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    • 27. 发明申请
    • Multiple ply paperboard material having improved oil and grease resistance and stain masking properties and method for forming same
    • 具有改善的油和油脂抵抗性和防污性能的多层纸板材料及其形成方法
    • US20030226648A1
    • 2003-12-11
    • US10164396
    • 2002-06-06
    • William T. McDonnellMary Ellen McKillip
    • D21H019/36D21H021/16D21H027/30
    • B32B29/06B32B2037/243B32B2317/12B32B2553/00B65D5/563D21H19/828D21H19/84D21H21/16D21H27/10D21H27/30Y10T428/24802Y10T428/24934
    • A multiple-ply paperboard material having improved oil and grease resistance properties, and improved stain masking properties to minimize the appearance of oil and grease stains in the paperboard material, and a method for forming same. The multiple-ply paperboard includes a substantially paperboard substrate having at least two plies, including at least a top ply and a bottom ply formed of substantially paperboard material, a grease resistant coating, a pigment-based pre-coating and a pigment-based top coating. The grease resistant coating includes a fluorochemical component applied to the outer surface of the top ply and to the outer surface of the bottom ply to hinder the penetration and migration of grease and oil into said substantially paperboard substrate through both the top ply and the bottom ply. The pigment-based pre-coating is applied to the top ply over the grease resistant coating, while the top coating is applied over the pre-coating. The pre-coating and top coating both include an opacity enhancing component, such as titanium dioxide, to minimize the appearance of grease and oil stains in the paperboard material. A separate masking agent may also be coated onto the top ply, integrated into the grease resistant coating and/or added to at least one of the pigment based coatings to help mask grease and oil stains.
    • 具有改进的油和油脂抵抗性能的多层纸板材料,以及改进的防污性能,以最小化纸板材料中油和油脂污渍的外观及其形成方法。 多层纸板包括具有至少两层的基本上纸板基材,其包括至少由基本纸板材料形成的顶层和底层,防油涂层,基于颜料的预涂层和基于颜料的顶层 涂层。 防油涂层包括施加到顶层的外表面和底层的外表面的含氟化合物组分,以阻止油脂和油通过顶层和底层层的渗透和迁移进入所述基本纸板基材 。 将基于颜料的预涂层施加到耐油脂涂层上的顶层上,同时将顶涂层涂覆在预涂层上。 预涂层和顶涂层都包括不透明度增强组分,例如二氧化钛,以最小化纸板材料中的油脂和油渍的外观。 单独的掩蔽剂也可以涂覆在顶层上,整合到耐油脂涂层中和/或添加到至少一种基于颜料的涂层中,以帮助掩盖油脂和油渍。