D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 1/10 (2006.01) D21F 7/08 (2006.01)
Patent
CA 2713924
A papermaking endless fabric (100) configured to support a wet paper web (75) for dewatering is provided, the fabric (100) comprising a permeable portion (275) and a pair of laterally spaced apart strip portions (250) extending along the fabric in the machine direction, each strip portion being impermeable to air and defining said permeable portion therebetween. According to the invention, the permeable portion is adapted such that the wet paper web supported thereby extends over the entire width thereof, whereby the permeable portion is configured to allow air directed thereat to flow therethrough, exclusively of the impermeable strip portions, such that the wet paper web supported only by the permeable portion is dewatered, the width of the permeable portion between the impermeable strip portions thereby defining a corresponding width of the wet paper web being dewatered. Associated systems and methods are also provided.
L'invention porte sur une toile de machine à papier en continu servant de support à la feuille humide 100) pour son égouttage. Ladite toile comporte une partie perméable (275) et une paire de bandes espacées latéralement (250) l'une de l'autre et s'étendant le long de la toile dans le sens machine, lesdites bandes étant imperméables à l'air et délimitant ladite partie perméable située entre elles. Selon l'invention, la partie perméable est conçue pour que la feuille humide qu'elle porte s'étende sur toute sa largeur, et que l'air soufflé sur elle la traverse en excluant les bandes imperméables et en n'épaississant que la partie de la feuille reposant sur la partie perméable comprise entre les bandes perméables, délimitant ainsi la largeur de la feuille à épaissir. L'invention porte également sur les systèmes et procédés associés.
Dede Stacie R.
Pilsbury Joseph R.
Albany International Corp.
Nelligan O'brien Payne Llp
LandOfFree
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