Abstract: The present invention provides a silver halide photographic photosensitive material in which a silver halide photosensitive layer is disposed on a transparent polyethylene terephthalate (PET) film into which an ultraviolet light absorber has been kneaded, wherein the ultraviolet light absorber is at least one kind of ultraviolet light absorber characterized in that (i) a loss of mass is not greater than 10% when heated to 300° C. at a heating rate of 10° C./minute in a nitrogen gas atmosphere, and/or (ii) a difference between a b-value of a sheet having a thickness of 1.5 mm formed after heating for 1 minute at 300° C., a PET resin including an amount of 0.4% by mass of the ultraviolet light absorber and having a water content of not greater than 50 ppm, and a b-value of a sheet having a thickness of 1.5 mm formed after heating the PET resin for 8 minutes at 300° C., is not greater than 3.0.

Abstract: The present invention provides: a base support in which, by kneading an ultraviolet light absorber into a transparent polyester film, there is no tendency of ultraviolet absorbents to bleed out an image-forming element using the base support.

Abstract: A photographic element is disclosed, comprising a support having a gelatin undercoat, having provided thereon an acetylcellulose layer containing from 1.0 to 12.0 wt % of a polymer represented by formula (1) and from 5 to 40 wt % of a compound having at least two isocyanate groups, both based on acetylcellulose contained in the acetylcellulose layer. Also disclosed is a diffusion transfer photographic light-sensitive material comprising a photographic element comprising a support having a gelatin undercoat, having provided thereon an acetylcellulose layer containing from 2.0 to 9.0 wt % of a polymer represented by formula (1) and from 5 to 20 wt % of a compound having at least two isocyanate group, both based on acetylcellulose contained in the acetylcellulose layer.

Abstract: A photographic element comprising a support having thereon at least one layer comprising a polymer obtained by copolymerizing a repeating unit represented by the following general formula (I) and a copolymerizable cellulose derivative represented by the following general formula (II):--A).sub.x (B).sub.y (I)wherein A represents a repeating unit derived from an ethylenically unsaturated monomer having --COOH group, --SO.sub.3 H group or --PO(OH).sub.2 group in the molecular structure; and B represents a repeating unit derived from a copolymerizable ethylenically unsaturated monomer; ##STR1## wherein (R.sup.1)s each independently represents (i) a hydrogen atom, (ii) a monovalent organic bonding group such as an ester group or an ether group or (iii) a monovalent organic bonding group represented by the following general formula (III), with the proviso that (R.sup.1)s do not all hydrogen atom at the same time; and n represents a number of 20 to 800; ##STR2## wherein R.sup.

Abstract: A light-sensitive element for the silver salt diffusion transfer method is described, comprising a support bearing thereon at least a light-sensitive silver halide emulsion layer containing silver iodide, wherein at least one layer for trapping on iodide ion is provided between the support and the emulsion layer. This light-sensitive element provides a silver image which is improved in fading and discoloration during storage.

Abstract: A silver salt diffusion transfer photographic element which can provide a positive print having good stability is disclosed, comprising (1) a light-sensitive element including a light-sensitive silver halide emulsion layer containing silver iodide, and (2) an image-receiving element including a support and an image-receiving layer containing silver-depositing nuclei, with said image-receiving element having an iodide ion-capturing layer between said support and said image-receiving layer.

Abstract: A diffusion transfer photographic element composed of a photosensitive sheet, a cover sheet, and a processing composition contained in a rupturable container in such a manner that the processing composition is spread between both sheets after exposing the photosensitive sheet is disclosed. The whiteness of highlights of images obtained is improved by incorporating a graft carbon black polymer prepared by graft polymerizing a monomer to carbon black in the photographic element, in particular, in the light-shielding layer of the photosensitive sheet.The graft carbon black polymer prepared by graft polymerizing a monomer to carbon black can be uniformly dispersed in an aqueous medium and thus the photographic properties of a diffusion transfer photographic element can be improved using the graft carbon black polymer.