Preparation method of block silicone oil softener

Abstract

The invention relates to a preparation method of a block silicone oil softener. There are no preparation methods of block silicone oil softeners having the advantages of reliable performances, environmental protection and simple process at present. Raw materials used in the preparation method comprise, by weight, 25-35 parts of block silicone oil, 2.5-4.0 parts of isomeric fatty alcohol polyoxyethylene ether, 0.2-0.3 parts of acetate acid gracial and 60.7-72.3 parts of water. The preparation method comprises the following steps: adding the isomeric fatty alcohol polyoxyethylene ether and the block silicone oil to a reaction bottle, uniformly stirring, emulsifying for 5-10min, adding 15-20 parts of water to obtain a block silicone oil softener precursor, stirring for 10-20min, adding acetate acid gracial and residual water to the block silicone oil softener precursor, uniformly stirring, and filtering to obtain the block silicone oil softener having a pH value of 5-6. The preparation method has the advantages of simple process and easy preparation, and the prepared block silicone oil softener has the advantages of reliable performances and environmental protection.

Description

technical field [0001] The invention relates to a preparation method of a softener, in particular to a preparation method of a block silicone oil softener, which is mainly used for softening finishing of polyester fiber fabrics and blended fabrics thereof. Background technique [0002] Among textile printing and dyeing auxiliaries, softeners are a large category of finishing agents, and their main function is to meet the different feel / style requirements of various textiles. Textile softener products are mainly divided into two categories: 1. Non-silicon aliphatic type: mainly cationic type, there are also non-ionic type, anionic type and anion-like zwitterionic type. The dosage forms are: emulsion, thick paste , high-concentration soft oil essence and waxy soft flakes and soft beads, etc. 2. Silicone type: The first generation is methyl silicone oil emulsion, which emulsifies polymethyl silicone oil to form a non-ionic type. It is mainly used in yarn lubrication or smoothi...

AI Technical Summary

Problems solved by technology

2. Silicone type: The first generation is methyl silicone oil emulsion, which emulsifies polymethyl silicone oil to form a non-ionic type. It is mainly used in yarn lubrication or smoothing components of fluffing agents. However, due to the hard feel, it needs another Composite products such as softener films or soft oils; the second generation is D4 silicone oil emulsion polymerization, also known as hydroxyl emulsion, which has good smoothness, but still needs improvement in high temperature resistance, high shear resistance, and electrolyte resistance. Use If not, there will be oil spots; the third generation is D4 silicone oil (including linear body) polymerized with the coupling agent body, and then emulsified. The product is emulsion (called polyemulsion), transparent liquid (called microemulsion), mainly It is used for soft and smooth finishing of various fibers and fabrics, with good hand feeling, but during use, due to insufficient pre-treatment or washing after dyeing, especially when dyeing dark colors, with alkali or electrolyte, and many surfactants, the working fluid Decreased stability of silicone oil emulsion often leads to demulsification of this type of silicone oil emulsion, oil floating, sticking to rollers, and finally leads to silicone oil spots that are difficult to remove

The quaternary copolymerization block organosilicone oil prepared by the present invention does not cause yellowing phenomenon, has good hydrophilicity and strong emulsion stability, and can obtain a good comprehensive hand feeling when used in a small amount of textiles. However, the quaternary copolymerization block The preparation process of silicone oil is cumbersome, the reaction is complicated, and the reaction conditions are difficult to control

[0004] In summary, there is no method for the preparation of a block silicone oil softener with simple technology, easy preparation, reliable product performance, and environmental protection.