Photographic system

Details Photographic system Photographic system

G - Physics

03

C

G03C 5/305 (2006.01) G03C 1/295 (2006.01) G03C 8/08 (2006.01) G03C 8/36 (2006.01) G03C 8/52 (2006.01)

Patent

CA 2212884

There is described a photographic system wherein development of an exposed photosensitive element is carried out in the presence of a quaternary pyridinium compound which has a fused 5- to 12-member saturated carbocyclic ring attached to the 2 and 3 positions of the pyridine ring.

L'invention concerne un système photographique, dans lequel le développement d'un élément photosensible exposé se fait en présence d'un composé pyridinium quaternaire comprenant un cycle carbocyclique saturé à 5 -12 atomes de carbone, ce cycle étant fusionné avec le noyau pyridine par fixation aux positions 2 et 3.

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