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A kind of preparation method of cotton fabric hydrophilic softener

A technology of softener and cotton fabric, which is applied in the field of preparation of hydrophilic softener for cotton fabric, can solve the problems of large yellowing, poor fabric feel, and reduction of polysiloxane, so as to improve water absorption, not easy to oxidize, and high The effect of softness

Active Publication Date: 2020-08-28
浙江固高科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the introduction of a large number of polyether hydrophilic groups into the main chain, the polysiloxane is reduced, so the fabric after finishing has a poor hand feel, and it is difficult to achieve the effect of good hand feel and hydrophilicity at the same time, and the whiteness is poor and yellowing Big

Method used

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  • A kind of preparation method of cotton fabric hydrophilic softener

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Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, a method for preparing a hydrophilic softener for cotton fabrics, comprising the following steps: step S1, preparing epoxy-based silicone oil: adding epoxy double head and octamethylcyclotetrasiloxane to the reaction flask, After stirring and mixing, add the catalyst tetramethylammonium hydroxide, control the reaction temperature at 110°C, and react for 8 hours to obtain the epoxy-based silicone oil shown in formula A; step S2, prepare the target product: prepare the epoxy resin obtained in step S1 Add base silicone oil and tetramethylethylenediamine into the reaction flask at a molar ratio of 1:1, add isopropanol at the same time and stir evenly, then add formic acid catalyst, heat up to 90°C, and react for 6 hours to obtain the formula B. The target product; Formula A: Where a is 1 and b is greater than 1.

Embodiment 2

[0025] Example 2, a method for preparing a hydrophilic softener for cotton fabrics, differs from Example 1 in that a mixture of epoxy double head and dimethylcyclosiloxane is added to a reaction flask for reaction.

Embodiment 3

[0026] Embodiment 3, a kind of preparation method of cotton fabric hydrophilic softening agent, the difference with embodiment 1 is that the epoxy silicone oil obtained by reaction in step S1 and tetramethyl butanediamine are 1 in molar ratio: 1.2 Put it into the reaction bottle, add the solvent ethylene glycol monobutyl ether, directly add the formic acid catalyst, raise the temperature to 80°C, and react for 8 hours to obtain the target product shown in formula B.

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Abstract

The invention discloses a preparation method of a hydrophilic softener for cotton fabric. The preparation method mainly comprises the following steps: a step S1, preparation of silicone oil containing epoxide groups, epoxy double ends and an organosilicon monomer are added into a reaction bottle, tetramethyl ammonium hydroxide is added, reaction temperature is controlled at 90-110 DEG C, a reaction is carried out for 6-8 hours, in order to silicone oil containing epoxide groups as shown in formula A; a step S2, preparation of target products: silicone oil containing epoxide groups obtained in the step S1 and a tertiary amine compound are added into a reaction bottle according to a mol ratio 1:(1-1.5), a solvent is added with uniform stirring, a catalyst is added, temperature is heated to 80-110 DEG C, the reaction is carried out for 4-8 hours in order to obtain a target product. The prepared cotton fabric has high softness and certain hydrophilicty, and the purpose for improving water absorption of cotton fabric is realized. In addition, quaternary ammonium salt is not easy to oxidize and has the advantage of low yellowing, because quaternary ammonium salt does not have reactive hydrogen and nitrogen atoms have positive charges.

Description

technical field [0001] The invention relates to the technical field of cotton fabric treatment agents, in particular to a preparation method of a cotton fabric hydrophilic softener. Background technique [0002] Silicone softener is a kind of softener with wide application, good performance and the most outstanding effect in textile. Because silicone has outstanding advantages such as lubricity, softness, hydrophobicity, film-forming property, etc., and the synthesis of this kind of material is non-toxic, no environmental pollution, and low cost, it has been widely used in various industries. [0003] Silicone softeners mainly include dimethyl silicone oil emulsion and hydroxy silicone oil emulsion, but it is found that the modified silicone with amino group, carboxyl group, epoxy group, polyether group, etc. can be given a special effect on the treatment of cotton fabrics. Properties such as super softness, in addition to durable rebound or drape. [0004] At present, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/388C08G77/14D06M15/643D06M101/06
CPCC08G77/14C08G77/388D06M15/643D06M2101/06D06M2200/11D06M2200/50
Inventor 吴德举徐山山尹志红
Owner 浙江固高科技股份有限公司