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    • 87. 发明授权
    • High slip packaging film with trapped print
    • 高打印包装薄膜被困打印
    • US5419795A
    • 1995-05-30
    • US100011
    • 1993-07-29
    • John C. WoodGiuseppe Accardi
    • John C. WoodGiuseppe Accardi
    • B32B27/08B32B38/14B65D65/40B32B31/00
    • B32B38/14B32B27/08B32B38/0008B32B2309/12Y10T156/1067
    • A method of making a thermoplastic laminate includes the steps of extruding a tubular polymeric film; collapsing the extruded film to form a layflat film; slitting the edges of the collapsed film to form two plies; taking up both plies of the slit film onto a single take up roll to form a double wound film with two plies, the film having first and second outside surfaces; corona treating the first outside surface of the double wound film; applying a varnish to the treated surface; printing the varnished surface; corona treating the second outside surface of the double wound film; and taking up the printed film onto a wind-up roll such that the treated printed surface of one ply of the film in the roll bonds to the treated second outside surface on an adjacent wind in the roll, thereby forming a laminate. Alternatively, two separate films may be taken up on a take up roll to form a double wound film, and processed as described. The result is a trap printed laminate with good machinability and other properties.
    • 制造热塑性层压体的方法包括挤出管状聚合物膜的步骤; 塌缩挤出的薄膜以形成薄膜; 切开塌缩膜的边缘以形成两层; 将两片薄膜卷绕在单个卷绕辊上以形成具有两层的双卷绕膜,该膜具有第一和第二外表面; 电晕处理双卷绕膜的第一外表面; 在清洗表面涂上清漆; 印刷清漆表面; 电晕处理双卷绕膜的第二外表面; 并将印刷的薄膜卷绕到卷绕辊上,使得辊中的一层的经处理的印刷表面在辊中的相邻风上与经处理的第二外表面结合,从而形成层压体。 或者,两个单独的膜可以卷绕在卷绕辊上以形成双卷绕膜,并如所述进行处理。 结果是具有良好机械加工性和其他性能的疏水印刷层压板。