| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily mount a sack body including a condom and a fingerstall simply via the pulling of the projected part of a filament material by rolling up the filament material around the rolling part of the sack body, and projecting the end of the filament material. SOLUTION: At a sack body manufacturing process, an annular reinforced part 2 is formed at the open end of the half-finished product of a sack body 1 mounted on a core 5 via a folding process or the like. Thereafter, the base end 3a of a filament material 3 used as an aid for mounting and demounting the sack body 1 and having an elasticity is folded, and the folded part 3a thereof is bonded to the sack body 1 near the open end thereof for rolling up the material 3 as well at the time of rolling up the open part 4 of the sack body 1. According to this construction, the forward end 3b of the material 3 is projected at the time of" rolling up the sack body 1. Also, the sack body 1 can be expanded simply by pulling the forward end part 3b at the time of mounting, and can be easily fitted to a mounting object.</p> |
