| 摘要 |
<p>A synthetic plastic bag for containing liquids, e.g., urine, has a plastic outlet tube (10). It is manufactured by a first step of seam welding the tube (10) between two superposed bag walls. In a subsequent step, an encircling sleeve (20) is slid over the tube (10) to a position where it contains within it the portions of the bag walls on either side of the tube (10). Thirdly, this sleeve (20) is compressed onto the tube (10) by a crimping operation conducted with the crimping force applied in a direction radially of the tube (10) but at substantially right angles to the plane in which the bag walls lie. Alternatively, the tube (10) may be molded in place over the end of the bag.</p> |
