阅读说明：本技术 一种高稳定低色变抗酚黄的柔软剂及其制备方法 (Softening agent with high stability, low color change and phenol yellow resistance and preparation method thereof ) 是由 黄武欢 杨中新 于 2020-06-13 设计创作，主要内容包括：本发明公开一种高稳定低色变抗酚黄的柔软剂及其制备方法,按重量份计,包括耐碱软片10-20份,分散稳定剂5-10份,低黄变嵌段硅油10-20份,抗酚黄变剂5-10份,去离子水40-70份。本发明的柔软剂通过优选合理原料,克服了阳离子柔软剂和阴离子抗酚黄变剂容易发生离子性反应的难点,稳定性佳,具有优异的耐高温、耐剪切性能,手感柔软舒适,色变黄变小,适用于白色或浅色织物的整理,同时在棉及其混纺面料的储存抗酚黄效果可以达到四级,满足出口要求。(The invention discloses a high-stability low-color-change phenol-yellow-resistant softening agent and a preparation method thereof, and the softening agent comprises, by weight, 10-20 parts of an alkali-resistant soft sheet, 5-10 parts of a dispersion stabilizer, 10-20 parts of low-yellowing block silicone oil, 5-10 parts of a phenol-yellow-resistant agent and 40-70 parts of deionized water. The softening agent disclosed by the invention overcomes the difficulty that a cationic softening agent and an anionic phenol yellowing resistant agent are easy to generate ionic reaction by preferably selecting reasonable raw materials, has good stability, excellent high temperature resistance and shear resistance, soft and comfortable handfeel and small color change yellowing, is suitable for finishing white or light-colored fabrics, and can achieve four-level phenol yellowing resistant effect in storage of cotton and blended fabrics thereof and meet export requirements.)

1. The high-stability low-color-change phenol-yellowing-resistant softening agent is characterized by comprising, by mass, 10-20 parts of an alkali-resistant soft sheet, 5-10 parts of a dispersion stabilizer, 10-20 parts of low-yellowing block silicone oil, 5-10 parts of a phenol-yellowing-resistant agent and 40-70 parts of deionized water.

2. The softening agent of claim 1, wherein the alkali-resistant soft sheet is a cationic compound formed by continuous quaternization after amidation reaction of long-chain unsaturated fatty acid such as oleic acid, or fatty acid ester stearate and polyamine compound diethylenetriamine.

3. The softening agent of claim 1, wherein the dispersion stabilizer is a fatty alcohol-polyoxyethylene ether compound with a high EO number.

4. The softening agent of claim 3, wherein the fatty alcohol-polyoxyethylene ether compound with a high EO number is one or more of fatty alcohol-polyoxyethylene ether O-25, dispersant IW of a condensate of fatty alcohol and ethylene oxide, and dispersant W of a condensate of fatty alcohol and ethylene oxide.

5. The softening agent with high stability and low color change and phenol yellow resistance as claimed in claim 1, wherein the low-yellowing block silicone oil is prepared by ring-opening polymerization of epoxy-terminated silicone oil and polyetheramine according to a molar ratio of 1:2-2:1, wherein the molecular weight of the epoxy-terminated silicone oil is 8000-20000, and the molecular weight of the polyetheramine is 200-2003.

6. The softening agent with high stability and low color change and phenol yellowing resistance as claimed in claim 1, wherein the phenol yellowing resistance agent is one or a mixture of anionic sulfonate type phenol yellowing resistance agent and anionic carboxylate type phenol yellowing resistance agent.

7. A process for preparing a high stability low color change anti-yellowing softener according to any one of claims 1-6, comprising the steps of: adding the alkali-resistant soft sheet and the dispersion stabilizer into deionized water according to the formula ratio, heating to 70-80 ℃, keeping the temperature and stirring for 60-90 minutes to obtain a uniform emulsion, then cooling to 30-40 ℃, adding the low-yellowing block silicone oil and the phenol yellowing resistant agent, stirring uniformly for 20-30 minutes, and filtering to obtain the softening agent.

Technical Field

The invention relates to a softening agent with high stability, low color change and phenol yellowing resistance and a preparation method thereof, belonging to the field of textile finishing agents.

Background

The softening agent is a conventional auxiliary agent frequently used in finishing procedures after the printing and dyeing processing industry, and is a textile chemical product capable of endowing clothes and fabrics with smooth hand feeling and soft feeling. At present, the softener is large in using amount and various in varieties in China, and gradually evolves from the traditional fatty acid amide compound to an organic silicon polymer, but in actual processing and use, a single variety is difficult to meet the requirements of customers. The non-silicon softening agent has fluffy hand feeling and low price, but has insufficient smoothness, and is poor in high temperature resistance and alkali resistance: the organic silicon softening agent has excellent hand feeling, but is easy to generate silicon oil spots, and the cloth surface color generally becomes larger along with the increase of the ammonia value and the excessive use of the organic solvent, and the storage phenol yellow in the packaging and transportation process becomes larger, which seriously troubles printing and dyeing processing factories.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a softening agent with high stability, low color change and phenol yellowing resistance and a preparation method thereof.

In order to achieve the purpose, the high-stability low-color-change phenol-yellow-resistant softening agent adopted by the invention comprises, by weight, 10-20 parts of an alkali-resistant soft sheet, 5-10 parts of a dispersion stabilizer, 10-20 parts of low-yellowing block silicone oil, 5-10 parts of a phenol-yellow-resistant softening agent and 40-70 parts of deionized water.

As an improvement, the alkali-resistant soft sheet adopts a cationic compound formed by continuous quaternization after amidation reaction of long-chain unsaturated fatty acid oleic acid and the like or fatty acid ester stearate and polyamine compound diethylenetriamine and the like.

As an improvement, the dispersion stabilizer adopts a fatty alcohol-polyoxyethylene ether compound with a high EO number.

As an improvement, the fatty alcohol-polyoxyethylene ether compound with high EO number is one or a mixture of fatty alcohol-polyoxyethylene ether O-25, a fatty alcohol and ethylene oxide condensate dispersant IW and a fatty alcohol and ethylene oxide condensate dispersant W.

As an improvement, the low-yellowing segmented silicone oil is prepared by ring-opening polymerization of epoxy-terminated silicone oil and polyether amine according to a molar ratio of 1:2-2:1, wherein the molecular weight of the epoxy-terminated silicone oil is 8000-20000, and the molecular weight of the polyether amine is 200-2003.

As an improvement, the phenol yellowing resistant agent adopts one or a mixture of two of an anionic sulfonate type phenol yellowing resistant agent and an anionic carboxylate type phenol yellowing resistant agent.

In addition, the invention also provides a preparation method of the softening agent with high stability and low color change and phenol yellowing resistance, which comprises the following steps: adding the alkali-resistant soft sheet and the dispersion stabilizer into deionized water according to the formula ratio, heating to 70-80 ℃, keeping the temperature and stirring for 60-90 minutes to obtain a uniform emulsion, then cooling to 30-40 ℃, adding the low-yellowing block silicone oil and the phenol yellowing resistant agent, stirring uniformly for 20-30 minutes, and filtering to obtain the softening agent.

Compared with the prior art, the softening agent disclosed by the invention overcomes the difficulty that a cationic softening agent and an anionic phenol yellow resistant agent are easy to generate ionic reaction through reasonable material selection and compounding, is good in stability, excellent in high temperature resistance and shear resistance, soft and comfortable in hand feeling, small in color change yellowing, and suitable for finishing white or light-colored fabrics, and meanwhile, the phenol yellow resistant effect can reach four levels in transportation and storage of cotton and blended fabrics, and the export requirement is met.

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.

The high-stability low-color-change phenol-yellow-resistant softening agent comprises, by weight, 10-20 parts of an alkali-resistant soft sheet, 5-10 parts of a dispersion stabilizer, 10-20 parts of low-color-change block silicone oil, 5-10 parts of a phenol-yellow-resistant agent and 40-70 parts of deionized water.

As an improvement, the alkali-resistant soft sheet adopts long-chain unsaturated fatty acid such as oleic acid, or adopts cationic compounds formed by continuous quaternization after amidation reaction of fatty acid ester stearate, polyamine compound diethylenetriamine and the like.

As an improvement, the dispersion stabilizer adopts a fatty alcohol-polyoxyethylene ether compound with a high EO number.

As an improvement, the fatty alcohol-polyoxyethylene ether compound with high EO number is prepared by mixing one or more of fatty alcohol-polyoxyethylene ether O-25, a fatty alcohol-ethylene oxide condensate dispersant IW and a fatty alcohol-ethylene oxide condensate dispersant W.

As an improvement, the low-yellowing segmented silicone oil is prepared by ring-opening polymerization of epoxy-terminated silicone oil and polyether amine according to a molar ratio of 1:2-2:1, wherein the molecular weight of the epoxy-terminated silicone oil is 8000-20000, and the molecular weight of the polyether amine is 200-2003.

As an improvement, the phenol yellowing resistant agent adopts one or a mixture of two of an anionic sulfonate type phenol yellowing resistant agent and an anionic carboxylate type phenol yellowing resistant agent.

In addition, the invention also provides a preparation method of the softening agent with high stability and low color change and phenol yellowing resistance, which comprises the following steps: adding the alkali-resistant soft sheet and the dispersion stabilizer into deionized water according to the formula ratio, heating to 70-80 ℃, keeping the temperature and stirring for 60-90 minutes to obtain a uniform emulsion, then cooling to 30-40 ℃, adding the low-yellowing block silicone oil and the phenol yellowing resistant agent, stirring uniformly for 20-30 minutes, and filtering to obtain the high-stability low-color-change phenol yellowing resistant softening agent.