Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1990-01-25
1991-08-27
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430232, 430233, 430248, 430965, G03C 554
Patent
active
050432451
ABSTRACT:
Process for the production of a laminated article including a sheet support bearing a silver image produced by the silver complex diffusion transfer process in a layer containing developement nuclei, wherein such supported image is heat-laminated with a protective thermoplastic resin layer of sheet that covers it. The heat-lamination of the nuclei-containing layer with the silver image therein takes place in the presence of at least one of certain heterocyclic black-toning agents which are effective to prevent degradation of the neutral black coloration and density loss of the silver image as a result of heat-lamination.
REFERENCES:
patent: 3160505 (1964-12-01), Willems et al.
patent: 3360368 (1967-12-01), Van Veelen et al.
patent: 3565619 (1971-02-01), Johnson
patent: 3671242 (1972-06-01), Liebe et al.
patent: 3833372 (1974-09-01), Hayashi et al.
patent: 4908286 (1990-03-01), Vervloet et al.
Dewanckele Jean-Marie O.
Kok Piet
Pauwels Robert S.
Vermeulen Leon L.
AGFA Gevaert, N.V.
Daniel William J.
Schilling Richard L.
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