Multi-sheet assembly using autogenous coating
AssigneeWallace Computer Services, Inc.
InventorJohn C. H. Chang
Life of this patent
Estimating the term…
Abstract
A multi-ply business form comprising a plurality of sheets in superposed relationship wherein the top sheet comprises a support bearing a localized coating comprising both microscopic pressure rupturable capsules containing a chromogenic material, and an electron acceptor material. At least one underlying sheet can comprise a support bearing a second localized autogenous coating comprising chromogen-containing microscopic pressure rupturable capsules and an electron acceptor material on its upper surface wherein the localized autogenous coatings are non-coextensive.
Claims20
A multi-ply mailer form, comprising a plurality of sheets in superposed relationship, wherein the top sheet comprises a support bearing a localized autogenous coating comprising an admixture of electron-acceptor material and chromogen-containing microscopic pressure-rupturable capsules, said localized autogenous coating being capable of reacting under the impact of a printing stylus to release said chromogen from said capsules for reaction with said electron acceptor material in said autogenous coating without transfer to provide a visible image comprising address information.
A printing system for producing printed multi-ply mailer forms consisting essentially of
- (a) a printing stylus for producing a visible image upon impact,
- (b) a multi-ply mailer form comprising a plurality of sheets in superposed relationship, wherein the top sheet comprises a support being a localized autogenous coating comprising an admixture of an electron acceptor material and microscopic pressure-rupturable capsules on its upper surface, said stylus forming a visible image upon impact with said localized autogenous coating by rupturing said capsules to release said chromogen from said capsules for reaction with said electron acceptor material in said localized autogenous coating without transfer.
A method for forming non-coextensive, visible images in a multi-ply mailer form which comprises contacting the top sheet of a multiple mailer form comprising a plurality of sheets in superposed relationship, wherein the top sheet comprises a support bearing a localized autogenous coating comprising an electron acceptor material and microscopic pressure-rupturable capsules containing a chromogenic material on its upper surface, with the printing stylus from an impact printer thereby providing a visible image in said localized, autogenous coating by rupturing said capsules to release said chromogen from said capsules for reaction with said electron acceptor material in said localized autogenous coating without transfer.
A multi-ply business form, comprising a plurality of sheets in superposed relationship, wherein
- the top sheet comprises a support bearing a localized autogenous coating comprising an admixture of electron acceptor material and chromogen-containing microscopic pressure-rupturable capsules on its upper surface,
- at least one underlying sheet comprising a support bearing a second localized autogenous coating comprising an admixture of an electron acceptor material and chromogen-containing microscopic pressure-rupturable capsules on its upper surface, said first and second localized autogenous coating being non-coextensive and do not overlap.
Dependencies are inferred from the claim text.