Title:
METHODS FOR RECLAIMING DEVELOPING SOLVENTS
Document Type and Number:
WIPO Patent Application WO2006135808
Kind Code:
A9
Abstract:
The present invention relates to an improved method fro reclaiming and recycling developing solvents used in the production of flexographic printing plates. More specifically, the invention relates to reclaiming and recycling developing solvent through centrifugation and/or filtration. According to the invention, the solvent used to develop the printing plates can be reclaimed and/or recycled by simply centrifuging the polymer-contaminated solvent. Ih certain embodiment, the centrifuged solvent is further filtered. The process involves transferring the contaminated solvent, from a plate processor (22) or dirty holding tank (30), to a centrifuge (20) and/or filter (50), and centrifuging and/or filtering the contaminated solvent to remove the polymer. The reclaimed solvent can be transferred directly back to the plate processor (22) or to a clean holding tank (28).
Inventors:
HENDRICKSON CONSTANCE MARIE (US)
BRADFORD DAVID CALVIN (US)
BRADFORD DAVID CALVIN (US)
Application Number:
PCT/US2006/022621
Publication Date:
March 08, 2007
Filing Date:
June 09, 2006
Export Citation:
Assignee:
NUPRO TECHNOLOGIES INC (US)
HENDRICKSON CONSTANCE MARIE (US)
BRADFORD DAVID CALVIN (US)
HENDRICKSON CONSTANCE MARIE (US)
BRADFORD DAVID CALVIN (US)
International Classes:
G03F7/26; B01D21/26; B01D37/00; G03F7/32
Download PDF: