Title:
紙のサイジング方法
Document Type and Number:
Japanese Patent JP2004514796
Kind Code:
A
Abstract:
The invention relates to a process for the production of paper from an aqueous suspen-sion containing cellulosic fibres, and optional fillers, which comprises separately adding to the suspen-sion a cationic organic polymer having one or more aromatic groups and an anionic polymer having one or more aromatic groups, the anionic polymer being selected from step-growth polymers, polysaccharides and naturally occurring aromatic polymers and modifications thereof, forming and draining the suspension on a wire, with the proviso that if the anionic polymer is a step-growth polymer it is not an anionic melamine-sulphonic acid condensation polymer. The invention further relates to a process for the production of paper from an aqueous suspen-sion containing cellulosic fibres, and optional fillers, which comprises separately adding to the suspen-sion a cationic organic polymer having one or more aromatic groups and an anionic polymer having one or more aromatic groups, forming and draining the suspension on a wire, with the proviso that the anionic polymer is not an anionic polystyrene sulphonate or anionic melamine-sulphonic acid condensation polymer.
Inventors:
Lind Glen Eric
Florich Sten
Persson michael
Florich Sten
Persson michael
Application Number:
JP2002517894A
Publication Date:
May 20, 2004
Filing Date:
August 02, 2001
Export Citation:
Assignee:
AKZO NOBEL N.V.
International Classes:
D21H23/76; D21C3/00; D21H17/14; D21H17/17; D21H17/21; D21H17/24; D21H17/29; D21H17/42; D21H17/45; D21H17/58; D21H19/10; D21H21/10; D21H21/16; D21H17/47; (IPC1-7): D21H21/16; D21H17/14; D21H17/17; D21H17/24
Attorney, Agent or Firm:
Tetsuya Ito
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