Fountain solution recycling system for commercial printers
US6908558B2 · kind B2 · utility
8Cited by
37References
1Claims
0Family size
Inventors
Key dates
| Filing date | Mar 19, 2003 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | May 14, 2023 |
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comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sediment prefilter, a separation filter, and a posttreatment filter.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.