Delivery envelope-type bag

Abstract

A delivery envelope-type bag, which is a bag manufactured from a plastic sheet, or the like, is provided with a storage section for storing the delivery item and a flap section formed from a sealing section that seals the storage section and a peeling section located between parallel perforations, and is configured so that the flap section is folded back along a folding section and adhesively fixed to the storage section by the sealing section. In the delivery envelope-type bag: the parallel perforations and the peeling section are formed to extend to both edges; and a variety of notched sections and formed adjacent to or near the peeling section at both edges of the flap section, and/or a variety cutout sections are formed near the peeling section on the folding section side at both edges of the flap section.

1 . A delivery envelope-type bag, which is made from a plastic sheet, a pulp sheet, or a composite sheet consisting of two or more materials selected among plastic, pulp and metal, and comprises a storage section that includes an opening portion and is used to store a product for delivery, and a flap section that includes a sealing section to close the storage section, parallel perforations and a peeling section located between the perforations, and which is provided by folding, along a fold, the flap section that is contiguous to the storage section, and by securely adhering the flap section to the storage section by using the sealing section, comprising:
 the parallel perforations and the peeling section are formed and extended across two edges of the flap section; and   notches are formed along the two edges of the flap section, adjacent to, or near the peeling section, and/or cutout portions are formed at the two edges of the flap section, near the peeling section on the side of the fold.   
     
     
         2 . The delivery envelope-type bag according to  claim 1 , wherein the parallel perforations are alternately arranged, so that a hole of the perforation on one side is located in the middle of two adjacent holes of the perforation on the other side. 
     
     
         3 . The delivery envelope-type bag according to  claim 1 , wherein along the two edges of the flap section  1 , the notches are formed substantially in a quadrilateral shape where one side is open along one of the edges of the flap section and the other side contacts the peeling section, and the cutout portions are formed substantially in an elongated rectangular shape with both ends in a small circular shape, near the peeling section on the side of the fold. 
     
     
         4 . The delivery envelope-type bag according to  claim 1 , wherein along the two edges of the flap section, the notches are formed substantially in a quadrilateral shape where one side is open along one of the edges of the flap section and the other side contacts the peeling section, and the cutout portions are formed substantially in an elongated rectangular shape with both ends in a semi-circular shape, near the peeling section on the side of the fold. 
     
     
         5 . The delivery envelope-type bag according to  claim 3 , wherein for the notches substantially in a quadrilateral shape, two corner portions along either edge of the flap section and a corner portion close to the fold are formed in a curved shape. 
     
     
         6 . The delivery envelope-type bag according to  claim 1 , wherein along the two edges of the flap section, the notches are formed, near the peeling section and on both sides of the peeling section, in a shape obtained by linking a circle to a side opposite to a side, of an elongated rectangular shape, that is open along one of the edges of the flap section. 
     
     
         7 . The delivery envelope-type bag according to  claim 1 , wherein along the two edges of the flap section, the notches in a semi-circular shape where a side is open along one of the edges of the flap section are formed, near the peeling section and on both sides of the peeling section.