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Natural dye fixing agent and preparation method thereof

A technology of natural dyes and color-fixing agents, applied in the direction of dyeing, textile and papermaking, etc., can solve problems such as affecting the fading of dyes, and achieve the effect of improving color fastness and strong affinity

Active Publication Date: 2019-10-15
SHAOXING CHINA TEXTILE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sometimes the mordant used in dyeing can also affect the fading of the dye

Method used

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  • Natural dye fixing agent and preparation method thereof
  • Natural dye fixing agent and preparation method thereof
  • Natural dye fixing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1. Preparation of natural dye fixing agent

[0050] Step 1), add 106 kilograms of dimethyl diallyl ammonium chloride, 5.7 kilograms of monoallylamine, 63 kilograms of deionized water in the reactor, heat up to 90 DEG C, dropwise add ammonium persulfate aqueous solution (0.07 kilograms per Ammonium sulfate was dissolved in 1.33 kg of deionized water), and the dropwise addition was completed in 3 hours, and then kept at 90° C. for 6 hours, and ended.

[0051] Step 2), add 37 kg of epichlorohydrin and 64.5 kg of deionized water into the reactor, add 6 kg of ethylenediamine dropwise, during which the temperature is controlled not to be higher than 70°C, after the dropwise addition is completed, continue to keep warm at 70°C for 3 hours, and end .

[0052] In step 3), mix the products in step 1) and step 2), stir evenly, then raise the temperature to 50° C., keep the temperature for 4 hours, and end.

[0053] The molecular structure of the above-mentioned synthetic natural d...

Embodiment 2

[0061] 1. Preparation of natural dye fixing agent

[0062] Step 1), add 53.3 kilograms of dimethyl diallylammonium chloride, 9.7 kilograms of diallylamine, 20.4 kilograms of deionized water in the reactor, raise the temperature to 60 DEG C, dropwise add ammonium persulfate aqueous solution (0.09 kilograms per Ammonium sulfate was dissolved in 0.81 kg of deionized water), and the dropwise addition was completed in 4 hours, and then kept at 60° C. for 8 hours, and ended.

[0063] Step 2), add 37 kg of epichlorohydrin and 43 kg of deionized water into the reactor, add 6 kg of ethylenediamine dropwise, during which the temperature is controlled not to be higher than 60°C, after the dropwise addition is completed, continue to keep warm at 60°C for 2 hours, and end .

[0064] In step 3), mix the products in step 1) and step 2), stir evenly, then raise the temperature to 60° C., keep the temperature for 3 hours, and end.

[0065] The above-mentioned synthetic natural dye fixing age...

Embodiment 3

[0073] 1. Preparation of natural dye fixing agent

[0074] Step 1), add 80 kilograms of dimethyl diallylammonium chloride, 9.7 kilograms of diallylamine, 156 kilograms of deionized water in the reactor, raise the temperature to 70 DEG C, dropwise add aqueous solution of ammonium persulfate (0.23 kilograms of over Ammonium sulfate was dissolved in 0.23 kg of deionized water), and the dropwise addition was completed in 5 hours, and then kept at 70° C. for 7 hours, and ended.

[0075] Step 2), add 37 kg of epichlorohydrin and 100 kg of deionized water into the reactor, add 6 kg of ethylenediamine dropwise, during which the temperature is controlled not to be higher than 80°C, after the dropwise addition is completed, continue to keep warm at 80°C for 1 hour, and end .

[0076] In step 3), mix the products in step 1) and step 2), stir evenly, then raise the temperature to 70° C., keep the temperature for 2 hours, and end.

[0077] The above-mentioned synthetic natural dye fixing...

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Abstract

The invention discloses a fixing agent for textile printing and dyeing and particularly relates to a natural dye fixing agent. The fixing agent is a polymer compound, has a large quantity of 3-chloro-2-hydroxypropyl, has high reactivity with hydroxyl and amino under the alkaline condition, can react with hydroxyl or amino in natural dyes and cotton, hemp and wool fibers to form covalent bonds andcan bond the natural dyes and fabric fibers which cannot react originally by the covalent bonds; meanwhile, the invention also discloses a preparation method of the natural dye fixing agent. The preparation method comprises the steps as follows: 1) in presence of ammonium persulfate, dimethyl diallyl ammonium chloride and allylamine monomers are subjected to a polymerization reaction in water; 2)epichlorohydrin is added to water, ethylenediamine is dropwise added, the reaction temperature is controlled to be not higher than 80 DEG C, and after addition, a product is kept at certain temperature for a certain period; 3) products in steps 1) and 2) are mixed, and the mixture is kept at certain temperature for a certain period.

Description

technical field [0001] The invention relates to a color-fixing agent for textile printing and dyeing, in particular to a color-fixing agent for natural dyes, and a preparation method for the color-fixing agent for natural dyes. Background technique [0002] Natural dyes are mainly derived from plants, animals or natural colored ores. They can generally be degraded naturally. Most of them have no toxicity and side effects, and do not pollute the environment. The above characteristics make them increasingly the focus of new dye development. In addition, dyeing with natural dyes is also one of the ways to achieve clean dyeing and finishing and to obtain ecological textiles. Using natural dyes to process textiles can not only meet people's needs for returning to nature, but also design ecological textile processing techniques to increase the added value of textile products. Therefore, it has rich development potential and broad application prospects. [0003] However, due to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08D06P1/34C08F226/02C08F8/24
CPCC08F8/24C08F226/02D06P1/34D06P5/08
Inventor 唐焕林杜芳林松岩张晓莉张云峰
Owner SHAOXING CHINA TEXTILE CHEM
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