Package and process for producing same

Abstract

In order to obtain a package achieving a simpler structure, simpler production process, lower product cost, lower production cost, higher strength and excellent appearance, the package is produced by forming, on only one surface of a light permeable base, a first printing layer that can be observed from the other surface of the base, an anti-offset layer and a second printing layer that can be observed from the aforesaid one surface, and providing a holding means for holding an article at the side of a second surface of the base.

1 . A package comprising: 
 a backing sheet including a light permeable base, a first printing layer, an anti-offset layer and a second printing layer laminated in this order on a first surface of said base; and    a holding means for allowing said backing sheet to hold an article at the side of a second surface of said base.    
   
   
       2 . The package in accordance with  claim 1 , wherein 
 said holding means is a container bonded to said second surface with said article accommodating therein.    
   
   
       3 . The package in accordance with  claim 2 , wherein 
 said container is bonded to said second surface by heat sealing.    
   
   
       4 . The package in accordance with  claim 2  or  3 , wherein 
 at least one of said base and said container comprises a biodegradable plastic.    
   
   
       5 . The package in accordance with  claim 4 , wherein 
 said biodegradable plastic is an aliphatic polyester.    
   
   
       6 . The package in accordance with  claim 5 , wherein 
 said aliphatic polyester is a polylactic polymer.    
   
   
       7 . A method for producing a package comprising the steps of: 
 (1) successively forming, on a first surface of a light permeable base, a first printing layer, an anti-offset layer and a second printing layer by a single printing step to give a backing sheet; and    (2) allowing said backing sheet to hold an article at the side of a second surface of said base.    
   
   
       8 . The method for producing a package in accordance with  claim 7 , wherein, 
 in said step (2), a container accommodating said article is integrated with said second surface to allow said backing sheet to hold said article.    
   
   
       9 . The method for producing a package in accordance with  claim 8 , wherein said container is bonded to said second surface by heat sealing.