Light-sensitive heat-sensitive composition and recording materia

Details Light-sensitive heat-sensitive composition and recording materia Light-sensitive heat-sensitive composition and recording materia

1991-03-27

1993-10-05

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430200, 430203, 430281, 430292, 430330, 430332, 430351, 430926, 430964, 503202, G03C 172

Patent

active

052503844

ABSTRACT:
A novel light-sensitive heat-sensitive composition is disclosed, comprising a photohardenable composition, a dye which discolors upon reacting with a base, and a base precursor. A novel light-sensitive heat-sensitive recording material is also disclosed, comprising a support having provided thereon the above described light-sensitive heat-sensitive composition. In a preferred embodiment, the dye is a spectral sensitizing dye for the photohardenable composition. Furthermore, a novel image formation process is disclosed, comprising the steps of: (a) imagewise exposing the light-sensitive heat-sensitive recording material to light to cure the exposed portions of the recording material; and (b) uniformly heating the imagewise exposed recording material to discolor the dye in the unexposed portions thereof. A second image formation process is disclosed, comprising the steps of: (a) imagewise heating the light-sensitive heat-sensitive recording material to discolor the dye in the heated portions of the recording material; and (b) uniformly exposing the imagewise heated recording material to light to cure the unheated portions thereof.

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patent: 4740455 (1988-04-01), Kubodera et al.
patent: 4758496 (1988-07-01), Kakimi
patent: 4760011 (1988-07-01), Kakimi

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