SURFACE TREATING AGENT FOR PEARLYLUSTRE BOPP FILM AND PREPARATION METHOD THEREFOR

摘要

Disclosed are a surface treating agent for a pearlylustre BOPP film and a preparation method therefor. The surface treating agent is prepared from the following raw materials in parts by weight: 2~4 parts of waterborne polyacrylate emulsion, 0.5~1.5 parts of waterborne anionic polyurethane dispersion, 1.2~2.5 parts of curing agent, 0.1~0.3 parts of ammonia water, 0.02~0.05 parts of wetting agent, and 6~10 parts of water. The surface treating agent forms a hard but flexible coat after cross-linking and curing on the surface of the BOPP film, and has outstanding adhesion force, water resistance and chemical resistance. By using the surface treating agent to modify the surface of the pearlylustre BOPP film, the pearlylustre of the BOPP film can be shielded, and the glossiness of the product can be reduced.