EP 0697043 A1 19960221 - IMPROVEMENTS IN OR RELATING TO DEINKING OF PAPER
Title (en)
IMPROVEMENTS IN OR RELATING TO DEINKING OF PAPER
Title (de)
VERBESSERUNGEN ZU ODER IM ZUSAMMENHANG MIT DEM DE-INKEN VON PAPIER
Title (fr)
AMELIORATIONS RELATIVES AU DESENCRAGE DU PAPIER
Publication
Application
Priority
- GB 9400842 W 19940421
- GB 9308250 A 19930421
Abstract (en)
[origin: GB2277330A] The separation of laser and xerographic printed paper waste containing ink having a magnetic component from other paper waste products containing non-magnetic ink is effected by the use of at least one magnet. The invention also provides a method for removal of magnetic ink from pulp stock by feeding the stock past at least one magnet or dropping a magnet or magnetised balls into the stock. Magnetic material may be added to non-magnetic ink to enable it to be removed magnetically. Furthermore adhesive material may also be removed from paper pulp by incorporating a magnetic filler or carrier in said adhesive and removing such adhesive by magnetic means.
IPC 1-7
IPC 8 full level
B03C 1/00 (2006.01); B03C 1/01 (2006.01); B03C 1/04 (2006.01); B03C 1/26 (2006.01); C09D 11/00 (2006.01); C09D 11/02 (2006.01); C09J 5/00 (2006.01); D21B 1/08 (2006.01); D21B 1/32 (2006.01); D21C 5/02 (2006.01)
CPC (source: EP)
B03C 1/00 (2013.01); B03C 1/002 (2013.01); B03C 1/01 (2013.01); B03C 1/04 (2013.01); B03C 1/26 (2013.01); D21C 5/025 (2013.01); Y02W 30/64 (2015.05)
Citation (search report)
See references of WO 9424364A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
GB 2277330 A 19941026; GB 2277330 B 19971105; GB 9407903 D0 19940615; AU 6542094 A 19941108; BR 9406482 A 19960109; CA 2161094 A1 19941027; CN 1122151 A 19960508; EP 0697043 A1 19960221; FI 954981 A0 19951019; FI 954981 A 19951019; GB 9308250 D0 19930602; JP H08509030 A 19960924; RU 2126860 C1 19990227; WO 9424364 A1 19941027
DOCDB simple family (application)
GB 9407903 A 19940421; AU 6542094 A 19940421; BR 9406482 A 19940421; CA 2161094 A 19940421; CN 94191843 A 19940421; EP 94913168 A 19940421; FI 954981 A 19951019; GB 9308250 A 19930421; GB 9400842 W 19940421; JP 52293894 A 19940421; RU 95122629 A 19940421