| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag for a triangular sandwich whose bag opening is quickly closed by an unexperienced person without deforming the sandwich and the sandwich packaged in which stands by itself stably to be displayed with its sealed face at the bottom. SOLUTION: Two sheets of packaging films are formed into a roughly isosceles trapezoid bag with an opening on its bottom side for forming a triangular sandwich storage part. The first folding area is formed by extending the film on each opening side of the storage part. An end edge protrudes from the first folding area and the second folding area with a pasting part is formed on the inside face of the protruding end edge. When the films are folded roughly in a trapezoid shape with the first and the second folding areas facing each other in a condition where the sandwich is stored in the storage part, the second folding area is folded superimposing on the first folding area with the paste part partially exposed on the right and the left. COPYRIGHT: (C)2011,JPO&INPIT
|
