1. 
   Face Material
   The part of the substrate (media) where printing occurs
   Found op http://www.thebarcodewarehouse.co.uk/help/glossary.xhtml
   
   
2. 
   Face Material
   Any paper, film, fabric, laminate or foil material suitable for converting into pressure sensitive label stock. In the finished construction, this web is bonded to the adhesive layer and becomes the functional part of the construction.
   Found op http://www.encyclo.co.uk/local/20829
   
   

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