| 摘要 |
A knitted terry-cloth elastic base fabric (4) is used to make a laminate (2), the base fabric (4) having a cotton pile (8) and an elastic support (6) made of two different synthetic yarns. Two layers (16, 18) of polyurethane resin are deposited on an anti-stick support web and set to form a skin, and a layer (14) of polyurethane resin having adhesive properties is deposited on the skin layer (18). The base fabric (4) is applied to the adhesive layer (14) whilst the latter is still liquid, after which the adhesive layer (14) is set. Finally, the skin (16, 18) is detached from the support web. The layers of polyurethane resin are substantially impermeable to water and permeable to water vapour. Pieces of the laminate are joined together by ultrasonic welding to melt and re-set the respective skin (16, 18) and adhesive to (14) form a water-tight join and form a made-up article. During the welding, at least one yarn of the base fabric (4) does not melt. |
