Environment-friendly hydrophilic color fixing agent for cotton and preparation method thereof

A color-fixing agent and an environment-friendly technology, which is applied in the direction of dyeing, plant fiber, fiber treatment, etc., can solve the problem that the color fastness of the fabric cannot be guaranteed and the hydrophilicity, hydrophilicity and handfeel have not been improved, and the color-fixing agent Problems such as good and bad are uneven, to achieve the effect of improving color fastness, improving color fastness, and improving color fastness

Active Publication Date: 2020-11-17
多恩生物科技有限公司
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention also discloses a preparation method of the alkali-resistant and chlorine-resistant formaldehyde-free reactive dye fixing agent. The color fixing agent has high alkali resistance, high chlorine fastness, good washing resistance, and has no effect on the appearance and performance of fabrics. No toxic substances are released during preparation and use, which

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
  • Environment-friendly hydrophilic color fixing agent for cotton and preparation method thereof
  • Environment-friendly hydrophilic color fixing agent for cotton and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1

[0040] The preparation method of the said environment-friendly cotton-use hydrophilic color-fixing agent:

[0041] (1) in reaction vessel, add triethanolamine and epichlorohydrin successively, be warming up to 85 DEG C of temperature and react 2 hours, obtain terminal hydroxyl quaternary ammonium salt chain extender, the product therefrom is washed several times with acetone, and vacuum distillation is removed Residual solvent, vacuum drying, the molar ratio of triethanolamine and epichlorohydrin is 0.7:1;

[0042] (2) put the polyoxypropylene glycol into the reactor, distill under reduced pressure at 100°C for 2 hours, adjust the temperature to 50°C, add acetone, seal it for later use, and add 1,6-hexamethylene diisocyanate in the dry reactor , drip the above-mentioned polyoxypropylene glycol under nitrogen protection, and add dibutyltin dilaurate, control the temperature at 60 ° C, and keep the reaction for 1 hour to obtain a polyurethane prepolymer; poly...

Example Embodiment

[0046] Example 2

[0047] The preparation method of the said environment-friendly cotton-use hydrophilic color-fixing agent:

[0048] (1) successively add diisopropanolamine and epichlorohydrin in reaction vessel, be warming up to 95 DEG C of temperature and react 1 hour, obtain terminal hydroxyl quaternary ammonium salt chain extender, the products therefrom are washed several times with acetone, reduce Pressure distillation to remove residual solvent, vacuum drying, the mol ratio of triethanolamine and epichlorohydrin is 1:1;

[0049] (2) put the polyoxypropylene glycol into the reactor, distill under reduced pressure at 110°C for 2 hours, adjust the temperature to 50°C, add acetone, seal it for later use, and add 1,6-hexamethylene diisocyanate in the dry reactor , under nitrogen protection, drip the above-mentioned polyoxypropylene glycol, and add ditin octoate, control the temperature at 58 ° C, and keep the reaction for 1 hour to obtain a polyurethane prepolymer; polyoxy...

Example Embodiment

[0053] Example 3

[0054] The preparation method of the said environment-friendly cotton-use hydrophilic color-fixing agent:

[0055] (1) successively add diisopropanolamine and epichlorohydrin in reaction vessel, be warming up to 90 DEG C of temperature and react 1 hour, obtain terminal hydroxyl quaternary ammonium salt chain extender, the product therefrom is washed several times with acetone, reduce Pressure distillation to remove residual solvent, vacuum drying, the mol ratio of triethanolamine and epichlorohydrin is 0.9:1;

[0056] (2) put the polyoxypropylene glycol into the reactor, distill under reduced pressure at 105°C for 2 hours, adjust the temperature to 50°C, add acetone, seal it for later use, and add 1,6-hexamethylene diisocyanate in the dry reactor , drip the above-mentioned polyoxypropylene glycol under nitrogen protection, and add zinc naphthenate, control the temperature at 62 ° C, and keep the reaction for 1.5 hours to obtain a polyurethane prepolymer; po...

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 hydrophilic color fixing agent for cotton and a preparation method thereof. The color fixing agent is prepared from a quaternary ammonium cationic polyurethane color fixingagent, a polyacrylic acid color fixing agent, a pH regulator, a cosolvent, ethyl alcohol and water, and the quaternary ammonium cationic polyurethane color fixing agent and the polyacrylic acid colorfixing agent are prepared through polymerization of several functional monomers; and a quaternary ammonium cationic group and a reactive epoxy group are introduced into a polyurethane macromolecular chain, so that the final product color fixing agent has an excellent film-forming property, and the color fastness of reactive dyes is remarkably improved. Meanwhile, harmful substances such as formaldehyde are not contained, and environment-friendly requirements are met.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, and in particular relates to a hydrophilic color-fixing agent for cotton and a preparation method thereof. Background technique [0002] Cotton fiber is a general term for various cotton plant fibers and is the main raw material for the textile industry. Among textile fibers, cotton fiber belongs to short fiber, and its main component is cellulose. In the process of moisture absorption and dyeing, a large number of hydroxyl groups contained in fiber molecules play an important role. Free hydroxyl groups can also form hydrogen bonds with color fixing agents and dyes. [0003] At present, the main raw materials used for cotton fiber dyeing include reactive dyes, direct dyes, sulfur dyes and vat dyes. Among them, although reactive dyes have the shortest development time, they are used in the largest amount. Reactive dyes are also called reactive dyes, which have reactive gro...

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
IPC IPC(8): D06P5/08D06M15/568C08G18/66C08G18/48C08G18/32C08G18/10C08F220/06C08F220/58D06M101/06
CPCD06P5/08D06M15/568C08G18/6688C08G18/48C08G18/10C08F220/06C08F220/58D06M2101/06D06M2200/50C08G18/3281C08F220/585
Inventor 赖亚琴苏宇吕江龙
Owner 多恩生物科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap