Paper machine clothing with edge reinforcement

Abstract

The invention relates to a clothing for a web-processing machine, in particular a tissue machine, including a flat basic structure with an upper side and a lower side, and with a coating which is applied to the upper side and/or lower side and includes at least one polymer material. At least one polymer material is a polyurea, in particular an elastomer polyurea.

1 . A clothing for a machine which processes a web of fibrous material, the clothing comprising:
 a flat basic structure including an upper side, a lower side, and a coating applied to at least one of said upper side and said lower side, said coating including at least one polymer material wherein said polymeric material is a polyurea.   
     
     
         2 . The clothing according to  claim 1 , wherein said polyurea is an elastomer polyurea. 
     
     
         3 . The clothing according to  claim 1 , wherein said coating is applied in a plurality of areas of said basic structure only on at least one of said upper side and said lower side of said basic structure. 
     
     
         4 . The clothing according to  claim 1 , wherein said coating is applied to at least one of all of said upper side and all of said lower side of said basic structure 
     
     
         5 . The clothing according to  claim 1 , wherein said flat basic structure is a fabric. 
     
     
         6 . The clothing according to  claim 5 , wherein said fabric includes a plurality of threads in an area of said fabric in which said coating is applied, said plurality of threads in said area being covered at least partly by said coating. 
     
     
         7 . The clothing according to  claim 5 , wherein said fabric is a three-dimensionally structured fabric. 
     
     
         8 . The clothing according to  claim 7 , wherein said three-dimensionally structured fabric is a through-air dryer mesh. 
     
     
         9 . The clothing according to  claim 5 , wherein said fabric includes at least one of a plurality of polyethylene terephthalate threads, a plurality of polyamide threads, and a plurality of polyphenylene sulfide threads. 
     
     
         10 . The clothing according to  claim 1 , wherein said polyurea is present in said coating with a weight fraction of at least 10%. 
     
     
         11 . The clothing according to  claim 1 , wherein said polyurea is a two-component polyurea. 
     
     
         12 . The clothing according to  claim 1 , wherein said basic structure includes a plurality of points covered with said coating, said basic structure having been subjected, prior to said coating being applied, to a surface treatment at said plurality of points which are covered with said coating. 
     
     
         13 . The clothing according to  claim 1 , wherein said coating includes an additive configured for at least one of increasing a wear stability of said coating and reducing a coefficient of friction of said coating. 
     
     
         14 . The clothing according to  claim 13 , wherein said additive includes at least one of colloidal silicone dioxide, ultra high molecular weight polyethylene, and boronitride. 
     
     
         15 . The clothing according to  claim 13 , wherein said additive includes a plurality of particles. 
     
     
         16 . The clothing according to  claim 13 , wherein said additive includes a plurality of nanoparticles. 
     
     
         17 . The clothing according to  claim 1 , wherein said basic structure includes two longitudinal edge regions each including a longitudinal edge of said basic structure, said coating being applied in each of said longitudinal edge regions. 
     
     
         18 . The clothing according to  claim 17 , wherein said coating extends from each said longitudinal edge over approximately ⅜ inch to approximately 1 inch in a cross machine direction. 
     
     
         19 . The clothing according to  claim 1 , wherein said basic structure includes two transverse edge regions each including a transverse edge of said basic structure, each transverse edge extending in a cross machine direction of the clothing, said transverse edges being joined together and thereby rendering said basic structure endless and forming a seam region, said coating being applied in said transverse edge regions.