The Mead Corporation

Dennis L Williams

Paul C Adair

Richard F Wright

Dale R Shackle

Jonathan S Arney

E Bryant Crutchfield

Seth O Harris

A process for improving the sensitivity of imaging materials employing an encapsulated radiation sensitive composition including a photoinitiator; wherein the imaging material is subjected to a uniform exposure which does not produce images but sequesters oxygen present in the capsules and converts it to a non-inhibiting form. An imaging material is also disclosed wherein the radiation sensitive composition additionally includes an oxygen sequestering agent.

Photosensitive material employing encapsulated radiation sensitive

A self-exposing imaging element is disclosed comprising a support member, a light sensitive layer, and a layer containing reagents which will chemically react in a chemiluminescent reaction to produce light which exposes the light sensitive layer when in contact with an original. Reagents in the light generating layer are physically or chemically segregated prior to exposure to prevent reaction, for example, by encapsulation of one of the reactants, the reaction solvent, or a catalyst. To copy the self-exposing imaging element is placed in contact with an original, the light generating layer is activated by causing the reactants to mix or introducing the reaction solvent or catalyst and the radiant energy generated produces an image of the original in the radiation sensitive layer by reflex imaging or direct transmission imaging.

Imaging element and an imaging technique

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Chillicothe, OH, United States of America

Dennis L Williams