CATIONIC ANTIPYRINE BASED AZO METAL COMPLEX DYES FOR USE IN OPTICAL LAYERS FOR OPTICAL DATA RECORDING

摘要

The present invention relates to cationic antipyrine based azo metal complex dyes for use in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength from 380 to 650 nm. The invention further relates to an optical data recording medium capable of recording and reproducing information by laser beam irradiation. Particularly, it relates to a heat mode type optical data recording medium, which employs a cationic antipyrine based azo metal complex dye in the optical layer.