Paper machine fabric

Abstract

The invention relates to a paper machine fabric that consists of two layers, a paper-side layer and a wear-side layer. The paper-side layer consists of the top warps (1) and at least the binding top wefts (2), which have been adjusted to form a part of the paper-side surface, and the wear-side layer consists of the bottom warps (3) and bottom wefts (4). The binding top wefts (2) have been adjusted to bind the paper-side layer and the wear-side layer together. Each binding top weft (2) is adjusted so that it forms a continuous independent yarn path.

1 . A paper machine fabric that consists of two layers, a paper-side layer and a wear-side layer, where the paper-side layer consists of the top warps ( 1 ) and at least the binding top wefts ( 2 ), which have been adjusted to form a part of the paper-side surface, and the wear-side layer consists of the bottom warps ( 3 ) and the bottom wefts ( 4 ), where the binding top wefts ( 2 ) have been adjusted to bind the paper-side layer and the wear-side layer together, characterised in that each binding top weft ( 2 ) has been adjusted to form a continuous independent yarn path. 
     
     
         2 . A paper machine fabric according to  claim 1 , where at least one top weft ( 2   a ) has also been adjusted between two adjacent binding top wefts ( 2 ), and it has been adjusted to only bind to the top warps ( 1 ), characterised in that each top weft ( 2   a ) and each binding top weft ( 2 ) has been adjusted to form a continuous independent weft path. 
     
     
         3 . A paper machine fabric according to  claim 1 , characterised in that the paper-side layer has been adjusted so that it consists of only the top warps ( 1 ) and the binding top wefts ( 2 ), where each binding top weft ( 2 ) has been adjusted to bind to the top warps ( 1 ) under two top warps and over two top warps, and each binding top weft ( 2 ) has also been adjusted to bind to each bottom warp ( 3 ) in the pattern repeat. 
     
     
         4 . A paper machine fabric according to  claim 3 , characterised in that the weave of the bottom wefts is an 8-shaft weave, meaning that the bottom wefts ( 4 ) pass over two bottom warps ( 3 ) and under six bottom warps ( 3 ). 
     
     
         5 . A paper machine fabric according to  claim 3 , characterised in that the ratio of top wefts to bottom wefts is 2:1. 
     
     
         6 . A paper machine fabric according to  claim 2 , characterised in that the paper-side layer has been adjusted so that it consists of the top warps ( 1 ), the binding top wefts ( 2 ) and the top wefts ( 2   a ), where each binding top weft ( 2 ) has been adjusted to bind to the top warps ( 1 ) under two top warps and under two top warps, and each binding top weft ( 2 ) has been adjusted so that it binds to every other bottom warp ( 3 ) in the pattern repeat, and where one top weft ( 2   a ) has been adjusted between two adjacent binding top wefts ( 2 ); it binds to the top warps ( 1 ) under one top warp and over three top warps. 
     
     
         7 . A paper machine fabric according to  claim 6 , characterised in that the wear-side weave is an 8-shaft weave, meaning that the bottom wefts ( 4 ) pass over two bottom warps ( 3 ) and under six bottom warps ( 3 ). 
     
     
         8 . A paper machine fabric according to  claim 6 , characterised in that the ratio of top wefts to bottom wefts is 2:1. 
     
     
         9 . A paper machine fabric according to  claim 2 , characterised in that the paper-side layer has been adjusted so that it consists of the top warps ( 1 ), the binding top wefts ( 2 ) and the top wefts ( 2   a ), where each binding top weft ( 2 ) has been adjusted so that it binds to the top warps ( 1 ) under two top warps and over two top warps, and each binding top weft ( 2 ) has been adjusted so that it binds to every other bottom warp ( 3 ) in the pattern repeat, and where one top weft ( 2   a ) has been adjusted between two adjacent binding top wefts ( 2 ); it has been adjusted so that it binds to the top warps ( 1 ) under one top warp ( 1 ) and over one top warp ( 1 ). 
     
     
         10 . A paper machine fabric according to  claim 9 , characterised in that the wear-side weave is an 8-shaft weave, meaning that the bottom wefts ( 4 ) pass over two bottom warps ( 3 ) and under six bottom warps ( 3 ). 
     
     
         11 . A paper machine fabric according to  claim 9 , characterised in that the ratio of top wefts to bottom wefts is 2:1. 
     
     
         12 . A paper machine fabric according to  claim 2 , characterised in that the paper-side layer has been adjusted so that it consists of the top warps ( 1 ), the binding top wefts ( 2 ) and the top wefts ( 2   a ), where each binding top weft ( 2 ) has been adjusted so that it binds to the top warps ( 1 ) under one top warp and over two top warps, and each binding top weft ( 2 ) has been adjusted so that it binds to every other bottom warp ( 3 ) in the pattern repeat, and where one top weft ( 2   a ) has been adjusted between two adjacent binding top wefts ( 2 ); it has been adjusted so that it binds to the top warps ( 1 ) under one top warp ( 1 ) and over two top warps ( 2 ). 
     
     
         13 . A paper machine fabric according to  claim 12 , characterised in that the wear-side weave is a 6-shaft weave, meaning that the bottom wefts ( 4 ) pass over two bottom warps ( 3 ) and under four bottom warps ( 3 ). 
     
     
         14 . A paper machine fabric according to  claim 12 , characterised in that the ratio of top wefts to bottom wefts is 2:1. 
     
     
         15 . A paper machine fabric according to  claim 2 , characterised in that the paper-side layer has been adjusted so that it consists of the top warps ( 1 ), the binding top wefts ( 2 ) and the top wefts ( 2   a ), where each binding top weft ( 2 ) has been adjusted so that it binds to the top warps ( 1 ) under three top warps ( 1 ) and over three top warps ( 1 ) and where one top weft ( 2   a ) has been adjusted between two adjacent binding top wefts ( 2 ); it has been adjusted so that it binds to the top warps ( 1 ) under two top warps ( 1 ) and over three top warps ( 1 ). 
     
     
         16 . A paper machine fabric according to  claim 15 , characterised in that the wear-side weave is a 6-shaft weave, meaning that the bottom wefts ( 4 ) pass over one bottom warp ( 3 ) and under five bottom warps ( 3 ). 
     
     
         17 . A paper machine fabric according to  claim 15 , characterised in that the ratio of top warps to bottom warps is 5: 3. 
     
     
         18 . A paper machine fabric according to  claim 2 , characterised in that the paper-side layer has been adjusted so that it consists of the top warps ( 1 ), the binding top wefts ( 2 ) and the top wefts ( 2   a ), where each binding top weft ( 2 ) has been adjusted so that it binds to the top warps ( 1 ) under one top warp ( 1 ) and over three top warps ( 1 ), and each binding top weft ( 2 ) has been adjusted so that it binds to every other bottom warp ( 3 ) in the pattern repeat, and where one top weft ( 2   a ) has been adjusted between two adjacent binding top wefts ( 2 ); it has been adjusted so that it binds to the top warps under one top warp ( 1 ) and over three top warps ( 1 ). 
     
     
         19 . A paper machine fabric according to  claim 1 , characterised in that the ratio of binding top wefts ( 2 ) to the top wefts ( 2   a ) is 1, >1 or <1. 
     
     
         20 . A paper machine fabric according to  claim 1 , characterised in that the ratio of top wefts to bottom wefts is 1:1, 1:2 or 2:3. 
     
     
         21 . A paper machine fabric according to  claim 1 , characterised in that the wear-side weave is between 2 and 16 shafts. 
     
     
         22 . A paper machine fabric according to  claim 1 , characterised in that the paper machine fabric is a wire used in the wet section of a paper machine. 
     
     
         23 . A paper machine fabric according to  claim 1 , characterised in that the paper-side layer consists of top warps ( 1 ) and binding top wefts ( 2   a ). 
     
     
         24 . A paper machine fabric according to  claim 1 , characterised in that in a pattern repeat, the binding top wefts ( 2 ) have been adjusted so that they bind to each bottom warp ( 3 ). 
     
     
         25 . A paper machine fabric according to  claim 1 , characterised in that the binding top wefts ( 2 ) have been adjusted so that they bind to every other bottom warp ( 3 ) in a pattern repeat. 
     
     
         26 . A paper machine fabric according to  claim 1 , characterised in that the binding top wefts ( 2 ) have been adjusted so that they bind to every third bottom warp ( 3 ) in a pattern repeat. 
     
     
         27 . A paper machine fabric according to  claim 1 , characterised in that the ratio of top warps ( 1 ) to bottom warps ( 3 ) is 1, <1 or >1.