Dyeing is carried out according to conventional methods, wherein the consumption of dyestuffs is , based on the total weight of cotton cloth, each material is added in the following mass percentages: 0.15% of reactive dye SHF-BRS, 15% of sodium sulfate, and 8% of soda ash. The addition amount of reagents in the water washing process is: 0.4% of glacial acetic acid, 0.5% of Accelex SW (reactive dye soaping agent).

[0032] A method for open-width energy-saving water washing after dyeing with reactive dyes, comprising the steps of:

[0033] (1) After dyeing with reactive dyes in the rope dyeing machine, drain the water once, add glacial acetic acid to neutralize the water, and then leave the tank directly. The pH value is controlled between 7-8;

[0034] (2) The gray cloth is opened by the open-width machine and then washed in the open-width washing machine with 10 water tanks for open-width continuous washing: among them, ta...

Embodiment 3

[0037] Example 3 - Gray (Neutral)

[0038]Dyeing is carried out according to conventional methods, wherein the amount of dyestuffs is, based on the total weight of the cotton cloth, each material is added in the following mass percentages: reactive dye K-BF 1.3%, reactive dye HF-3BX red 0.5%, reactive dye HF-3RX yellow 0.8%, Yuanming powder 50%, soda ash 20%. The amount of reagents added in the water washing process is: 0.6% of glacial acetic acid, 1.5% of Jacocel SW (reactive dye soaping agent).

[0039] A method for open-width energy-saving water washing after dyeing with reactive dyes, comprising the steps of:

[0040] (1) After dyeing with reactive dyes in the rope dyeing machine, drain the water once, add glacial acetic acid to neutralize the water, and then leave the tank directly. The pH value is controlled between 7-8;

[0041] (2) The gray cloth is opened by the open-width machine and then washed in the open-width washing machine with 10 water tanks for open-width c...

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Abstract

The invention relates to a dye dyeing and washing method. Aiming at the problems of long flow, high energy consumption and instability of auxiliary-improved color of a dye vat washing process, the invention provides a method for energy-saving washing in open width after dyeing with reactive dyes. The method comprises the following steps of after dyeing with the reactive dyes in a rope dyeing machine, draining waste water, and conducting acid treatment and leaving a vat; scotching grey cloth by a scutcher, and then conducting open-width continuous washing in an open width washing machine with 10 water tanks, wherein 1-4th tanks are thermal washing tanks; the fifth tank is a soaping tank, and a Yakesai SW active soaping agent is added; 6-10th tanks are cleaning tanks; the way of using waterof the open width washing machine is as follows: water enters the 10th tank, and then overflows from the 10th tank to the 9th tank and overflows from the 9th tank to the 8th tank, and so on, the wateris reused stepwise; the running speed of the open width washing machine is controlled at 20-30m / min; conducting softening treatment, color fixing and dewatering; and conducting drying and sizing treatment. The method omits the washing and soaping time in the vat, the dye vat processing flow is short, and the color fastness of a finished product has good reproducibility.

Description

technical field [0001] The invention relates to a dyeing and water washing method, in particular to an energy-saving water washing method for open-width dyeing of reactive dyes. Background technique [0002] For the sample dyeing process of gray cloth containing cotton fiber, it has long been used to first bleach the cotton fiber, and then dye the cotton fiber with reactive dyes. At present, reactive dyes at home and abroad are washed and soaped in the dyeing vat after dyeing, which leads to long processing time (about 8 hours) and low production efficiency. Moreover, it is intermittent washing, especially for dark colors, which are difficult to clean, emerald green and bright red. Due to insufficient water washing, the color fastness after soaping is difficult to do well, and the repair fastness is more, and it is difficult to recover, resulting in large water, electricity, steam consumption, and large sewage discharge, which does not meet the requirements of environmental ...

Claims

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Application Information

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IPC IPC(8): D06B3/24D06B3/10D06B23/20D06P1/38D06P1/673D06P3/66D06P5/02
CPCD06B3/24D06B3/10D06B23/20D06P1/38D06P1/6735D06P3/66D06P5/02Y02P70/62
Inventor 袁钱
Owner ZHEJIANG YINHE PRINTING & DYEING