ANTIPERMEABLE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide an antipermeable material which does not cause peeling of a water-absorbing film but has excellent winding workability. SOLUTION: This antipermeable material 6 consists of a base material 3 and a water-absorbing film 4. The base material 3 consists of a laminated body of a plastic film 1 and a nonwoven fabric 2. The water-absorbing film 4 contains a water-absorbing resin having specified particle size (5 to 200μm). The water-absorbing film 4 is formed on the nonwoven fabric side of the base material 3. The water-absorbing film 4 is prepared as a sheet or a tape having <=500μm thickness and 60 to 170mm of bending resistance.