Photographic product comprising a light-sensitive diazonium compound, a coupler and a rupturable containing means holding ammonia under pressure

Claim 1

A PHOTOGRAPHIC PRODUCT CONTAINING MATERIAL, INCLUDING A PHOTOGRAPHIC REAGENT, FOR PRODUCING A DEVELOPMENT OF A VISIBLE IMAGE IN SAID PRODUCT, SAID REAGENT BEING PRESENT IN AN AMOUNT SUFFICIENT TO EFFECT SAID DEVELOPMENT, SAID PRODUCT COMPRISING A FLUID-CONFINING LAYER INCLUDING AT LEAST A PHOTOSENSITIVE PORTION COMPRISING A LIGHTSENSITIVE DIAZONIUM COMPOUND AND A COUPLER THEREFOR, SAID PHOTOSENSITIVE PORTION BEING CAPABLE OF HAVING A DEVELOPABLE IMAGE FORMED THEREIN UPON PHOTOEXPOSURE, ANOTHER FLUID-CONFINING LAYER, AND A RUPTURABLE CONTAINING MEANS HOLDING AMMONIA UNDER PRESSURE, SAID AMMONIA BEING IN AN AMOUNT SUFFICIENT FOR DEVELOPING SAID IMAGE IN SAID PHOTOSENSITIVE PORTION, SAID AMMONIA, UPON PERMEATION OF SAID PHOTOSENSITIVE PORTION, BEING EFFECTIVE TO DEVELOP SAID IMAGE, SAID LAYERS BEING SUPERPOSED WITH AID CONTAINING MEANS THEREBETWEEN, PORTIONS OF SAID LAYERS BEING SEALED TOGETHER TO PROVIDE AN ENVELOPE INCLUDING THEREWITHIN SAID CONTAINING MEANS AND SAID PHOTOSENSITIVE PORTION SO THAT RUPTURE OF SAID CONTAINING MEANS PERMITS PERMEATION OF SAID PHOTOSENSITIVE PORTION BY SAID AMMONIA, SAID ENVELOPE BEING SUFFICIENTLY GAS-TIGHT TO CONFINE SAID AMMONIA WITHIN SAID ENVELOPE AT LEAST UNTIL SAID DEVELOPMENT HAS BEEN EFFECTED.