An improvement in water-soluble polysaccharide films, such as pullulan
films, by inclusion of carboxymethylcellulose (CMC) in the film is
disclosed herein. The films exhibit surprisingly improved physical
properties such as tear strength, and retain good water-solubility. The
films optionally include other additives such as gelatin, plasticizers,
and surfactants. Methods of making the films include first dissolving the
polysaccharide polymer, such as pullulan, in water, heating the solution,
next admixing gelatin, then CMC, and then optional ingredients including
plasticizers and more water if desired.