Method of forming a protective film for an optical recording med

Details Method of forming a protective film for an optical recording med Method of forming a protective film for an optical recording med

1988-08-31

1990-06-05

Lawrence, Evan

Coating processes

Optical element produced

Transparent base

427162, 427428, 427429, B05D 500, B05D 128

Patent

active

049313134

ABSTRACT:
A method of forming a protective film for an optical recording medium. A protective film forming ink having a viscosity in a range between 0.9 and 100 ps is applied on a surface of a pad, e.g., a semispherical pad, having a Shore A hardness between 8 and 30. The spherical surface of the pad thus applied with the ink is pressed to a substrate of the optical recording medium on which a reflective layer is formed to transfer the protective film forming ink to the surface of the substrate so as to cover the entire surface of the reflective layer and extend over the peripheral edges. Then, the ink is cured to form the protective film.

REFERENCES:
patent: 4479432 (1984-10-01), Masaki et al.

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