Papermaker's press felt with long machine direction floats...

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 7/08 (2006.01) D21F 3/00 (2006.01)

Patent

CA 2539690

A papermaker's press felt is disclosed. A base fabric of the papermaker's press felt, comprises: a set of top machine direction (MD) yarns; a set of bottom MD yarns; and a set of cross machine direction (CMD) yarns interwoven with the top MD yarns and the bottom MD yarns. The top MD yarns, bottom MD yarns, and CMD yarns are interwoven in a series of repeat units in which each top MD yarn forms a long MD paper side float that passes above 11 consecutive ones of the set of CMD yarns. The press felt further comprises at least one batt layer attached to the base fabric. An advantage of some embodiments of the papermaker's press felt is to increase drainage and enhance conditioning of the felt while resisting collapse.

Feutre de presse de papeterie fait d'un tissu de base qui comprend les éléments suivants : un ensemble de fils supérieurs de sens machine (SM); un ensemble de fils inférieurs de SM; un ensemble de fils de sens travers (ST) entrelacés avec les fils supérieurs de SM et les fils inférieurs de SM. Les fils supérieurs de SM, les fils inférieurs de SM et les fils de ST sont entrelacés pour former une série d'unités récurrentes dans lesquelles chacun des fils SM supérieurs forme un long flotté de SM du côté papier, qui passe par dessus onze fils de ST consécutifs. En outre, le feutre de presse comprend au moins une nappe fixée au tissu de base. L'avantage de certains modes de réalisation de ce feutre de presse de papeterie est qu'ils augmentent l'égouttage et améliorent le conditionnement du feutre tout en évitant l'affaissement.

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