| 摘要 |
PURPOSE: A multilayer sheet for a heat sealing is provided to have an improving effect of strength and durability of a product by having a high tearing strength. CONSTITUTION: A multilayer sheet comprises a mesh fabric layer(10), a hot melt adhesive layer(2) attached on a side of the mesh fabric layer, and a thermoplastic polyurethane layer(3) attached on the other side of the mesh fabric layer. The mesh fabric layer is a geo-textile fabric with 210-1500 denier. The melting point of the hot melt adhesive layer is 70-150 degree Celsius. The melting point of the thermoplastic urethane layer is 100-220 degree Celsius. The thermoplastic polyurethane layer is a linear polymer formed with the reaction of isocyanate compound and polyol, and the polyol is a polyol of high particles with the average particle of 1000-3000. |
