| 摘要 |
In order to make a laminate, a knitted terry-cloth elastic base fabric 42 is used, the fabric 42 having an elastic base made of synthetic yarn and a cotton pile. A film 28 of polyurethane resin is deposited on an anti-stick support web 16 and is set, and a layer 4 of polyurethane resin having adhesive properties is deposited on the film 28. The base fabric 42 is applied to the adhesive layer 40 whilst the latter is still liquid, after which the layer 40 is set. Finally, the film 28 is detached from the support web 16. The layers of polyurethane resin are impermeable to water and permeable to water vapor. Pieces of the laminate can be joined together by welding the respective film and adhesive to form a water tight join. |
