Thermographic material and recording method

Details Thermographic material and recording method Thermographic material and recording method

1997-05-28

1999-11-30

Angebranndt, Martin

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

503205, 503214, 430337, 430338, G03C 1498

Patent

active

059940212

ABSTRACT:
A thermographic material is disclosed which comprises a support and provided thereon, a recording layer containing a photolytic free radical generating agent capable of providing a free radical on absorption of light, a dye decolored by the free radical, and an anti-decolorizing agent, the photolytic free radical generating agent and dye being contained in a microcapsule in the recording layer, and the anti-decolorizing agent being present outside the microcapsule in the recording layer, wherein an image is formed by imagewise heating the thermographic material to mix the anti-decolorizing agent with the photolytic free radical generating agent and the dye to form a latent image, and then exposing the heated material to light which the photolytic free radical generating agent absorbs, so that the dye at the latent image portions is not decolored and the dye at portions other than the latent image portions is decolored.

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European Search Report EP 97 30 4081 with Annex.
Patent Abstracts of Japan Pub. #01129247--Abstract only.
Patent Abstracts of Japan Pub. #02190386--Abstract only.
Patent Abstracts of Japan Pub. #03001983--Abstract only.

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