Method for improving sensitometric response of photosensitive imaging media employing microcapsules
AssigneeHSBC Bank USA
InventorsAlexander Y. Polykarpov, Joseph C. Camillus, James A. Dowler, Julius D. King, Jr.
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Abstract
A method of improving the sensitometric response of a photosensitive imaging media under various humidity conditions including the steps of providing a photosensitive imaging media including an imaging layer comprising a developer material and a plurality of microcapsules encapsulating a photohardenable composition and a color former; image-wise exposing the imaging media to actinic radiation to form a latent image on the media; maintaining the imaging media containing the latent image at an elevated temperature; and developing the image.
Claims19
A method for improving the sensitometric response of a photosensitive imaging media under a range of humidity conditions comprising the steps of:
- providing an enclosed photosensitive imaging media including an imaging layer comprising a developer material and a plurality of microcapsules encapsulating a photohardenable composition and a color former;
- image-wise exposing the imaging media to actinic radiation to form a latent image on the media;
- maintaining the imaging media containing the latent image at an elevated temperature;
- and developing the image.
In a method of forming an image on an enclosed, self-contained photosensitive imaging media comprising an imaging layer disposed between a pair of supports wherein, said imaging layer including photosensitive microcapsules and a developer, said microcapsules including an internal phase containing a photohardenable composition and a chromogenic material wherein said method comprises image-wise exposing said photosensitive media to actinic radiation and rupturing said microcapsules, wherein said chromogenic material image-wise reacts with said developer to form a color image, the improvement wherein said method further comprises the steps of heating said photosensitive imaging media after image-wise exposing said media and prior to rupturing said microcapsules.
Dependencies are inferred from the claim text.