公开(公告)号：EP0466147A1

公开(公告)日：1992-01-15

申请号：EP91111552.5

申请日：1991-07-11

申请人： SWEETHEART CUP COMPANY, INC.

发明人： Matheson, Derek S. ,  Bush, Wesley R. ,  Kemmet, Carlton L. ,  Lundgren, Donald C. ,  Norwood, David W. ,  Brown, Robert ,  Balordi, Romano ,  Krasnokutsky, Onisim ,  Hammett, Daniel E.

IPC分类号： B31B1/74 ,  B05B13/06

CPC分类号： B05B13/0627 ,  B05B13/0609 ,  B31B50/745 ,  B31B50/756 ,  Y10S118/03

摘要： Single ply paperboard containers (20) are wax-coated by directing a relatively narrow spray band (SP) of atomized wax towards the interior surfaces of the containers being treated. The spray band (SP) is volumetrically asymmetrical and is oriented relative to the interior surfaces of the container such that its volumetric asymmetry (SP') is directed towards the bottom circumferential seam between the tubular side wall and bottom wall of the containers (20). In this manner, a minimal (but fluid-impervious effective) nonsaturating amount of wax will be applied to the interior surfaces of the container so as to preserve the vivid appearance of color graphics and/or indicia that may be printed on the exterior surface of the container. At the same time, the volumetric asymmetry (SP') and orientation of the spray band ensures that a maximum amount of wax will be applied at or near the circumferential bottom seam so that a fluid-impervious fillet seal may be established thereat. The appearance of the color graphics and/or indicia may optionally be further improved by the electrostatic spray application (22, 24) of a suitable lacquer. The applied lacquer, when dried, will thereby enhance the "glossy" exterior appearance of the interior wax-coated containers (20).

摘要翻译： 通过将雾化蜡的相对狭窄的喷雾带（SP）引向待处理的容器的内表面来将单层纸板容器（20）蜡涂覆。 喷雾带（SP）是体积不对称的并且相对于容器的内表面定向，使得其体积不对称（SP'）指向容器（20）的管状侧壁和底壁之间的底部周向接缝， 。 以这种方式，对容器的内表面施加极少的（但不透液体的有效的）非饱和量的蜡，以便保持可以印在外表面上的彩色图形和/或标记的生动的外观 容器 同时，喷雾带的体积不对称（SP'）和取向确保了在圆周底部接缝处或附近施加最大量的蜡，使得可以在其上建立不透液体的内圆角密封。 彩色图形和/或标记的外观可以任选地通过合适的漆的静电喷涂（22,24）进一步改进。 所施涂的漆在干燥时将由此增强内部蜡涂覆的容器（20）的“光滑”外观。