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Aldehyde-free color fixing agent for acid dyeing and preparation method thereof

A technology of formaldehyde-free color-fixing agent and acid dye, which is applied in the field of textile printing and dyeing, can solve the problems of unsatisfactory color fastness, low color fastness effect, small molecular weight, etc., to improve dry rubbing fastness, increase dry Wet fastness, little effect

Inactive Publication Date: 2018-11-09
曾文华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Acid dyes have bright color, high dyeing rate and complete color spectrum. They are widely used in wool fabric, silk and nylon dyeing. The color fastness caused by the group is often unsatisfactory and does not meet the international ecological textile standards, so the product needs to be color-fixed
At present, the commonly used color fixing agents are not effective in improving the color fastness. After finishing, they generally feel rough, and will release free formaldehyde or cause antimony salt poisoning in the process of taking it. The inevitable trend of color-fixing processing

Method used

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  • Aldehyde-free color fixing agent for acid dyeing and preparation method thereof
  • Aldehyde-free color fixing agent for acid dyeing and preparation method thereof
  • Aldehyde-free color fixing agent for acid dyeing and preparation method thereof

Examples

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Effect test

Embodiment 1

[0032] A kind of formaldehyde-free color-fixing agent for acid dye dyeing of the present invention is made of the following raw material components in proportion by mass:

[0033]

[0034] A kind of preparation method of the aldehyde-free color-fixing agent that is used for acid dye dyeing of the present invention, realizes by following steps:

[0035] (1) Add 26.5 parts of acrylamidopropyltrimethylammonium chloride, 1.3 parts of allyl glucose, 1.5 parts of N-acryloyloxymethyl-N, N-dimethylammonium-α- N-methylcarboxybetaine, 60.7 parts of deionized water, start stirring, and start to heat up;

[0036] (2) When the temperature in the reactor rose to 91°C, start to drop the initiator solution whose mass concentration was 8.7%. This initiator solution was prepared from 0.87 parts of ammonium persulfate and 9.13 parts of deionized water. The time is controlled at 3.3 hours. While adding the initiator dropwise, turn on the ultraviolet light to irradiate the reaction solution. T...

Embodiment 2

[0039] A kind of formaldehyde-free color-fixing agent for acid dye dyeing of the present invention is made of the following raw material components in proportion by mass:

[0040]

[0041]

[0042] A kind of preparation method of the aldehyde-free color-fixing agent that is used for acid dye dyeing of the present invention, realizes by following steps:

[0043] (1) Add 29 parts of acrylamidopropyltrimethylammonium chloride, 2.2 parts of allyl glucose, 2.9 parts of N-acryloyloxyethyl-N, N-dimethylammonium-α- N-methylcarboxybetaine, 55.9 parts of deionized water, start stirring, and start to heat up;

[0044] (2) When the temperature in the reactor rose to 92°C, start to drop the initiator solution whose mass concentration was 1.8%. This initiator solution was prepared from 0.18 parts of ammonium persulfate and 9.82 parts of deionized water. The time is controlled at 4.7 hours. While adding the initiator dropwise, turn on the ultraviolet light to irradiate the reaction so...

Embodiment 3

[0047] A kind of formaldehyde-free color-fixing agent for acid dye dyeing of the present invention is made of the following raw material components in proportion by mass:

[0048]

[0049] A kind of preparation method of the aldehyde-free color-fixing agent that is used for acid dye dyeing of the present invention, realizes by following steps:

[0050] (1) Add 31 parts of acrylamidopropyltrimethylammonium chloride, 4.3 parts of allyl glucose, 3.8 parts of N-acryloxypropyl-N, N-dimethylammonium-α- N-methylcarboxybetaine, 50.9 parts of deionized water, start stirring, and start to heat up;

[0051] (2) When the temperature in the reactor rose to 113°C, start to drop the initiator solution whose mass concentration was 2.3%. This initiator solution was prepared from 0.23 parts of sodium persulfate and 9.77 parts of deionized water. The time is controlled at 3.6 hours. While adding the initiator dropwise, turn on the ultraviolet light to irradiate the reaction solution. The ult...

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Abstract

The invention relates to an aldehyde-free color fixing agent for acid dyeing and a preparation method thereof. The preparation method comprises the following steps: (1) adding acrylamidopropyl trimethylammonium chloride, allyl glucose, betaine monomer and deionized water into a reactor, starting stirring, starting heating; (2) when the temperature in the reactor rises to 85-120 DEG C, dripping aninitiator solution with a mass concentration of 1 to 10%, wherein the initiator solution is prepared from the initiator and partial deionized water, and the dropping time is controlled to be 3 to 6 hours, irradiating the reaction liquid with ultraviolet light during dripping process, wherein the irradiation time is 1 to 8 hours; and (3) keeping the temperature and continuing to react for 1 to 3 hours, cooling, and discharging materials to obtain the color fixing agent.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, in particular to an aldehyde-free color-fixing agent for acid dye dyeing and a preparation method thereof. Background technique [0002] Acid dyes have bright color, high dyeing rate and complete color spectrum. They are widely used in wool fabric, silk and nylon dyeing. The color fastness caused by the group is often unsatisfactory, and cannot reach the international ecological textile standard, so the product needs to be color-fixed. At present, the commonly used color fixing agents are not effective in improving the color fastness. After finishing, they generally feel rough, and will release free formaldehyde or cause antimony salt poisoning in the process of taking it. The inevitable trend of solid color processing. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a kind of formaldehyde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08D06P1/39C08F220/60C08F224/00C08F220/36
CPCC08F220/36C08F220/60C08F224/00D06P1/39D06P5/08C08F220/365
Inventor 曾文华
Owner 曾文华
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