Packaging bag

Abstract

A packaging bag includes a first face including a first edge disposed on a first side of an opening; a second face facing the first face and including a second edge disposed on a second side of the opening; and a cushion in an expandable sheet form and being suspended between the first edge and the second edge, and in which a plurality of slits extending in a direction intersecting a suspension direction are provided in a staggered manner, wherein a percentage of a basis weight of a sheet material forming the cushion with respect to a basis weight of a sheet material forming the first face and the second face is 55 to 80%.

1 . A packaging bag comprising:
 a first face comprising a first edge disposed on a first side of an opening;   a second face facing the first face and comprising a second edge disposed on a second side of the opening; and   a cushion in an expandable sheet form and being suspended between the first edge and the second edge, and in which a plurality of slits extending in a direction intersecting a suspension direction are provided in a staggered manner, wherein   a percentage of a basis weight of a sheet material forming the cushion with respect to a basis weight of a sheet material forming the first face and the second face is 55 to 80%.   
     
     
         2 . The packaging bag according to  claim 1 , wherein
 the cushion is provided so as not to contact with a bottom when in an expanded state.   
     
     
         3 . The packaging bag according to  claim 1 , wherein
 the cushion comprises a paste end pasted to an inner face of the first edge or the second edge.   
     
     
         4 . The packaging bag according to  claim 1 , wherein
 the first face, the second face, and the cushion are made of a same material.   
     
     
         5 . The packaging bag according to  claim 1 , wherein
 the cushion is suspended in a folio state between the first edge and the second edge.   
     
     
         6 . The packaging bag according to  claim 2 , wherein
 the cushion comprises a paste end pasted to an inner face of the first edge or the second edge.   
     
     
         7 . The packaging bag according to  claim 2 , wherein
 the first face, the second face, and the cushion are made of a same material.   
     
     
         8 . The packaging bag according to  claim 3 , wherein
 the first face, the second face, and the cushion are made of a same material.   
     
     
         9 . The packaging bag according to  claim 6 , wherein
 the first face, the second face, and the cushion are made of a same material.   
     
     
         10 . The packaging bag according to  claim 2 , wherein
 the cushion is suspended in a folio state between the first edge and the second edge.   
     
     
         11 . The packaging bag according to  claim 3 , wherein
 the cushion is suspended in a folio state between the first edge and the second edge.   
     
     
         12 . The packaging bag according to  claim 4 , wherein
 the cushion is suspended in a folio state between the first edge and the second edge.   
     
     
         13 . A packaging bag comprising:
 a first face part comprising a first edge portion disposed on a first side of an opening;   a second face part facing the first face part and comprising a second edge portion disposed on a second side of the opening; and   a cushion part in an expandable sheet form and being suspended between the first edge portion and the second edge portion, and in which a plurality of slits extending in a direction intersecting a suspension direction are provided in a staggered manner, wherein   a percentage of a basis weight of a sheet material forming the cushion part with respect to a basis weight of a sheet material forming the first face part and the second face part is 55 to 80%.