Fountain solution recycling system for commercial printers
US7112282B2 · kind B2 · utility
3Cited by
40References
3Claims
0Family size
Inventors
Key dates
| Filing date | Aug 5, 2005 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/281
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sediment prefilter, a separation filter, and a post treatment filter. The sediment prefilter preferably comprises a melt blown polypropylene filter; the separation filter preferably comprises a diatomaceous earth filter; and the post treatment filter preferably comprises a zeolite filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.