| 摘要 |
<p>PURPOSE: To assuredly prevent leakage of water from a juncture side of a water-barrier sheet by using, as an adhesive, a water absorbing adhesive which contains a water absorbing resin. CONSTITUTION: A water absorbing adhesive which contains a water absorbing resin is used as an adhesive. For the adhesive, a water absorbing adhesive comprising the water absorbing resin and a rubber adhesive or a thermoplastic resin adhesive is used. The water absorbing resin of 20-200 pts.wt. is preferable based on 100 pts.wt. of rubber component or thermoplastic resin component. For the rubber adhesive, a self-vulcanizing rubber adhesive is preferable. For the thermoplastic resin adhesive, a polypropylene, a polyethylene, and an EVA are preferable. That is, edge parts of water-barrier sheets 10A and 10B consisting of fiber sheet layers 12 and water-barrier outside face layers 11 layered on top and bottom faces of the fiber sheet layers 12 are superposed. In between the water-barrier sheets, a sheet formed of the adhesive is inserted so as to be an adhesive layer 13, and it is pressed by a roller. Next, the adhering parts are stitched together by a sewing thread 14.</p> |
