Patent ID: 6837275

Claim:
A papermaker's fabric comprising: a first layer and a Second layer of cross-machine direction (CD) yarns; and a plurality of machine-direction (MD) yarns arranged in groups each having a first MD yarn and two second MD yarns; wherein said first MD yarn in each group is interwoven with said CD yarns of said first and second layers in a duplex weave, said first MD yarn binding with two CD yarns of said first layer and with two CD yarns of said second layer when interweaving therewith within a repeat pattern; wherein said second MD yarns in each said group are also interwoven with said CD yarns of said first and second layers in a duplex weave, said second MD yarns 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 within said repeat pattern; and wherein said first MD yarn in each said group is between said two second MD yarns thereof, whereby a continuous air channel is formed by said first MD yarn between said second MD yarns in each said group.