Abstract: An image-receiving element for color diffusion transfer photography for use with a photographic element containing at least one silver halide emulsion layer having incorporated therein a dye image forming material that is soluble in alkaline solution and becomes diffusible upon development of the silver halide emulsion layer with an alkaline processing solution, and to which the dye image forming material is imagewise transferred when the alkaline processing solution is spread between the image-receiving element and the photographic element; in which the image-receiving element comprises a support having at least one hydrophilic colloid layer thereon, at least one layer of the image-receiving element containing an alkaline solution-soluble hydrophilic synthetic polymer and a polymethylol compound.

Abstract: A silver halide photographic lithographic light-sensitive material having high halftone contrast comprising a support having thereon at least one hydrophilic colloid containing layer and containing at least one compound represented by the following formulae ##STR1## wherein R and R' each represents a hydrogen atom or an alkyl group containing from 1 to 18 carbon atoms, m is an integer of 1 or 2, and n is an integer of from 10 to 150, and at least one anionic surface active agent having a sulfonic group.

Abstract: A method of desensitizing comprising contacting a color developer capable of forming a color upon contact with a color former with a desensitizing composition comprising the reaction product of (a) an alkylsiloxane, an alkylsilmethylene or an alkylsilane, and (b) an alkylene oxide or an alkylene imine (wherein the alkylene imine may be a tertiary amine).

Abstract: A photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and with at least one photographic layer of the photographic light-sensitive material containing a liquid organopolysiloxane having therein at least one siloxane unit, in which (1) a methyl group and (2) an alkyl group, a cycloalkyl group, an alkoxyalkyl group, an aralkyl group, an aryloxyalkyl group or a 2,3-epoxypropyloxyalkyl group with each group having at least 5 carbon atoms are attached to the silicon atom of the siloxane unit.

Abstract: A photographic light-sensitive material comprising a support having thereon a hydrophilic colloid layer containing at least two surface active agents selected from the group consisting of compounds represented by the general formula (I) ##EQU1## and the general formula (II)R.sub.3 -- SO.sub.3 M (II)wherein R.sub.1 and R.sub.2 each represents an aliphatic residue with the sum of the number of carbon atoms contained in R.sub.1 and R.sub.2 ranging from about 8 to 32; R.sub.3 represents an aliphatic residue having about 8 to 20 carbon atoms; and M represents a cation or a cationic group capable of forming a salt with a sulfonic acid. The surface active agents have no toxic physiological action and high biodegradability.

Abstract: A multi-layer color photographic light-sensitive material providing clear and sharp color images of improved color reproduction which comprises a support having thereon at least two hydrophillic colloid layers, at least one of the hydrophillic colloid layers being a light-sensitive silver halide emulsion layer, at least one of the hydrophilic colloid layers containing a basic synthetic polymer and at least one of the hydrophillic colloid layers containing a surface active agent represented by the General Formula (II) ##EQU1## wherein D.sub.1 and D.sub.2 each represents an aliphatic group having 4 to 20 carbon atoms, and M represents a cation; or the General Formula (III).sup.+m'0.sub.3 s.sup.---(o).sub.b-1 --D.sub.3 (III)wherein D.sub.3 represents an aliphatic group having 6 to 40 carbon atoms, M' represents a cation, and b represents 1 or 2.

Abstract: A process for forming an optical sound track which comprises applying a nitrogen containing heterocyclic compound in which at least one of the nitrogen atoms is connected to a group having 6 or more carbon atoms to form a quaternary salt to a sound track area of a multilayer color photographic material, after color development but prior to a bleaching step, whereby an optical sound track can be easily prepared on a conventional multilayer color photographic material.

Abstract: An antistatic photographic sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein a surface active copolymer containing in the main chain a repeating unit represented by the formula (I) ##EQU1## wherein Y represents an organic residue having 4 to 22 carbon atoms; n represents the average number of ethyleneoxy units and is 1 to 100; and M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an ammonium group or an alkylammonium group is present in at least one of a surface of the support and a photographic layer.