阅读说明：本技术 一种纯棉用固色剂及其制备方法 (Color fixing agent for pure cotton and preparation method thereof ) 是由 夏继平 雷梅根 于 2019-11-26 设计创作，主要内容包括：本发明公开了一种纯棉用固色剂及其制备方法,纺织用固色剂由以下重量份的原料组成：醋酸乙烯酯20-50ml、过氧化苯甲酰1-5g、三烯丙基胺溶液10-30ml、水杨酸100-200ml、哌啶5-10ml；步骤A：在反应釜中加入20-50ml的醋酸乙烯酯溶液,然后添加1-5g的过氧化苯甲酰粉末,通过加热装置对反应釜进行加热,通过搅拌装置对反应釜内进行搅拌；步骤B：加热搅拌至过氧化苯甲酰粉末完全溶解于醋酸乙烯酯溶液后。本发明在各组分的相互作用下制得的固色剂,通过固色剂分子中的阳离子基团与染料中的阴离子基团进行静电结合,在织物表面形成不溶性的色淀,封闭染料的水溶剂基团,在染色过程中提高了染色效率,不需要反复多次进行染色,避免了水资源的浪费。(The invention discloses a color fixing agent for pure cotton and a preparation method thereof, wherein the color fixing agent for spinning is composed of the following raw materials in parts by weight: 20-50ml of vinyl acetate, 1-5g of benzoyl peroxide, 10-30ml of triallylamine solution, 200ml of salicylic acid and 5-10ml of piperidine; step A: adding 20-50ml of vinyl acetate solution into a reaction kettle, then adding 1-5g of benzoyl peroxide powder, heating the reaction kettle by a heating device, and stirring the reaction kettle by a stirring device; and B: heating and stirring until the benzoyl peroxide powder is completely dissolved in the vinyl acetate solution. According to the color fixing agent prepared under the interaction of the components, the cationic groups in the molecules of the color fixing agent are electrostatically combined with the anionic groups in the dye to form insoluble color lake on the surface of the fabric, and the hydrosolvent groups of the dye are sealed, so that the dyeing efficiency is improved in the dyeing process, the dyeing is not required to be repeatedly carried out for many times, and the waste of water resources is avoided.)

1. The color fixing agent for pure cotton spinning is characterized in that: the color fixing agent for spinning is composed of the following raw materials in parts by weight: 20-50ml of vinyl acetate, 1-5g of benzoyl peroxide, 10-30ml of triallylamine solution, 200ml of salicylic acid and 5-10ml of piperidine.

2. A preparation method of a color fixing agent for pure cotton spinning is characterized by comprising the following steps: the method comprises the following steps:

step A: adding 20-50ml of vinyl acetate solution into a reaction kettle, then adding 1-5g of benzoyl peroxide powder, heating the reaction kettle by a heating device, and stirring the reaction kettle by a stirring device;

and B: heating and stirring until benzoyl peroxide powder is completely dissolved in vinyl acetate solution, dropwise adding 10-30ml of triallylamine solution into the reaction kettle, closing the heating device after dropwise adding is finished, and stirring again;

and C: after the reaction kettle is naturally cooled to room temperature, adding 200ml of 100-plus-200 ml salicylic acid into the reaction kettle, heating the reaction kettle by the heating device again, and stirring the reaction kettle by the stirring device;

step D: after stirring, 5-10ml of piperidine is dripped into the reaction kettle, after the dripping of the piperidine is completed, the temperature of the reaction kettle is raised by a heating device, the reaction kettle is stirred by a stirring device, then the reaction kettle is kept warm, and after the temperature of the reaction kettle is reduced to room temperature, a color fixing agent finished product is obtained.

3. The method for preparing the color fixing agent for pure cotton spinning according to claim 2, characterized in that: and B, heating the temperature in the reaction kettle to 50 ℃ by using the heating device in the step A, wherein the rotating speed of the stirring device is 100 r/min.

4. The method for preparing the color fixing agent for pure cotton spinning according to claim 2, characterized in that: and C, dropwise adding the triallylamine solution into the reaction kettle while stirring the reaction kettle by the stirring device in the step B, wherein the stirring time of the stirring device is 5-10 min.

5. The method for preparing the color fixing agent for pure cotton spinning according to claim 2, characterized in that: and C, naturally cooling the reaction kettle to room temperature in the step C for 20-40min, and reheating the reaction kettle at 50 ℃.

6. The method for preparing the color fixing agent for pure cotton spinning according to claim 2, characterized in that: and D, heating the heating device in the step D at 90 ℃, stirring the mixture by the stirring device for 10-20min, and keeping the temperature of the reaction kettle for 1-2 h.

Technical Field

The invention relates to the technical field of color fixing agents, and particularly relates to a color fixing agent for pure cotton and a preparation method thereof.

Background

The pure cotton fabric is made of cotton, has the characteristics of moisture absorption, heat preservation, heat resistance, alkali resistance, sanitation and the like, and is generally good in moisture absorption and heat resistance and comfortable to wear.

The reactive dye is also called as reactive dye, the reactive dye molecule contains active groups which can react with hydroxyl in cellulose and amino in protein fiber, and generates covalent bond with the fiber during dyeing to generate a dye-fiber compound, the reactive dye has the characteristics of bright color, good level dyeing property, simple and convenient dyeing method, high dyeing fastness, complete chromatogram, lower cost and the like, and is mainly applied to dyeing and printing of fibers such as cotton, hemp, viscose, silk, wool and the like and blended fabrics thereof.

In the production process of the textile industry, some fabrics can be dyed with bright colors under the action of dyes in various process links of desizing, refining, bleaching, dyeing, finishing and the like of a textile printing and dyeing process, but poor wet treatment can affect poor fastness and serious fading and color sticking phenomena, so that the fabrics are old in appearance, pigments can fall off from dyed wet fibers and stain white or fibers dyed with other colors, and the fabrics with different colors can be stained and lapped with each other during washing, so that a color fixing agent needs to be added in the dyeing process to enhance the fastness of the pigments.

The color fixing agent is one of important assistants in printing and dyeing industry, can improve the color fastness to wet treatment of dye on fabric, can form insoluble colored matter with dye on fabric to improve color washing and perspiration fastness, and can also improve light fastness.

At present, common textile fabrics are dyed repeatedly due to poor color fixing effect of a color fixing agent, so that a large amount of water resources are wasted, and the common textile fabrics are not beneficial to people.

Disclosure of Invention

The invention aims to provide a color fixing agent for pure cotton and a preparation method thereof, which have the advantage of convenience in use of the color fixing agent for spinning and solve the problem of inconvenience in use of the color fixing agent for spinning.

In order to achieve the purpose, the invention provides the following technical scheme: the color fixing agent for the pure cotton spinning comprises the following raw materials in parts by weight: 20-50ml of vinyl acetate, 1-5g of benzoyl peroxide, 10-30ml of triallylamine solution, 200ml of salicylic acid and 5-10ml of piperidine.

The preparation method of the color fixing agent for pure cotton spinning comprises the following steps:

step A: adding 20-50ml of vinyl acetate solution into a reaction kettle, then adding 1-5g of benzoyl peroxide powder, heating the reaction kettle by a heating device, and stirring the reaction kettle by a stirring device;

and B: heating and stirring until benzoyl peroxide powder is completely dissolved in vinyl acetate solution, dropwise adding 10-30ml of triallylamine solution into the reaction kettle, closing the heating device after dropwise adding is finished, and stirring again;

and C: after the reaction kettle is naturally cooled to room temperature, adding 200ml of 100-plus-200 ml salicylic acid into the reaction kettle, heating the reaction kettle by the heating device again, and stirring the reaction kettle by the stirring device;

step D: after stirring, 5-10ml of piperidine is dripped into the reaction kettle, after the dripping of the piperidine is completed, the temperature of the reaction kettle is raised by a heating device, the reaction kettle is stirred by a stirring device, then the reaction kettle is kept warm, and after the temperature of the reaction kettle is reduced to room temperature, a color fixing agent finished product is obtained.

Preferably, the heating device in the step A heats the temperature in the reaction kettle to 50 ℃, and the rotating speed of the stirring device is 100 r/min.

Preferably, in the step B, the stirring device stirs the reaction kettle, and the triallylamine solution is dripped into the reaction kettle, and the stirring time of the stirring device is 5-10 min.

Preferably, the time for the reaction kettle to naturally cool to room temperature in the step C is 20-40min, and the reheating temperature of the reaction kettle is 50 ℃.

Preferably, the heating temperature of the heating device in the step D is 90 ℃, the stirring time of the stirring device is 10-20min, and the heat preservation time of the reaction kettle is 1-2 h.

Compared with the prior art, the invention has the following beneficial effects: according to the color fixing agent prepared under the interaction of the components, the cationic groups in the molecules of the color fixing agent are electrostatically combined with the anionic groups in the dye to form insoluble color lake on the surface of the fabric, and the hydrosolvent groups of the dye are sealed, so that the dyeing efficiency is improved in the dyeing process, the dyeing is not required to be repeatedly carried out for many times, and the waste of water resources is avoided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The color fixing agent for the pure cotton spinning comprises the following raw materials in parts by weight: 20-50ml of vinyl acetate, 1-5g of benzoyl peroxide, 10-30ml of triallylamine solution, 200ml of salicylic acid and 5-10ml of piperidine.

The preparation method of the color fixing agent for pure cotton spinning comprises the following steps:

step A: adding 20-50ml of vinyl acetate solution into a reaction kettle, then adding 1-5g of benzoyl peroxide powder, heating the reaction kettle by a heating device, and stirring the reaction kettle by a stirring device;

and B: heating and stirring until benzoyl peroxide powder is completely dissolved in vinyl acetate solution, dropwise adding 10-30ml of triallylamine solution into the reaction kettle, closing the heating device after dropwise adding is finished, and stirring again;

and C: after the reaction kettle is naturally cooled to room temperature, adding 200ml of 100-plus-200 ml salicylic acid into the reaction kettle, heating the reaction kettle by the heating device again, and stirring the reaction kettle by the stirring device;

step D: after stirring, 5-10ml of piperidine is dripped into the reaction kettle, after the dripping of the piperidine is completed, the temperature of the reaction kettle is raised by a heating device, the reaction kettle is stirred by a stirring device, then the reaction kettle is kept warm, and after the temperature of the reaction kettle is reduced to room temperature, a color fixing agent finished product is obtained.