| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plastic pouch with a flat pouch type which can be efficiently produced at a low cost, and can hold a position of an automatic opening mechanism which is automatically opened by increasing the inner pressure of the pouch at a high position without using an auxiliary tool when the pouch is placed flat in the electric range and is cooked by heating. <P>SOLUTION: At least one of the front film and the back film constituting the plastic pouch is folded back over the whole length in the width direction, and the peripheral edge part is heat-sealed to form at least one position of the folding back part communicating with the pouch body, and the automatic opening mechanism which is automatically opened when the pouch is heated by the microwave oven is formed near the end part of the pouch close to the folded back part. <P>COPYRIGHT: (C)2009,JPO&INPIT |
