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Novel formaldehyde-free fixing agent

A formaldehyde-free color-fixing agent and color-fixing agent technology, applied in the field of color-fixing agents, can solve problems such as unsatisfactory color fastness to wet rubbing, improve color-fixing effect, enhance cationicity, and skin irritation small effect

Inactive Publication Date: 2013-01-23
杨海翔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, formaldehyde-free color-fixing agents have been widely used in the dyeing of cotton fabrics with reactive dyes, and formaldehyde-free color-fixing agents are also reported from time to time in published patent documents, such as the patent with application number 01119412 and the name of the environmental-friendly color fixing agent. Application, the environmentally friendly color fixing agent is composed of chitin, high-efficiency penetrating agent 0P-6, fatty alcohol polyoxyethylene ether, and water; the patent No. 03114001.7 discloses a kind of diethylene triamine and epichlorohydrin. The formaldehyde-free color-fixing agent that application number is 200610096042.5 discloses a kind of formaldehyde-free color-fixing agent etc. that ethyl acrylate, acrylic acid, sodium pyrosulfite and diethylenetriamine, epichlorohydrin make again, but solid Color fastness, especially wet rubbing fastness is not ideal

Method used

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  • Novel formaldehyde-free fixing agent

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Add a certain amount of water and diethylenetriamine (AE) into the reaction vessel, heat up to 50°C while stirring, add epichlorohydrin (EP) dropwise, and continue to react for 2 hours after the dropwise addition, to obtain the pH value of the reaction solution 8, adjusted to 6 with glacial acetic acid, then continued to heat up to 70°C, added dropwise dimethyl diallyl ammonium chloride (DMDAAC), reacted for 4 hours after the dropwise addition, and the pH value of the reaction solution was 7.5. Cool to room temperature and discharge to get the finished product. In the reaction, each material is charged according to the following ratio, and the monomer molar ratio of diethylenetriamine, epichlorohydrin and dimethyl diallyl ammonium chloride (DMDAAC) is 2: 2: 1, and the prepared color fixing agent The solid content is 10%.

Embodiment 2

[0018] Add a certain amount of water and diethylenetriamine (AE) into the reaction vessel, heat up to 40°C while stirring, add epichlorohydrin (EP) dropwise, and continue to react for 2 hours after the dropwise addition, to obtain the pH value of the reaction solution 6.5, continue to heat up to 80 ° C, dropwise add dimethyl diallyl ammonium chloride (DMDAAC), react for 2 hours after the dropwise addition, the pH value of the reaction solution obtained is 7.0, cool to room temperature, and the material is ready Get the finished product. In the reaction, each material is charged according to the following ratio, and the monomer molar ratio of diethylenetriamine, epichlorohydrin and dimethyl diallyl ammonium chloride (DMDAAC) is 2: 2: 1, and the prepared color fixing agent The solid content is 10%.

Embodiment 3

[0020] Add a certain amount of water and diethylenetriamine (AE) into the reaction vessel, raise the temperature to 45°C while stirring, add epichlorohydrin (EP) dropwise, and continue the reaction for 1 hour after the dropwise addition, to obtain the pH value of the reaction solution 8, adjusted to 6 with glacial acetic acid, then continued to heat up to 60°C, added dropwise dimethyl diallyl ammonium chloride (DMDAAC), reacted for 4 hours after the dropwise addition, and the pH value of the reaction solution was 7.5. Cool to room temperature and discharge to get the finished product. In the reaction, each material is charged according to the following ratio, and the monomer molar ratio of diethylenetriamine, epichlorohydrin and dimethyl diallyl ammonium chloride (DMDAAC) is 2: 2: 1, and the prepared color fixing agent The solid content is 10%.

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Abstract

The invention relates to a novel formaldehyde-free fixing agent which is prepared from diethylenetriamine (AE), epichlorohydrin (EP), and dimethyl diallyl ammonium chloride (DMDAAC) with a monomer molar ratio of 2 : 2 : 1. Water is used as a solvent and the obtained product contains 10 % of solid. The prepared fixing agent does not produce formaldehyde substance during production and usage, and the dyed fabric with the dye-fixation treatment does not release formaldehyde either, thereby being capable of effectively improving wet rubbing fastness of cotton fabric dyed with reactive dyes, and obtaining high-quality dye-fixation effect.

Description

technical field [0001] The invention relates to a color fixing agent, in particular to a novel formaldehyde-free color fixing agent. technical background [0002] The textile industry is a traditional industry in our country and an important industry related to national life, which plays a pivotal role in the national economy. In recent years, with the development of science and technology, dyeing and finishing technology has been significantly improved. At the same time, due to the expansion of international textile trade and the improvement of people's living standards, environmental protection awareness and quality of life, the requirements for textiles are also getting higher and higher. With my country's accession to WTO and the gradual cancellation of textile export quotas, export textiles not only need to be of higher grade and high added value, but also meet the requirements of green environmental protection and ecological indicators, so as to have certain market co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): C08G59/14C08G59/10D06P1/52D06P3/66
Inventor 杨海翔
Owner 杨海翔
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