Packaging material

Abstract

To provide a packaging material having an opening mechanism capable of easily opening an upper face of a packaging sheet for packaging food or other items by only a one-touch operation of the upper face being pulled to counter directions, the packaging material has a packaging sheet opening mechanism 2 comprising a perforated line 3 formed at a packaging sheet 1 and a belt-shaped cover sheet 4 provided at the inside of the perforated line 3 of the packing sheet 1 so as to position the perforated line 3 approximately at a center in the longitudinal direction an one side end edge in the longitudinal direction of the belt-shaped cover sheet 4 being adhered so as not to contact it with the perforated line 3.

1 . A packaging material provided with a packaging sheet opening mechanism, comprising a perforated line formed at a packaging sheet and a belt-shaped cover sheet provided at the inside of the perforated line of the packing sheet so as to position the perforated line approximately at a center in the longitudinal direction, one side end edge in the longitudinal direction of the belt-shaped cover sheet being adhered so as not to contact it with the perforated line.  
   
   
       2 . The packaging material as claimed in  claim 1 , wherein a transparent, translucent or opaque plastic film is used as the packing sheet and the belt-shaped cover sheet.  
   
   
       3 . The packaging material as claimed in  claim 1 , wherein the belt-shaped cover sheet is adhered to the packing sheet with heat sealing, in the packing sheet opening mechanism.  
   
   
       4 . The packaging material as claimed in  claim 1 , wherein the belt-shaped cover sheet is adhered to the packing sheet with an adhesive, in the packing sheet opening mechanism.  
   
   
       5 . The packaging material as claimed in  claim 2 , wherein the belt-shaped cover sheet is adhered to the packing sheet with heat sealing, in the packing sheet opening mechanism.  
   
   
       6 . The packaging material as claimed in  claim 2 , wherein the belt-shaped cover sheet is adhered to the packing sheet with an adhesives, in the packing sheet opening mechanism.