Patent ID: 6837276
Filing Date: 2005-01-04
Classification: D21F,Y10T

Abstract:
1. A papermaker's fabric comprising: a first layer and a second layer of cross-machine direction (CD) yarns; and a system of machine-direction (MD) yarns, said MD yarns being in groups of at least two adjacent MD yarns, each said group having a first MD yarn and at least one second MD yarn; wherein said first MD yarn in each said group is interwoven with said CD yarns of said first and second layers in a duplex weave, said first MD yarn binding with only one CD yarn of said first layer and with only one CD yarn of said second layer when interweaving therewith; wherein said second MD yarn in each said group is also interwoven with said CD yarns of said first and second layers in a duplex weave, said second MD yarn binding with only one CD yarn of said first layer when interweaving therewith and floating over at least two consecutive CD yarns of said second layer when interweaving therewith; and wherein said first MD yarn in each said group is between said at least one second MD yarn thereof and a second MD yarn of an adjacent group, whereby continuous air channels are formed on a backside of the fabric by said first MD yarns between said second MD yarns.