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    • 77. 发明专利
    • Water repellent paper
    • 水印纸
    • JP2011252245A
    • 2011-12-15
    • JP2010125649
    • 2010-06-01
    • Oji Paper Co Ltd王子製紙株式会社
    • MIKADO HIDEYUKIWATABE TETSUYAYAEDA TORUYAMAMOTO MANABU
    • D21H19/18C09K3/18D21H19/22D21H21/16
    • PROBLEM TO BE SOLVED: To provide a water repellent paper that hardly causes reduction of water repellency due to heat without applying an undercoating agent on the paper even in a small amount of coating of a water repellent.SOLUTION: A water repellent paper has a coating layer composed of a wax-based water repellent and a polyacrylamide-based polymer in the solid mass ratio of 99.9-98.0:0.1-2.0 provided at least in one surface of a paper-supporting body. In the water repellent paper, the polyacrylamide-based polymer has a type B viscosity of 0.5 mass% aqueous solution of 50-2000 mPa s at 20°C according to JIS Z 8803-1991.
    • 要解决的问题:为了提供即使在少量的防水涂料中也不会在纸上施加底涂剂而难以引起由于热量而导致的拒水性降低的防水纸。 解决方案:防水纸具有由蜡基防水剂和聚丙烯酰胺类聚合物组成的涂层,固体质量比为99.9-98.0:0.1-2.0,其至少在纸张的一个表面上提供, 支撑体。 在防水纸中,根据JIS Z 8803-1991,聚丙烯酰胺类聚合物的B粘度为20质量%时的20质量%的50质量%的水溶液。 版权所有(C)2012,JPO&INPIT