| 摘要 |
<p>A bag which comprises a bag body formed of both front and rear sheets with a whole periphery of which sealed except for one portion, an injection and discharge port in the form of a flat cylinder connected at one end to the one portion and extended at the other end toward the outside of the bag body, and a pocket portion disposed on a front side or a rear side of a base of the injetion and discharge port near the bag body, said pocket portion capable of receiving the injection and discharge port which has been folded in an axial direction. Thus it is possible to obtain a bag which is of simple construction and capable of assuredly preventing leakage of the contents.</p> |
