Process for producing substrate sheet for information recording

Details Process for producing substrate sheet for information recording Process for producing substrate sheet for information recording

1994-03-28

1996-05-14

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

264 16, 425810, B29D 1100, B29D 1700

Patent

active

055164692

ABSTRACT:
The present invention provides a process using a roll stamper which molds a substrate sheet for information recording mediums by continuously transferring preformat patterns on a resin sheet. The roll stamper has the feature that the preformat pattern on the roll stamper has a value of b/a of greater than 1 when the length of the preformat pattern in the direction parallel to the direction in which the resin sheet is transported is defined as a and the length in the direction perpendicular thereto as b.

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