Belt for Shoe Press

Abstract

A belt ( 10 ) for shoe press comprising a shoe side layer ( 20 ), a substrate ( 30 ) formed on the our circumference of the shoe side layer ( 20 ), and a wet paper side layer ( 60 ) formed on the outer circumference of the substrate ( 30 ). The substrate ( 30 ) consists of a lattice-like material ( 40 ) formed by bonding the intersection of a warp ( 40 A) and a weft ( 40 B), and a thread winding layer ( 50 ) formed by winding a thread ( 50 A) spirally. Bonding at the intersection of the warp ( 40 A) and the weft ( 40 B) is separated easily and friction takes place between them, but since the warp ( 40 A) is made to wear earlier than the weft ( 40 B), the weft ( 40 B) does not wear in the early stage as compared with prior art. Consequently, strength and dimensional stability of the belt for shoe press are enhanced.

1 . A shoe press belt to be disposed between press rolls and a shoe of a shoe press apparatus, comprising a base body consisting of a lattice material made by joining the crossing points of warp yarns and weft yarns and a thread layer wound in helix, a wet paper web side layer and a shoe side layer formed on a mandrel having a polished surface, characterized in that said warp yarns are so formed as to wear earlier than said weft yarns. 
     
     
         2 . A shoe press belt according to  claim 1 , wherein said warp yarns are in a form or made of a material that is more easily worn than said weft yarns. 
     
     
         3 . (canceled) 
     
     
         4 . A shoe press belt according to  claim 1 , wherein said warp yarns are thinner than said weft yarns. 
     
     
         5 . A shoe press belt according to  claim 2 , wherein said warp yarns are thinner than said weft yarns.