EP 0922139 A1 19990616 - PROCESS FOR ELIMINATION OF PAPER DEFECTS IN CONTINUOUS PAPER PRODUCTION
Title (en)
PROCESS FOR ELIMINATION OF PAPER DEFECTS IN CONTINUOUS PAPER PRODUCTION
Title (de)
VERFAHREN ZUR BESEITIGUNG VON PAPIERFEHLERN BEI DER KONTINUIERLICHEN PAPIERHERSTELLUNG
Title (fr)
PROCEDE POUR ELIMINER DES DEFAUTS DANS LE PAPIER LORS DE LA PRODUCTION DE PAPIER EN CONTINU
Publication
Application
Priority
- DE 19632988 A 19960815
- EP 9703859 W 19970718
Abstract (en)
[origin: WO9806897A1] A process for elimination of paper defects during continuous paper production which reduces time lost due to defect correction has the following steps: a) recognition and localization of the paper defect by means of sensors (5) directed at the running paper web (4); b) detection or calculation of the speed of the paper web (4) between the sensor (5) and a station (6) for defect correction positioned downstream from the sensor (5); c) on the basis of the speed of the paper web, calculation of the arrival time of the web segment with the paper defect at the station (6) for defect correction; d) before arrival of the web segment with the paper defect at the station (6) for defect correction, reduction of the web segment speed to a lower value than normal speed or to zero, e) automatic removal of the paper defect in station (6) for defect correction and f) restoring the web section to normal speed.
IPC 1-7
IPC 8 full level
B65H 26/02 (2006.01); B65H 37/02 (2006.01); B65H 43/04 (2006.01); D21G 9/00 (2006.01)
CPC (source: EP KR)
D21G 9/00 (2013.01 - KR); D21G 9/0009 (2013.01 - EP)
Citation (search report)
See references of WO 9806897A1
Designated contracting state (EPC)
AT BE CH DE ES FI FR GB IT LI NL PT SE
DOCDB simple family (publication)
WO 9806897 A1 19980219; AT E210762 T1 20011215; BR 9714336 A 20000411; CA 2263211 A1 19980219; CA 2263211 C 20060418; CN 1104526 C 20030402; CN 1228132 A 19990908; CZ 297849 B6 20070411; CZ 48899 A3 19990714; DE 19632988 C1 19980122; DE 59705791 D1 20020124; EP 0922139 A1 19990616; EP 0922139 B1 20011212; ES 2165084 T3 20020301; ID 17869 A 19980205; JP 2001502648 A 20010227; KR 20000029927 A 20000525; NO 313558 B1 20021021; NO 990605 D0 19990209; NO 990605 L 19990209; PL 184169 B1 20020930; PL 331586 A1 19990719; PT 922139 E 20020429; RU 2166017 C2 20010427
DOCDB simple family (application)
EP 9703859 W 19970718; AT 97937503 T 19970718; BR 9714336 A 19970718; CA 2263211 A 19970718; CN 97197256 A 19970718; CZ 48899 A 19970718; DE 19632988 A 19960815; DE 59705791 T 19970718; EP 97937503 A 19970718; ES 97937503 T 19970718; ID 972852 A 19970814; JP 50932398 A 19970718; KR 19997001143 A 19990211; NO 990605 A 19990209; PL 33158697 A 19970718; PT 97937503 T 19970718; RU 99105120 A 19970718