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    • 7. 发明授权
    • Polymeric sheet having an incompatible ink permanently bonded thereto
    • 具有永久性粘合剂的不溶性油墨的聚合物薄片
    • US5162141A
    • 1992-11-10
    • US628575
    • 1990-12-17
    • Raymond G. DaveyCharles H. HinesKenneth K. KoWalter J. Lewicki, Jr.Dean L. Putt
    • Raymond G. DaveyCharles H. HinesKenneth K. KoWalter J. Lewicki, Jr.Dean L. Putt
    • B32B27/20B32B27/00B32B27/30B41M1/30D06N7/00E04F15/16
    • B41M1/30Y10T428/239
    • The adhesive system of the present invention is suitable for use in adhering an incompatible ink system to a polymeric film; particularly, adhering a lithographic ink or electrographic toner bonded to a floor covering. The polymeric sheet and incompatible ink have a primer layer interposed between them or the ink layer is encapsulated between the two primer layers. The primer may be solvent based or aqueous based and preferably includes a benzene derivative, ketone, acetate or nitroparaffin solvent or film former. The primer is compatible with the polymeric sheet and diffuses into the ink layer. The preferred solvent or film former includes methyl isobutyl ketone, methyl ethyl ketone, n-propyl acetate, isopropyl acetate, or N-methyl-2-pyrrolidone. The primer also includes a polyvinyl resin, acrylic resin, polyurethane resin or polyester resin, and optionally a pigment. To deter dot distortion of the ink, the primer should have a glass transition temperature (T.sub.g) of at least about 60.degree. C., and preferably at least about 100.degree. C.
    • 本发明的粘合剂体系适用于将不相容的油墨体系粘合到聚合物膜上; 特别地,粘合到地板覆盖物上的平版印刷油墨或电子照相调色剂。 聚合物片材和不相容的油墨具有插入其间的底漆层或​​油墨层被包封在两个底漆层之间。 底漆可以是溶剂型或水性的,优选包括苯衍生物,酮,乙酸酯或硝基石蜡溶剂或成膜剂。 底漆与聚合物片材相容并扩散到油墨层中。 优选的溶剂或成膜剂包括甲基异丁基酮,甲基乙基酮,乙酸正丙酯,乙酸异丙酯或N-甲基-2-吡咯烷酮。 底漆还包括聚乙烯树脂,丙烯酸树脂,聚氨酯树脂或聚酯树脂,以及任选的颜料。 为了防止墨水的点变形,底漆应该具有至少约60℃,优选至少约100℃的玻璃化转变温度(Tg)