Method for preparing fabric softening agent

A fabric softener, unsaturated technology, applied in the preparation of fabric softener, the preparation of diester Jimich quaternary ammonium salt fabric softener, can solve the problem of reducing softness and solubility, single diester component, poor biodegradation and other problems, to achieve excellent soft performance and antistatic performance, low ecotoxicity, and to overcome environmental pollution problems
CN102162189AInactive Publication Date: 2011-08-24HENAN TITANING CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN TITANING CHEM TECH
Publication Date
2011-08-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing fabric softening agent. The method is characterized in that: long-chain fatty alcohol and unsaturated acid undergo esterification reaction, then the esterification product and alcohol amine undergo addition reaction to form secondary amine, the secondary amine and halogenated hydrocarbon undergo substitution reaction to form tertiary amine, and the tertiary amine and a quaternization reagent are reacted to form the fabric softening agent; and the fabric softening agent has the following structure, wherein R1 is alkyl of C1 to C4 or -CH2CH(OH)CH3, R2 is straight-chain or branch-chain alkyl of C1 to C3, R3 is saturated alkyl with 12 to 22 carbon atoms, x and y are 2 to 6, and X represents negative ions combined with positive ions. The product prepared by the method is a double-ester Gemini quaternary ammonium salt softening agent; by using the Gemini structure and introducing the alcohol ethyl, the problems of poor dissolubility, strong greasy feeling and poor wetting property and air permeability of the conventional softening agent (D1821) are solved; and the softening agent has more excellent softening performance and antistatic performance compared with common ester-based quaternary ammonium salts.
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Description

technical field

[0001] The invention relates to a method for preparing a fabric softener, in particular to a method for preparing a diester Gemini quaternary ammonium salt fabric softener, and belongs to the technical field of organic compound synthesis. Background technique

[0002] Fabric softener is a daily-use chemical product that can give clothes and fabrics a soft and pleasant feeling when wearing and using them. With the development of synthetic detergents, it has gradually entered the households of ordinary people from the textile industry and has become a part of people's daily clothing. Washing care products. The main function of the fabric softener is to improve the fabric feel and prevent static electricity, and it can also give the fabric a fresh and pleasant taste. In addition, the softener can also be used in the fiber industry to increase the softness of the fabric and improve the wear resistance and tear resistance of the fabric. Crack strength.

[0003] ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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