Method of manufacturing anti-falsification paper

D - Textiles – Paper – 21 – F

Patent

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D21F 11/00 (2006.01) D21H 21/42 (2006.01)

Patent

CA 2338007

A method of manufacturing a thread-inserted, window paper in which a thread is exposed to windows intermittently formed, the resulting paper having windows of clear contours, thread being exposed surely at the window portions to make the thread clearly recognizable visually and capable of adopting a relatively simple apparatus. Wet paper (1) in which a thread (T) is embedded in the paper layer is guided while being in intimate contact with a center roll (3) having protrusions (2) arranged on the surface thereof intermittently at a predetermined distance, the surface of the wet paper on the protrusions is frictionally rubbed by a friction roll (4) thereby moving fibers at the surface of the wet paper on the protrusions to form exposed portions of the thread intermittently on the surface of the wet paper and the wet paper is then dried by a customary method.

Un procédé de fabrication une fenêtre ouvrant du papier contenu dans du fil duquel des fils sont exposés à des pièces ouvrantes de fenêtre formées par intermittance capables d'utiliser un dispositif qui a des pièces ouvrantes de fenêtre avec un profil clair auquel des fils sont exposés avec assurance de façon que les fils sont clairement visibles et qui est plutôt simple de structure, dans quoi un papier humide (1) avec des fils (T) enterrés dans une couche de papier qui est étroitement adapté et conduit à un rouleau central (3) avec des protubérances défile pendant qu'il est frotté par un rouleau passant abrasivement (4) de façon à remuer des fibres de la surface du papier humide sur les protubérances de façon à former la partie apparente sur les fils par intermittance sur la surface du papier humide, et ensuite le papier humide est séché en utilisant une méthode normale.

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