Sheet package

Abstract

A sheet package includes a packaging bag that accommodates a plurality of sheets that are stacked, and a retrieval opening that opens in a top surface of the packaging bag. Perforations are provided in the top surface. The perforations surround a region of a portion of the top surface, and form the retrieval opening upon the perforations being torn. A tab is provided in the region.

1 . A sheet package comprising:
 a packaging bag that accommodates a plurality of sheets, the plurality of sheets being stacked; and   a retrieval opening that opens in a top surface of the packaging bag;   wherein perforations are provided in the top surface, the perforations surrounding a region of a portion of the top surface and forming the retrieval opening upon the perforations being torn, and   wherein a tab is provided in the region.   
     
     
         2 . The sheet package as claimed in  claim 1 ,
 wherein the tab includes a bonded portion and a non-bonded portion, the bonded portion being bonded to the region, and the non-bonded portion being not bonded to the region.   
     
     
         3 . The sheet package as claimed in  claim 2 ,
 wherein, in the tab, an area ratio of the bonded portion to the non-bonded portion is 4:1 to 8:1.   
     
     
         4 . The sheet package as claimed in  claim 2 ,
 wherein a portion of the bonded portion is bonded to an outside of the region.   
     
     
         5 . The sheet package as claimed in  claim 2 , wherein an adhesive force of the bonded portion is 2 N/25 mm or greater and 6 N/25 mm or less. 
     
     
         6 . The sheet package as claimed in  claim 2 , wherein the non-bonded portion includes a free end having an arc shape. 
     
     
         7 . The sheet package as claimed in  claim 1 ,
 wherein the region has a given length extending in a first direction and a given width expanding in a second direction intersecting the first direction, and   wherein at least one end of the region in the first direction is provided with the tab.   
     
     
         8 . The sheet package as claimed in  claim 7 , wherein the width of the region narrows from both ends of the region in the first direction toward a center of the region in the first direction. 
     
     
         9 . The sheet package as claimed in  claim 7 , wherein, in the region, both edges of the region in the first direction have an arc shape that is convex to an outside of the region.