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Title:
OPTICAL RECORDING MEDIUM USING IMIDAZOLE DYE
Document Type and Number:
Japanese Patent JPH07137454
Kind Code:
A
Abstract:

PURPOSE: To enhance optical recording characteristics and storage stability by forming at least one kind of an imidazole dye represented by a specific formula on a substrate as a recording layer.

CONSTITUTION: In a heat mode optical recording medium capable of recording and reproducing data using laser beam, an imidazole dye represented by general formula wherein X is a phenyl group having at least one group selected from an alkylsulfoneamide group, an arylsulfoneamide group and a hydroxy group at an ortho-position, R1 and R3 are an alkyl group, R2 is a hydrogen atom, an alkyl group or a halogen atom and Z is an aryl group having a substituent selected from a hydroxyl group, an alkylamino group and an alkoxy group at a para-position or a heterocyclic group) is formed on a substrate and at least one light stabilizer is added to the recording layer.


Inventors:
NAGASAWA HIROKO
NINOMIYA HIDETAKA
Application Number:
JP1993000290913
Publication Date:
May 30, 1995
Filing Date:
November 19, 1993
Export Citation:
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Assignee:
KONISHIROKU PHOTO IND
International Classes:
B41M5/26; C07D233/54; C09B55/00; C09B57/00; G11B7/24; G11B7/244; (IPC1-7): B41M5/26; C07D233/54; C09B55/00; C09B57/00; G11B7/24