WATER SOLUBLE FILM HAVING IMPROVED SOLUBILITY AND STRESS PROPERTY AND PACKAGE MANUFACTURED FROM THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a pouch containing a water soluble film having good cold water solubility even with secular changes, water resistance to wet hands and properties.SOLUTION: At least one wall of at least one sealed section is formed from a water soluble film having any suitable thickness, the water soluble film contains a water soluble polyvinyl alcohol (PVOH) resin of at least 50 wt.% and the PVOH resin has an average viscosity in a range of 13.5 to 20 cP and a hydrolysis degree in a range of 84 to 92% and the film has further a PVOH polymer having an average viscosity of less than 11 cP of 30 wt.,% or less, and film contains the PVOH polymer with dissolution index of about 620 to about 920, or about 665 to about 920, or about 710 to about 920, and stress index of about 145 to about 626, or about 155 to about 480, or about 165 to about 325 when the film has a thickness of about 76 m.