D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 21/18 (2006.01) C12N 9/42 (2006.01) C12S 3/08 (2006.01) D21C 9/00 (2006.01) D21H 17/00 (2006.01) D21H 17/67 (2006.01) D21H 23/16 (2006.01)
Patent
CA 2187757
Disclosed is a preparation process of paper for increasing the contents of the inorganic fillers in the paper and enhancing Scott internal bond strength. Additional to a conventional preparation process of paper, as a cellulase type enzyme, an enzyme produced by Trichoderma longibrachiatum which has a carboxymethylcellulase activity of 3,600 U/ml or more is added to a pulp in an amount of 0.01 ~ 0.2 % by weight based on the weight of the wood pulp. The contents of fillers in the paper is increased and Scott internal bond strength is enhanced.
L'invention concerne un procédé de préparation de papier servant à augmenter la teneur en charges inorganiques du papier et à améliorer la cohésion interne Scott. En plus d'un procédé classique de préparation de papier, utilisant une enzyme de type cellulase, on ajoute à la pâte une enzyme produite par Trichoderma longibrachiatum possédant une activité carboxyméthylcellulase égale ou supérieure à 3600 U/ml, selon une quantité de 0,01 ? 0,2 % en poids sur la base du poids de la pâte à papier. Ceci permet d'augmenter la teneur en charges du papier et d'améliorer la cohésion interne Scott.
Han Sin Ho
Ow Steven Say-Kyoun
Shin Jong Ho
Sohn Chang Man
Korea Research Institute Of Chemical Technology
Thompson Douglas B.
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