Forming sieve for the wet end section of a paper machine

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 1/10 (2006.01) D06C 9/00 (2006.01) D06C 15/00 (2006.01) D06C 27/00 (2006.01)

Patent

CA 2566520

A sieve for the wet-end section of a paper machine is described, in which the sieve has been compressed by at least one of increased temperature, pressure and/or moisture. Such a treatment leads to a sieve which has at least one side wherein the thread floats and knuckles are reshaped and the sieve presents at least one substantially flatter surface for the production of paper. This process does not cause any physical damage to the surface of the sieve, as current techniques of abrasively polishing the surface do, and therefore leads to cloths with improved properties and lifetimes.

La présente invention concerne un tamis destiné à la partie humide d'une machine à papier, dans laquelle le tamis est comprimé par au moins une augmentation de température, de pression et/ou d'humidité. Un tel traitement permet d'obtenir un tamis présentant au moins un côté dont le filet flotte et les joints d'articulation sont reformés; le tamis présente au moins une surface essentiellement plus plate pour la production de papier. Le procédé décrit dans cette invention ne provoque aucun dommage sur la surface du tamis, comme c'est le cas pour les techniques actuelles qui consistent à polir la surface par abrasion. Ce mode de réalisation permet également d'obtenir des étoffes présentant des propriétés améliorées et des durées de vie plus longues.

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