Abstract: A photographic element and an aqueous coating composition for providing a layer to a photographic element are disclosed. The coating composition comprises gelatin in a concentration greater than about 6% by weight, and a palladium complex having the structure: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are independently selected from hydrogen, alkyl, alkenyl, aryl or alkaryl, the alkyl, alkenyl, aryl, or alkaryl optionally being substituted with a hydroxy, sulfonate, amino or ammonium group; and wherein any two of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 can be bonded to form a ring;Z.sup.1 and Z.sup.

Abstract: Photographic materials, such as films and papers, include a support and coatings on the support. The coatings often contain hardeners which cause gelation cross links in the binder in the coating. The extent to which the cross-links have formed at the time of processing of the film or paper affects the appearance of the image produced by processing. Conventionally the cross-links have been allowed to form with time in normal atmospheric conditions. According to the invention, the formation of the cross links is accelerated to substantial completion by a process including incubating the material at a temperature above the glass transition temperature of the coating and below the melting point of the coating in an atmosphere having a relative humidity which causes a moisture content of the coating of 0.1 to 0.25 for a period of time sufficient to substantially complete the hardening, that is, the formation of the cross-links.

Abstract: A silver halide emulsion contained in a photographic element is protected against hydrogen cyanide gas, which may evolve from carbon black contained in a non-light sensitive material associated with the photographic element, by a scavenger for hydrogen cyanide gas in a location where it will intercept the hydrogen cyanide gas.

Abstract: The use of thioamido and alkynyl substituted heterocyclic ammonium salts in producing images in silver halide photographic elements is disclosed. The thioamido and alkynyl substituted heterocyclic ammonium salts can be incorporated in photographic silver halide emulsions. The thioamido substituent is capable of promoting adsorption of these salts to silver halide grain surfaces. In negative working surface latent image forming emulsions the thioamido and alkynyl substituted heterocyclic ammonium salts permit higher speeds to be achieved. In direct positive internal latent image forming emulsions nucleation activity and improved incubation stability can be achieved.

Abstract: Useful scavengers for oxidized developing agents in photographic elements are 2,4-disulfonamidophenols, or alkali labile precursors of such phenols.

Abstract: The use of thioamido and alkynyl substituted heterocyclic ammonium salts in producing images in silver halide photographic elements is disclosed. The thioamido and alkynyl substituted heterocyclic ammonium salts can be incorporated in photographic silver halide emulsions. The thioamido substituent is capable of promoting adsorption of these salts to silver halide grain surfaces. In negative working surface latent image forming emulsions the thioamido and alkynyl substituted heterocyclic ammonium salts permit higher speeds to be achieved. In direct positive internal latent image forming emulsions nucleation activity and improved incubation stability can be achieved.