EP 1500499 B1 20160120 - Method and means for measuring and controlling the concentration of chemical substances in process liquids for offset printing
Title (en)
Method and means for measuring and controlling the concentration of chemical substances in process liquids for offset printing
Title (de)
Verfahren und Vorrichtung zur Messung und Regelung der Konzentrationen von chemischen Verbindungen in Prozessflüssigkeiten beim Offsetdruck
Title (fr)
Procédé et dispositif pour mesurer et régler la concentration de produits chimiques dans la solution de mouillage pour l'impression offset
Publication
Application
Priority
DE 10333625 A 20030724
Abstract (en)
[origin: EP1500499A1] A method for maintaining the quality of an offset printing system, and ensuring minimum down time, has the concentration of the chemical, or groups of chemicals, in the process tank (2) continuously monitored (6). Any reduction in any chemical is corrected by a top up system comprising separate reservoirs (K) of chemicals and dosing pumps (7). The system is suitable both alcohol based fluid as well as non alcohol fluids.
IPC 8 full level
B41F 7/24 (2006.01); B41F 33/00 (2006.01)
CPC (source: EP US)
B41F 7/24 (2013.01 - EP US); B41F 33/0054 (2013.01 - EP US)
Citation (opposition)
Opponent : technotrans AG
- JP H04327940 A 19921117 - TOYO INK MFG CO
- DE 3428909 A1 19850523 - POLYGRAPH LEIPZIG [DD]
- DE 4324141 A1 19950316 - KRIEG GUNTHER [DE], et al
- DE 19546971 A1 19970619 - BALDWIN GEGENHEIMER GMBH [DE]
- US 4403866 A 19830913 - FALCOFF ALLAN F [US], et al
- KRIEG G.: "OFFSETDRUCK DURCH ALKOHOL-REDUKTION NOCH WIRTSCHAFTLICHER", DEUTSCHER DRUCKER, no. 33, 2 September 1999 (1999-09-02), XP000848954
- KRIEG G.: "Die richtige Antwort auf die Lenkungsabgabe: Alkoholreduktion im Offsetdruck bis unter 3,0% mit dem Mess- und Regelsystem ALCOPRINT 2000 von UNISENSOR", GRAPHIA, vol. 79, January 2000 (2000-01-01), XP055318004
- "Alkoholkonstanthalter", ALCOSMART BROSCHURE, November 1998 (1998-11-01), XP055318015
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1500499 A1 20050126; EP 1500499 B1 20160120; EP 1500499 B2 20231122; DE 10333625 A1 20050224; DE 10333625 B4 20090402; US 2005061188 A1 20050324
DOCDB simple family (application)
EP 04017479 A 20040723; DE 10333625 A 20030724; US 89538804 A 20040721