Title:
【発明の名称】紙の製造方法
Document Type and Number:
Japanese Patent JP2521651
Kind Code:
B2
Abstract:
PCT No. PCT/SE92/00416 Sec. 371 Date Jan. 3, 1994 Sec. 102(e) Date Jan. 3, 1994 PCT Filed Jun. 12, 1992 PCT Pub. No. WO93/01352 PCT Pub. Date Jan. 21, 1993.A process for improved dewatering and retention in the manufacture of paper, where a retention agent containing anionic groups and being based on a polysaccharide or being an acrylamide-based polymer and an alkaline solution of an aluminate are added to the stock containing lignocellulose-containing fibres and optionally fillers. The pH of the stock prior to the addition of the aluminate should be below about 7 to obtain the desired cationic aluminum hydroxide complexes in the stock. The present process is cost effective and insensitive to the content of calcium in the white water.
Inventors:
KARURE BURUNO
KAARUSON URUFU
KAARUSON URUFU
Application Number:
JP50217493A
Publication Date:
August 07, 1996
Filing Date:
June 12, 1992
Export Citation:
Assignee:
EKA NOBEL AB
International Classes:
D21H17/24; D21H17/37; D21H17/42; D21H17/63; D21H17/64; D21H21/10; (IPC1-7): D21H17/37; D21H17/24; D21H17/63
Attorney, Agent or Firm:
Tetsuya Ito (1 outside)