Method for providing canvas of paper-making machine with...

D - Textiles – Paper – 21 – F

Patent

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D21F 1/32 (2006.01) D21F 1/30 (2006.01) D21F 5/00 (2006.01)

Patent

CA 2511893

A method for providing a canvas (A) for use in drying a paper material in a paper making machine with an anti-staining agent (T) through sprinkling, which comprises sprinkling the anti-staining agent (T) from a sprinkling nozzle (S) toward a portion (C) where the outer surface of the canvas (A) and an out- roll(B) start to contact with each other, to thereby attach the anti-staining agent (T) on the out-roll(B), and then transferring the anti-staining agent (T) to the canvas (A) via the out-roll(B); a sprinkling nozzle and a sliding sprinkle device for use in the method; and an anti-staining agent. The method allows a canvas of a paper making machine to be provided with a suitable amount of an anti-staining agent with reliability.

La présente invention concerne un procédé permettant d'appliquer par aspersion un agent anti-taches (T) sur la toile (A) utilisée pour sécher une matière de papier dans une machine à papier, lequel procédé consiste à asperger avec l'agent anti-taches (T) provenant d'une buse d'aspersion (S) une partie (C) où la surface extérieure de la toile (A) et un cylindre extérieur (B) entrent en contact l'un avec l'autre, de façon à attacher l'agent anti-taches (T) sur le cylindre extérieur (B) ; et à transférer ensuite l'agent anti-taches (T) sur la toile (A) via le cylindre extérieur (B). L'invention se rapporte également à une buse d'aspersion, à un dispositif d'aspersion coulissant utilisé selon le procédé de l'invention, et à un agent anti-taches. Le procédé permet d'appliquer de manière fiable sur la toile d'une machine à papier une quantité adéquate d'un agent anti-taches.

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