WO2016065888A1

WO2016065888A1 - Environment-friendly sucrose polyester emulsion used as fabric softener and preparation method therefor

Info

Publication number: WO2016065888A1
Application number: PCT/CN2015/078858
Authority: WO
Inventors: 王际平; 张玲玲; 刘今强; 段鹏真; 张军燚; 张爱萍; 杨云飞
Original assignee: 浙江理工大学
Priority date: 2014-10-27
Filing date: 2015-05-13
Publication date: 2016-05-06

Abstract

An environment-friendly sucrose polyester emulsion used as a fabric softener and a preparation method therefor. The prepared sucrose polyester emulsion has uniform granularity, low viscosity and good stability; requires no coemulsifier or thickener, so the cost is saved and the application is simple and convenient; has a simple process and requires a few devices and a small amount of labor work; and can be stably stored and transported for a long term and is suitable for industrial production.

Description

[Invention name established by ISA according to Rule 37.2] Environmentally friendly sucrose polyester emulsion which can be used as fabric softener and preparation method thereof

Technical field

The invention belongs to the technical field of chemical raw materials, and particularly relates to an environment-friendly sucrose polyester emulsion which can be used as a fabric softener and a preparation method thereof.

Background technique

A sucrose polyester (SPE) having a high degree of esterification (i.e., a degree of esterification of n = 6 to 8) is often used as an oily base for cosmetics. SPE has a variety of functions such as oil solubility, fluidity and thixotropy, and the finished cosmetics are non-irritating, non-toxic, and odor-free to the skin. They have good stretchability after rubbing, no shrinkage and sticky feeling, and physiological physiology. No adverse effects. In addition, SPE has the appearance and taste of edible oils and fats. It is used as an alternative to edible oils and does not produce heat. It is currently the most ideal oil substitute and is widely used in the food industry.

At present, the textile industry mostly uses organic quaternary ammonium salts and silicone oils as fabric softeners, but the above two are poor in biodegradability. The use of SPE as a softener will hopefully solve the above problems. However, SPE is insoluble in water, its specific gravity is slightly smaller than water, and its molecular weight is as high as 2,400. Therefore, it is necessary to study the emulsifying properties of SPE and the preparation method of emulsion. There are currently few studies on the emulsification of SPE, and the prepared emulsions have poor stability and application properties. Wang Xinli (11-5167/TS) studied sucrose polyester (degree of esterification n=6-8), MOA-9 (fatty alcohol and ethylene oxide condensate) emulsifier, Span80 (water sorbose) The sucrose polyester emulsion prepared by the alcohol monooleate emulsifier, glycerin, thickener PTF and water can be stored for more than three months for a long time, but the emulsification temperature needs to reach a high temperature of 90 degrees, and the energy consumption is large. In addition, the addition of thickener seriously affects the application of physicochemical properties and convenient properties of sucrose polyester emulsion. There are few other literatures on the emulsification of sucrose polyesters. It can be seen that the emulsification technology of sucrose polyester still has some defects: the emulsified formula is complicated, the emulsification temperature is high, and the emulsification system is not stable enough. Although the addition of the auxiliary emulsion and the thickener will improve the stability of the emulsion, the application performance is affected and increased. Cost, industrial application value is not big.

Summary of the invention

In view of the problems existing in the prior art, it is an object of the present invention to provide an environmentally friendly sucrose polyester emulsion which can be used as a fabric softener.

The environmentally friendly sucrose polyester emulsion is characterized in that the emulsion can be used as a fabric softener.

The environmentally-friendly sucrose polyester emulsion is characterized in that the emulsion is made of sucrose polyester crude oil, and the sucrose polyester crude oil is a high esterification degree sucrose polyester, and the degree of esterification is n=6-8.

The application method of the environment-friendly sucrose polyester emulsion is characterized by the following steps:

1) The prepared emulsion is diluted with water to obtain a solid content-containing finishing liquid.

2) The fabric is padded and baked for a certain period of time.

The method for applying the environment-friendly sucrose polyester emulsion is characterized in that the solid content of the finishing liquid obtained in the step 1) is 0.1 to 5%; and the liquid carrying rate of the fabric in the step 2) is 80 ～100%, baking temperature is 80-110 ° C, baking time is 60-180 s.

The environment-friendly sucrose polyester emulsion is characterized in that the emulsion is composed of the following mass percentage components: sucrose polyester crude oil: 20-50%; nonionic emulsifier: 5-25%; water: 25-75 %.

The environment-friendly sucrose polyester emulsion characterized in that the nonionic emulsifier is one of a fatty alcohol polyoxyethylene ether, a sorbitan fatty acid ester, a fatty acid methyl ester ethoxylate or an alkyl glycoside or A variety.

The preparation method of the environment-friendly sucrose polyester emulsion is characterized in that the emulsion is composed of the following mass percentage components: sucrose polyester crude oil: 20-50%; nonionic emulsifier: 5-25%; Water: 25 to 75%, and the emulsion is prepared by the following steps:

1) Weigh one or more nonionic emulsifiers by weight ratio and stir well until uniform;

2) taking sucrose polyester crude oil by weight ratio, adding sucrose polyester to the mixed liquid of step 1, stirring and mixing well;

3) Take deionized water by weight ratio, add deionized water to the mixture of step 2, cut at high speed The sucrose polyester emulsion can then be prepared.

The preparation method of the environment-friendly sucrose polyester emulsion is characterized in that the sucrose polyester crude oil in the step 2) is slowly added to the mixed liquid in the step 1) under stirring; the step 3) The ionized water is added to the mixed liquid in the step 2) at a constant temperature of 60-90 ° C while the high-speed shearing; the deionized water needs to be added within 1 to 5 minutes, and the high-speed shearing rate is 5000 ～. 15000r/min, the total shear time is 3 to 10 minutes.

The emulsion prepared by the invention can soften various kinds of fabrics such as chemical fiber and cotton spinning as an environmentally-friendly softener, and has no toxicity, no bad stimulation, and environmental protection when used, and can be used as a softener for underwear fabrics or baby clothes. And the emulsion can be softened and completely non-toxic to the hardening of the fabric caused by various reasons in life.

Compared with the existing preparation process, the invention has the following advantages: the prepared sucrose polyester emulsion has uniform particle size, low viscosity and good stability; no need to add auxiliary emulsion and thickener, cost saving, convenient application; simple process, required Low equipment and manpower; long-term stable storage and transportation, suitable for industrial production.

detailed description

The invention prepares a sucrose polyester emulsion with uniform particle size, low viscosity and high stability by using a nonionic emulsifier, and the emulsification temperature is low and the emulsifier is safe in the formulation of the invention. Non-toxic, simple process, convenient application and long-term stable storage, suitable for industrial production.

Embodiment 1

According to the weight ratio, sucrose oil (degree of esterification 6-8) 30%, isomeric tridecyl ethoxylate (1309) emulsifier 10%, sorbitol fatty acid ester (span80) emulsifier 5%, deionized water 55%;

a mixing the 1309 emulsifier and the span80 emulsifier, and stirring well until uniform;

b slowly, under stirring, the sucrose polyester obtained is added to the mixture obtained in the step a, and stirred well;

c at 60 ° C, at high speed (10000r / min) shear, take the deionized water in 1min The medium was slowly added to the mixture obtained in the step b, and the sucrose polyester emulsion was prepared after high-speed shearing for 3 minutes.

Embodiment 2

According to the weight ratio, sucrose oil (degree of esterification 6-8) 20%, 1309 emulsifier 3%, APG emulsifier 2%, deionized water 75%;

a mixing the 1309 emulsifier and the sucrose polyester emulsifier, and stirring well until uniform;

c at 90 ° C, at high speed (5000r / min) shearing, the deionized water was slowly added to the mixture obtained in step b in 5min, a total of 10 minutes after high-speed shearing can be obtained The sucrose polyester emulsion.

Embodiment 3

According to the weight ratio, sucrose oil (degree of esterification 6-8) 50%, 1309 emulsifier 10%, span80 emulsifier 5%, APG emulsifier 5%, fatty acid methyl ester ethoxylate (FMEE) 5%, deionized 25% water;

a mixing the emulsifier taken and stirring thoroughly until uniform;

c at 80 ° C, at high speed 15000r / min shearing, the deionized water was slowly added to the mixture obtained in step b in 3min, a total of 8 minutes after high-speed shearing can be made Sucrose polyester emulsion.

Embodiment 4

According to the weight ratio, sucrose oil (degree of esterification 6-8) 30%, 1309 emulsifier 5.09%, span80 emulsifier 2.91%, deionized water 62%;

a, the 1309 emulsifier and span80 emulsifier are mixed, and stirred thoroughly until uniform;

b, under stirring, the sucrose polyester taken slowly added to the mixture obtained in the step a, fully stirred and mixed;

c. At 80 ° C, while cutting at a high speed of 10000 r / min, the deionized water is slowly added to the mixture obtained in step b in 1 min, and the high-speed shearing is performed for 3 minutes. Said product.

Embodiment 5

According to the weight ratio, sucrose oil (degree of esterification 6-8) 30%, 1309 emulsifier 4.45%, span80 emulsifier 2.55%, deionized water 63%;

Embodiment 6

According to the weight ratio, sucrose oil (degree of esterification 6-8) 30%, 1309 emulsifier 5.72%, span80 emulsifier 3.28%, deionized water 61%;

Example 7

30 g of the sucrose polyester emulsion prepared in Examples 1, 2, and 3 were weighed separately, diluted with water, and uniformly stirred to obtain a finishing liquid having a solid content of 2% (mass content). The fabric is subjected to post-finishing and soft treatment by padding process. The process flow is: padding the fabric, the rolling rate is controlled at 100%, and the baking is controlled at 100 ° C for 120 s.

The test method for fabric properties is as follows:

The fabric softness test was tested by PhabrOmeter fabric intelligent style instrument. The softness was characterized by the integrated area of stress-strain curve during the test. The smaller the integral area, the higher the softness. The wrinkle performance test was based on GB/T 3819-1997 standard in laser fabric. Test on the wrinkle elastic tester; color yellow denaturation test, heat-resistant yellow denaturation using SC-80 portable color color difference meter to test the whiteness of the fabric after soft treatment, color change using the datacolor color tester to test the soft-treated color cloth △ E, the smaller the absolute value of △E, the smaller the effect on the color change; the water repellency test is characterized by the contact angle of water droplets on the surface of the fabric, and is tested by static contact angle tester; the gas permeability is in accordance with national standard GB/T 5453-1997. YG461D digital fabric gas permeability meter test, the selected pressure difference is 100pa, suitable orifice plate.

The properties of TF-449B (Comparative Example 1) and TF-442 (Comparative Example 2) treated fabrics were tested in a parallel comparison. The test results are shown in Tables 1 and 2.

Table 1 soft, wrinkle recovery angle, yellowing test data

It can be seen from Table 1 that the cotton fabric finished by the product of the present invention has a significantly improved softness and hand feeling compared with the unfinished cotton fabric; the sucrose polyester emulsion treated fabric obtained by the embodiment of the present invention has a wrinkle recovery angle significantly higher than that of the original fabric. Increasing, indicating that the dynamic and static friction coefficient of the treated fabric is lowered, causing the wrinkle recovery angle to increase; the sucrose polyester emulsion treated fabric obtained by the embodiment of the present invention has a CIE whiteness of 71 to 72, This finishing agent has an effect of improving the whiteness of the fabric. In summary, the products of the present invention impart excellent softness and whiteness to fabrics.

Compared with TF-449B (Comparative Example 1) and TF-442 (Comparative Example 2), the fabric was improved in softness, wrinkle recovery angle and whiteness after treatment with the sucrose polyester emulsion of the present invention.

Table 2 Color change, contact angle, gas permeability test data

It can be seen from Table 2 that the colored cotton fabric which has been finished by the product of the present invention has less color change than the unfinished colored cotton fabric, indicating that the product of the present invention has less influence on the color light of the colored fabric; the sucrose polyester emulsion treated fabric obtained by using the embodiment of the present invention is used for treating the fabric. The contact angle of the water droplets on the surface of the fabric is greater than 130°, which indicates that the treated fabric has better water repellency; the sucrose polyester emulsion treated with the oxidized polyester emulsion obtained in the embodiment of the invention has a slight decrease in gas permeability, indicating that the finishing agent after treatment is The adsorption and aggregation of the fabric surface reduces the permeability of the fabric to some extent. In summary, the product of the invention can impart better water repellency to the fabric, has less influence on the color light, and has less influence on the gas permeability of the fabric.

Compared with TF-449B (Comparative Example 1) and TF-442 (Comparative Example 2), the fabrics treated with the sucrose polyester emulsion of the present invention were improved in shade, water repellency and gas permeability.

Claims

An environmentally friendly sucrose polyester emulsion characterized in that the emulsion can be used as a fabric softener.
The environment-friendly sucrose polyester emulsion according to claim 1, wherein the emulsion is made of sucrose polyester crude oil, the sucrose polyester crude oil is a high esterification degree sucrose polyester, and the degree of esterification is n=6~ 8.
A method for applying an environmentally-friendly sucrose polyester emulsion according to any one of claims 1 to 2, characterized by comprising the steps of:

1) The prepared emulsion is diluted with water to obtain a solid content-containing finishing liquid.

2) The fabric is padded and baked for a certain period of time.
The method for applying an environment-friendly sucrose polyester emulsion according to claim 3, wherein the finishing liquid obtained in the step 1) has a solid content of 0.1 to 5%; and the step 2) The liquid rate is 80-100%, the baking temperature is 80-110 ° C, and the baking time is 60-180 s.
The environment-friendly sucrose polyester emulsion according to claim 1, wherein the emulsion is composed of the following mass percentage components: sucrose polyester crude oil: 20 to 50%; nonionic emulsifier: 5 to 25%; water : 25 to 75%.
The environment-friendly sucrose polyester emulsion according to claim 1, wherein the nonionic emulsifier is a fatty alcohol polyoxyethylene ether, a sorbitan fatty acid ester, a fatty acid methyl ester ethoxylate, an alkyl glycoside. One or more.
The invention relates to a method for preparing an environment-friendly sucrose polyester emulsion, characterized in that the emulsion is composed of the following mass percentage components: sucrose polyester crude oil: 20-50%; nonionic emulsifier: 5-25%; water: 25 ~75%, and the emulsion is prepared by the following steps:

1) Weigh one or more nonionic emulsifiers by weight ratio and stir well until uniform;

2) taking sucrose polyester crude oil by weight ratio, adding sucrose polyester to the mixed liquid of step 1, stirring and mixing well;

3) Take deionized water by weight ratio, add deionized water to the mixture of step 2, cut at high speed The sucrose polyester emulsion can then be prepared.
The method for preparing an environment-friendly sucrose polyester emulsion according to claim 7, characterized in that the sucrose polyester crude oil in the step 2) is slowly added to the mixed liquid in the step 1) under stirring; Deionized water in the mixture is added to the mixture in step 2) at a constant temperature of 60-90 ° C; the deionized water needs to be added within 1 to 5 minutes, high-speed shearing The rate is 5000 to 15000 r/min, and the total shear time is 3 to 10 min.