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    • 5. 发明授权
    • Carpet tile production method
    • 地毯瓦生产方法
    • US4737221A
    • 1988-04-12
    • US38869
    • 1987-04-15
    • Peter W. BellDavid S. QueenJohn B. Smith
    • Peter W. BellDavid S. QueenJohn B. Smith
    • D06N7/00B32B1/06C09J3/18
    • D06N7/0081D06N7/0076D06N2201/082D06N2203/042D06N2203/08D06N2205/06D06N2207/123D06N2209/067D06N2209/1628Y10T156/1052Y10T156/109Y10T428/23979Y10T428/23986Y10T442/647Y10T442/669
    • A method of backing carpeting material 19 with hot-melt compositions such as atactic polypropylene (APP) or bitumen (with or without additives) comprises carefully doctoring selected thicknesses of the composition to the undersurface of the material 19 with the wear surface of the material uppermost. In one arrangement (FIG. 3) this is achieved using a lick roll arrangement 20 incorporating a doctor blade, cooling the backed product at cooling zones 28, 29 and applying the material to a nip formed by rollers 21. In another arrangement (FIG. 1) this is achieved by doctor box 16 applying the composition to a carrier 13, the carpeting material 19 then being laminated at roll 21 to the layer of composition, the laminate then being cooled before being stripped from the carrier (13). In a further arrangement (FIG. 2) the carrier is in the form of sheet material 15 which is supported by endless belt 13 and which is bonded into the hot-melt composition to become an integral part thereof.
    • 使用热熔组合物如无规立构聚丙烯(APP)或沥青(具有或不具有添加剂)的地毯材料19的背衬方法包括:将材料19的下表面的选定厚度仔细地涂覆到材料19的下表面上, 。 在一种布置(图3)中,这是使用结合有刮刀的舔辊装置20来实现的,在后退的冷却区域28,29上冷却支撑的产品,并将材料施加到由辊21形成的辊隙上。 1)这通过将组合物施加到载体13上的涂料盒16实现,然后将地毯材料19在辊21上层合到组合物层上,然后层压体在从载体(13)剥离之前被冷却。 在另外的布置(图2)中,载体是片材15的形式,其由环形带13支撑并且结合到热熔组合物中以成为其一体部分。