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Title
Some aspects on the activation of dissolving pulps and the influence on the reactivity in a following viscose stag
Authors
LINDA OSTBERG and ULF GERMGARD
Received
May 24, 2012
Published
Volume 47 Issue 3-4 March-April
Keywords
dissolving pulp, DP, enzyme, gamma number, reactivity, viscose
Abstract
It was found that, for a dissolving pulp, an enzymatic pre-treatment with an endoglucanase prior to viscose preparation
did not change the correlation between the gamma number of the viscose dope and the carbon disulphide charge. Thus,
the pulp stoichiometry, or reactivity, was not changed by an endoglucanase pre-treatment. It has nevertheless
previously been found that the pulp reactivity, measured either by Fock’s test or as the filter clogging value (Kw),
increased for the same type of enzyme pre-treatment. Thus, the pulp reactivity seems to be influenced by the analysis
method employed.
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