WATER-SOLUBLE FILM FOR PACKAGING AGRICULTURAL CHEMICALS

摘要

A water-soluble film for packing agricultural chemicals is provided to improve efficiency of spraying the agricultural chemicals, and have high degree of strength, formability, and solubility even in cool water. A water-soluble film for packing agricultural chemicals comprises a polyvinylalcohol-based resin(A) and a resin having an acetyleneglycol-based surfactant(B) as an essential component. The 0.1-10part of acetyleneglycol-based surfactant is included in 100part of the polyvinylalcohol-based resin by weight. The viscosity of a solution of 4wt% polyvinylalcohol-based resin is 10~70 mPa.s at 20°C. Average degree of saponification of the polyvinylalcohol-based resin is 70-98mol%. The thickness of the water-soluble film for packing agricultural chemicals is 10~100 micron.