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Being junction structure of the waterproofing cloth where
Being junction structure of the waterproofing cloth where
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机译:作为防水布的接合结构
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摘要
An improved joining structure for a waterproof fabric composed of a base fabric with a soft (elastomeric) resin film adhered thereon is provided. The joining structure is formed in a welt seam in which a hot-melt resin adhesive layer is interposed as a part of intermediate layers of the structure. The joining structure has properties of (1) bond strength /= 25 kg/25 cm width, (2) bending stiffness /= 20 gf.cm2/cm and (3) water resistance after rubbing 1,000 times according to Scott shape method /= 800 mm H2O. The joining structure can be formed by a method including joining the waterproof fabrics to form a welt seam with a hot melt resin layer put between and following that applying a high-frequency welding to the welt seam portion at a condition with an insulating elastic sheet interposed between the welt seam portion and electrode means to cause the hot-melt resin to be melted. IMAGE
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