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WET COATING COMPOSITIONS FOR PAPER SUBSTRATES, PAPER SUBSTRATES COATED WITH THE SAME AND PROCESS FOR COATING A PAPER SUBSTRATE WITH THE SAME.
WET COATING COMPOSITIONS FOR PAPER SUBSTRATES, PAPER SUBSTRATES COATED WITH THE SAME AND PROCESS FOR COATING A PAPER SUBSTRATE WITH THE SAME.
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机译:用于纸基材的湿涂料组合物,用相同的涂料涂覆的纸基材,以及用相同的涂料涂覆纸张基材的方法。
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摘要
A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber- based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.
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机译:提供了可用于涂布纤维素纤维基基材的湿涂料组合物。该组合物包括两种水性乳液。第一乳液包括氧化的石蜡/聚乙烯蜡,第二乳液包括乙烯/丙烯酸共聚物蜡,乙烯/丙烯酸酰胺共聚物蜡,乙烯/丙烯酸/丙烯酸酰胺共聚物蜡或它们的混合物。氧化的石蜡/聚乙烯蜡具有小于或等于2m N / m的表面能,该表面能基本上是分散能。干燥后的湿涂料组合物形成的涂层的表面能为分散能和极性能之和,范围为20至60 m N / m。还描述了用湿涂料组合物处理纤维素纤维基基材的方法,涂覆的基材和包括涂覆的基材的制品。该方法包括加热步骤,以允许涂层向纤维素纤维基基材的芯迁移。
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