阅读说明：本技术 一种织物用环保型高温匀染剂的制备方法 (Preparation method of environment-friendly high-temperature leveling agent for fabric ) 是由 杨晓凤 田飞 于 2020-12-30 设计创作，主要内容包括：本发明属于精细化学品技术领域,更具体的涉及一种织物用环保型高温匀染剂的制备方法。本发明首次采用精氨酸与环氧乙烷聚合制备出匀染剂母液,然后与尿素、氨基磺酸一锅法制备出最终产品织物用环保型高温匀染剂。原料绿色环保、生产条件更为简便,利于生产。制备出的织物用环保型高温匀染剂不仅绿色环保,且移染性能优异(移染率高达42.6％)。(The invention belongs to the technical field of fine chemicals, and particularly relates to a preparation method of an environment-friendly high-temperature leveling agent for fabrics. The invention adopts arginine and ethylene oxide polymerization to prepare leveling agent mother liquor for the first time, and then prepares the environment-friendly high-temperature leveling agent for the final product fabric with urea and sulfamic acid by a one-pot method. Green and environment-friendly raw materials, simple and convenient production conditions and contribution to production. The prepared environment-friendly high-temperature leveling agent for the fabric is not only environment-friendly, but also excellent in migration property (the migration rate is as high as 42.6%).)

1. A preparation method of an environment-friendly high-temperature leveling agent for fabrics comprises the following steps:

1) carrying out ultrasonic reaction on arginine and ethylene oxide at 190 ℃ under the catalysis of tetramethylammonium hydroxide for 1-2h, and adjusting the pH value to 6.2-7.0 by using acetic acid after the reaction is finished to obtain leveling agent mother liquor;

2) uniformly stirring the leveling agent master batch, urea and sulfamic acid, heating to 140-.

2. The method of claim 1, wherein: the molar ratio of the arginine to the ethylene oxide in the step 1) is 1: 3-10; the adding amount of the tetramethylammonium hydroxide is 0.1-0.5% of the using amount of the ethylene oxide.

3. The method of claim 2, wherein: the weight ratio of the leveling agent master batch to the sulfamic acid in the step 2) is 10-12:1, and more preferably 11: 1.

4. the production method according to claim 3, characterized in that: the weight ratio of the leveling agent master batch to the sulfamic acid in the step 2) is 11: 1.

5. The production method according to any one of claims 1 to 4, characterized in that: the weight ratio of the urea to the leveling agent master batch in the step 2) is 2-5: 100.

Technical Field

The invention belongs to the technical field of fine chemicals, and particularly relates to a preparation method of an environment-friendly high-temperature leveling agent for fabrics.

Background

The high-temperature leveling agent is mainly a dyeing auxiliary agent for polyester fabrics, the basic component of the polyester is polyethylene terephthalate, and the polyester lacks active groups capable of being combined with dyes in terms of the molecular structure of the polyester, so that the polyester fabric cannot be dyed by directly adopting acid dyes, active dyes and the like, and can only be dyed by adopting water-insoluble disperse dyes. And because the terylene molecules are arranged more closely, only small gaps exist in the fiber, the dye molecules are difficult to enter the fiber at low temperature, and the dye molecules can enter the fiber only when the molecular chain of the fiber moves rapidly and forms large gaps instantly at high temperature. Therefore, the dyeing of the polyester fiber is carried out by using the disperse dye under the high temperature condition (120 ℃ C. and 130 ℃ C.).

Although the dyeing effect of the high-temperature leveling agent reported at present is good, most of the high-temperature leveling agent contains styrol and phenols, and the styrol and the phenols are difficult-to-degrade and environment-friendly substances and belong to articles prohibited from international use. CN 102828422B discloses a synthesis method of an environment-friendly high-temperature leveling agent, and the prepared environment-friendly high-temperature leveling agent does not contain styrene phenol, phenol and other non-environment-friendly components, and belongs to an environment-friendly product. Although the raw materials belong to environment-friendly products, the prepared high-temperature leveling agent has poor migration property.

Disclosure of Invention

1. The invention aims to provide a novel method.

The invention provides a preparation method of an environment-friendly high-temperature leveling agent for fabrics, which uses arginine as a raw material to replace oleic acid, so that the prepared high-temperature leveling agent is not only environment-friendly, but also has excellent migration performance.

2. The technical scheme adopted by the invention is disclosed.

The invention realizes the aim through the following technical scheme, and the preparation method of the environment-friendly high-temperature leveling agent for the fabric comprises the following steps:

1) carrying out ultrasonic reaction on arginine and ethylene oxide at 190 ℃ under the catalysis of tetramethylammonium hydroxide for 1-2h, and adjusting the pH value to 6.2-7.0 by using acetic acid after the reaction is finished to obtain leveling agent mother liquor;

2) uniformly stirring the leveling agent master batch, urea and sulfamic acid, heating to 140-.

Preferably, the molar ratio of the arginine to the ethylene oxide in the step 1) is 1: 3-10; the adding amount of the tetramethylammonium hydroxide is 0.1 to 0.5 percent of the using amount of the ethylene oxide;

preferably, the weight ratio of the leveling agent master batch to the sulfamic acid in the step 2) is 10-12:1, and further preferably 11: 1; experimental results show that the higher the weight ratio of the master batch of the leveling agent to the sulfamic acid is, the better the leveling effect of the prepared leveling agent is, and the weight ratio of the master batch of the leveling agent to the sulfamic acid is preferably 11: 1.

Preferably, the weight ratio of the urea to the leveling agent master batch in the step 2) is 2-5: 100; the urea plays a role of a catalyst in the reaction, and on the premise of realizing the catalytic effect, the ordinary skilled person in the art can reasonably increase and decrease the urea according to the performance of the leveling agent.

3. The technical effect produced by the invention.

(1) The invention adopts arginine and ethylene oxide polymerization to prepare leveling agent mother liquor for the first time, and then prepares the environment-friendly high-temperature leveling agent for the final product fabric with urea and sulfamic acid by a one-pot method. Green and environment-friendly raw materials, simple and convenient production conditions and contribution to production.

(2) The environment-friendly high-temperature leveling agent for the fabric, which is prepared by the invention, is not only environment-friendly, but also excellent in migration property.

Detailed Description

The test formula of the migration property is that the tested auxiliary agent is 2 g/L; the bath ratio is 20: 1; the pH was 5 at 130 ℃ for 30 min. The method comprises the steps of putting the terylene colored cloth and the white cloth with the same specification into a dyeing cup, and dyeing on a high-temperature high-pressure machine. Grading according to the color difference of the colored cloth and the white cloth after dyeing. The smaller the difference, the better the migration property. The transfer rate (%) - { K/S value of transfer-dyed cloth/K/S value of transfer-dyed raw cloth } × 100%.

Example 1

1) 1g of arginine and 10g of ethylene oxide are subjected to ultrasonic reaction at 190 ℃ under the catalysis of 20mg of tetramethylammonium hydroxide for 1-2h, and after the reaction is finished, acetic acid is adopted to adjust the pH value to 6.2-7.0 to obtain leveling agent mother liquor;

2) stirring all the leveling agent master batches obtained in the step 1), urea (2-5% of the weight of the leveling agent master batches) and 1.1g of sulfamic acid uniformly, heating to 140-.

Example 2

1) Carrying out ultrasonic reaction on 3g of arginine and 10g of ethylene oxide at the temperature of 180-190 ℃ for 1-2h under the catalytic action of 30mg of tetramethylammonium hydroxide, and adjusting the pH value to 6.2-7.0 by adopting acetic acid after the reaction is finished to obtain leveling agent mother liquor;

2) stirring all the leveling agent master batches obtained in the step 1), urea (2-5% of the weight of the leveling agent master batches) and 1.1g of sulfamic acid uniformly, heating to 140-.

Example 3

1) 2g arginine and 10g ethylene oxide are subjected to ultrasonic reaction at 190 ℃ under the catalysis of 30mg tetramethylammonium hydroxide for 1-2h, and after the reaction is finished, acetic acid is adopted to adjust the pH value to 6.2-7.0 to obtain leveling agent mother liquor;

2) stirring all the leveling agent master batches obtained in the step 1), urea (2-5% of the weight of the leveling agent master batches) and 1.18g of sulfamic acid uniformly, heating to 140-.

And (3) performance detection, namely, carrying out a level dyeing effect test on the environment-friendly high-temperature leveling agent prepared in the embodiment 1-3, wherein the result shows that the environment-friendly high-temperature leveling agent prepared in the embodiment 1-3 has excellent level dyeing performance. However, the performance of the environment-friendly high-temperature leveling agent prepared in example 3 (42.6%) is significantly better than that of example 1 (21.2%) and example 2 (30.6%) in terms of the dye-transfer rate, and is also better than that of the environment-friendly high-temperature leveling agent prepared in CN 102828422B (the dye-transfer rate is 23.5%).

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.