Photohardenable electrostatic element with improved environmental latitude

Xeroprinting process comprising (A) exposing imagewise to actinic radiation a photohardenable electrostatic master comprising (1) an electrically conductive substrate, and (2) a layer of photohardenable composition consisting essentially of (a) at least two organic polymeric binders, at least one ha...

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Bibliographic Details
Main Authors CHANG; CATHERINE T, FINCHER, JR.; CURTIS R, BLANCHET-FINCHER; GRACIELA B
Format Patent
LanguageEnglish
Published 12.11.1991
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
CINEMATOGRAPHY
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PHOTOGRAPHY
PHYSICS
PRINTED CIRCUITS
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Summary:Xeroprinting process comprising (A) exposing imagewise to actinic radiation a photohardenable electrostatic master comprising (1) an electrically conductive substrate, and (2) a layer of photohardenable composition consisting essentially of (a) at least two organic polymeric binders, at least one having a Tg greater than 80 DEG C. and at least one having a Tg less than 70 DEG C., (b) at least one monomeric compound having at least one ethylenically unsaturated group, and (c) a photoinitiator or photoinitiator system, the shift in transit time (aT) of the photohardenable layer in the range of 30%</=relative humidity</=60% and 15.6 DEG C.</=temperature </=26.7 DEG C. is 15 or less, preferably 10 or less (B) charging the photohardenable master electrostatically, (C) applying an oppositely charged electrostatic toner, and (D) transferring the toned image to a receptor surface. The xenoprinting process uses the master in graphic arts, color proofing which duplicates images produced by printing, preparation of printed circuit boards, resists, soldermasks, etc.
Bibliography:Application Number: US19900620895