Process for creping tissue paper

Details Process for creping tissue paper Process for creping tissue paper

D - Textiles, Paper

21

H

D21H 27/40 (2006.01) B31F 1/12 (2006.01) C08G 73/02 (2006.01) C09J 103/08 (2006.01) D21H 17/36 (2006.01) D21H 17/55 (2006.01) D21H 21/14 (2006.01) D21H 17/29 (2006.01)

Patent

CA 2255655

A process for dry creping tissue paper comprising the application of creping adhesives in at least two steps. The adhesive applied in at least one of the steps is a polyvinyl alcohol while the adhesive applied in at least one other step comprises a water-soluble, thermosetting, cationic polyamide resin. The process provides high adhesion and doctorability for dry creping.

Cette invention se rapporte à un procédé pour le crêpage à sec de papier de soie, qui consiste à appliquer des adhésifs de crêpage en au moins deux phases. L'adhésif appliqué dans un moins l'une des phases est un alcool de polyvinyle, tandis que l'adhésif appliqué dans au moins l'une des autres phases comprend une résine de polyamide cationique, thermodurcissante et hydrosoluble. Ce procédé assure une forte adhésion et un pouvoir élevé d'étalage à la racle pour le crêpage à sec.

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