Photothermographic recording material coated from an aqueous medium

Process according to any of the preceding claims, wherein said photo-addressable thermally developable element further contains a dye with maximum absorbance in the wavelength range 600 to 1100 nm.

A photothermographic recording process comprising (a) image-wise exposing a black and white photothermographic recording material to a source of actinic radiation to which said photothermographic recording material is sensitive, and (b) thermally developing said image-wise exposed photothermoraphic recording material, wherein said black and white photothermographic recording material comprises a support and a photo-addressable thermally developable element containing a photosensitive silver halide in catalytic association with a substantially light-insensitive silver salt of a fatty acid, an organic reducing agent for said substantially light-insensitive silver salt of said fatty acid in thermal working relationship therewith and a water-insoluble polymer latex binder, said photothermographic recording material being produced by the steps of:

• (I) producing an aqueous dispersion or aqueous dispersions containing said photosensitive silver halide, said substantially light-insensitive silver salt of said fatty acid, said organic reducing agent and said polymer latex binder;
• and
• (II) coating said aqueous dispersion or aqueous dispersions onto said support, wherein the medium for said aqueous dispersion or dispersions is selected from the group consisting of water and mixtures of water and water-miscible organic solvents.

A process for producing a black and white photothermographic recording material, said recording material including a support and a photo-addressable thermally developable element containing a photosensitive silver halide in catalytic association with a substantially light-insensitive silver salt of a fatty acid, an organic reducing agent for said substantially light-insensitive silver salt of said fatty acid in thermal working relationship therewith and a water-insoluble polymer latex binder containing monomer units selected from the group consisting of a diene monomer, an acrylate monomer, a styrene monomer and mixtures thereof, said process comprising the steps of:

• (i) producing an aqueous dispersion or aqueous dispersions containing said photosensitive silver halide, said substantially light-insensitive silver salt of a fatty acid, said organic reducing agent and said polymer latex binder;
• and (ii) coating said aqueous dispersion or aqueous dispersions onto a support;
• wherein the medium for said aqueous dispersion or dispersions is selected from the group consisting of water and mixtures of water and water-miscible organic solvents.