Compound forming fabric with additional bottom yarns

Abstract

A compound forming fabric having a top weave and a bottom weave. The fabric includes binder warp/weft yarns, where the binder yarns are arranged in groups of at least two interchanging binder yarns. Each group of the binder yarns forms an integral part at least of the top weave. Per group of binder yarns the number of bottom warp/weft yarns only weaving the bottom weave is higher than the number of top warp/weft yarns only weaving the top weave.

1 . A compound forming fabric having a top weave and a bottom weave, said compound forming fabric comprising: a plurality of binder warp yarns being arranged in a plurality of groups of at least two interchanging binder yarns, wherein each of said group of interchanging binder yarns forms an integral part at least of said top weave, and wherein per group of binder yarns the number of bottom warp yarns only weaving the bottom weave is greater than the number of top warp yarns only weaving the top weave.  
   
   
       2 . The compound forming fabric of  claim 1 , wherein said number of bottom warp yarns only weaving the bottom weave is one more than said number of top warp yarns only weaving the top weave.  
   
   
       3 . The compound forming fabric of  claim 1 , wherein for said each group of said plurality of interchanging binder yarns at least one of said bottom warp yarns only weaving the bottom weave weaves over and under the same bottom weft yarns like said each group of said plurality of interchanging binder yarns.  
   
   
       4 . The compound forming fabric of  claim 1 , further including a plurality of binder weft yarns.  
   
   
       5 . The compound forming fabric of  claim 1 , wherein said each group of said plurality of interchanging binder yarns forms an integral part of the bottom weave.  
   
   
       6 . A compound forming fabric having a top weave and a bottom weave, said compound forming fabric comprising: a plurality of binder weft yarns being arranged in a plurality of groups of at least two interchanging binder yarns, wherein each group of said interchanging binder yarns forms an integral part at least of the top weave, and wherein per group of binder yarns the number of bottom weft yarns only weaving the bottom weave is greater than the number of top weft yarns only weaving the top weave.  
   
   
       7 . The compound forming fabric of  claim 6 , wherein said number of bottom weft yarns only weaving the bottom weave is one more than said number of top weft yarns only weaving the top weave.  
   
   
       8 . The compound forming fabric of  claim 6 , wherein for said each group of said plurality of interchanging binder weft yarns at least one of said bottom weft yarns only weaving the bottom weave weaves over and under the same bottom warp yarns like said each group of said plurality of interchanging binder weft yarns.  
   
   
       9 . The compound forming fabric of  claim 1  or  6 , wherein said plurality of interchanging binder yarns are arranged in pairs.  
   
   
       10 . The compound forming fabric of  claim 1  or  6 , wherein the top weave includes no top yarn weaving only the top weave and extending in the direction of said binder yarns.  
   
   
       11 . A The compound forming fabric of  claim 1  or  6 , further including a plurality of bottom yarns extending in the direction of said plurality of interchanging binder yarns, wherein the diameter of said plurality of interchanging binder yarns is less than the diameter of said plurality of bottom yarns.  
   
   
       12 . The compound forming fabric of  claim 1  or  6 , wherein said further including a repeat having at least 24 warp yarns.  
   
   
       13 . The compound forming fabric of  claim 1  or  6 , wherein for further including a repeat having at least 48 weft yarns.