Anti-staining soaping agent for printing of activated dye and preparation method thereof

Abstract

The invention relates to an anti-staining soaping agent for printing of an activated dye and a preparation method thereof. An anti-staining soaping agent for printing of an activated dye, which is high in monomer selectivity and low in preparation cost, and a preparation method thereof are not provided at present. The soaping agent disclosed by the invention is characterized by being prepared from the following raw materials in parts by weight: 20-60 parts of fatty amine polyoxyethylene ether, 1-3 parts of alkylating agent, 0.1-2 parts of stabilizer, 30-70 parts of water and 2-10 parts of polyvinylpyrrolidone. The preparation method disclosed by the invention comprises the following steps of firstly mixing fatty amine polyoxyethylene ether, the alkylating agent, the stabilizer and the water; heating to 80-90 DEG C; distilling in vacuum at 40-50 DEG C for 1-2 hours after stirring for 3-4 hours; cooling to 40-50 DEG C; adding polyvinylpyrrolidone for mixing; heating to 60-70 DEG C, and cooling to 40-50 DEG C after stirring for an hour, so as to prepare a finished product. The anti-staining soaping agent is high in monomer selectivity, low in preparation cost, and simple in preparation technology.

Description

technical field [0001] The invention relates to a soaping agent and a preparation method thereof, in particular to an anti-staining soaping agent for reactive dye printing and a preparation method thereof. Background technique [0002] After the cotton fabric is printed with reactive dyes, it needs to be washed with a lot of water to improve the color fastness of the printed fabric and ensure the pure color of the printed fabric. However, during the washing process of printed fabrics, a large amount of reactive dyes (including hydrolyzed or unhydrolyzed reactive dyes) as well as sizing and alkali agents will enter the water from the fabrics, and these substances in the water will easily stain the printed fabrics, thereby affecting the printing quality. caused a great negative impact. In order to avoid this phenomenon, it is necessary to add a certain amount of anti-staining soaping agent in the washing process, so as to effectively clean the dirt on the printed fabric and a...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many types of anti-staining soaping agents for reactive dye printing on the market. Researchers have carried out a lot of research on this type of technology. A preparation method of a novel soaping agent for dark-colored fleece printing. The preparation method mainly synthesizes a copolymer of hydroxymethacrylic acid, maleic anhydride and N-vinylpyrrolidone, and compound it with a soaping agent to obtain a It is a printing soaping agent with excellent cleaning effect and anti-contamination performance, but the operation in the process of synthesizing the copolymer is relatively complicated, especially the control process of the molecular weight of the synthetic high polymer is complicated, and this document does not explain it; in addition, N- Although the vinylpyrrolidone monomer itself has a polymerizable double bond (vinyl group), its activity is low, and the double bond is difficult to open and polymerize, which limits the conversion rate of the monomer; and the molecular structure of this type of polymer and each group in the The position arrang...

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