Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1991-06-06
1992-07-21
Silverman, Stanley S.
Paper making and fiber liberation
Processes and products
Non-fiber additive
1621684, 1621685, 1621683, 1621682, 162183, D21H 2128, D21H 1745, D21H 1750, D21H 2310
Patent
active
051319810
ABSTRACT:
The wet-end coloring of paper with pigments and fixers is carried out by a process in which the pigment and fixer are added simultaneously to the paper pulp to be colored, and the fixer used is a cationic fixer, in an amount of from 0.01 to 3% by weight, based on the dry paper pulp to be colored.
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Degen Hans-Juergen
Hahn Erwin
Henning Georg
Mielke Manfred
Pfohl Sigberg
BASF - Aktiengesellschaft
Lithgow Thomas M.
Silverman Stanley S.
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