阅读说明：本技术 一种可用于高温缸中棉类亲水柔软剂的制备 (Preparation of cotton hydrophilic softening agent used in high-temperature cylinder ) 是由 徐美君 孙丽娟 查鹏程 于 2019-10-11 设计创作，主要内容包括：本发明涉及一种可用于高温缸中棉类亲水柔软剂的制备,具体步骤为：将端氢、烯丙基环氧聚醚和异丙醇按比例混合后加入催化剂进行反应,然后依次加入四甲基己二胺、耐高温稳定剂、溶剂得到嵌段硅油,在嵌段硅油中加入乙二醇单丁醚、乳化剂和两性表面活性剂,将以上混合物充分混合均匀后缓缓加入混合了冰醋酸的去离子水,最终得到透明微带蓝光的有机硅亲水柔软剂。本发明的一种可用于高温缸中棉类亲水柔软剂的制备,具有操作安全、制备简单、不需要特殊的安全设备的技术效果,其制备得到的柔软剂具有良好的亲水性、柔软性、耐高温性,能够在高温染缸与少量阴离子共存。(The invention relates to a preparation method of cotton hydrophilic softening agent used in high temperature cylinder, which comprises the following steps: mixing hydrogen-terminated epoxy polyether, allyl epoxy polyether and isopropanol in proportion, adding a catalyst for reaction, then sequentially adding tetramethyl hexamethylene diamine, a high-temperature resistant stabilizer and a solvent to obtain block silicone oil, adding ethylene glycol monobutyl ether, an emulsifier and an amphoteric surfactant to the block silicone oil, fully and uniformly mixing the above mixture, and slowly adding deionized water mixed with glacial acetic acid to finally obtain the transparent micro-blue silicone hydrophilic softener. The cotton hydrophilic softening agent can be used for preparing cotton hydrophilic softening agents in high-temperature dye vats, has the technical effects of safe operation, simple preparation and no need of special safety equipment, and the prepared softening agent has good hydrophilicity, flexibility and high temperature resistance and can coexist with a small amount of anions in the high-temperature dye vats.)

1. A preparation method of cotton hydrophilic softening agent used in high temperature cylinder is characterized in that: the method comprises the following steps:

(1) synthesis of saline-alkali resistant block silicone oil

Mixing hydrogen-terminated, allyl epoxy polyether and isopropanol according to a proportion, heating to 50 ~ 60 ℃, adding a catalyst, continuing to heat up, carrying out a heat preservation reaction, then cooling, adding tetramethylhexamethylenediamine, heating, then carrying out heat preservation, cooling, adding a saline-alkali resistant stabilizer and an equal part of ethylene glycol monobutyl ether, heating, then carrying out heat preservation for 2 hours, and cooling to obtain saline-alkali resistant block silicone oil;

(2) preparation of organosilicon hydrophilic softener

And (2) adding ethylene glycol monobutyl ether, an emulsifier and a high-temperature-resistant amphoteric surfactant into the saline-alkali-resistant block silicone oil prepared in the step (1), fully and uniformly mixing the mixture, slowly adding deionized water mixed with glacial acetic acid, and uniformly stirring at a high speed while adding to obtain the hydrophilic softener.

2. The preparation method of the cotton hydrophilic softening agent used in the high-temperature cylinder according to claim 1 is characterized in that the specific steps of the step (1) are that hydrogen-terminated, allyl epoxy polyether and isopropanol are mixed in proportion, the temperature is raised to 50 ~ 60 ℃, a catalyst is added, the temperature is raised to 81 ℃, the temperature is kept for reaction for 2 hours, then the temperature is lowered to 60 ℃, tetramethylhexanediamine is added, the temperature is raised to 81 ℃, the temperature is kept for 5 hours, the temperature is lowered to 60 ℃, a saline-alkali resistant stabilizer and an equal part of ethylene glycol monobutyl ether are added, the temperature is raised to 81 ℃, the temperature is kept for 2 hours, and the saline-alkali resistant block silicone oil is obtained by lowering the temperature.

3. The preparation method of cotton-like hydrophilic softener according to claim 1, which is used in high temperature jar, characterized in that: in the step (1), the molecular weight of the terminal hydrogen is 10000, and the molecular weight of the allyl epoxy polyether is 480.

4. The preparation method of the cotton hydrophilic softener used in the high-temperature cylinder according to claim 1, wherein the mass ratio of the hydrogen-terminated, allyl epoxy polyether and isopropanol in the step (1) is 10:1:4 ~ 10:1: 5.

5. The preparation method of the cotton hydrophilic softener used in the high-temperature cylinder according to claim 1 is characterized in that the catalyst in the step (1) is chloroplatinic acid, and the amount of the catalyst is 1.5 per thousand ~ 2 per thousand of the hydrogen termination mass.

6. The preparation method of cotton-like hydrophilic softener used in high temperature cylinder according to claim 5, characterized in that: the catalyst is a 1% chloroplatinic acid isopropanol solution.

7. The method for preparing cotton-based hydrophilic softener according to claim 1, wherein the tetramethylhexamethylenediamine in step (1) is quaternized tetramethylhexamethylenediamine, and glacial acetic acid is slowly added into the tetramethylhexamethylenediamine under stirring, and the amount of the tetramethylhexamethylenediamine is 4% ~ 6% of the mass of terminal hydrogen.

8. The preparation method of cotton-like hydrophilic softener according to claim 1, which is used in high temperature jar, characterized in that: the dosage of the high-temperature resistant stabilizer in the step (1) is 3-5% of the total mass.

9. The preparation method of cotton-like hydrophilic softener according to claim 1, which is used in high temperature jar, characterized in that: the emulsifier in the step (2) is one or two of XP-70 and TO-10.

10. The preparation method of cotton-like hydrophilic softener according to claim 1, which is used in high temperature jar, characterized in that: in the step (2), the amphoteric surfactant is octadecyl dimethyl amine caprolactone.

Technical Field

The invention belongs to the technical field of textile finishing, and particularly relates to a preparation method of a cotton hydrophilic softening agent used in a high-temperature cylinder.

Background

The cotton has the advantages of air permeability, sweat absorption, comfort, softness, good heat retention, static resistance, strong alkali resistance, good dyeing property and the like, is one of the most used natural fibers, and the textile dyeing and finishing process of the cotton fabric is mature.

In the post-finishing process of cotton fabrics, a softening agent is often used to enable the cotton fabrics to have hydrophilic, soft and fluffy handfeel, and most importantly, with the increasing requirements on environmental protection in the current stage and the principle of energy conservation and emission reduction, more and more enterprises carry out softening treatment on the fabrics in dye vats, so that the innovation and the reform of production require that the softening agent has more performances.

The conventional softening agent for cotton is weak cationic, and generates flocculent precipitate and is stained on the cloth cover when being co-bathed with an anionic dye vat, thereby causing great trouble to production. And the temperature of the common dye vat is higher, and the softening agent is indirectly required to have high temperature resistance.

Chinese patent (CN 106521943A) discloses a special liquid fabric softener for a laundry and a preparation method thereof, wherein the fabric softener comprises diester quaternary ammonium salt, dodecyl dimethyl betaine, amido ethoxy quaternary ammonium salt, amino silicone oil, isopropanol, a whitening agent, a preservative, essence and water, and the fabric softener has the antistatic effect and good hydrophilic softening effect, and also has multiple good effects of corrosion inhibition, dispersion and whitening, but the softener does not have high temperature resistance and is easy to generate flocculent precipitates when being co-bathed with an anionic dye vat.

Disclosure of Invention

The invention aims to provide a cotton hydrophilic softening agent which can be used for preparing a high-temperature vat, has the technical effects of safe operation, simple preparation and no need of special safety equipment, and the prepared softening agent has good hydrophilicity, flexibility and high temperature resistance and can coexist with a small amount of anions in the high-temperature vat.

The technical scheme adopted by the invention for solving the problems is as follows: a method for preparing cotton hydrophilic softening agent used in high temperature jar comprises the following steps:

(1) synthesis of saline-alkali resistant block silicone oil

Mixing hydrogen-terminated, allyl epoxy polyether and isopropanol according to a proportion, heating to 50 ~ 60 ℃, adding a catalyst, continuing to heat up, carrying out a heat preservation reaction, then cooling, adding tetramethyl hexamethylene diamine, heating, then carrying out heat preservation, cooling, adding a saline-alkali resistant stabilizer and an equal part of ethylene glycol monobutyl ether, heating, then carrying out heat preservation for 2 hours, and cooling to obtain the saline-alkali resistant block silicone oil.

(2) Preparation of organosilicon hydrophilic softener

And (2) adding ethylene glycol monobutyl ether, an emulsifier and a high-temperature-resistant amphoteric surfactant into the saline-alkali-resistant block silicone oil prepared in the step (1), fully and uniformly mixing the mixture, slowly adding deionized water mixed with glacial acetic acid, and uniformly stirring at a high speed while adding to obtain the hydrophilic softener.

Preferably, the specific step of the step (1) is that hydrogen-terminated, allyl epoxy polyether and isopropanol are mixed according to a proportion, the temperature is raised to 50 ~ 60 ℃, a catalyst is added, the temperature is raised to 81 ℃, the temperature is kept for reaction for 2 hours, then tetramethyl hexamethylene diamine is added after the temperature is lowered to 60 ℃, the temperature is raised to 81 ℃, the temperature is kept for 5 hours, the temperature is lowered to 60 ℃, a saline-alkali resistant stabilizer and an equal part of ethylene glycol monobutyl ether are added, the temperature is raised to 81 ℃, the temperature is kept for 2 hours, and the saline-alkali resistant block silicone oil can be obtained after the temperature is lowered.

Preferably, the molecular weight of the terminal hydrogen in the step (1) is 10000, and the molecular weight of the allyl epoxy polyether is 480.

Preferably, the mass ratio of the terminal hydrogen, the allyl epoxy polyether and the isopropanol in the step (1) is 10:1:4 ~ 10:1: 5.

Preferably, the catalyst in the step (1) is chloroplatinic acid, and the dosage of the catalyst is 1.5 per mill ~ 2 per mill of the mass of the terminal hydrogen.

More preferably, the catalyst is a 1% solution of chloroplatinic acid in isopropanol.

Preferably, the tetramethylhexamethylenediamine in the step (1) is quaternized tetramethylhexamethylenediamine, and glacial acetic acid is slowly added into the tetramethylhexamethylenediamine under the stirring condition, and the amount of the tetramethylhexamethylenediamine is 4% ~ 6% of the mass of terminal hydrogen.

Preferably, the dosage of the high-temperature resistant stabilizer in the step (1) is 3-5% of the total mass.

Preferably, the emulsifier in the step (2) is one or two of XP-70 and TO-10.

Preferably, the amphoteric surfactant in step (2) is octadecyl dimethyl amine caprolactone.

Compared with the prior art, the invention has the advantages that:

(1) the invention provides a method for preparing cotton hydrophilic softening agent in high temperature cylinder, which has safe operation in the whole process, simple preparation and no need of special safety equipment.

(2) The cotton hydrophilic softening agent for the high-temperature vat, which is obtained by the preparation method, is a softening agent compounded by the organic silicon emulsion, the amphoteric surfactant and the stabilizer, provides extremely smooth, soft and fluffy hand feeling and good hydrophilicity of the knitted cotton fabric, and has the characteristic of coexistence with a small amount of anions in the high-temperature vat, so that the problems of energy conservation and emission reduction in production are solved.

(3) The reaction time of the saline-alkali resistant stabilizer is kept at 2 hours, the reaction time is short, the reaction is insufficient, and the final fabric hand feeling is influenced by the long reaction time.

Detailed Description

The present invention will be described in further detail with reference to examples.