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Acid dye printing white background anti-fouling agent and preparation method thereof

A technology of acid dyes and antifouling agents, used in dyeing, textile and paper making, etc., can solve the problems of wasting energy, not bright enough color, and the color fastness of finished fabrics is not up to standard, and achieves the effect of preventing white ground stains

Active Publication Date: 2015-01-07
LIAONING FIXED STAR FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]The use of these white ground antifouling agents in acid dye printing mainly has the following three disadvantages: 1. The white ground is seriously stained and the shade is not bright enough; 2. Floating color Cleaning is not thorough, so that the color fastness of the finished cloth is not up to standard; 3. The anti-staining effect of white ground is not good, and the water in the washing tank must be replaced frequently, wasting energy
The above shortcomings hinder the promotion of acid dye printing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Add water 190 and maleic anhydride 73 to the reaction kettle, raise the temperature to 50°C-60°C to completely dissolve the maleic anhydride, and neutralize it with a sodium hydroxide solution 53 with a mass percentage concentration of 28%-30% , to get the neutralizing solution for use;

[0024] (2) Add 200 g of methacrylic acid and 150 g of water into No. 1 high-level tank, stir evenly, and set aside;

[0025] (3) Adding mass percent concentration in No. 2 high-level tank is the hydrogen peroxide solution 40 of 30%-35%, stand-by;

[0026] (4), heat up the material in the reactor while stirring, when the temperature in the reactor rises to 85°C-90°C, start to drop the methacrylic acid solution in the No. 1 high-level tank and the hydrogen peroxide solution in the No. 2 high-level tank at the same time, And keep the temperature at 85°C-90°C, the methacrylic acid solution in the No. 1 high-level tank is added in 3 hours, and the hydrogen peroxide solution in the No. ...

Embodiment 2

[0030] (1) Add water 193 and maleic anhydride 74 to the reaction kettle, raise the temperature to 50°C-60°C to completely dissolve the maleic anhydride, and neutralize it with sodium hydroxide solution 54 with a concentration of 28%-30% by mass Afterwards, the neutralizing solution is obtained for use;

[0031] (2), add methacrylic acid 204, water 155 in No. 1 high level tank, stir evenly, stand-by;

[0032] (3), adding mass percent concentration in No. 2 high level tank is the hydrogen peroxide solution 41 of 30%-35%, stand-by;

[0033] (4), heat up the material in the reactor while stirring, when the temperature in the reactor rises to 85°C-90°C, start to drop the methacrylic acid solution in the No. 1 high-level tank and the hydrogen peroxide solution in the No. 2 high-level tank at the same time, And keep the temperature at 85°C-90°C, the methacrylic acid solution in the No. 1 high-level tank is added in 3.5 hours, and the hydrogen peroxide solution in the No. 2 high-leve...

Embodiment 3

[0037] (1) Add water 197 and maleic anhydride 76 to the reaction kettle, raise the temperature to 50°C-60°C to completely dissolve the maleic anhydride, and neutralize it with sodium hydroxide solution 56 with a concentration of 28%-30% by mass Afterwards, the neutralizing solution is obtained for use;

[0038] (2) Add methacrylic acid 208 and water 160 to the No. 1 high-level tank, stir evenly, and set aside;

[0039] (3) Add 41.5 hydrogen peroxide solution with a mass percentage concentration of 30%-35% in the No. 2 high-level tank, and wait for use;

[0040] (4) Heat up the materials in the reactor while stirring. When the temperature in the reactor rises to 85°C-90°C, start to drop the methacrylic acid solution in the No. 1 high-level tank and the hydrogen peroxide solution in the No. 2 high-level tank at the same time. And keep the temperature at 85°C-90°C, add the methacrylic acid solution in the No. 1 high-level tank in 3.5 hours, and add the hydrogen peroxide solution...

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PUM

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Abstract

The invention relates to an acid dye printing white background anti-fouling agent and a preparation method thereof. The acid dye printing white background anti-fouling agent comprises the following raw materials in parts by weight: 73-77 parts of maleic anhydride, 200-212 parts of methacrylic acid, 373-397 parts of sodium hydroxide solution with the mass percent concentration of 28%-30%, 40-42 parts of hydrogen peroxide solution with the mass percent concentration of 30%-35% and 340-365 parts of water, and is prepared by neutralizing, performing solution polymerization and adding an appropriate amount of the water for regulating the solid content. The acid dye printing white background anti-fouling agent is used for the washing process of fabric after acid dye printing, and can remove loose color, prevent the loose color from staining the fabric or ground color, ensure color fastness and pure ground color, and simultaneously increase dry and wet rubbing fastness and washing fastness of the printed fabric, realize good environment-friendly property and improve the quality of a printed product.

Description

technical field [0001] The invention relates to an antifouling agent for acid dye printing white ground and a preparation method thereof. It is used in the washing process of fabrics after acid dye printing, quickly removes floating colors and prevents floating colors from contaminating fabrics or background colors, ensuring color fastness and pure background colors. Background technique [0002] Protein fibers are printed with acid dyes. After printing, there will also be a large amount of unfixed acid dyes in the soap bath, which will be stained on the printed fabric, reducing the color fastness of the pattern and staining the white part, thereby improving the quality of the printed fabric. drop or scrap. Therefore, it is necessary to use the white ground antifouling agent for acid dye printing, so that the undyed acid dye can be removed by washing process, so as to prevent the floating color from contaminating the fabric or the background color, and ensure the color fast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P5/08D06P1/39C08F222/02C08F220/06
Inventor 周明倪成涛董明东郑文慧
Owner LIAONING FIXED STAR FINE CHEM