Optical disc having printable label layer

Details Optical disc having printable label layer Optical disc having printable label layer

1995-08-04

1997-04-01

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430945, 428 644, G11B 724

Patent

active

056164475

ABSTRACT:
In an optical disc, a first cover layer comprising a filler and a binder is formed on a protective coat, and a second cover layer of at least 0.1 .mu.m thick comprising at least 80% by weight of vinyl pyrrolidone polymer having Mw.gtoreq.30,000 is formed on the first cover layer. The second cover layer is printable with water-based ink. There is obtained an optical disc having a label surface which is printable with water-based ink to form characters and images which are erasable for correction.

REFERENCES:
patent: 5526031 (1996-06-01), Kurabayashi
Odian, "Principles of Polymerization" pp. 20-25 (1981).

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