Optical recording medium

B - Operations – Transporting – 41 – M

Patent

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42/3

B41M 5/30 (2006.01) B41M 5/42 (2006.01) B41M 5/46 (2006.01) B41M 5/40 (2006.01)

Patent

CA 2001527

A novel optical recording medium is here disclosed in which an underlayer and a heat-sensitive color-developing layer are laminated in this order onto a base material, the underlayer containing a near infrared absorbent, the heat-sensitive color-developing layer containing a basic colorless dye and an organic developer. The near infrared absorbent may be a dispersible near infrared absorbent which absorbs a wave length in a near infrared region of 0.7 to 2.5 µm, and this dispersible near infrared absorbent is graphite, copper sulfide, lead sulfide, black titanium or tri-iron tetroxide. A transparent protective layer may be superposed on the heat-sensitive color-developing layer.

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