Abstract: The present invention provides a photographic light-sensitive material having at least one silver halide light-sensitive layer and at least one light-insensitive layer on a support, characterized in that the light-sensitive layer and/or the light-insensitive layer contain(s) a water-soluble or water-dispersible block copolymer comprising one component of a polyvinyl alcohol polymer and the other component of an ionic group-containing polymer. The support is preferably a reflective support, and the light-sensitive layer and/or the light-insensitive layer may contain a fluorescent whitening agent. The present photographic material is processed preferably in the presence of a fluorescent whitening agent. The present material forms a print with excellent background whiteness and excellent surface gloss. The appearance is not deteriorated after preservation under high moisture conditions for a long period of time.

Abstract: A photographic light-sensitive element is described comprising a support having provided thereon at least one of a light-sensitive silver halide emulsion layer and an image-receiving layer, in which a layer comprising a light-reflective organic polymer is provided between the support and the light-sensitive silver halide layer or the image-receiving layer. The light-reflective organic polymer layer serves as a stripping layer without retarding image-formation.

Abstract: An internal latent image core/shell silver halide photographic emulsion containing core/shell silver halide grains is disclosed, the grains comprising a silver halide core which is doped with a metal ion or chemically sensitized or is both doped with a metal ion and chemically sensitized, and a silver halide shell which covers at least a sensitivity speck of the core, wherein both added iodine ion and a polymer having a specific repeating unit described in the specification are present on the surface of the core/shell silver halide grains. The emulsion has a high sensitivity even without chemical sensitization of the surface of core/shell silver halide grains.

Abstract: A silver halide photographic emulsion containing at least one sensitizing dye of the following general formula (I) and at least one sensitizing dye of general formulae (II) and/or (III), in an amount effective to achieve supersensitization: ##STR1## wherein V.sup.1 and V.sup.2, which may be the same or different, each represents a hydrogen atom, halogen atom, trifluoromethyl, cyano, carboxy, alkoxycarbonyl, aminosulfonyl or alkylsulfonyl; W.sup.1 and W.sup.2, which may be the same or different, each represents a hydrogen atom, halogen atom, alkyl, alkoxy, hydroxy, acyloxy or phenyl; R.sup.1 represents alkyl or substituted alkyl; R.sup.2 and R.sup.3, which may be the same or different, each represents alkyl or substituted alkyl, and at least one of R.sup.2 and R.sup.3 represents 1 or 0; substituted alkyl containing a carboxy or sulfo radical; R.sup.4 and R.sup.5, which may be the same or different, each has the same meanings as R.sup.1 ; X.sup.- represents an acid anion; and m represents ##STR2## wherein V.

Abstract: A silver halide emulsion for recording electron rays which comprises a silver halide emulsion containing silver halide grains having an average particle size below 0.2 microns and at least one sensitizing dye represented by the following formula: ##SPC1##Wherein Z.sub.1 represents a group of atoms necessary to form a benzene ring or naphthalene ring, said benzene or naphthalene ring being substituted or unsubstituted, Z.sub.2 represents a group of atoms necessary to form a 5-member or 6-member heterocyclic nucleus, R.sub.1, R.sub.2 and R.sub.3 each represents an alkyl group, a substituted alkyl group or an aryl group, L.sub.1, L.sub.2 and L.sub.3 each represents a methine group or a substituted methine group, said R.sub.1 and L.sub.1, R.sub.2 and L.sub.1 or R.sub.3 and L.sub.3 may be linked by an alkylene group, m and n each represents 1 or 2, X represents an acid anion, and p represents 1 or 2, is disclosed.

Abstract: Fine grain silver halide photographic emulsions adapted for electron beam recording containing at least one compound represented by the following formula; ##SPC1##Wherein A represents an aliphatic group (substituted or unsubstituted), preferably an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group or a 5- or 6-membered heterocyclic ring containing at least one nitrogen atom, R.sub.1 and R.sub.2 represent a hydrogen atom or a lower alkyl group, and n represents 0 or 1.

Abstract: Method of producing microcapsules containing hydrophobic oily liquid, which comprises, in producing microcapsules by complex coacervation, using gelatin, as at least one hydrophilic colloid, adding an aqueous solution of shock preventing agent at a temperature lower than the gelling point of gelatin in order to prevent a rise in viscosity due to reaction of gelatin and aldehyde during hardening pretreatment and rapidly accomplishing hardening pretreatment.