D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/24 (2006.01) D21H 23/02 (2006.01) D21H 25/00 (2006.01)
Patent
CA 2185668
According to the invention, in a conventional method for the manufacture of creped hygienic cellulose paper, in particular of tissue paper, a hemicellulose containing additive, in particular galactomannan, xylan or highly milled birch cellulose, is added to the pulp prior to the wet pulp web being deposited on the wire of the paper machine, and/or to the wet web itself. As a result of this measure, the strength of the paper web thus produced and its runnability properties are substantially improved, the softness virtually remaining unmodified. In addition, the energy requirements for drying the paper web are substantially reduced by the measures according to the invention.
Selon l'invention, on utilise le procédé classique de fabrication de papier hygiénique crêpé à base de cellulose, en particulier du papier mousseline, mais on ajoute à la pâte, avant le dépôt de la bande de pâte humide sur la toile de la machine à papier, et/ou à la bande mouillée une hémicellulose contenant un additif, en particulier du galactomannane, du xylane ou de la cellulose de bouleau très finement broyée. Grâce à cette mesure, on améliore notablement la résistance de la bande de papier ainsi produite de même que les propriétés d'aptitude au roulage de celle-ci, la douceur du papier restant virtuellement inchangée. En outre, les besoins en énergie pour sécher la bande de papier sont sensiblement réduits par suite des mesures utilisées dans l'invention.
Rehders Frank
Reinheimer Horst
Dimock Stratton Llp
The Procter & Gamble Company
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