Negative-working imaging method employing encapsulated photohard

Details Negative-working imaging method employing encapsulated photohard Negative-working imaging method employing encapsulated photohard

1987-09-01

1989-03-28

Shah, Mukund J.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

427221, 427222, 4284022, 42840221, 430200, 430235, 430394, 430502, G03C 140, G03C 100

Patent

active

048163716

ABSTRACT:
A method for forming images which comprises image-wise exposing a photosensitive material to heat while simultaneously exposing said material to non-infrared actinic radiation, said material including a support and a layer of microcapsules containing an image-forming agent and a radiation curable composition on the surface of said support; said radiation curable composition being liquid at ambient temperatures and being substantially unhardened in the areas in which said material is simultaneously exposed to said heat and radiation and being substantially hardened in the areas in which said material is not simultaneously exposed to said heat and radiation; and subjecting said microcapsules to a uniform rupturing force such that said microcapsules image-wise release said image-forming agent.

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