PURPOSE: To efficiently produce a medium which has high hardness on the surface and has flexibility by superposing a transparent sheet-shaped resin layer of a photosetting type on a transparent substrate and photosetting this layer, thereby providing a hard cost layer.
CONSTITUTION: A recording layer 4 is formed on the pregroove parts 1a of the transparent substrate 1 having the pregroove parts 1a on the surface and a back substrate 5 is stuck via an adhesive layer 6 onto this recording layer 4 to obtain the information storage medium. The transparent sheet-shaped resin layer 7 of a photosetting type is then superposed on the opposite side of the pregroove parts 1a of the transparent substrate 1 and is irradiated with light 8. The sheet-shaped resin layer 7 is photoset in this way and is tightly adhered to the transparent substrate 1, by which the hard coat layer 2 is formed. The card type information storage medium having the high hardness on the surface and having the flexibility is thus obtd.
OGAWA YOSHIHIRO
JPS62141658A | 1987-06-25 | |||
JPS62129954A | 1987-06-12 | |||
JPH02185742A | 1990-07-20 | |||
JPH02162547A | 1990-06-22 |