| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packaging bag for chemical that facilitates adjustment of a quantity of chemical to be used and is easy to handle. <P>SOLUTION: The packaging bag for chemical includes: a spout part including a first base part disposed on part of the packaging bag, and a first cylindrical part connected to the outside of the first base part; and a connecting part including a second base part disposed in a position opposite the spout part and sealed, and a second cylindrical part connected to the inside of the second base part and connecting the first cylindrical part. The first and second cylindrical parts are sealed by corresponding sealing members. The diameter of the first cylindrical part is smaller than that of the second cylindrical part. The diameter of the first cylindrical part is larger than the diameter of a ring-like projecting part, which is provided at the leading end of the second cylindrical part to project in the direction of its root. <P>COPYRIGHT: (C)2013,JPO&INPIT |
