Use of highly alkaline developer regenerator composition
US7883833B2 · kind B2 · utility
0Cited by
18References
11Claims
0Family size
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Key dates
| Filing date | Jun 20, 2007 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Sep 10, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41C2210/262
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for providing a lithographic printing plate includes developing an exposed imageable element with an alkali silicate-containing developer composition having a pH of at least 12.0. The developer composition is regenerated by adding to it an alkali silicate-containing regenerator composition having a pH of at least 12.0. Conductivity of both the developer and regenerator compositions is suppressed from the presence of one or more conductivity reducing agents (such as glycerin). This conductivity suppression in the developer composition is greater than the suppression of the conductivity of the regenerator composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.