Non-silver photosensitive article and process

Radiation imagery chemistry: process – composition – or product th – Dye image from radiation sensitive dye or dye former by dry... – Developing latent image using radiant energy or heat

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Details

430340, 430344, 430966, 430967, G03C 172

Patent

active

046998721

ABSTRACT:
A photosensitive article comprises a substrate of a triacetate or other polyester film or paper coated with a layer of a photosensitive composition. The photosensitive composition includes at least one photodissociable choline compound sensitive to x-rays or radiation of shorter wave lengths, at least one image-forming compound capable of producing a dye by reaction with the dissociation products of the choline compound, a water soluble polymeric binder and a low melting point fatty acid salt for heat development. The photosensitive article can be used to produce an x-ray image by exposing the article image-wise to x-rays and heating the exposed article to develop the image.

REFERENCES:
patent: 4394439 (1983-07-01), Robillard
patent: 4465761 (1984-08-01), Takegawa et al.
patent: 4500897 (1985-02-01), Matsuda et al.
Nath et al.: Further Studies on the Solid-State Chemistry of irradiated Choline Chloride, Journal of Chemical Physics, vol. 61, 1974, pp. 1542-1547.

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