Dry image forming material and dry image forming method

G - Physics – 03 – F

Patent

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G03F 7/004 (2006.01) C09J 7/02 (2006.01) G03F 7/00 (2006.01)

Patent

CA 2287937

A full-color dry image forming material which exhibits an excellent image stability even at high temperature and high humidity and the color balance of which is not lost. The material has a single or multilayer photosensitive pressure-sensitive recording layer containing microcapsules containing in the inside phase at least a photosetting compound, a photoinitiator, and a dye precursor and a developer, a resin layer, and a self-bonding sheet on a support in order of mention from the support side. At least either the support or self-bonding sheet is transparent. A dry image forming method in which a latent image is formed by exposing the transparent side, i.e., transparent support or transparent self-bonding sheet and is pressure-developed is also disclosed.

L'invention concerne un matériau de formation d'images couleur à sec présentant une excellente stabilité des images même à haute température et à un degré d'humidité élevé tout en préservant l'équilibre chromatique. Le matériau comporte, dans l'ordre ci-après, à partir du côté support, un revêtement d'enregistrement monocouche ou multicouche sensible à la pression et photosensible contenant des microcapsules renfermant dans leur phase interne au moins un composé de photocomposition, un photoinitiateur, et un précurseur et un développeur de teinture, une couche de résine, et une feuille auto-adhésive sur un support. L'un ou l'autre du support ou de la feuille auto-adhésive est transparent. L'invention concerne également un procédé de formation d'images à sec dans lequel une image latente est formée par exposition du côté transparent, c'est-à-dire soit le support transparent soit la feuille auto-adhésive transparente, et par développement par pression.

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