Agfa-Gevaert Ag

Bayer Aktiengesellschaft

Bernhard Morcher

Heinrich Odenwalder

Hans Vetter

Hans Hlschlager

Lothar Rosenhahn

Gunter Kolb

Friedhelm Sommer

Rolf Bruck

The invention relates to a photographic recording material comprising a layer support and, arranged thereon, at least one photosensitive silver halide emulsion layer which contains an antifogging agent corresponding to formula (I) ##STR1## in which A, R.sub.1 and R.sub.2 are as defined in the specification. The antifogging agents according to the invention reduce fogging without significantly affecting gradation and improve the staility of the photographic material in storage.

Photographic recording material

In a process for preventing the contact spots formed by contact of the back coating of photographic material with the emulsion side an aqueous polymer dispersion obtained by polymerization of halogen-free compounds and polyvinyl alcohol or partially acetylated polyvinyl alcohol in the presence of an anionic emulsifier are added to the casting composition applied as outermost back coating and/or as uppermost layer.

Method of preventing the formation of contact spots on photographic

In a process for the preparation of matted photographic layers gelatine particles which are dispersed in a water-in-oil emulsion are hardened, separated from the emulsion, redispersed in water, added to the layer which is required to be matted, and the casting composition is applied to a substrate and dried.

Process for the preparation of matted photographic layers containing

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Leverkusen, Germany

Bernhard Morcher