EP 0534906 A1 19930331 - Sizing process.
Title (en)
Sizing process.
Title (de)
Verfahren zum Leimen von Papier.
Title (fr)
Procédé d'encollage du papier.
Publication
Application
Priority
GB 9120564 A 19910927
Abstract (en)
A method of sizing cellulosic fibres materials for the formation of sheet products, e.g. paper, is carried out at a pH of 6-10 using a sizing agent and a cationic material, which is a powdered aluminium compound (preferably the hydroxide) on whose surface is a substance which is cationic at pH 6-10. The invention allows the use of rosin-based sizes at neutral-alkaline pHs and results in a paper with better aging and ink acceptance properties.
IPC 1-7
IPC 8 full level
D21H 21/14 (2006.01); D21H 17/45 (2006.01); D21H 17/55 (2006.01); D21H 17/67 (2006.01); D21H 17/69 (2006.01); D21H 27/00 (2006.01)
CPC (source: EP)
D21H 17/455 (2013.01); D21H 17/55 (2013.01); D21H 17/675 (2013.01); D21H 17/69 (2013.01)
Citation (search report)
[A] ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY,vol.52,nØ4,Oct 1981,page 468,abstract nØ4276,Appleton,Wisconsin,USA &JP-A-56026959(SHOWA)16-03-1981
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL PT SE
DOCDB simple family (publication)
EP 0534906 A1 19930331; AU 2539492 A 19930401; BR 9203767 A 19930420; CA 2079074 A1 19930328; FI 924325 A0 19920925; FI 924325 A 19930328; GB 9120564 D0 19911106; JP H05222694 A 19930831; MX 9205456 A 19930301; ZA 927395 B 19940325
DOCDB simple family (application)
EP 92810722 A 19920922; AU 2539492 A 19920925; BR 9203767 A 19920925; CA 2079074 A 19920924; FI 924325 A 19920925; GB 9120564 A 19910927; JP 25672392 A 19920925; MX 9205456 A 19920925; ZA 927395 A 19920925