Polyurethane composite color fixing agent and preparation method thereof

A technology of color-fixing agent and polyurethane, which is applied in the field of textile materials, can solve the problems of poor fastness to wet treatment and achieve good color-fixing effect

Active Publication Date: 2016-11-30
HANGZHOU TIANRUI DYEING PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reactive dyes have complete chromatograms, bright colors, and good fastness. However, due to the water-soluble groups such as carboxyl and sulfonic acid groups on th

Method used

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  • Polyurethane composite color fixing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A polyurethane composite color-fixing agent is prepared from the following components in parts by weight: 30 parts of polyethylene glycol, 10 parts of polytetrahydrofuran diol, 10 parts of polyoxypropylene glycol, 0.2 parts of aglycone tyrosol, and isophor 2 parts of ketone diisocyanate, 2 parts of trimethylhexamethylenediamine, 0.1 part of sodium citrate, 1 part of octamethylcyclotetrasiloxane, 3 parts of dibutyltin dilaurate, 2 parts of dibutyltin diacetate , 5 parts of trimethylolpropane, 10 parts of glycerol, and 20 parts of deionized water.

[0021] The preparation method of the above-mentioned polyurethane composite color-fixing agent is as follows: (1) put polyethylene glycol and polytetrahydrofuran diol in a vacuum drying oven and dry at a temperature of 40° C. for 8 hours; (2) add them to a three-necked flask, stirring slowly while Add isophorone diisocyanate and trimethylhexamethylenediamine, heat up to 50°C and stir for 60 minutes; (3) reduce to room temperat...

Embodiment 2

[0023] A polyurethane composite color-fixing agent is prepared by weight of the following components: 35 parts of polyethylene glycol, 12 parts of polytetrahydrofuran diol, 15 parts of polyoxypropylene glycol, 0.3 parts of aglycone tyrosol, and isophor 3 parts of ketone diisocyanate, 2.5 parts of trimethylhexamethylenediamine, 0.15 parts of sodium citrate, 1.3 parts of octamethylcyclotetrasiloxane, 4 parts of dibutyltin dilaurate, 2.5 parts of dibutyltin diacetate , 6 parts of trimethylolpropane, 12 parts of glycerol, and 25 parts of deionized water.

[0024] The preparation method of the above-mentioned polyurethane composite color-fixing agent is as follows: (1) put polyethylene glycol and polytetrahydrofuran diol in a vacuum drying oven and dry at a temperature of 45°C for 8.5 hours; (2) add them to a three-necked flask, and stir slowly while Add isophorone diisocyanate and trimethylhexamethylenediamine, heat up to 55°C and stir for 70 minutes; (3) reduce to room temperatur...

Embodiment 3

[0026] A polyurethane composite color-fixing agent is prepared from the following components in parts by weight: 40 parts of polyethylene glycol, 15 parts of polytetrahydrofuran diol, 20 parts of polyoxypropylene glycol, 0.35 parts of aglycone tyrosol, and isophor 3.5 parts of ketone diisocyanate, 3 parts of trimethylhexamethylenediamine, 0.2 parts of sodium citrate, 1.5 parts of octamethylcyclotetrasiloxane, 5 parts of dibutyltin dilaurate, 3 parts of dibutyltin diacetate , 7.5 parts of trimethylolpropane, 15 parts of glycerol, and 30 parts of deionized water.

[0027] The preparation method of the above-mentioned polyurethane composite color-fixing agent is as follows: (1) Put polyethylene glycol and polytetrahydrofuran diol in a vacuum drying oven and dry at a temperature of 45° C. for 9 hours; (2) Put them into a three-necked flask, and stir slowly while Add isophorone diisocyanate and trimethylhexamethylenediamine, heat up to 60°C and stir for 75 minutes; (3) reduce to ro...

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Abstract

The invention provides a polyurethane composite color fixing agent and a preparation method thereof. The preparation method comprises a step (1) of placing polyethylene glycol and polytetramethylene glycol in a vacuum drying oven to perform drying; a step (2) of adding polyethylene glycol and polytetramethylene glycol in a three-opening flask, adding isophorone diisocyanate and trimethyl hexamethylene diamine with slow stirring, and warming to 50-70 DEG C to perform stirring; a step (3) of performing cooling to room temperature, adding polypropylene oxide glycol, p-tyrosol, sodium citrate, dibutyltin dilaurate and dibutyl tin diacetate, performing stirring reaction for 40-60 min; a step (4) of adding octamethyl cyclotetrasiloxane, trimethylolpropane and glycerin, and warming to 50-70 DEG C to react for 40-60 min; a step (5) of performing reduced pressure distillation to remove a solvent; a step (6) of performing cooling to room temperature, and adding deionized water to perform high-speed stirring for 20-30 min to obtain the polyurethane composite color fixing agent. The polyurethane composite color fixing agent is very high in dry friction and wet friction color fastness grade, substantially does not discolor when washed, does not stain, and is good in color fixing effect.

Description

technical field [0001] The invention relates to the field of textile materials, in particular to a polyurethane composite color-fixing agent and a preparation method thereof. Background technique [0002] Fixing agent is one of the important auxiliaries in the printing and dyeing industry. It is an auxiliary that can improve the color fastness of dyes on fabrics. Reactive dyes have complete chromatograms, bright colors and good fastness. However, due to the water-soluble groups such as carboxyl and sulfonic acid groups on the dyes, the fastness to wet treatment is not good, especially the fastness to wet rubbing. It is necessary to use a fixing agent to improve the color fastness. Fixing agent generally needs to have a relatively wide adaptability, can be suitable for the dyeing of various dyes and various substrates; strong affinity with fibers; can improve dyeing fastness and dry and wet rubbing fastness; after finishing The fabric feels little or no change; no toxicity ...

Claims

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Application Information

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IPC IPC(8): D06P5/08C08G18/75C08G18/66C08G18/48C08G18/32
CPCC08G18/4808C08G18/4825C08G18/4833C08G18/4854C08G18/6677C08G18/6685C08G18/755D06P5/08
Inventor 潘明华
Owner HANGZHOU TIANRUI DYEING PRINTING
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