Etch inhibitors in developer for lithographic printing plates
US5998102A · kind A · utility
4Cited by
3References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Oct 6, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/322
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer composition for photosensitive elements including lithographic printing plates, color proofing films, positive and negative working lithographic plates and thermally sensitive plates giving high image contrast and reduced oxide attack to image surfaces said composition comprises: a source of hydroxyl ions sufficient to provide said developer composition to have a pH of from about 10 to about 14; an optional buffer; an etch inhibiting additive, and sufficient water to produce a developer composition. A method for forming an image also is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.