A kind of low-temperature instant imidazoline quaternary ammonium salt cationic soft tablet and preparation method thereof

Abstract

The invention relates to a low-temperature instant imidazoline quaternary ammonium salt cation flexible sheet and a preparation method thereof. At present, the low-temperature instant imidazoline quaternary ammonium salt cation flexible sheet fast dissolved in water having a temperature of 40 DEG C is a creative product. The low-temperature instant imidazoline quaternary ammonium salt cation flexible sheet comprises, by weight, 67 to 72 parts of stearic acid, 7 to 10 parts of hydroxyethyl ethylenediamine, 6 to 9 parts of diethylenetriamine, 4 to 7 parts of triethylene tetramine, 4 to 5 parts of a quaternization agent, 2 to 3 parts of an emulsifier, 3 to 4 parts of glacial acetic acid and 0.5 to 0.6 parts of a defoaming agent. The preparation method comprises the following steps of weighing the raw materials, heating a reaction bottle to a temperature of 80 to 85 DEG C, putting stearic acid into the reaction bottle, putting hydroxyethyl ethylenediamine, diethylenetriamine and triethylene tetramine into the reaction bottle to obtain alkyl amidoimidazoline, dropwisely adding the quaternization agent into alkyl amidoimidazoline to obtain a quaternary ammonium salt of alkyl amidoimidazoline, putting the emulsifier, glacial acetic acid and the defoaming agent into the quaternary ammonium salt of alkyl amidoimidazoline, and carrying out slicing to obtain a finished product. The low-temperature instant imidazoline quaternary ammonium salt cation flexible sheet provided by the invention can be fast dissolved in water having a temperature of 40 DEG C.

Description

technical field [0001] The invention relates to a low-temperature instant imidazoline quaternary ammonium salt cationic softening sheet and a preparation method thereof. The cationic softening sheet is mainly used as a softening agent for printing and dyeing processing to soften fibers and fabrics. Background technique [0002] Cotton and its blended fabrics are rough after scouring, bleaching and dyeing. They must be softened to meet customer requirements. Now cationic soft sheets are widely used, but these soft sheets must be at 60-80 It can only be dissolved in hot water at ℃, the chemical time is long, there are many foams, waste of energy, and the degree of yellowing is high, the softness and smoothness are not ideal, and the biodegradability is poor. Most of them use dimethyl sulfate as a quaternizing agent, which is toxic and not environmentally friendly. Strict labor protection measures must be taken during use to prevent leakage. [0003] There are also some cation...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no low-temperature instant imidazoline quaternary ammonium salt cationic soft sheet that can be quickly dissolved in 40°C water, reduce the time of materialization, save energy, have low foam, and good biodegradability. It is suitable for soft finishing of cotton fibers and their blended fabrics. and its preparation method