| 摘要 |
<p>Elastic leg diaper (2') and a method and equipment for its manufacture. A preferred form of the diaper uses for the entire moisture impermeable backing sheet (4) an elastomeric material of the type that is heat unstable and relatively inelastic in its unshrunk form and stable and relatively elastic in its heat shrunk form. Numerous materials of this type are available. Included among them are block copolymers which include a rubbery material as one component, polyurethanes, and irradiated polyethylene. Diapers (2') made using one of these materials as a backing sheet (4) can be conventionally assembled. After assembly, the marginal areas, (10, 12) which may be either or both of the transverse and longitudinal margins, may be heated to a sufficient temperature for shrinkage to occur in the backing sheet (4).</p> |
