Claims
- 1. A pre-printed duplicating master for producing printed copies with or without spirit duplicating fluids comprising a foundation sheet having a predetermined pattern of imaging material reverse printed directly thereon without the use of a transfer sheet, said imaging material comprising a heat-gelled non-fused vinyl resin having a microporous structure and having dispersed within the microporous structure an ink composition comprising a dye in a solvent, said ink composition being releasable from the microporous structure of said gelled resin and transferable in said predetermined pattern to a substrate on the application of pressure while said gelled resin is retained on said foundation sheet.
- 2. A master as in claim 1 wherein said releasable ink composition contains a crystal violet or methyl violet dye.
- 3. A master as in claim 2 wherein said imaging material is present on said foundation sheet in a thickness of between 0.5 mil and 3.0 mils.
CROSS-REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part of application Ser. No. 596,597, filed July 17, 1975 now abandoned, the entire disclosure of which is incorporated by reference.
US Referenced Citations (22)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
596597 |
Jul 1975 |
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