Wrapping Bag for Food Such as Sandwich

Abstract

A wrapping bag for food such as a sandwich includes a seal part formed by sealing two films between the opposite lateral edges in a vicinity of one longitudinal edges of the two films; a header part formed between the one longitudinal edges of the two films and the seal part; a cutting line, from which opening of the wrapping bag is started, being formed in the header part of one of the two films; an opening formed in the opposite longitudinal edges of the two films that are not sealed together; and an unsealing device that is provided in the one film to extend from a vicinity of the cutting line to a vicinity of the opening while crossing the seal part.

1 . A wrapping bag for food such as a sandwich, comprising:
 two films that are overlapped to each other and sealed together along their opposite lateral edges;   a seal part formed by sealing the two films between the opposite lateral edges in a vicinity of one longitudinal edges of the two films;   a header part formed between the one longitudinal edges of the two films and the seal part;   a cutting line, from which opening of the wrapping bag is started, being formed in the header part of one of the two films;   an opening formed in the opposite longitudinal edges of the two films that are not sealed together;   a housing part surrounded by the opening, the opposite lateral edges sealed together, and the seal part, of the two films; and   an unsealing device that is provided in the one film to extend from a vicinity of the cutting line to a vicinity of the opening while crossing the seal part.   
     
     
         2 . The wrapping bag according to  claim 1 , wherein the cutting line comprises a first cutting line having both ends extending toward the edges of the opposite longitudinal end and being projected toward the edges of the one longitudinal end to form a tab, and at least one second cutting line extending toward at least one of the lateral edges. 
     
     
         3 . The wrapping bag according to  claim 1 , wherein the two films each are formed into a trapezoid shape to have a narrower longitudinal end and a wider longitudinal end, the header part is provided on the narrower longitudinal end, and the opening is provided on the wider longitudinal end. 
     
     
         4 . The wrapping bag according to  claim 2 , wherein the opposite ends on the opposite longitudinal edges of the two films are cut out to have cutout with a narrower distance between the opposite lateral edges of the two films. 
     
     
         5 . The wrapping bag according to  claim 4 , wherein the cutouts each are formed in a continuous line of a circular-arc section on the side of a corresponding one of the lateral edges and a straight line section on the side of the opening.