High-density CD and its making process

The present invention relates to CD, especially a high-density CD and its making process. The said making process includes blow-molding to form standard film base, painting photosensitive layer, ultraviolet light exposure and development, forming black spot signal and vacuum aluminum plating. The sa...

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Bibliographic Details
Main Authors SHUITAO ZHANG, WENHUI LUO
Format Patent
LanguageEnglish
Published 26.02.2003
Edition7
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:The present invention relates to CD, especially a high-density CD and its making process. The said making process includes blow-molding to form standard film base, painting photosensitive layer, ultraviolet light exposure and development, forming black spot signal and vacuum aluminum plating. The said high-density CD has protecting layer on the film base and photosensitive layer between the protection layer and the film base. It has the advantages of sharp contrast in the signal dark spot and no-signal place, easy production of jumping signal, simple production process, low cost, etc.
Bibliography:Application Number: CN2002134607