Photographic product containing a strippable mask

Claim 1

AN ELONGATED COMPOSITE SHEETLIKE PHOTOGRAPHIC PRODUCT COMPRISING AN ELONGATED IMAGERECEIVING LAYER FOR USE IN A PHOTOGRAPHIC TRANSFER PROCESS AS IMAGE-RECEPTIVE MATERIAL FOR RECEIVING A TRANSFER IMAGE AND HAVING AT LEAST ONE IMAGE AREA PORTION ON ONE SURFACE THEREOF ADAPTED TO RECEIVE A TRANSFER IMAGE, AN ELONGATED MASK SHEET, PROVIDED WITH AT LEAST ONE APERTURE, SUPERPOSED ON AND SECURED TO SAID SURFACE OF SAID IMAGE-RECEIVING LAYER AND OVERLYING BORDER PORTIONS OF EACH SAID IMAGE AREA PORTION, IN A POSITION TO PROVIDE THE BORDER FOR A TRANSFER PRINT FORMED ON SAID IMAGE AREA PORTION, EACH SAID APERTURE BEING SLIGHTLY SMALLER IN AREA THAN SAID IMAGE AREA PORTION AND BEING REGISTERED WITH SAID IMAGE AREA PORTION SO THAT THE EDGES OF THE APERTURE ARE POSITIONED TO LIE WITHIN THE EDGES OF SAID IMAGE AREA PORTION, AND TWO LAYERS OF ADHESIVE INTERPOSED BETWEEN SAID MASK SHEET AND SAID SURFACE OF SAID IMAGE-RECEIVING LAYERS AND BONDING SAID MASK SHEET AND SAID IMAGE-RECEIVING LAYER TOGETHER AND PROVIDING A STRIPPABLE ADHESIVE BOND, A FIRST OF SAID ADHESIVE LAYERS COVERING THE SURFACE OF SAID MASK SHEET WHICH IS CLOSEST TO SAID IMAGE-RECEIVING LAYER WHEN SAID IMAGE-RECEIVING LAYER AND SAID MASK SHEETS ARE IN SUPERPOSED RELATION, THE SECOND OF SAID LAYERS OF ADHESIVE COVERING THE SURFACE OF SAID FIRST LAYER OF ADHESIVE WHICH IS FURTHEST REMOVED FROM SAID MASK SHEET, SAID TWO LAYERS OF ADHESIVE EXTENDING SUBSTANTIALLY COEXTENSIVELY OF SAID SURFACE OF SAID MASK SHEET AND OF EACH OTHER AND SAID TWO LAYERS OF ADHESIVE HAVING A READILY CLEAVABLE LINE OF DEMARCATION THEREBETWEEN, SAID FIRST LAYER OF ADHESIVE HAVING A GREATER AFFINITY FOR SAID MASK SHEET THAN IT HAS FOR SAID SECOND LAYER OF ADHESIVE AND THE SECOND LAYER OF ADHESIVE HAVING A GREATER AFFINITY FOR SAID IMAGERECEIVING LAYER THAN IT HAS FOR SAID FIRST-NAMED ADHESIVE LAYER.