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    Product and process for heat sealing a paperboard carton having polymer coating on one side only
    2.
    发明公开
    Product and process for heat sealing a paperboard carton having polymer coating on one side only 失效
    一种用于热密封方法只用聚合物层以及产品设置在一侧上的，折叠箱。

    公开(公告)号：EP0576863A1

    公开(公告)日：1994-01-05

    申请号：EP93109033.6

    申请日：1993-06-04

    申请人： WESTVACO CORPORATION

    发明人： Calvert, Barry Gene ,  Donnellan, Walter Hamilton

    IPC分类号： B65D5/54 ,  B65D5/62 ,  B65D5/24

    CPC分类号： B65D5/62 ,  B29C65/103 ,  B29C66/1122 ,  B29C66/43 ,  B29C66/4326 ,  B29C66/71 ,  B29C66/72328 ,  B29C66/72343 ,  B29C66/7392 ,  B31B50/624 ,  B65D5/546 ,  B65D5/563 ,  Y02W30/807 ,  B29K2067/003 ,  B29K2023/06 ,  B29K2023/12

    摘要： Folded paperboard food cartons having a polymer coating only on the interior surface and sales graphics on a substantially unplasticized clay coated exterior surface are heat sealed at contiguous areas of overlapping flaps wherein the polymer coated interior surface is in direct contact with a small portion of the clay coated exterior surface or, where it is desired to secure together two portions of the clay coated exterior surface. In such heat sealing areas, small and accurately located exterior clay coated carton surface areas (71,72,73) are primed with a water based polymer emulsion such as ethylene vinyl acetate that is precisely applied to such areas by a printing press.

    摘要翻译： 具有在基本上未增塑粘土仅在所述内表面和销售图形的聚合物涂层折叠纸板食品纸箱涂覆外表面是在重叠的翼片的连续区域热封worin聚合物涂覆的内表面是在与粘土的一小部分直接接触 涂覆外表面，或在期望的粘土涂覆的外表面的两个部分固定在一起。 在寻求热密封区，小和精确地设定位于外部粘土涂覆的纸板箱的表面区域（71,72,73）与水性聚合物乳液引发：如乙烯乙酸乙烯酯没有被精确地施加由印刷机搜索区域。