Image-receiving element for diffusion transfer photographic...

G - Physics – 03 – C

Patent

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G03C 8/52 (2006.01) G03C 8/40 (2006.01)

Patent

CA 2149654

An image-receiving element for use in photograhic diffusion transfer film units of the type wherein the image-receiving element, which includes an image- receiving layer, is designed to be removed, or "peeled-apart", from a photosensitive element after exposure and development have been carried out. The image-receiving element includes an overcoat layer which overlies the image-receiving layer for reducing the time period for which the image- receiving element remains tacky after the element has been separated from the photosensitive element and for improving the handling and/or storage of the resulting photograph under high humidity conditions. The overcoat layer comprises colloidal silica particles and binder material.

L'invention concerne un élément récepteur d'images pouvant être utilisé dans les films photographiques à diffusion-transfert, du type dans lesquels l'élément récepteur d'image, qui comprend une couche de réception d'image, est prévu pour être retiré ou ''détaché'' d'un élément photosensible, une fois l'exposition et le développement terminés. L'élément récepteur d'images comprend une couche de revêtement qui recouvre la couche de réception d'image. Cette conception permet non seulement de réduire la durée pendant laquelle l'élément récepteur d'image reste collant, une fois l'élément séparé de l'élément photosensible, mais également d'améliorer la manipulation et/ou le stockage de la photographie obtenue dans des conditions de forte humidité. La couche de revêtement comprend des particules de silice colloïdales et un liant.

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