Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Migration imaging – process – composition – or product – e.g.,...
Patent
1995-05-01
1996-10-08
Rodee, Christopher D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Migration imaging, process, composition, or product, e.g.,...
430130, G03G 1304
Patent
active
055630138
ABSTRACT:
Disclosed is a process which comprises (1) providing a migration imaging member comprising a substrate, an infrared or red light radiation sensitive layer comprising a pigment predominantly sensitive to infrared or red light radiation, and a softenable layer comprising a softenable material, a charge transport material, and migration marking material predominantly sensitive to radiation at a wavelength other than that to which the infrared or red light sensitive pigment is predominantly sensitive contained at or near the surface of the softenable layer, said infrared or red light radiation sensitive layer being situated between the substrate and the softenable layer; (2) uniformly charging the imaging member; (3) subsequent to step (2), uniformly exposing the imaging member to activating radiation at a wavelength to which the migration marking material is sensitive; (4) subsequent to step (3), neutralizing charge on the surface of the imaging member spaced from the substrate; (5) subsequent to step (4), exposing the imaging member to infrared or red light radiation at a wavelength to which the infrared or red light radiation sensitive pigment is sensitive in an imagewise pattern, thereby forming an electrostatic latent image on the imaging member, wherein step (5) takes place at least 2 hours after completion of step (4); (6) subsequent to step (5), causing the softenable material to soften, thereby enabling the migration marking material to migrate through the softenable material toward the substrate in an imagewise pattern.
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patent: 4536458 (1985-08-01), Ng
patent: 5102756 (1992-04-01), Vinett et al.
patent: 5215838 (1993-06-01), Tam et al.
Byorick Judith L.
Rodee Christopher D.
Xerox Corporation
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