Preparation process of flame-retardant down textile material
A preparation process and technology of textile materials, which are applied in the field of down production, can solve problems such as adverse effects on human health and the environment, unsuitable use of down textiles, unsuitable use, etc., and achieve ideal flame-retardant effects, good hand feeling, and good flocking fastness. degree of effect
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[0021] A kind of preparation technology of flame-retardant down textile material, comprises the following steps:
[0022] (1) Mix diethyl phosphite and N-methylol acrylamide at a mass ratio of 1.2:1 and heat up to 50°C. After the N-methylol acrylamide is completely dissolved, add 4% methanol of the mixture Sodium, react at 50°C for 5 hours, then let it stand for precipitation, and filter out the condensed N-methylolacrylamide and sodium methoxide to obtain a flame retardant precursor solution for later use;
[0023] (2) Raise the temperature of the flame retardant precursor solution to 70°C, then add epichlorohydrin which is 4 times the mass of the flame retardant precursor solution, and keep it warm for 8 hours to obtain a flame retardant for use;
[0024] (3) Using the semi-continuous core-shell emulsion polymerization method, add the pre-emulsified core layer and the shell layer monomer successively according to the core-shell mass ratio of 3:2, control the polymerization t...
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