Method for manufacturing paper, cardboard and paperboard using endo-beta-1,4-glucanases as dewatering means
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United States of America Patent
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Mar 12, 2013
Grant Date -
Jul 14, 2011
app pub date -
Aug 28, 2009
filing date -
Sep 2, 2008
priority date (Note) -
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Abstract
A process for the production of paper, board and cardboard by draining a paper stock on a wire in the presence of at least one cationic polymeric retention aid and/or retention aid system with sheet formation and drying of the sheets, wherein an endo-β-1,4-glucanase is metered in an amount of from 0.00001 to 0.01% by weight, based on the dry paper stock, into the paper stock before the addition of the at least one cationic polymeric retention aid and/or retention aid system.
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