Reactive dye salt-free dying process of cotton fabric

A reactive dye and salt-free dyeing technology, applied in the field of reactive dye-salt-free dyeing technology, can solve the problems of difficult dyeing sewage treatment, difficulty in dyeing into deep colors, low dyeing rate of reactive dyes, etc., and achieves good color fastness to washing. , The effect of reducing the amount of dyeing wastewater and improving the dyeing performance

Inactive Publication Date: 2014-01-22
KUNSHAN P&X GARMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reactive dyes used in traditional cotton fabrics are easy to hydrolyze, and the color fixation rate is low, so it is difficult to dye deep

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of reactive dye salt-free dyeing process of cotton fabric, comprises the steps:

[0019] (1) Preparation of modifying agent: Glycidyl trimethyl ammonium chloride and amino-terminated hyperbranched compound undergo graft reaction to obtain amino-terminated hyperbranched compound quaternary ammonium salt as a modifier;

[0020] (2) Modification treatment: put the cotton fabric in the quaternary ammonium salt solution of amino-terminated hyperbranched compound with a concentration of 10g / L, soak it at 90°C for 50min, take it out, wash it and set it aside;

[0021] (3) Dyeing: Dye the above-mentioned modified cotton fabric in reactive dyes at room temperature. The dyeing process is as follows:

[0022] Reactive dye / %(owf) 2.0g / L

[0023] Anhydrous Na 2 CO 3 20g / L

[0024] Bath ratio 1:50;

[0025] (4) Post-treatment: After dyeing, wash with water, add 3g / L soap flakes, soap and boil for 5 minutes at 100°C, and dry in the air.

Embodiment 2

[0027] A kind of reactive dye salt-free dyeing process of cotton fabric, comprises the steps:

[0028] (1) Preparation of modifying agent: Glycidyl trimethyl ammonium chloride and amino-terminated hyperbranched compound undergo grafting reaction to obtain amino-terminated hyperbranched compound quaternary ammonium salt as modifier;

[0029] (2) Modification treatment: put the cotton fabric in the quaternary ammonium salt solution of amino-terminated hyperbranched compound with a concentration of 20g / L, soak it at 20°C for 80min, take it out, wash it and set it aside;

[0030] (3) Dyeing: Dye the above-mentioned modified cotton fabric in reactive dyes at room temperature. The dyeing process is as follows:

[0031] Reactive dye / %(owf) 2.0g / L

[0032] Anhydrous Na 2 CO 3 20g / L

[0033] Bath ratio 1:50;

[0034] (4) Post-treatment: After dyeing, wash with water, add 3g / L soap flakes, soap-boil at 90°C for 10 minutes, and dry in the air.

Embodiment 3

[0036] A kind of reactive dye salt-free dyeing process of cotton fabric, comprises the steps:

[0037] (1) Preparation of modifying agent: Glycidyl trimethyl ammonium chloride and amino-terminated hyperbranched compound undergo graft reaction to obtain amino-terminated hyperbranched compound quaternary ammonium salt as a modifier;

[0038] (2) Modification treatment: put the cotton fabric in the quaternary ammonium salt solution of amino-terminated hyperbranched compound with a concentration of 15g / L, soak it at 70°C for 20 minutes, take it out, wash it and set it aside;

[0039] (3) Dyeing: Dye the above-mentioned modified cotton fabric in reactive dyes at room temperature. The dyeing process is as follows:

[0040] Reactive dye / %(owf) 2.0g / L

[0041] Anhydrous Na 2 CO 3 20g / L

[0042] Bath ratio 1:50;

[0043] (4) Post-treatment: After dyeing, wash with water, add 3g / L soap flakes, soap-boil at 95°C for 8 minutes, and dry in the air.

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Abstract

The invention relates to a reactive dye salt-free dying process of cotton fabric. The reactive dye salt-free dying process of the cotton fabric comprises the following steps: (1) performing grafting reaction on glycidol trimethyl ammonium chloride and an amino-terminated hyperbranched compound to obtain amino-terminated hyperbranched compound quaternary ammonium salt; (2) placing the cotton fabric in the solution of the amino-terminated hyperbranched compound quaternary ammonium salt, performing dipping treatment at 20 to 90 DEG C for 20 to 80 minutes, taking out the cotton fabric and completely washing the cotton fabric for later use; (3) placing the modified cotton fabric into reactive dye and dyeing at normal temperature; and (4) washing after dyeing is finished, adding soap flakes of 3 g/L, performing soap boiling at 90 to 100 DEG C for 5 to 10 minutes and airing. The reactive dye salt-free dying process of the cotton fabric has the benefits that after the cotton fabric is modified, the dyeing property is obviously improved, the dyeing ratio is increased, the amount of dyeing waste water is reduced, and the environment is protected. Compared with the unmodified cotton fabric subjected to traditional salt dyeing, the cotton fabric has higher K/S value and achieves better effects on color fastness to rubbing and color fastness to washing.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a reactive dye salt-free dyeing process for cotton fabrics. Background technique [0002] Reactive dyes have complete chromatograms, simple dyeing methods, good level dyeing properties, and bright colors. They are one of the most widely used dyes for cellulose fibers. However, the reactive dyes used in traditional cotton fabrics are easy to hydrolyze, have low color fixation rate, and are difficult to dye into deep colors. In addition, the dye uptake rate of reactive dyes is not high, and the dye exhaustion rate is low, which makes it difficult to treat dyeing sewage. [0003] In the traditional dyeing process of cotton fabric with reactive dyes, a large amount of salt needs to be added to improve the dye uptake rate and color fixation rate. The addition of salt will lead to deterioration of water quality and damage to the ecological environment....

Claims

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Application Information

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IPC IPC(8): D06P3/66D06P1/44D06P1/66D06P1/673
Inventor 梁菊明
Owner KUNSHAN P&X GARMENTS
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