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Preparation method of environment-friendly and antibacterial softener for facial tissues

A kind of facial tissue, environment-friendly technology, applied in the field of preparation of softener for environment-friendly antibacterial facial tissue, can solve the problems of cost increase, product stability and poor hydrophilicity, etc., achieve production cost reduction, easy industrial operation and production, soft hand feeling Effect

Inactive Publication Date: 2019-12-20
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a polymer with a single structure, amino-modified silicone softeners are added with a large amount of organic solvents during the synthesis process, so the product requires an emulsification process, and amino silicone oil softeners with different formulations need to be emulsified by specific emulsifiers. The use of this type of softener increases the cost, and the poor product stability and hydrophilicity limit its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) In a three-necked flask equipped with a thermometer, a dropping funnel and a condensing reflux device, add an epoxy double-head with a molar ratio of 1:1 and a molecular mass of 2×10 4 , deacetylation degree is 85% chitosan, control reaction temperature is 60 ℃, reacts for 10 hours, obtains the capping agent of chitosan modification, adds appropriate amount of octamethylcyclotetrasiloxane (D4) and appropriate amount Catalyst tetramethylammonium hydroxide, catalyst tetramethylammonium hydroxide consumption is 0.05% of D4 quality, and adjustment temperature is 120 ℃, by changing the amount of D4 the chitosan modified end hydroxyl of different relative molecular mass silicone oil;

[0022] 2) Put polyethylene glycol with a molecular weight of 1450 in a three-necked flask by vacuum drying to remove water, control the temperature at 60°C, take different amounts of isophorone diisocyanate and an appropriate amount of catalyst dibutyltin dilaurate, catalyst The amount of d...

Embodiment 2

[0025] 1) In a three-necked flask equipped with a thermometer, a dropping funnel and a condensing reflux device, add an epoxy double-head with a molar ratio of 1:1 and a molecular mass of 2×10 4 , deacetylation degree is 85% chitosan, control reaction temperature is 80 ℃, react for 12 hours, get the capping agent of chitosan modification, add appropriate amount of octamethylcyclotetrasiloxane (D4) and appropriate amount Catalyst tetramethylammonium hydroxide, catalyst tetramethylammonium hydroxide consumption is 0.1% of D4 quality, and adjustment temperature is 120 ℃, by changing the amount of D4 the chitosan modified end hydroxyl of different relative molecular mass silicone oil;

[0026] 2) Put polyethylene glycol with a molecular weight of 1450 in a three-necked flask by vacuum drying to remove water, control the temperature at 80°C, take different amounts of isophorone diisocyanate and an appropriate amount of catalyst dibutyltin dilaurate, catalyst The amount of dibutylt...

Embodiment 3

[0029] 1) In a three-necked flask equipped with a thermometer, a dropping funnel and a condensing reflux device, add an epoxy double-head with a molar ratio of 1:1 and a molecular mass of 2×10 4 , deacetylation degree is 85% chitosan, control reaction temperature is 60 ℃, reacts for 12 hours, obtains the capping agent of chitosan modification, adds appropriate amount of octamethylcyclotetrasiloxane (D4) and appropriate amount Catalyst tetramethylammonium hydroxide, catalyst tetramethylammonium hydroxide consumption is 0.05% of D4 quality, and adjustment temperature is 120 ℃, by changing the amount of D4 the chitosan modified end hydroxyl of different relative molecular mass silicone oil;

[0030] 2) Put polyethylene glycol with a molecular weight of 1450 in a three-necked flask by vacuum drying to remove water, control the temperature at 60°C, take different amounts of isophorone diisocyanate and an appropriate amount of catalyst dibutyltin dilaurate, catalyst The amount of d...

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PUM

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Abstract

The invention provides a preparation method of an environment-friendly and antibacterial softener for facial tissues. The method combines the two processes of introducing chitosan modification into aquaternary ammonium salt and introducing an organosilicon softener synthesis process into ammonium ions for quaternization treatment of ammonium radicals, resources consumption caused by the quaternization treatment process of organosilicon, and also increases the antibacterial properties of the softener. Chitosan has the advantages of good biodegradability, environmental compatibility and the like serving as a natural antibacterial agent, so that the synthesized softener is safer and more environmentally friendly, and the synthesis process of the softener does not need emulsification, combination of the two processes simplifies the production procedure, and enriches the product function, thus being more beneficial to industrial production.

Description

technical field [0001] The invention relates to the field of facial tissue auxiliaries, in particular to a preparation method of an environment-friendly softener for facial tissue with antibacterial properties. [0002] technical background [0003] The fourth-generation silicone softener, that is, polyether block amino-modified silicone softener, is widely used in various fiber post-treatments due to its softness, smoothness and strong film-forming properties. It is a traditional silicone softener. mainstream. As a polymer with a single structure, amino-modified silicone softeners are added with a large amount of organic solvents during the synthesis process, so the product needs an emulsification process, and amino silicone oil softeners with different formulations need to be emulsified by specific emulsifiers. The use of this type of softener increases the cost, and the poor product stability and hydrophilicity limit its application. [0004] In this paper, in the synthe...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G18/61C08G18/10C08G77/42D21H17/57D21H19/24D21H21/14D21H27/00
CPCC08G18/10C08G18/4009C08G18/4833C08G18/61C08G77/42D21H17/57D21H19/24D21H21/14D21H27/00
Inventor 张秀梅程凯杰
Owner ZHEJIANG SCI-TECH UNIV
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