| 摘要 |
The manufacturing method of an absorbent article according to the present invention includes: a step A of bonding, by using an ultrasonic bonding device, a continuum of a front waistband region and a continuum of a rear waistband region in predetermined regions each corresponding to a bonded region of the front waistband region and the rear waistband region after overlapping the continuum of the front waistband region and the continuum of the rear waistband region under conveyance; a step B of outputting a first predetermined signal indicating a failure state when it is determined that an output signal from the ultrasonic bonding device does not satisfy a first specified condition; and a step C of outputting a second predetermined signal indicating a failure state when it is determined that a bonded area in any of the predetermined regions does not satisfy a second specified condition.
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