MULTI-LAYER FILM WITH PERIODIC BARRIER COATING AND METHODS OF MAKING AND USING SUCH FILM

摘要

A multi-layer, water-soluble film, a method of producing such film, a method of packaging a chemical in such film are provided. The multi-layer film comprises a continuous layer of water-soluble material suitable for forming an outer layer of a bag, and a barrier coating affixed to discrete areas of the continuous layer, leaving a plurality of uncoated intervals occurring at repeating distances on the continuous layer.