Optical recording sheet

Details Optical recording sheet Optical recording sheet

G - Physics

11

B

G11B 7/24 (2006.01) B41M 5/333 (2006.01) B41M 5/26 (2006.01) B41M 5/40 (2006.01)

Patent

CA 2133625

An optical recording medium including a substrate having thereon a recording layer containing a dye precursor, a color developer reactable with the dye precursor to develop a color, and a light absorbent for converting light to heat, characterized in that the color developer is at least one compound of Formula (1): (R - NH (C=S) NH)n - Z (1) (wherein R denotes a substituted or unsubstituted alkyl, cycloalkyl, aryl, aralkyl, or alkenyl. n is an integer of 2 or more, and Z denotes a group having a valence of 2 or more.). The optical recording medium is superior in heat resistance and plasticizer resistance of the recorded image, heat resistance of background, water resistance, and moisture resistance.).

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