Process for the production of multicolor proofs using precolored toning films
AssigneeE. I. Du Pont de Nemours and Company
InventorHelmut H. Frohlich
Life of this patent
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AssigneeE. I. Du Pont de Nemours and Company
InventorHelmut H. Frohlich
Estimating the term…
The invention relates to a process for producing an image on a light-sensitive tonable layer comprising the steps of: (A) exposing the light-sensitive layer imagewise to produce imagewise tacky and complementary non-tacky areas; (B) bringing the imagewise-exposed layer into surface-to-surface contact with a supported non-photosensitive transfer layer containing at least one finely divided powder and/or a dissolved dye in a binder; and (C) separating the transfer layer from the light-sensitive layer, whereby the transfer layer adheres selectively to the imagewise tacky areas, the improvement wherein, the binder of the transfer layer consists essentially of (a) about 55-97 wt. % of at least one polymer in the form of a powder having a minimum film-forming temperature of above 50.degree. C., and (b) about 3-45 wt. % of at least one thermoplastic and/or one thermoplastic-elastomeric polymer, having a minimum film-forming temperature when used as a latex, or, a glass transition temperature when used as a dissolved polymer, which is at least 10.degree. C. lower than the minimum film-forming temperature of polymer (a), whereby polymer phases (a) and (b) are incompatible.
In a process for producing an image on a tonable light-sensitive layer comprising the steps of:
In a process for the production of a multi-colored image comprising the steps of:
Dependencies are inferred from the claim text.