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A new approach to the internal sizing of paper via biotechnological processes

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Garcia-Ubasart, J. A new approach to the internal sizing of paper via biotechnological processes.pdf (187,2Kb) (Restricted access)   Request copy 

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García Ubasart, Jordi
Roncero Vivero, María BlancaMés informacióMés informacióMés informació
Vidal Lluciá, TeresaMés informacióMés informacióMés informació
Document typeConference report
Defense date2011
Rights accessRestricted access - publisher's policy
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
This work deals with the study of a new biotechnological procedure, employing laccase in combination with hydrophobic compounds, for the biomodification of fibres and the internal sizing of paper. Cellulose fibres from eucalyptus kraft pulp, unbleached and TCF bleached, were incubated with laccase, in combination with a series of hydrophobes. Laccase treatments of cellulose fibres with lauryl gallate conferred the lowest level of water penetration in handsheets. It was observed that the hydrophobization of paper was not possible using the hidrophobe alone. The coupling of lauryl gallate onto cellulose fibres was firstly denoted by kappa number analysis, and further demonstrated by IR spectroscopy. The internal sizing of paper proved to be effective regardless the lignin content of eucalyptus fibres
CitationGarcia-Ubasart, J.; Roncero, M.; Vidal, T. A new approach to the internal sizing of paper via biotechnological processes. A: International Colloquium on Eucalyptus Pulp. "5th ICEP: International Colloquium on Eucalyptus Pulp: May 9-12, 2011, Arraial d'Ajuda Eco Resort and Convention Center, Porto Seguro, BA Brazil". Porto Seguro: 2011. 
URIhttp://hdl.handle.net/2117/19033
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