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Chlorine-resistant color fixing agent based on polyethyleneimine structure and preparation method of chlorine-resistant color fixing agent based on polyethyleneimine structure

A technology of polyethylenimine and color-fixing agent, which is applied in dyeing, textiles and papermaking, can solve the problem of not significantly improving the fastness to chlorine bleaching and improve the fastness to chlorine bleaching and wet treatment , preventing migration and falling off, improving the color fastness to chlorine

Pending Publication Date: 2021-12-10
GUANGDONG ZHAN FENG FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has shown that this kind of chlorine-resistant color-fixing agent treated textiles with a higher concentration of active chlorine resulted in a less significant improvement in chlorine bleaching fastness.

Method used

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  • Chlorine-resistant color fixing agent based on polyethyleneimine structure and preparation method of chlorine-resistant color fixing agent based on polyethyleneimine structure
  • Chlorine-resistant color fixing agent based on polyethyleneimine structure and preparation method of chlorine-resistant color fixing agent based on polyethyleneimine structure
  • Chlorine-resistant color fixing agent based on polyethyleneimine structure and preparation method of chlorine-resistant color fixing agent based on polyethyleneimine structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of acylated copolymer A:

[0036] Add 1 mol of polyethyleneimine to a reactor equipped with a stirrer, a thermometer, and a drop tank, add 2 mol of acryloyl chloride to the drop tank, cool with an ice-water bath and keep the temperature at 0-5°C), and Add acryloyl chloride dropwise while stirring at a stirring rate of 600-700 rpm. The dropwise addition time is 2 hours. After the dropwise addition, continue the reaction for 0.5 hour to obtain the acylated copolymer A1.

[0037] Preparation of chlorine-resistant color-fixing agent based on polyethyleneimine structure:

[0038] a. 0.7kg of ammonium persulfate is prepared with deionized water to an aqueous solution with a concentration of about 5%, and added to the head tank;

[0039] b. Add 10kg diallylamine hydrochloride in the reactor, during stirring, add 50kg dimethyl diallyl ammonium chloride;

[0040] c. Heating up to 40-45°C and adding 10kg of acylated copolymer A1, then rising to 76-78°C;

[0041] d....

Embodiment 2

[0044] Preparation of acylated copolymer A:

[0045]Add 1 mol of polyethyleneimine to the reactor equipped with a stirrer, a thermometer, and a drop tank, add 1 mol of acryloyl chloride to the drop tank, cool with an ice-water bath and keep the temperature at 0-5°C), and Add acryloyl chloride dropwise while stirring at a stirring rate of 600-700 rpm. The dropwise addition time is 1.5 h. After the dropwise addition, continue the reaction for 1.0 h to obtain the acylated copolymer A2.

[0046] Preparation of chlorine-resistant color-fixing agent based on polyethyleneimine structure:

[0047] a. 0.75kg of ammonium persulfate is prepared with deionized water to an aqueous solution with a concentration of about 5%, and added to the head tank;

[0048] b. add 10kg diallylamine hydrochloride in the reactor, during stirring, add 40kg dimethyl diallyl ammonium chloride;

[0049] c. Heating up to 40-45°C and adding 10kg of acylated copolymer A1, then rising to 76-78°C;

[0050] d. Us...

Embodiment 3

[0053] Preparation of acylated copolymer A:

[0054] Add 1 mol of polyethyleneimine to a reactor equipped with a stirrer, a thermometer, and a drop tank, add 3 mol of acryloyl chloride to the drop tank, cool with an ice-water bath and keep the temperature at 0-5°C), and Add acryloyl chloride dropwise while stirring at a stirring rate of 600-700 rpm. The dropwise addition time is 2.3 hours. After the dropwise addition, continue the reaction for 0.2 hours to obtain the acylated copolymer A3.

[0055] Preparation of chlorine-resistant color-fixing agent based on polyethyleneimine structure:

[0056] a. 0.65kg of ammonium persulfate is prepared with deionized water to an aqueous solution with a concentration of about 5%, and added to the head tank;

[0057] b. Add 10kg diallylamine hydrochloride in the reactor, during stirring, add 50kg dimethyl diallyl ammonium chloride;

[0058] c. Warm up to 40-45°C and add 12.5kg of acylated copolymer A3, then rise to 76-78°C;

[0059] d. U...

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Abstract

The invention discloses a preparation method of a chlorine-resistant color fixing agent based on a polyethyleneimine structure. The preparation method comprises the following steps of: preparing an acylated copolymer A of polyethyleneimine and acryloyl chloride; and performing a cross-linking reaction on the obtained acylated copolymer A, dimethyl diallyl ammonium chloride and diallylamine hydrochloride under the action of an initiator, so as to obtain the chlorine-resistant color fixing agent based on the polyethyleneimine structure. The chlorine-resistant color fixing agent disclosed by the invention can effectively improve the lasting chlorine-resistant color fastness and wet treatment color fastness of a fiber material, the color change of the treated fabric is small, and the hand feel of the fabric is soft. The chlorine-resistant color fixing agent is suitable for improving the chlorine-resistant bleaching fastness and the wet treatment fastness of a dyed or printed fiber material produced by reactive dyes, direct dyes, acid dyes, sulfur dyes and vat dyes.

Description

technical field [0001] The invention specifically relates to the technical field of textile dyeing and finishing auxiliaries, in particular to a preparation method of a chlorine-resistant color-fixing agent based on a polyethyleneimine structure. Background technique [0002] The water that textiles are often in contact with, such as tap water, swimming pool water, household detergent water, and chlorinated water used in industry, may contain active chlorine, which is a fungicide. In addition to oxidation and bleaching, active chlorine can also Chlorination reaction. In this way, when the textiles are in contact with the aqueous solution containing active chlorine, the dyes on the fibers are easy to contact with the active chlorine, which will be damaged by oxidation or chlorination to different degrees, resulting in changes in the color of the textiles, and greatly reducing the durability and usability of the color appearance. Therefore, this A specific issue in this area ...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08F226/02D06P5/08
CPCD06P5/08C08F283/002C08F226/02
Inventor 邹其光李中全
Owner GUANGDONG ZHAN FENG FINE CHEM CO LTD
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