Abstract: There is provided a packaging material for a photographic light-sensitive material, the packaging material being formed from a resin composition that contains a compound having an unsaturated double bond or that contains a poly(conjugated diene) component, a metal ion that can promote a catalytic oxidation reaction of the unsaturated double bond and the poly(conjugated diene), and a chelating agent that can coordinate the metal ion in an amount sufficient to suppress the catalytic oxidation reaction. There is also provided a photographic light-sensitive material package formed by housing the photographic light-sensitive material in the packaging material for the photographic light-sensitive material.

Abstract: There is provided a packaging material for a photographic light-sensitive material, the packaging material being formed from a resin composition that contains a compound having an unsaturated double bond or that contains a poly(conjugated diene) component, a metal ion that can promote a catalytic oxidation reaction of the unsaturated double bond and the poly(conjugated diene), and a chelating agent that can coordinate the metal ion in an amount sufficient to suppress the catalytic oxidation reaction. There is also provided a photographic light-sensitive material package formed by housing the photographic light-sensitive material in the packaging material for the photographic light-sensitive material.

Abstract: A pressure sensitive adhesive film having a film and a pressure sensitive adhesive composition of a polymer prepared by polymerization of acrylic or methacrylic monomer in the presence of a polymerization initiator having no cyano group and/or a polymer prepared by graft polymerization of acrylic or methacrylic monomer with an elastomer in the presence of a polymerization initiator having no cyano group is favorably employable for packaging photographic materials.

Abstract: A container for a web-shaped photosensitive material having a core on which is placed the web-shaped photosensitive material in the form of a roll, a port opening via which the web-shaped photosensitive material is taken out, and light-shielding plushes disposed at the port opening. The light-shielding plush is dyed with a colorant dye having spectral absorption (SQ value) in at least a region of spectral photosensitivity of a red-sensitive layer of the web-shaped photosensitive material. Light fog is prevented.

Abstract: A paper tube consisting essentially of one or a plurality of paper tapes formed into a tube and a blend adhesive comprising two or more aqueous adhesives different in their concentrations adhering the paper tapes, its production and a package using it. In the paper tube, the adhesive can be coated into a thin film layer even at a high concentration without reducing the initial adhesive force, and the drying process after the coating can be omitted.

Abstract: A self-processing photographic film unit has a trap member using a nonwoven cloth in order to catch surplus processing solution. This nonwoven cloth is provided with a polymer having carboxyl groups, and a hardening agent for hardening the polymer in order to prevent leakage and change of color to a frame portion of an image forming plane. A nonwoven cloth according to another embodiment includes a fiber of duplex structure which comprises an external layer of a hydrophilic cross linkage polymer and an internal layer of an acrylonitrile type polymer. A further embodiment includes a nonwoven cloth having dimensions of individual gaps or density which are changed stepwise or continuously. This nonwoven cloth is stored in the trap section so that a portion having a small density or large individual gaps is disposed on the inlet side.

Abstract: A self-processing film unit has an over sheet for covering a surface which is exposed after an image recording sheet with a positive image recorded therein has been peeled off. The over sheet is superimposed on the exposed surface after peeling-off and adheres to the exposed surface to prevent processing liquid remaining on that exposed surface from soiling the hands or clothing of the user.

Abstract: In a method of producing a composition for use in thermally developable light-sensitive photographic elements comprising mixing: a composition comprising (a) an organic silver salt and (b) a light-sensitive silver halide, and (c) a reducing agent; the improvement wherein (b) is prepared by allowing a light-sensitive silver halide-yielding component to react with (a) in the presence of (d) an imino compound.The elements so produced are also described.

Abstract: A heat developable light-sensitive material comprising a support with at least one layer thereon and containing at least (a) an organic silver salt, (b) light-sensitive silver halide or a silver halide-forming component and (c) a reducing agent with (d) an iron family compound in at least one layer on the support.

Abstract: A thermally developable light-sensitive material comprising a support having thereon or therein at least one layer containing at least (a) an organic silver salt, (b) a light-sensitive silver halide or a component capable of forming a light-sensitive silver halide, and (c) a reducing agent, which contains (d) a palladium-containing compound in at least one layer provided on or in the support.

Abstract: A heat developable light-sensitive material comprising a support having thereon at least one light-sensitive layer containing (1) an oxidation-reduction image-forming combination of (a) a silver salt oxidizing agent and (b) a reducing agent and (2) a catalytic amount of a light-sensitive silver halide or a compound capable of reacting with the silver salt (a) to form a light-sensitive silver halide, the light-sensitive layer further containing (3) at least one specific phthalazinone compound. The development of the above light-sensitive material is carried out simply by heating the material at a temperature of about 90.degree. to 180.degree. C. for 1 to 60 seconds after imagewise exposure. An image of black tone can be obtained without contaminating the developing machine.

Abstract: A heat developable light-sensitive material comprising a support having thereon or therein at least (a) an organic silver salt, (b) a light-sensitive silver halide or a light-sensitive silver halide-forming component and (c) as a reducing agent at least one ester selected from the group consisting of (1) esters of carboxylic acids derived from phenol derivatives in which at least one of the o-positions thereof is substituted, preferably substituted with a bulky group, and mono- or poly-hydric alcohols, and (2) esters of alcohols derived from polyhydric phenols in which at least one of the o-positions thereof is substituted, preferably substituted with a bulky group, and mono- or polycarboxylic acids, to reduce the thermal fog produced at the background after heat development processing, and to increase the whiteness of the unexposed areas and the stability to normal room illumination.

Abstract: A heat-developable light-sensitive material comprising a support having thereon at least one layer containing (a) an organic silver salt oxidizing agent; (b) a catalytic amount of a light-sensitive silver halide or a compound capable of forming a light-sensitive silver halide through reaction with the organic silver salt component (a); (c) a reducing agent; and (d) at least one compound represented by the following general formulae (I) to (III) ##STR1## in which A and B each represents different substituents selected from the group consisting of an amino group and a --OX group; X represents a hydrogen atom, an alkali metal atom, a silver atom, a mercury atom or a gold atom; R.sub.1 and R.sub.2 each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aralkyl group, an allyl group, an acyl group, an aryl group or an aryloxy group; and R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a halogen atom or an alkyl group.

Abstract: A heat developable light-sensitive material having reduced fog, increased whiteness, and stability to normal room illumination comprising a support having therein or in one or more layers thereon (a) an organic silver salt, (b) a light-sensitive silver halide or a component capable of forming a light-sensitive silver halide upon reaction with the organic silver salt (a), and (c) as a reducing agent an s-triazine-2,4,6-(1H, 3H, 5H)-trione substituted with a phenol derivative (having a substituted group in at least one of the o-positions thereof with respect to the hydroxyl group) in at least one of the 1-, 3- or 5-positions.

Abstract: A thermally developable photosensitive material comprising a support having thereon in one or more layers, (a) an organic silver salt, (b) a catalytic amount of a photosensitive silver halide or a compound capable of forming photosensitive silver halide, (c) a reducing agent, (d) a binder and (e) at least one compound represented by the following general formula (I), ##STR1## wherein R.sub.1 and R.sub.2 each is an alkyl group or an aralkyl group; and R.sub.3 is a hydrogen atom, an alkyl group, a chloroanilino group, a benzyloxy group, a 2-oxo-1-(N-phenylcarbamoyl)propyl group or a substituted phenyl group having one or more of a chlorine atom, an alkyl group, an amino group, an alkylamino group and a dialkylamino group as substituents; the following general formula (II), ##STR2## wherein R.sub.4 is a ##STR3## group, a ##STR4## group or a --NH(CH.sub.2).sub.n --NH-- group; and n is an integer of 1 to 5; or the following general formula (III), ##STR5## wherein R.sub.