Photosensitive and thermosensitive elements,compositions and processes
Abstract
Abstract A REDUCTONE REDUCING AGENT, SUCH AS AN AMINO HEXOSE REDUCTONE OR AN ANHYDRO DIHYDRO AMINO HEXOSE REDUCTONE, AND AN ACTIVATE TONING AGENT IN A PHOTOSENSITIVE AND THERMOSENSITIVE ELEMENT SUITABLE FOR SO-CALLED DRY PROCESSING WITH HEAT PROVIDE IMPROVED BLACK TONE, INCREASED MAXIMUM DENSITY AND REDUCED BACKGROUND PRINT-OUT. SUCH AN ELEMENT WHICH CONTAINS AN OXIDATION-REDUCTION IMAGE FORMING COMBINATION IN WHICH A REDUCTONE IS EMPLOYED AS A REDUCING AGENT IS ESPECIALLY SUITABLE. THIS CAN BE AN IMAGE REPRODUCTION SHEET IN WHICH A READIATION SENSITIVE HEAVY METAL SALT CAN BE REDUCED TO FREE METAL AOD FORM THE IMAGE COMPONENTS IN AN OXIDATION-REDUCTION REACTION COMBINATION BY PRODUCING A VISIBLE COLOR CHANGE WITH AN ORGANIC SILVER SALT.
Inventors
- 👤 Mary J Youngquist
Bibliographic Details
Claims Analysis
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