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Organosilicone modification polyurethane color fixing agent and preparation method thereof

A technology of polyurethane and color-fixing agent, which is applied in fiber treatment, textiles and papermaking, etc. It can solve the problems of poor color fastness to washing and poor water resistance, etc., so as to improve rough hand feeling, increase cross-linking property, and increase film-forming property Effect

Inactive Publication Date: 2015-12-02
HANGZHOU MEIGAO HUAYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the need to access more ionic groups in the synthesis process of water-based polyurethane, this makes the water-based polyurethane color fixing agent have disadvantages such as poor water resistance and poor color fastness to washing.

Method used

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  • Organosilicone modification polyurethane color fixing agent and preparation method thereof
  • Organosilicone modification polyurethane color fixing agent and preparation method thereof
  • Organosilicone modification polyurethane color fixing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 6 parts of hydroxy silicone oil 400 and 60 parts of polypropylene glycol 600 into the reaction vessel, remove water for 1 hour at a temperature of 110°C and a vacuum of -0.05MPa; cool down to 75°C, and add 0.1 part of dibutylene after nitrogen gas for 0.5h Base tin laurate, start to add 43 parts of isophorone diisocyanate dropwise, keep warm at 80°C for 3h after the dropwise addition; cool down to 50°C, add 1 part of trihydroxypropane, and slowly add 10 parts of N-formazol Diethanolamine and 30 parts of acetone, the dropwise addition time is 1.5 hours, and after the addition, it is kept at 45°C for 2 hours; 6 parts of methyl ethyl ketone oxime is added, and the capping reaction is carried out at 50°C for 2 hours, and then 5 parts of acetic acid is added to neutralize 0.5 h, finally add 480 parts of deionized water and stir at high speed, remove acetone under reduced pressure at 50°C to obtain a silicone-modified polyurethane color fixing agent.

[0024] See attached...

Embodiment 2

[0026] Add 5 parts of hydroxy silicone oil 800 and 48 parts of polypropylene glycol 600 into the reaction vessel, remove water for 1 hour at a temperature of 110°C and a vacuum of -0.05MPa; cool down to 75°C, and add 0.1 part of dibutylene after nitrogen gas for 0.5h Base tin laurate, start to add 35 parts of isophorone diisocyanate dropwise, keep warm at 80°C for 4h after the dropwise addition; cool down to 50°C, add 1 part of trihydroxypropane, and slowly add 8 parts of N-methyl Diethanolamine and 25 parts of acetone, the dropwise addition time is 1h, after the addition, keep warm at 50°C for 2h; add 5 parts of methyl ethyl ketone oxime, 50°C for 2h, then add 4 parts of acetic acid to neutralize for 0.5h , and finally add 400 parts of deionized water and stir at high speed, and remove acetone under reduced pressure at 50°C to obtain a silicone-modified polyurethane color fixing agent.

[0027] See attached figure 2 , which is the infrared spectrum of the silicone-modified ...

Embodiment 3

[0029] Add 4 parts of hydroxy silicone oil 800 and 60 parts of polypropylene glycol 600 into the reaction vessel, remove water for 1 hour at a temperature of 110°C and a vacuum of -0.06MPa; cool down to 75°C, and add 0.2 parts of dibutylene after nitrogen gas for 0.5h Base tin laurate, start to add 40 parts of isophorone diisocyanate dropwise, keep warm at 82°C for 3 hours after the dropwise addition; cool down to 50°C, add 1 part of trihydroxypropane, and slowly add 10 parts of N-methyl Diethanolamine and 30 parts of acetone, the dropwise addition time is 1.5 hours, after the addition, keep warm at 50°C for 2 hours; add 3 parts of methyl ethyl ketone oxime, 50°C capping reaction for 1.5 hours, then add 5 parts of acetic acid to neutralize After 0.5h, add 460 parts of deionized water and stir at high speed, and remove acetone under reduced pressure at 50°C to obtain a silicone-modified polyurethane color fixing agent.

[0030] See attached image 3 , which is the infrared spe...

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Abstract

The invention relates to a textile color fixing agent, and in particular to an organosilicone modification polyurethane color fixing agent and a preparation method thereof. The organosilicone modification polyurethane color fixing agent is synthesized from end hydroxyl polysiloxane, polypropylene glycol (PPG), isophorone diisocyanate (IPDI), N-methyl diethanol amine, trimethylolpropane (TMP), acetone, glacial acetic acid and methyl ethyl ketoxime as raw materials. As trimethylolpropane is adopted as a chain extender, a synthesized polyurethane prepolymer has multiple branch chains, and the cross-linking property and the filming property in curing can be improved; as methyl ethyl ketoxime is adopted to seal the end, sufficient active groups can be maintained for the prepolymer to react with active groups on a fabric and dye in high temperature baking, the color fastness and the washing fastness of the fabric can be improved, and meanwhile due to introduction of a polysiloxane chain segment, the softness of the settled fabric can be improved.

Description

technical field [0001] The invention relates to a color-fixing agent for textiles, in particular to an organosilicon-modified polyurethane color-fixing agent and a preparation method thereof. Background technique [0002] Cotton fabric has become one of the most commonly used fabrics due to its excellent wearing properties. With the gradual improvement of national living standards, people have higher and higher requirements for cotton textiles, especially in the requirements for color fastness of dyed fabrics. As an important auxiliary agent in the printing and dyeing industry, color fixing agent can improve the color fastness of dyes on fabrics. Traditional polycationic color-fixing agents, such as color-fixing agent Y, have a good color-fixing effect. On the one hand, they can combine with dye molecules to form water-insoluble color lakes; Coated on the fiber, the dye is not easy to fall off, but due to the high content of formaldehyde, which is harmful to human health a...

Claims

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Application Information

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IPC IPC(8): D06M15/564C08G18/61C08G18/48C08G18/66C08G18/75
Inventor 高雏燕陈焜
Owner HANGZHOU MEIGAO HUAYI CHEM
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