| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for detecting defect of a transversely sealed portion of a packaging bag. <P>SOLUTION: In the detection method, an upper limit 1 sensor 51a is installed at a position of a prescribed distance (c1) upwards from the reference line 101a of an upper edge of a packaging bag, a lower limit sensor 52 is installed at a position of a prescribed distance (d) downward from the reference line, and the defect of a packaging bag is determined on the basis of the received light amount of the upper limit 1 sensor 51a and the lower limit sensor 52. <P>COPYRIGHT: (C)2012,JPO&INPIT |
