| 摘要 |
PURPOSE:To obtain high adhesive strength while also acquiring tear strength sufficiently resisting usage when two single-sided stuck waterproof sheets are bonded by a high-frequency welder. CONSTITUTION:A waterproof sheet is manufactured in such a manner that a base fabric 2 is woven in plain weave by the union yarn of polyacrylic fibers and cotton, and further woven in plain weave coarsely by the spun yarn of polyester fibers, and a soft polyvinyl chloride film 3 is bonded by polyurethane adhesives 4. |
