Fabric Belt

Abstract

A fabric belt, in particular mesh belt, for a machine for producing a fibrous web, has warp threads extending generally parallel to the belt running direction and weft threads extending generally transversely with respect to the belt running direction, are connected to each other by crossing. The weave obtained by the arrangement of the warp and weft threads relative to one another on the running side of the fabric belt in the transverse direction and considered for at least one inserted running-side weft thread in each case is produced by a combination of at least two different float lengths. In addition, a process for producing such a fabric belt is disclosed.

1 . A fabric belt for producing a fibrous web, comprising a plurality of warp threads extending generally parallel to a belt running direction and a plurality of weft threads extending generally transversely with respect to the belt running direction, the warp threads and weft threads connected to each other by crossing, wherein a weave obtained by the arrangement of the warp and weft threads relative to one another on a running side of the fabric belt in the transverse direction and for at least one inserted running-side weft thread is produced by a combination of at least two different float lengths.  
   
   
       2 . The fabric belt of  claim 1 , wherein the at least two different float lengths are defined by at least one of a different number of successively raised and successively lowered parallel warp threads in the transverse direction.  
   
   
       3 . The fabric belt of  claim 1 , wherein the different float lengths provided on the running side of the fabric belt are oriented toward the machine side.  
   
   
       4 . The fabric belt of  claim 1 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is produced only for one inserted running-side weft thread.  
   
   
       5 . The fabric belt of  claim 1 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is produced for a pair of weft threads following each other in the belt running direction.  
   
   
       6 . The fabric belt of  claim 1 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is produced for a thread arrangement formed by three threads of weft threads following each other in the belt running direction.  
   
   
       7 . The fabric belt of  claim 1 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is produced for a thread arrangement formed by four threads of weft threads following each other in the belt running direction.  
   
   
       8 . The fabric belt of  claim 1 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is produced for a thread arrangement formed by five threads of weft threads following each other in the belt running direction.  
   
   
       9 . The fabric belt of  claim 1 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is produced for more than five weft threads following each other in the belt running direction.  
   
   
       10 . The fabric belt of  claim 1 , wherein a pitch number of the running-side weft threads following each other in the belt running direction varies.  
   
   
       11 . The fabric belt of  claim 1 , wherein the float lengths on the running side of the fabric belt vary over an entire repeat.  
   
   
       12 . The fabric belt of  claim 11 , wherein the float lengths on the running side of the fabric belt vary over the entire repeat in such a way that the result in the pattern of the goods is an irregularly distributed running-side fabric diagonal.  
   
   
       13 . The fabric belt of  claim 1 , wherein the number of warp threads producing the weave and extending generally parallel to the belt running direction is greater than 26.  
   
   
       14 . The fabric belt of  claim 1 , wherein the number of warp threads producing the weave and extending generally parallel to the belt running direction is less than 26.  
   
   
       15 . The fabric belt of  claim 1 , wherein the fabric belt is a forming fabric ( 12 ).  
   
   
       16 . A process for producing a fabric belt for a machine for producing a fibrous web, comprising warp threads extending generally parallel to a belt running direction and weft threads extending generally transversely with respect to a web running direction, the warp threads and the weft threads being connected to each other by crossing, wherein a weave obtained by the arrangement of the warp and weft threads relative to one another on a running side of the fabric belt in the transverse direction and for at least one inserted running-side weft thread in each case is produced by a combination of at least two different float lengths.  
   
   
       17 . The process of  claim 16 , wherein, in order to produce the different float lengths, at least one of an appropriately different number of parallel warp threads following each other in the transverse direction are raised and an appropriately different number of parallel warp threads following each other in the transverse direction are lowered.  
   
   
       18 . The process of  claim 16 , wherein the different float lengths provided on the running side of the fabric belt are in each case oriented toward the machine side.  
   
   
       19 . The process of  claim 16 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is in each case produced only for one inserted running-side weft thread.  
   
   
       20 . The process of  claim 16 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is in each case produced for a pair of weft threads following each other in the belt running direction.  
   
   
       21 . The process of  claim 16 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is in each case produced for a trio of weft threads following each other in the belt running direction.  
   
   
       22 . The process of  claim 16 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is in each case produced for a quartet of weft threads following each other in the belt running direction.  
   
   
       23 . The process of  claim 16 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is in each case produced for a quintet of weft threads following each other in the belt running direction.  
   
   
       24 . The process of  claim 16 , wherein a respective relative arrangement of at least partly different float lengths obtained in the transverse direction on the running side of the fabric belt is in each case produced for more than five weft threads following each other in the belt running direction.  
   
   
       25 . The process of  claim 16 , wherein a pitch number of the running-side weft threads following each other in the belt running direction is varied.  
   
   
       26 . The process of  claim 16 , wherein the float lengths on a running side of the fabric belt are varied over an entire repeat.  
   
   
       27 . The process of  claim 26 , wherein the float lengths on the running side of the fabric belt are varied over the entire repeat in such a way that the result in the pattern of the goods is an irregularly distributed running-side fabric diagonal.  
   
   
       28 . The process of  claim 16 , wherein the number of warp threads producing the weave and extending generally parallel to the belt running direction is chosen to be greater than 26.  
   
   
       29 . The process of  claim 16 , wherein the number of warp threads producing the weave and extending generally parallel to the belt running direction is chosen to be less than 26.  
   
   
       30 . The process of  claim 16 , wherein the fabric belt formed is a forming fabric.