阅读说明：本技术 一种织物用活性亲水固色剂及其制备方法 (Active hydrophilic color fixing agent for fabric and preparation method thereof ) 是由 庄育盛 杨中新 于 2020-06-13 设计创作，主要内容包括：本发明公开一种织物用活性亲水固色剂及其制备方法,属于纺织助剂领域,包括二甲基二丙烯基氯化铵、二烯丙基胺、丙烯酰胺、双氰胺、水和引发剂；按质量份计,二甲基二丙烯基氯化铵、二烯丙基胺、丙烯酰胺、双氰胺、水分别为30-50份、1-5份、1-5份、1-5份、40-60份；引发剂的用量为二甲基二丙烯基氯化铵、二烯丙基胺、丙烯酰胺和水总质量的0.01-0.02％。本发明由多种多胺化合物共聚成线性的高分子阳离子化合物,制备方法简单,制得的活性亲水固色剂能有效提高活性染料染色及印花的色牢度(洗水、淹水、汗渍等牢度),且具有良好亲水性,不影响其后道加工效果,对织物色光影响极小。(The invention discloses an active hydrophilic color fixing agent for fabrics and a preparation method thereof, belonging to the field of textile auxiliary agents and comprising dimethyl diallyl ammonium chloride, diallyl amine, acrylamide, dicyandiamide, water and an initiator; according to the mass parts, the dimethyl diallyl ammonium chloride, the diallyl amine, the acrylamide, the dicyandiamide and the water are respectively 30-50 parts, 1-5 parts and 40-60 parts; the dosage of the initiator is 0.01-0.02% of the total mass of the dimethyl diallyl ammonium chloride, the diallyl amine, the acrylamide and the water. The preparation method is simple, and the prepared active hydrophilic color fixing agent can effectively improve the color fastness (such as fastness to washing, flooding, perspiration and the like) of dyeing and printing of the active dye, has good hydrophilicity, does not influence the subsequent processing effect, and has little influence on the color and light of fabrics.)

1. An active hydrophilic color fixing agent for fabrics is characterized by comprising dimethyl diallyl ammonium chloride, diallyl amine, acrylamide, dicyandiamide, water and an initiator; according to the mass parts, the dimethyl diallyl ammonium chloride, the diallyl amine, the acrylamide, the dicyandiamide and the water are respectively 30-50 parts, 1-5 parts and 40-60 parts;

the dosage of the initiator is 0.01-0.02% of the total mass of the dimethyl diallyl ammonium chloride, the diallyl amine, the acrylamide and the water.

2. The active hydrophilic color fixing agent for the fabrics according to claim 1, which is characterized by comprising the following raw materials in parts by mass: 40 parts of dimethyl diallyl ammonium chloride, 2.8 parts of diallylamine, 1.2 parts of acrylamide, 2 parts of dicyandiamide and 54 parts of water.

3. The reactive hydrophilic color fixing agent for fabrics of claim 1, wherein the initiator is ammonium persulfate.

4. A method for preparing the active hydrophilic color fixing agent for the fabric according to any one of claims 1 to 3, which comprises the following steps:

1) at 85-95 ℃, adding dimethyl diallyl ammonium chloride, diallyl amine, acrylamide, water and an initiator according to the formula ratio into a reaction container, and carrying out polymerization reaction for 3-5 hours to form an active color fixing agent;

2) carrying out condensation reaction on the active color fixing agent prepared in the step 1) and dicyandiamide with the formula amount at the temperature of 80-85 ℃ for 1-2 hours to obtain the active hydrophilic color fixing agent.

Technical Field

The invention relates to an active hydrophilic color fixing agent for fabrics and a preparation method thereof, belonging to the field of textile auxiliary agents.

Background

The reactive dye has the advantages of complete color spectrum, bright color, proper price, simplicity, easy color matching and the like, and is widely applied to the dyeing, printing and the like of cellulose fibers. In high-temperature alkaline dyeing baths and washes, the inevitable hydrolysis reaction during the bonding of reactive dyes and cellulose fibers can cause flooding and affect the color vividness and color fastness of dyed fabrics, so that full soaping and color fixation are required after dyeing, and the development of a color fixing agent capable of improving various color fastnesses without affecting the hydrophilicity of the fabrics is imperative.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the active hydrophilic color fixing agent which can improve the color fastness (fastness of washing, flooding, perspiration and the like) of dyeing and printing of the active dye, has good hydrophilicity and has little influence on the color light of fabrics.

The invention also aims to provide a preparation method of the active hydrophilic color fixing agent.

In order to achieve the purpose, the active hydrophilic color fixing agent for the fabric comprises dimethyl diallyl ammonium chloride, diallyl amine, acrylamide, dicyandiamide, water and an initiator; according to the mass parts, the dimethyl diallyl ammonium chloride, the diallyl amine, the acrylamide, the dicyandiamide and the water are respectively 30-50 parts, 1-5 parts and 40-60 parts;

the dosage of the initiator is 0.01-0.02% of the total mass of the dimethyl diallyl ammonium chloride, the diallyl amine, the acrylamide and the water.

The improved material comprises the following raw materials in parts by mass: 40 parts of dimethyl diallyl ammonium chloride, 2.8 parts of diallylamine, 1.2 parts of acrylamide, 2 parts of dicyandiamide and 54 parts of water.

As a modification, the initiator adopts ammonium persulfate.

In addition, the invention also provides a preparation method of the active hydrophilic color fixing agent for the fabric, which comprises the following steps:

1) at 85-95 ℃, adding dimethyl diallyl ammonium chloride, diallyl amine, acrylamide, water and an initiator according to the formula ratio into a reaction container, and carrying out polymerization reaction for 3-5 hours to form an active color fixing agent;

2) carrying out condensation reaction on the active color fixing agent prepared in the step 1) and dicyandiamide with the formula amount at the temperature of 80-85 ℃ for 1-2 hours to obtain the active hydrophilic color fixing agent.

The structural formula of the active hydrophilic color fixing agent is as follows:

the method comprises the steps of carrying out synthetic reaction on dimethyl diallyl ammonium chloride, diallyl amine and acrylamide under the action of an initiator to form a polyamine compound, carrying out dicyandiamide condensation reaction to form a hydrophilic color fixing agent (namely, forming an active color fixing cross-linked body by ternary polymerization and carrying out condensation reaction on dicyandiamide to obtain the hydrophilic color fixing agent), wherein the color fixing mechanism mainly uses a self network structure and dye to form macromolecules, so that the wet treatment fastness, the bubble fastness and the soaping fastness of dyed fabrics are improved, the molecular weight of the dye is controlled within the range of 1000-.

Compared with the prior art, the preparation method is simple, the prepared active hydrophilic color fixing agent can effectively improve the color fastness (washing and flooding fastness) of the reactive dye dyeing and printing, has good hydrophilicity, does not influence the subsequent processing effect, and has little influence on the color light of the fabric.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention. Unless otherwise specified, all the raw materials used in the present invention can be purchased from the market.