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Preparation method and application process of anionic block silicone oil capable of being dyed in one bath

A technology of block silicone oil and same-bath dyeing, applied in the field of dyeing softeners, can solve the problems such as the production process cannot be reduced, the softener is not used, etc.

Pending Publication Date: 2021-09-10
广州安之信化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing an anionic block silicone oil that can be dyed in the same bath, so as to solve the problem that no softener can be used in the dyeing process in the prior art, resulting in the problem that the production process cannot be reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Preparation of amino-terminated block silicone oil: add 51.4 parts of double-ended epoxy silicone oil (molecular weight: 3000), 7.7 parts of polyetheramine ED-900 (NH 2 [CH 2 (CH 3 )CH 2 O] m [CH 2 CH 2 O] n CH 2 (CH 3 )CH 2 NH 2 ), 0.9 parts of diethylenetriamine, 40 parts of dipropylene glycol monobutyl ether, prepared by reaction at 120°C for 10 hours;

[0033] 2. Anion modification: add 91 parts of the above-mentioned amino-terminated block silicone oil to the reaction vessel, then add 4.3 parts of 1,4-succinic anhydride, and after 2 hours of reaction at 50°C, add 4.7 parts of diethanolamine and stir evenly , the temperature was lowered to obtain the anion-modified block silicone oil A.

[0034] 3. The application process of the silicone oil A: the dyeing equipment is a normal temperature dyeing vat, and the plain knitted cotton cloth is dyed black, the bath ratio is 1:8, the cotton cloth quality, 100kg; reactive black dye, 5kg; industrial salt, 72kg; ...

Embodiment 2

[0036] 1. Preparation of amino-terminated block silicone oil: Add 57.6 parts of double-ended epoxy silicone oil (molecular weight: 12000), 2.2 parts of polyetheramine ED-900, 0.2 part of tetraethylenepentamine, 40 parts of isopropanol, Prepared by heat preservation reaction at 80°C for 12 hours;

[0037] 2. Anion modification: Add 94 parts of the above-mentioned amino-terminated block silicone oil into the reaction vessel, then add 2.7 parts of glutaric anhydride, and after 2 hours of heat preservation at 50°C, add 3.3 parts of triethanolamine, stir evenly, and cool down to obtain the obtained The anion-modified block silicone oil B;

[0038] 3. The application process is the same as in Example 1 to obtain cotton cloth B.

Embodiment 3

[0040] 1. Preparation of amino-terminated block silicone oil: add 57.3 parts of epoxy-terminated polyether silicone oil (molecular weight: 9000), 2.4 parts of polyetheramine ED-600, 0.3 part of tetraethylenepentamine, 40 parts of ethylene glycol into the reaction vessel Monobutyl ether, prepared by heat preservation reaction at 120°C for 8 hours;

[0041] 2. Anion modification: Add 93 parts of the above-mentioned amino-terminated block silicone oil into the reaction vessel, then add 3 parts of maleic anhydride, and after 5 hours of heat preservation at 40°C, add 4 parts of triethanolamine, stir evenly, and cool down Obtain the anion-modified block silicone oil C;

[0042] 3. The application process is the same as in Example 2 to obtain cotton cloth C.

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Abstract

The invention discloses a preparation method and an application process of anionic block silicone oil capable of being dyed in one bath, and the preparation method comprises the following steps: carrying out condensation reaction on double-end epoxy silicone oil, polyether amine and polyethylene polyamine in an organic solvent to obtain amino-terminated ternary block silicone oil; and adding dicarboxylic anhydride into the amino-terminated ternary block silicone oil, stirring for reaction, and adding an alcohol amine compound to obtain an anion modified ternary block silicone oil softener. The method has the advantages that the block silicone oil is subjected to anion modification, so that the organic silicon softening agent can be self-emulsified and dispersed in water, and the ionic property of the organic silicon softening agent is the same as that of raw materials in pretreatment and dyeing processes, so that the problem of material precipitation caused by mutual adsorption of anions and cations is avoided, and a dyeing and softening one-bath process is realized; therefore, the after-finishing process is reduced, the production efficiency is greatly improved, and the problems of color spots and color spots frequently occurring in the after-finishing process are also avoided.

Description

technical field [0001] The invention relates to the technical field of fabric printing and dyeing, in particular to a softener for dyeing. Background technique [0002] The printing and dyeing production process mainly consists of three processes: pretreatment, dyeing and finishing. The existing technical solutions usually clean the fabric after pretreatment and dyeing, and then perform the softening process. The process takes a long time and the work efficiency is low. It is an anionic structure, while most softeners are cationic or weakly cationic, so they cannot be used in the same bath. This leads to the problems that the production process cannot be reduced, the water consumption is high, the energy consumption is high, the production capacity is low, and the production cost is high, and it also leads to serious environmental pollution. Therefore, it is very promising to develop a softener that can be softened and finished while dyeing. [0003] The Chinese patent pu...

Claims

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Application Information

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IPC IPC(8): C08G77/46D06M15/65D06M101/06
CPCC08G77/46D06M15/652D06M2101/06D06M2200/50
Inventor 徐却飞陈美华李兵宇袁平
Owner 广州安之信化工有限公司
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