PURPOSE: To make it possible to inhibit the deterioration in adhesion properties and restore said properties by proper heating by comprising a soft vinyl chloride layer as one layer which constitutes a base material and demodified nylon, urethane photosensitive rubber or resin, ethylene vinyl alcohol copolymer or polyvinylidene chloride as other layers which constitute said base material.
CONSTITUTION: A base material 2 comprises at least two component layers. One layer which constitutes the base material is soft vinyl chloride while the other layer which constitutes the base material is faced with an adhesive layer. Moreover, the other layer which constitutes the base material comprises demodified nylon, photosensitive rubber or resin, ethylene vinyl alcohol copolymer or polyvinylidene chloride. Provision of such a specific middle layer makes it possible to inhibit effectively a soft vinyl chloride layer from transferring to an adhesive layer or plasticizer or a stabilizer and restore by proper heating and prevent the generation of elongation of deflection.
MINEURA YOSHIHISA
EBE KAZUYOSHI
KOGURE MASAO
