| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a self-standing bag which enables a breaking stress for unsealing to be easily concentrated to a part of an easily breaking part provided at a spout forming part, to perform more smoothly breaking, and a spout to be more easily formed. <P>SOLUTION: The self-standing bag 10 is formed by molding a bag body 11 made of a synthetic resin consisting of a bottom part 14 and a body part 12 equipped with the spout forming part 13 in a mold, and forms the spout by removing a predetermined part 16 to be cut by breaking the easily breaking part 15 of the spout forming part 13. The spout forming part 13 is provided to be protruded from the body part 12 in a upward direction X perpendicular to a placing plane P1 of the bottom part 14. The easily breaking part 15 is formed along a face P3 inclined to the face P2 in parallel to the placing face P1. On the predetermined part 16 to be cut of the spout forming part 13, a knob piece 17 is integrally formed and fixed so as to be close to the highest position of the easily breaking part 15. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
