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Preparation method of cationic organic silicon modified poly(diallyldimethylammonium chloride) fixing agent

A dimethyl diallyl ammonium chloride, cationic technology, used in dyeing, textiles and papermaking, etc., can solve the problems of unsatisfactory rubbing fastness to wet rubbing, reduce friction coefficient and improve softness. properties and slipperiness, and the effect of improving water resistance

Active Publication Date: 2014-04-09
FUJIAN QINGYUAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its color fixing mechanism is to form a color lake through the combination of quaternary ammonium salt cations in the structure and anions in the dye structure through ionic bonds to achieve the purpose of color fixing. It may have a relatively tight intermolecular force, so it should have good color fixing performance on cotton fibers, and can be applied to the color fixing of direct, vulcanized and reactive dyes on cotton fibers, but because of its ionic bond with dyes The effect and the van der Waals force between cotton fabric fibers are easily damaged under the action of external forces such as friction, resulting in rubbing fastness, especially wet rubbing fastness, which is still not ideal

Method used

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  • Preparation method of cationic organic silicon modified poly(diallyldimethylammonium chloride) fixing agent

Examples

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Embodiment 1

[0021] A cationic organosilicon-modified polydimethyldiallylammonium chloride fixing agent and a preparation method thereof, comprising the following steps:

[0022] (1) Add 0.2 kg of disodium edetate and 2 kg of the deionized water into the reaction kettle, start stirring, and after stirring completely dissolve, add from the two high-level tanks at the same time, and drop in the first high-level tank What be 350 kilograms of mass percent concentrations is the dimethyl diallyl ammonium chloride of 60%, what dropwise is 89 kilograms of vinyltrimethoxysilanes in the second high position tank, mixing and stirring;

[0023] (2) Flow nitrogen into the reactor at a rate of 50 mL / min for 60 min, and start heating;

[0024] (3) When the temperature rises to 60°C, start dripping from the third high-level tank, and the third high-level tank is dripped with 40 kilograms of an initiator solution with a mass percentage concentration of 2%. This initiator solution consists of 0.8 One kilog...

Embodiment 2

[0027] A cationic organosilicon-modified polydimethyldiallylammonium chloride fixing agent and a preparation method thereof, comprising the following steps:

[0028] (1) Add 0.4 kg of sodium gluconate and 2 kg of deionized water to the reaction kettle, start stirring, and after the stirring is completely dissolved, add it from the two high-level tanks at the same time. The first high-level tank is filled with 400 kg of dimethyl Diallyl ammonium chloride, what added in the second high position tank is 59 kilograms of vinyltriethoxysilanes, mixing and stirring;

[0029] (2) Flow nitrogen into the reactor at a rate of 80 mL / min for 45 min, and start heating;

[0030] (3) When the temperature rises to 65°C, start dripping from the third high-level tank. The third high-level tank is 20 kg of an initiator solution with a mass percentage concentration of 3%. This initiator solution is composed of 0.6 kg of ammonium persulfate Add 19.4 kg of deionized water to prepare. The dropping ...

Embodiment 3

[0033] A cationic organosilicon-modified polydimethyldiallylammonium chloride fixing agent and a preparation method thereof, comprising the following steps:

[0034] (1) Add 0.5 kg of tetrasodium ethylenediaminetetraacetic acid and 2 kg of deionized water into the reaction kettle, start stirring, and after stirring completely dissolve, add from the two high-level tanks at the same time, the first high-level tank adds 450 One kilogram of dimethyl diallyl ammonium chloride, what add in the second high position tank is 29 kilograms of vinyltriacetoxysilanes, mix and stir;

[0035] (2) Flow nitrogen into the reactor at a rate of 100 mL / min for 40 min, and start heating;

[0036] (3) When the temperature rises to 65°C, start dripping from the third high-level tank. The third high-level tank is 25 kg of an initiator solution with a mass percentage concentration of 2%. This initiator solution is composed of 0.5 kg of the Potassium sulfate and 24.5 kg of deionized water are prepared,...

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Abstract

The invention relates to the technical field of fixing agent, and provides cationic organic silicon modified poly(diallyldimethylammonium chloride) fixing agent and a preparation method thereof. The preparation method comprises the following main steps: uniformly mixing dimethyl diallyl ammonium chloride, an organic silicon monomer, chelator and deionized water; and introducing nitrogen gas to expel oxygen, then adding initiator, and performing free radical polymerization to obtain the cationic organic silicon modified poly(diallyldimethylammonium chloride) fixing agent. The fixing agent prepared through the method provided by the invention is used for finishing after dyeing, the dry and wet rubbing fastness (especially wet rubbing fastness) of anionic dye for dyeing can be enhanced, the shade is not influenced, and the feeling of textile can be kept soft; and the fixing agent prepared through the preparation method is free of formaldehyde, non-toxic and environment-friendly, and is novel dyeing and printing auxiliary agent.

Description

technical field [0001] The invention relates to the technical field of color-fixing agents, in particular to a cationic organosilicon-modified polydimethyldiallylammonium chloride color-fixing agent and a preparation method thereof. Background technique [0002] Cotton fiber (mainly composed of cellulose) is one of the four major natural fibers (cotton, wool, silk, and hemp). Due to its good hygroscopicity, warmth retention, comfort and soft feel in terms of wearing performance, and Features such as hygiene and degradable recycling are becoming more and more popular. In order to meet people's demand for different colors of clothing fabrics, fabrics are therefore dyed. The dyes used for cotton fiber dyeing usually include direct dyes, acid dyes and reactive dyes. Direct dyes, acid dyes and reactive dyes are all anionic dyes, and their molecules contain water-soluble groups such as sulfonic acid groups and carboxyl groups. Both direct dyes and acid dyes are mainly fixed on t...

Claims

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Application Information

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IPC IPC(8): C08F226/02C08F230/08D06P5/08
Inventor 郑福尔刘剑锋陈珍喜刘明华沈立新苏千德
Owner FUJIAN QINGYUAN TECH
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