Fabric comprising shaped conductive monofilament used in the production of non-woven fabrics

Abstract

In an apparatus for the production of a non-woven web, structure, or article using a spun-bonding process in combination with a forming fabric which is woven having flat CMD yarns, flat MD yarns or both with some or all of such yarns being conductive so as to dissipate static electricity.

What is claimed is:  
     
         1 . An apparatus for the production of a non-woven fabric produced by way of a melt-bonding process whereby fibers are deposited upon a forming fabric to create the non-woven web, article, or structure, the improvement comprising: 
 a forming fabric for use in combination with said apparatus which is woven and includes flat CMD yarns or flat MD yarns so as to reduce a volume or air in the forming fabric and improve surface roughness of the forming fabric in comparison to that of a forming fabric woven out of all round yarns.    
     
     
         2 . The invention in accordance with  claim 1  wherein the forming fabric includes flat CMD yarns and flat MD yarns.  
     
     
         3 . The invention in accordance with  claim 1  wherein said flat CMD yarns or flat MD yarns are conductive.  
     
     
         4 . The invention in accordance with  claim 2  wherein said flat CMD yarns and flat MD yarns are conductive.  
     
     
         5 . The invention in accordance with  claim 1  wherein said flat CMD yarns or flat MD yarns include parallel sides with a width to height ratio being from 1/1 to 1/5.  
     
     
         6 . The invention in accordance with  claim 1  wherein said flat CMD yarns and flat MD yarns include parallel sides with a width to height ratio being from 1/1 to 1/5.  
     
     
         7 . The invention in accordance with  claim 1  wherein said flat CMD yarns or flat MD yarns are barrel shaped or elliptical shaped.  
     
     
         8 . The invention in accordance with  claim 1  wherein said flat CMD yarns and flat MD yarns are barrel shaped or elliptical shaped.  
     
     
         9 . A method for the production of a non-woven fabric comprising the steps of: 
 providing a melt-bonding apparatus whereby fibers are deposited upon a forming fabric to create a non-woven web, structure, or article; and    using in combination with said apparatus a forming fabric which is woven and includes flat CMD yarns or flat MD yarns.    
     
     
         10 . The method in accordance with  claim 9  wherein the forming fabric includes flat CMD yarns and flat MD yarns.  
     
     
         11 . The method in accordance with  claim 9  wherein said flat CMD yarns or flat MD yarns are conductive.  
     
     
         12 . The method in accordance with  claim 10  wherein said flat CMD yarns and flat MD yarns are conductive.