The times needed to conduct the process from PIC formation using polysac-charide solutions of two kinds to obtaining films were 30 min or less under appropriate conditions. Theresulting films swelled in distilled water to some degree but were not dissolved despite being made ofwater-soluble polysaccharides. Contact angle measurements supported dense surface structure of thefilms because of the effects of hot pressing. The films had sufficient mechanical properties to be used asstructural materials. Polysaccharide species and film preparation processes affected some film properties.