Unlock instant, AI-driven research and patent intelligence for your innovation.

Color fixing agent as well as preparation method and application method thereof

An application method and technology of a color-fixing agent, which can be applied in the directions of dyeing, textile and paper making, etc., can solve the problems of fading, endangering human health and environmental safety, and low bonding stability of dyes and fibers.

Active Publication Date: 2022-03-22
HANGZHOU TRANSFAR FINE CHEM CO LTD +2
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low stability of the bond between the dye and the fiber, it is prone to color change, fading, and staining. Therefore, it is necessary to use a color-fixing agent in the dyeing process of direct dyes and reactive dyes.
[0003] However, there is a relatively high content of formaldehyde in traditional color-fixing agents (such as resin color-fixing agents condensed with dicyandiamide and formaldehyde), resulting in free formaldehyde content in textiles treated with traditional color-fixing agents generally greater than 200mg / kg, Seriously endanger human health and environmental safety, and traditional color fixing agents will basically significantly reduce the light fastness and light sweat composite fastness of textiles
In addition, the traditional color fixing agent only solves the problem of color fastness to washing of textiles, but still does not solve the problem of fastness to immersion in boiling water

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Color fixing agent as well as preparation method and application method thereof
  • Color fixing agent as well as preparation method and application method thereof
  • Color fixing agent as well as preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0048] The present invention also provides a kind of preparation method of described fixing agent, comprises the following steps:

[0049] S1, providing a monomer containing a cyclohexyl ester group, the structural formula of the monomer containing a cyclohexyl ester group is shown in the following formula (5),

[0050]

[0051] In formula (5), -R 1 selected from -H, -CH 3 At least one of the -R 2 selected from -H, -CH 3 , At least one of the -R 3 At least one selected from -H, alkyl groups with 1-6 carbon atoms;

[0052] S2, mixing the quaternary ammonium salt type cationic monomer containing hydroxyl group with the monomer containing cyclohexyl ester group, dilute acid, solvent and initiator, and performing polymerization reaction under acidic conditions to obtain a color fixing agent.

[0053] In step S1, the monomer containing a cyclohexyl group is selected from cyclohexyl acrylate, 2-cyclohexyl methacrylate, 2-butenoic acid cyclohexyl, fumarate dicyclohexyl, 4-...

Embodiment 1

[0069] Select quaternary ammonium salt type cationic monomer 165g containing hydroxyl group, cyclohexyl acrylate 155g, water 173g, propylene glycol methyl ether 173g to join in the reactor as shown in formula (2-1), and with the hydrochloric acid of 26.9g (mass concentration 36.5%) solution to adjust the pH value of the mixed material to 4-5, heat up to 80°C, add dropwise 0.2g of hydrogen peroxide (mass concentration is 50%), and react for 5h under heat preservation conditions at 80°C to obtain a color-fixing agent such as Formula (4-1) shows.

[0070]

[0071] The prepared color-fixing agent was used as a color-fixing agent to test the color-fixing effect of textiles, and the test results are shown in Table 1.

Embodiment 2

[0073] Choose 186g of quaternary ammonium salt type cationic monomer containing hydroxyl group shown in formula (2-2), 155g of cyclohexyl acrylate, 173g of water, 173g of propylene glycol methyl ether and join in the reactor, and use 26.9g of hydrochloric acid (mass concentration 36.5%) solution to adjust the pH value of the mixed material to 4-5, heat up to 80°C, add dropwise 0.2g of azobisisobutyronitrile hydrochloride aqueous solution (mass concentration is 50%), and keep warm at 80°C After reacting for 5 hours, the color-fixing agent is obtained as shown in formula (4-2).

[0074]

[0075]

[0076] The prepared color-fixing agent was used as a color-fixing agent to test the color-fixing effect of textiles, and the test results are shown in Table 1.

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a color fixing agent as well as a preparation method and an application method thereof. The structural formula of the color fixing agent is shown in the following formula (1), in the formula (1),-R1 is selected from at least one of-H and-CH3,-R2 is selected from at least one of-H and-CH3,-R3 is selected from at least one of-H and alkyl with the carbon atom number being 1-6,-R4 is a structural unit of a quaternary ammonium salt type cationic monomer containing hydroxyl, m and n are integers, m is 5-35, and n is 1-20. The color fixing agent disclosed by the invention has relatively strong cationic activity and excellent light fastness, light fastness and weather fastness, and when the color fixing agent is used for treating a textile fabric, not only can the color fastness to washing and the boiling water soaking fastness of the textile fabric be improved, but also the light fastness to sunlight and the light-perspiration composite fastness of the textile fabric are not influenced, and formaldehyde residues are avoided.

Description

technical field [0001] The invention relates to the technical field of water-soluble polymer preparation, in particular to a color fixing agent and its preparation method and application method. Background technique [0002] In the textile dyeing process, direct dyes and reactive dyes are widely used due to their bright color, complete color spectrum, relatively low cost, and convenient operation. However, due to the low stability of the bond between the dye and the fiber, it is prone to color change, fading, and staining. Therefore, it is necessary to use a color-fixing agent in the dyeing process of direct dyes and reactive dyes. [0003] However, there is a relatively high content of formaldehyde in traditional color fixing agents (such as resin color fixing agents condensed with dicyandiamide and formaldehyde), resulting in free formaldehyde content in textiles treated with traditional color fixing agents generally greater than 200mg / kg, Seriously endangering human heal...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08C08F226/02C08F220/18
CPCD06P5/08C08F226/02C08F220/1806
Inventor 张红燕吴彬张洁张焕忠徐夏冰姜莉王利萍
Owner HANGZHOU TRANSFAR FINE CHEM CO LTD