| abstract |
[Issue] A PVA-based water-soluble film that has excellent mechanical strength and easy solubility in cold water, and also exhibits good solubility in aqueous liquids containing a large amount of salt components and particularly in aqueous liquids containing borate. To provide individual packaging detergents using film as packaging material. A copolymer of 0.1 to 20 mol% of a monomer having a carboxyl group and / or 0.01 to 10 mol% of a monomer having a sulfonic acid group and an aliphatic vinyl ester, Polyhydric alcohol 0.5 to 70 selected from the group consisting of fructose, sorbitol, mannitol, sorbose, catechol, pentaerythritol and mesoerythritol with respect to 100 parts by mass of polyvinyl alcohol resin having a saponification degree of 60 to 95 mol%. The water-soluble film which consists of a composition formed by mix | blending a mass part, The individual packaging detergent which used this film as a packaging material. [Selection figure] None |