| 摘要 |
<P>PROBLEM TO BE SOLVED: To wrap up a sandwich with a rectangular film. <P>SOLUTION: The rectangular sandwich 3 is placed on the film 1 having a severable part 2 extending along the whole length of the film, and the film 1 is folded into a bag shape. At this time, the edges of the film 1 are overlapped each other directly, or folded and then overlapped, and the overlapped parts are joined by a joining means 5, such as ultrasonic welding, high-frequency welding, heat welding, labeling, or the like, to form a wrapping bag 10. Since the bag is formed as the sandwich is wrapped with the rectangular film, not pre-formed to put the sandwich in the bag, the sandwich is wrapped to make it closely attached to the bag. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
