| 摘要 |
A film having at least two layers is disclosed, one layer being composed essentially of a water soluble/dispersible blend of polyethylene oxide (PEO) and plasticized polyvinyl chloride (PVC) and a second relatively weak layer being composed of a water insoluble polymer having high resistance to liquid and gas transmission, particularly a polymer or copolymer of vinylidene chloride (PVDC). Also disclosed is a collection pouch formed of such film. In the fabrication of such a pouch, the film panels are arranged with their PVDC layers in facing relation and the edges of such panels are then heat sealed to each other, resulting in a pouch of relatively high strength and resistance to delamination in use but capable of dissolving/dispersing quickly when discarded into the water of a flush toilet.
|
