Environmentally-friendly nonionic cotton fabric finishing agent and preparation method thereof

Abstract

The invention relates to an environmentally-friendly nonionic cotton fabric finishing agent and a preparation method thereof. The preparation method comprises the following steps: preparing raw materials including a basic monomer, modified monomers and auxiliaries, wherein the basic monomer is vinyl acetate; the modified monomers include alkyl acrylate, hydroxyalkyl acrylate, vinyl glycidyl and a vinyl silane coupling agent; and the auxiliaries include a polymerization initiator, a colloid protecting agent, a nonionic emulsifier, an ionic emulsifier, a pH value regulator, higher fatty alcohol and distilled water; pre-mixing the auxiliaries to prepare reaction protecting sol; polymerizing the basic monomer and the modified monomers to prepare environmentally-friendly nonionic modified polyvinyl acetate intermediate emulsion; and carrying out delayed thermal insulation and added thermal insulation reaction to prepare the environmentally-friendly nonionic cotton fabric finishing agent. The polymerization method without seed emulsion base is adopted in the preparation method, the preparation process is simple, the side reactions are fewer and the reaction is easy to control; and the prepared product has excellent caking property and water tolerance and good heat and humidity resistance and stability, is environmentally-friendly and nonionic and is convenient to use.

Description

technical field [0001] The invention relates to a preparation method of a finishing agent, in particular to a preparation method of an environment-friendly cotton fabric finishing agent. Background technique [0002] At present, the finishing agent used for heavy-duty finishing of textiles is usually vinyl acetate homopolymer or its modified products. Polyvinyl acetate modified products are generally prepared by emulsion polymerization of vinyl acetate monomer and modified monomer under the action of an initiator. [0003] The above raw materials include basic monomers, modified monomers and auxiliary agents, wherein: the basic monomer is vinyl acetate; the modified monomers include vinyl crosslinking agents, vinyl silicone linear bodies, alkyl acrylates, vinyl Carboxylic acid, aryl carboxylate; auxiliary agent includes polymerization initiator, colloid protective agent, nonionic emulsifier, ionic emulsifier, pH regulator, distilled water. [0004] The preparation method o...

AI Technical Summary

Problems solved by technology

[0013] The polyvinyl acetate prepared by this method is nonionic and has good compatibility with other additives, but N-methylolacrylamide is still used to introduce crosslinking to the modified polyvinyl acetate, and the nonionic The emulsifier OP-10 emulsifies the polymerized monomers, so the environmental protection of the product is poor

In addition, the active silicone used in this method is a linear body containing more silicon-oxygen chain links, so the product has strong flexibility and is not suitable for the finishing and processing of textiles with a rich hand feeling.