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Reactive dye printing paste and printing method thereof

A technology of reactive dyes and printing pastes, applied in the field of dyeing and finishing, can solve the problems of printing and dyeing enterprises, excessive ammonia nitrogen content, and increased difficulty in wastewater treatment, and achieve the effect of reducing treatment burden, reducing production costs, and simple and feasible process

Inactive Publication Date: 2020-02-04
湖南特俪洁新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that a large amount of urea is used as a printing auxiliary agent for the current reactive dye printing, which causes the ammonia nitrogen content in the printing wastewater to exceed the standard, increases the difficulty of wastewater treatment, and brings practical difficulties to printing and dyeing enterprises. Therefore, a reactive dye is provided. The dye printing paste and its printing method can realize the urea-free printing dyeing and finishing process of reactive dyes, thereby reducing the ammonia nitrogen content in printing and dyeing wastewater, and can especially realize its excellent printing fastness

Method used

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  • Reactive dye printing paste and printing method thereof

Examples

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Embodiment 1

[0030] A reactive dye printing color paste comprises the following components in mass percentage: 10% reactive dye, 30% acrylamide, 0.5% initiator, and the balance is water.

[0031] Utilize the printing method of described reactive dye printing paste, the steps are as follows:

[0032] (1) Preparation method of printing paste: 10% active orange K-R is prepared into a slurry with a small amount of water to obtain solution A, and then 30% urea substitute acrylamide is dissolved with a small amount of water to obtain solution B. At this time, B Add to A, finally add 0.5% initiator potassium persulfate and the rest of water, stir for 120min;

[0033] (2) Printing method of printing color paste: print the printing color paste on the cotton fabric on the printing machine, then dry it at 100°C for 3min, then roll the fabric surface with a solution containing 5% alkali agent sodium bicarbonate, and Steam at 140°C for 10s, then fully wash, soap, wash and dry the printed fabric to obt...

Embodiment 2

[0036] A reactive dye printing color paste, comprising the following components in mass percentage: 0.5% reactive dye, 5% acrylamide, 0.1% initiator, and water as the balance.

[0037] Utilize the printing method of described reactive dye printing paste, the steps are as follows:

[0038] (1) The preparation method of printing paste: 0.5% reactive red M-3BE is modulated into slurry with a small amount of water to obtain solution A, and then 5% urea substitute acrylamide is dissolved with a small amount of water to obtain solution B, at this time Add B to A, and finally add 0.1% initiator ammonium persulfate and the rest of water, and stir for 30 minutes;

[0039](2) Printing method of printing color paste: print the printing color paste on the linen fabric on the printing machine, then dry it at 80°C for 5min, then roll the fabric surface with a solution containing 1% alkali agent sodium hydroxide, and Steam at 130°C for 30s, then fully wash, soap, wash and dry the printed fa...

Embodiment 3

[0042] A reactive dye printing color paste comprises the following components in mass percentage: 3% reactive dye, 30% acrylamide, 0.5% initiator, and the balance is water.

[0043] Utilize the printing method of described reactive dye printing paste, the steps are as follows:

[0044] (1) Preparation method of printing paste: 3% active dark blue KN-5R is prepared into slurry with a small amount of water to obtain solution A, and then 10% urea substitute acrylamide is dissolved with a small amount of water to obtain solution B. Add B to A, finally add 0.5% initiator and the rest of water, and stir for 60 minutes;

[0045] (2) Printing method of printing color paste: print the printing color paste on the ramie fabric on the printing machine, then dry at 60°C for 10min, then roll the fabric surface with a solution containing 3% alkaline agent sodium carbonate, and Steam at 140°C for 20s, then fully wash, soap, wash and dry the printed fabric to obtain printed ramie fabric;

[...

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Abstract

The invention discloses reactive dye printing paste, which comprises, by mass, 5%-10% of a reactive dye, 5%-30% of acrylamide, 0.1%-0.5% of an initiator and the balance of water. Urea-free printing ofcellulose fiber fabrics with reactive dyes can be achieved by using acrylamide instead of urea as a reactive dye printing aid for cellulose fiber fabrics. Meanwhile, acrylamide is polymerized into polyacrylamide in the printing paste to serve as a thickening agent of reactive dye printing, and other thickening agents do not need to be added into the printing paste. Moreover, polyacrylamide washedinto a solution after printing can also be used as a flocculant for reactive dyes in wastewater under acidic and neutral conditions. The method can provide urea-free printing of the cellulose fiber fabrics via the reactive dyes, the printing and wastewater treatment costs are reduced, and the fastnesses of the printed fabrics are consistent with those of the conventional urea printing.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and in particular relates to a reactive dye printing color paste and a printing method thereof. Background technique [0002] Reactive dyes have complete color spectrum, high wet fastness and soft hand feeling, and are the main dyes for cellulose fiber printing. Reactive dye printing color paste contains a certain amount of urea, which mainly plays the role of reactive dye co-solvent, hygroscopic agent, buffer and bulking agent in reactive dye printing. Although there are soluble groups such as hydrophilic sulfonic acid groups in the dye molecule, its solubility is relatively good, but because the amount of dye used in printing is relatively high, and the solubility ratio of toning is small, urea is also needed to help dissolve. In terms of permeability, urea can promote fiber swelling, which is conducive to the penetration of dyes into the inner layer of fibers, thereby increasing ...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/52D06P5/10D06P5/20C08F120/56C02F9/04C02F103/30
CPCC02F1/56C02F1/66C02F2103/30C08F120/56D06P1/38D06P1/5242D06P5/10D06P5/2077
Inventor 戴志坚
Owner 湖南特俪洁新材料科技有限公司
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