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Polyurethane-organic silicon copolymer type softener and preparation method thereof

An organosilicon and polyurethane technology, applied in the field of polyurethane-organosilicon copolymerized softener and its preparation, can solve the problems of unsuitable soft finishing of light-colored fabrics, easy yellowing of organosilicon softeners, etc. The effect of good weatherability and yellowing resistance

Inactive Publication Date: 2018-11-23
SUZHOU INSILK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyurethane-modified silicone softeners have the disadvantage of being prone to yellowing and are not suitable for soft finishing of light-colored fabrics, so research on their modification is still needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of polyurethane-organic silicon copolymer softening agent, comprising the following steps:

[0024] (1) Castor oil, polytetrahydrofuran diol, ethylenediamine polyoxypropylene tetraol, polycaprolactone triol, hydroxypropyl silicone oil, cyclohexane dimethylene diisocyanate, norbornane diisocyanate, catalyst Add it into the reaction kettle, heat to keep the temperature at 110°C, stir at a speed of 40 rpm, add acetone and stir evenly, then add the chain extender, dimethylol butyric acid continues to stir and react for 90 minutes, and add two Ethanolamine was mixed and stirred evenly, the temperature was controlled at 80°C, and the reaction was carried out for 2 hours;

[0025] (2) Lower the temperature to 40°C, put it into an emulsifier, add water to it, stir and emulsify for 3 hours, evaporate the acetone to obtain a polyurethane-organic silicon copolymer emulsion with a solid content of 40%, and add succinate lauryl ether to it Sodium acid monoester...

Embodiment 2

[0034] A preparation method of polyurethane-organic silicon copolymer softening agent, comprising the following steps:

[0035] (1) Castor oil, polytetrahydrofuran diol, ethylenediamine polyoxypropylene tetraol, polycaprolactone triol, hydroxypropyl silicone oil, cyclohexane dimethylene diisocyanate, norbornane diisocyanate, catalyst Put it into the reaction kettle, heat to keep the temperature at 120°C, stir at a speed of 60 rpm, add acetone and stir evenly, then add the chain extender, dimethylol butyric acid continues to stir and react for 120min, and add two Ethanolamine is mixed and stirred evenly, the temperature is controlled at 90°C, and the reaction is carried out for 3 hours;

[0036] (2) Lower the temperature to 55°C, put it into an emulsifier, add water to it, stir and emulsify for 4 hours, evaporate the acetone to obtain a polyurethane-organic silicon copolymer emulsion with a solid content of 40%, and add succinate lauryl ether to it Sodium acid monoester sulfon...

Embodiment 3

[0045] A preparation method of polyurethane-organic silicon copolymer softening agent, comprising the following steps:

[0046] (1) Castor oil, polytetrahydrofuran diol, ethylenediamine polyoxypropylene tetraol, polycaprolactone triol, hydroxypropyl silicone oil, cyclohexane dimethylene diisocyanate, norbornane diisocyanate, catalyst Add it into the reaction kettle, heat to keep the temperature at 110°C, stir at a speed of 60 rpm, add acetone and stir evenly, then add the chain extender, dimethylol butyric acid continues to stir and react for 90 minutes, and add two Ethanolamine was mixed and stirred evenly, the temperature was controlled at 90°C, and the reaction was carried out for 2 hours;

[0047] (2) Lower the temperature to 55°C, put it into an emulsifier, add water to it, stir and emulsify for 3 hours, evaporate the acetone to obtain a polyurethane-organic silicon copolymer emulsion with a solid content of 40%, and add succinate lauryl ether to it Sodium acid monoester s...

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PUM

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Abstract

The invention discloses a polyurethane-organic silicon copolymer type softener and a preparation method thereof. The preparation method comprises the following steps that castor oil, polytetrahydrofuran glycol, ethylene diamine polyoxypropylene tetraol, polycaprolactone triol, hydroxypropyl silicone oil, bis(isocyanatomethyl) cyclohexanef, norbornane diisocyanate, a catalyst and the like serve asraw materials to prepare a polyurethane-organic silicon copolymer emulsion, sodium laureth succinate monoester sulfonate is added into the polyurethane-organic silicon copolymer emulsion, uniform mixing and stirring are carried out, and bubbles are removed so as to obtain the polyurethane-organic silicon copolymer type softener. According to the softener and the preparation method thereof, after fabrics are treated by the softener, the hand feeling is soft, the using effect is remarkably improved, after the fabrics are used for a long time and are washed for multiple times, the fabrics can keep good softness, and yellowing is not liable to occurring.

Description

technical field [0001] The invention relates to the field of textile auxiliaries, in particular to a polyurethane-organic silicon copolymer softener and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, there are more and more requirements for textiles. Not only are fabrics required to absorb moisture, breathe freely, and be comfortable to wear, but also to have soft and smooth handles. Therefore, people are increasingly demanding the finishing of textiles. Much attention. In particular, the soft finishing of the fabric makes the fabric feel soft, improves the comfort of wearing, and improves the appearance style of the fabric. There are many kinds of softeners that have been widely used, which can be divided into non-surfactant softeners, surface active softeners, reactive softeners and silicone softeners. Among them, silicone is a fabric softener with superior performance. Due to its good molecular flexibility ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/572D06M15/568D06M13/256C08G18/66C08G18/48C08G18/50C08G18/42C08G18/61C08G18/34C08G18/32C08G18/36
CPCD06M15/572C08G18/3275C08G18/348C08G18/36C08G18/4277C08G18/482C08G18/5021C08G18/61C08G18/6629D06M13/256D06M15/568D06M2200/25D06M2200/50
Inventor 周继东
Owner SUZHOU INSILK CO LTD
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