公开(公告)号：US6007666A

公开(公告)日：1999-12-28

申请号：US915040

申请日：1997-08-20

申请人： Joseph A. Bunch ,  Volney M. Bunch

发明人： Joseph A. Bunch ,  Volney M. Bunch

IPC分类号： B32B29/00 ,  B32B7/04 ,  B32B9/06 ,  B32B31/12 ,  B32B31/20

CPC分类号： B32B29/00 ,  B32B37/065 ,  B32B2317/12 ,  Y10T428/1307 ,  Y10T428/1341 ,  Y10T428/1379 ,  Y10T428/31808

摘要： According to the present invention, a laminar wrapping paper is provided comprising first and second paper layers or laminae. Each lamina has an inside surface coated with a barrier coating. The layers are laminated by heat lamination, wherein the barrier coatings are melted together, or by providing an adhesive between the coated inside surfaces. The lamination may be accomplished in a selective or discontinuous manner in order to form air pockets within the laminar structure to increase the insulation characteristics of the wrapping paper. A plasticizer is applied to the outside surface of the first lamina. Graphic designs or lettering may be printed on the outside surface to identify the wrapped product or for purposes of decoration. The present invention is also directed at a process and apparatus for manufacturing the laminar wrapping paper described herein. First and second webs of paper are unrolled and passed through coating apparatus to coat one side of each web with a barrier coating. An adhesive is applied to one of the coated sides of the webs to laminate the webs together, or alternatively heat lamination is performed using a hot roll. A plasticizer is then applied to the outer side of the first web.

摘要翻译： 根据本发明，提供了包括第一和第二纸层或薄片的层状包装纸。 每个薄片具有涂有阻隔涂层的内表面。 通过热层压层压层，其中阻隔涂层一起熔化，或通过在涂覆的内表面之间提供粘合剂。 层压可以以选择性或​​不连续的方式实现，以在层状结构内形成气泡，以增加包装纸的绝缘特性。 将增塑剂施加到第一层的外表面。 图案设计或刻字可以印在外表面上，以识别包装的产品或装饰的目的。 本发明还涉及用于制造本文所述的层状包装纸的方法和设备。 第一和第二纸幅被展开并通过涂覆装置以用阻隔涂层涂覆每个幅材的一侧。 将粘合剂施加到幅材的一个涂覆侧上以将幅材层压在一起，或者替代地，使用热辊进行热层压。 然后将增塑剂施加到第一纤维网的外侧。