Compared with oxidation, resin fini

Compared with oxidation, resin finishing has less damage to wool, which is a common shrink-proof wool processing technology at home and abroad. The wool treated with resin has good effect and is easy to operate and control. Resins used for wool shrink-resistant finishing include polysiloxane, polyacrylate, polyamide epichlorohydrin condensate, polyurethane, etc. At present, polyurethane and polyamide epichlorohydrin are widely used. Polyamide epichlorohydrin condensate is difficult to control in wool fiber treatment, and its process is relatively complex. It is usually used for continuous shrink-proof treatment of wool top surface. However, polyurethane used as shrink-proof agent to treat wool fiber has the advantages of no pollution, convenient operation, short treatment process and one step in place. Reactive groups in the molecular chain of wool fiber polyurethane anti-shrinkage finishing agent are combined through chemical bonds to form a polymer film with a cross-linked network structure, so wool has excellent anti-shrinkage effect.