阅读说明：本技术 一种提高棉织物染色性能的促染剂 (Accelerating agent for improving dyeing performance of cotton fabric ) 是由 王珂 于 2019-11-14 设计创作，主要内容包括：本发明涉及新型材料研发制备技术领域,公开了一种提高棉织物染色性能的促染剂,将制备得到的所述促染剂添加至活性染料稀释液中使用,对棉织品进行染色处理,所述促染剂能够降低木材与染料接触的表面张力,化学活性活泼,提高了染料分子中的活性集团自由度,降低静电排斥力,促进活性染料与棉织物纤维形成反应共价键,具有较高的均染性,保持染料的色相,并且染色后具有突出的光稳定性和热稳定性,保证了色泽鲜艳度,具有极好的耐光牢度、耐湿摩擦牢度和耐晒牢度,除此之外,还能提高染料的防水性,耐洗刷牢固度高。(The invention relates to the technical field of research and development of novel materials, and discloses an accelerating agent for improving dyeing performance of cotton fabrics.)

1. The accelerating agent for improving the dyeing performance of cotton fabrics is characterized by being added into a reactive dye diluent for use, and the preparation method comprises the following steps:

(1) weighing 24-28 ml of copper sulfate solution, placing the copper sulfate solution in a beaker, adding 60-65 ml of sodium hydroxide solution, magnetically stirring and dispersing for 30-40 minutes, heating to 45-50 ℃, adding 20-30 ml of water glass, heating in water bath to 60-70 ℃, magnetically stirring for 40-50 minutes, standing for 4-5 hours, adjusting the pH value of the system to be 9.0-9.2 by using a phosphate buffer solution, washing for 3-5 times by using ethanol and deionized water in sequence, drying for 15-20 hours in a vacuum drying box at 70-80 ℃, sending the dried system into a muffle furnace for calcining for 2-3 hours, wherein the calcining temperature is 330-;

(2) weighing 1.5-1.6 g of cerium oxide powder, placing the cerium oxide powder in a beaker, adding 20-24 ml of hydrochloric acid-n-butanol aqueous solution into the beaker, mechanically stirring for 20-30 minutes, adding the dried powder product obtained in the step (1), uniformly stirring, adding 0.8-1.0 g of KH560 coupling agent, ultrasonically dispersing for 40-50 minutes, pouring the dispersion into a reaction kettle, carrying out pressurized reaction for 6.5-7.5 hours at the reaction temperature of 110-115 ℃, filtering to remove supernatant liquid after the reaction is finished, respectively washing the residual product for 3-5 times by using deionized water and absolute ethyl alcohol, drying the product in a vacuum drying box at the temperature of 80-90 ℃, and grinding into powder to obtain the dyeing accelerant.

2. The accelerating agent for improving dyeing property of cotton fabrics according to claim 1, wherein the molar concentration of the copper sulfate solution in the step (1) is 0.7-0.8 mol/L.

3. The accelerating agent for improving dyeing property of cotton fabrics according to claim 1, wherein the molar concentration of the sodium hydroxide solution in the step (1) is 1.25-1.30 mol/L.

4. The accelerating agent for improving dyeing property of cotton fabrics according to claim 1, wherein the mass concentration of the water glass in the step (1) is 28-30%.

5. An accelerating agent for improving dyeing properties of cotton fabrics according to claim 1, wherein the particle size of the calcined product in step (1) is 1-10 μm.

6. The accelerating agent for improving dyeing property of cotton fabrics according to claim 1, wherein the mass concentration of hydrochloric acid in the hydrochloric acid-n-butanol aqueous solution in the step (2) is 5.0-5.5%, and the mass concentration of n-butanol is 34-36%.

7. The accelerating agent for improving dyeing property of cotton fabrics according to claim 1, wherein the pressure reaction pressure in the reaction kettle in the step (2) is 1.4-1.5 MPa.

8. The accelerating agent for improving dyeing property of cotton fabrics according to claim 1, wherein the ultrasonic treatment power in the step (2) is 40-45KW, and the temperature is 40-50 ℃.

9. The accelerating agent for improving dyeing performance of cotton fabrics according to claim 1, wherein the addition amount of the accelerating agent is 0.25-0.28% of the mass of the reactive dye diluent.

Technical Field

The invention belongs to the technical field of research and development and preparation of novel materials, and particularly relates to an accelerating agent for improving dyeing performance of cotton fabrics.

Background

Along with the improvement of living standard of people, more and more attention is paid to the quality of clothes materials, and cotton fabric products in the market are one of the favored choices; cotton fabric is also called cotton cloth, and is a fabric woven by using cotton yarn as a raw material. Cotton fabric is one of the most commonly used fabrics with excellent wearability, and is widely used for clothing fabrics, decorative fabrics and industrial fabrics. Cotton is the most popular clothing and home textile fabric. Multifunctional, soft, breathable, moisture-absorbing, comfortable to wear all year round, excellent performance, and durable are just a few of the many qualities that cotton cloth is welcome.

Due to the limitation of the material of the cotton fabric, the cotton fabric has some defects after dyeing treatment, namely the cotton fabric is easy to fade in the wearing or washing process, and becomes old or fades and is colored even if the cotton fabric is maintained for a long time, so that great waste is caused. At present, the dyeing of cotton fabric products is mainly carried out by using reactive dyes, but the reactive dyes need to be added with organic surfactants and auxiliaries in dyeing, a large amount of water needs to be consumed in the dyeing process, the hydrolysis of the dyes is aggravated, the resource waste is caused, and more importantly, a large amount of sewage discharge problems can be generated.

Disclosure of Invention

The invention aims to provide an accelerating agent for improving the dyeing performance of cotton fabrics, and the prepared accelerating agent is added into a reactive dye diluent for use to dye cotton fabrics.

The invention is realized by the following technical scheme:

an accelerating agent for improving dyeing performance of cotton fabrics, which is added into a reactive dye diluent for use, and the preparation method comprises the following steps:

(1) weighing 24-28 ml of copper sulfate solution, placing the copper sulfate solution in a beaker, adding 60-65 ml of sodium hydroxide solution, magnetically stirring and dispersing for 30-40 minutes, heating to 45-50 ℃, adding 20-30 ml of water glass, heating in water bath to 60-70 ℃, magnetically stirring for 40-50 minutes, standing for 4-5 hours, adjusting the pH value of the system to be 9.0-9.2 by using a phosphate buffer solution, washing for 3-5 times by using ethanol and deionized water in sequence, drying for 15-20 hours in a vacuum drying box at 70-80 ℃, sending the dried system into a muffle furnace for calcining for 2-3 hours, wherein the calcining temperature is 330-;

(2) weighing 1.5-1.6 g of cerium oxide powder, placing the cerium oxide powder in a beaker, adding 20-24 ml of hydrochloric acid-n-butanol aqueous solution into the beaker, mechanically stirring for 20-30 minutes, adding the dried powder product obtained in the step (1), uniformly stirring, adding 0.8-1.0 g of KH560 coupling agent, ultrasonically dispersing for 40-50 minutes, pouring the dispersion into a reaction kettle, carrying out pressurized reaction for 6.5-7.5 hours at the reaction temperature of 110-115 ℃, filtering to remove supernatant liquid after the reaction is finished, respectively washing the residual product for 3-5 times by using deionized water and absolute ethyl alcohol, drying the product in a vacuum drying box at the temperature of 80-90 ℃, and grinding into powder to obtain the dyeing accelerant.

As a further description of the above scheme, the molar concentration of the copper sulfate solution in step (1) is 0.7-0.8 mol/L.

As a further description of the above scheme, the molar concentration of the sodium hydroxide solution in step (1) is 1.25-1.30 mol/L.

As a further description of the scheme, the mass concentration of the water glass in the step (1) is 28-30%.

As a further description of the above scheme, the particle size of the calcined product of step (1) is between 1 and 10 microns.

As a further description of the above scheme, the hydrochloric acid-n-butanol aqueous solution in the step (2) has a mass concentration of 5.0-5.5% hydrochloric acid and a mass concentration of 34-36% n-butanol.

As a further description of the above scheme, the pressure in the reaction kettle in the step (2) is 1.4-1.5 MPa.

As a further description of the above scheme, the ultrasonic treatment power in step (2) is 40-45KW, and the temperature is 40-50 ℃.

As a further description of the scheme, the addition amount of the accelerating agent accounts for 0.25-0.28% of the mass of the reactive dye diluent.

Compared with the prior art, the invention has the following advantages: the invention provides an accelerating agent for improving the dyeing performance of cotton fabrics, which aims to solve the problem that the existing reactive dyes need to further solve the dyeing defect of the cotton fabrics, the prepared accelerating agent is added into a reactive dye diluent for use, the cotton fabrics are dyed, the accelerating agent can reduce the surface tension of wood and dye contact, has active chemical activity, improves the degree of freedom of active groups in dye molecules, reduces electrostatic repulsion force, promotes the reactive dyes and the cotton fabrics to form reaction covalent bonds, has higher leveling property, prevents hydrophilic groups such as sulfonic groups and the like in the reactive dye molecules from being hydrolyzed, neutralizes negative ions, hinders the dyes from having a hydration reaction with water, improves fiber affinity and dye utilization ratio, and can be used for dyeing cotton fibers by most of the dyes, reduces color pollution, promotes the dyes to be quickly and uniformly dyed, the hue of the dye is kept, and the dyed dye has outstanding light stability and thermal stability, so that the color brightness is ensured; wherein, the cerium oxide nano particles can be well dispersed, the wet rubbing fastness of the dyed cotton fabric can be improved (2-3 levels are improved), the dyed cotton fabric has excellent light fastness, wet rubbing fastness and light fastness, in addition, the waterproof performance of the dye can be improved, the washing fastness is high, the dyeing fastness of the reactive dye can be improved to more than 95 percent, the color fixing rate reaches more than 85 percent, the dye consumption is obviously reduced, the dyeing performance of the reactive dye on the cotton fabric is obviously improved, the dyeing time is greatly shortened, the process is simplified, the cost is obviously reduced, the economic, environmental protection and high efficiency effects are achieved, the dyeing performance of the dye can achieve the effect of being not influenced by friction, aging, cleaning, solarization and the like for a long time, the various requirements of customers on color matching of clothes are met, and a new thought is provided for developing various color dress products in the clothing manufacturing industry, the application of the dye in the field of wood is expanded, and the method has important theoretical and practical significance for the research of reactive dye dyeing technology.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described with reference to specific embodiments, and it should be understood that the specific embodiments described herein are only used for explaining the present invention and are not used for limiting the technical solutions provided by the present invention.