Photosensitive material employing microcapsules having different

Details Photosensitive material employing microcapsules having different Photosensitive material employing microcapsules having different

1984-11-20

1986-05-06

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

427221, 427222, 430394, 430502, B05D 700, G03C 146, G03C 172, G03C 500

Patent

active

045871949

ABSTRACT:
An imaging material and process employing photosensitive microcapsules useful in forming two or more image colors by exposure with an intensity or time modulated radiation source such as a laser; the imaging material comprises a support having at least two sets of photosensitive microcapsules on the surface, one set of microcapsules is made up of high speed microcapsules which are more sensitive to a predetermined actinic radiation than a second set of microcapsules made up of lower speed microcapsules; the microcapsules include a photosensitive composition which undergoes a change in viscosity upon exposure to actinic radiation; first and second image-forming agents are respectively associated with each set of microcapsules; the imaging material is useful in forming images of two or more colors by a process which comprises image-wise exposing the imaging material to actinic radiation at a first exposure amount which is substantially quantitatively different than the second exposure amount, and subjecting the exposed imaging material to a uniform rupturing force such as pressure.

REFERENCES:
patent: T882024 (1971-01-01), Feldman
patent: 3505068 (1970-04-01), Beckett et al.
patent: 3516831 (1970-06-01), Wolf et al.
patent: 3697272 (1972-10-01), Raminus
patent: 4308807 (1985-04-01), Adair
patent: 4373018 (1983-02-01), Reichmanis et al.
patent: 4489151 (1984-12-01), Sanders et al.
patent: 4501809 (1985-02-01), Hiraishi et al.

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