公开(公告)号：FI820653L

公开(公告)日：1982-09-26

申请号：FI820653

申请日：1982-02-25

Applicant: BASF AG

Inventor： DEGEN HANS-JYRGEN ,  GUENDER WOLF ,  FREY GYNTER ,  STREIT WERNER ,  FIKENTSCHER ROLF ,  WULZ KLAUS

IPC: D21H19/10 ,  D21H17/07 ,  D21H17/55 ,  D21H21/28 ,  D21H

Abstract: A process for coloring paper with an acid dye and/or direct dye in an aqueous medium in the presence of a water-soluble reaction product of an alkylating agent, possessing an aromatic substituent, with a cationic polyelectrolyte. The process gives papers with high color strength and substantially avoids cylinder twosidedness of the coloration.