Process and apparatus for producing two-colored or multicolored films,
and dashboard films or dashboards produced therefrom for motor vehicles
    1.
    发明授权
    Process and apparatus for producing two-colored or multicolored films, and dashboard films or dashboards produced therefrom for motor vehicles 失效
    用于生产双色或彩色胶片的工艺和设备,以及用于汽车制造的仪表板或仪表板

    公开(公告)号:US5858404A

    公开(公告)日:1999-01-12

    申请号:US823908

    申请日:1997-03-25

    摘要: Process and device for producing two-colored or multicolored switchboard films, dashboard films or dashboards for motor vehicles produced therefrom using at least one backing film or backing layer, at least one upper film or upper layer which is arranged thereon and contains dyes and/or color pigments. The polymer melts for these films or layers come from two or more extruders and are supplied first to an adapter or a black box having at least one opening or a gap for the backing film or layer and at least one further opening for the upper film or upper layer. According to the invention, an adapter or a black box is used in which a wedge-shaped projection or a projection of triangular cross section is arranged. At least two different-colored polymer compositions in melt form, having identical viscosity or virtually identical viscosity (difference in MFI at 230.degree. C./2.16 kg of 0 to 0.5 g/10 min), are employed for the upper film or upper layer, and are first of all separated or partially separated by the wedge-shaped projection or projection of triangular cross section in the adapter or in the black box but then, after having passed through the adapter or the black box, are guided alongside one another, the different-colored melts of the upper films combining with the melt layer of the lower film or lower layer prior to exiting the extruder die.

    摘要翻译: 用于生产用于使用至少一个背衬膜或背衬层制造的机动车辆的双色或多色配电板膜,仪表板膜或仪表板的方法和装置,其上布置有至少一个上膜或上层,并含有染料和/或 彩色颜料。 这些聚合物熔融的这些膜或层来自两个或更多个挤出机,并且首先被供应到具有用于背衬膜或层的至少一个开口或间隙的适配器或黑盒,以及用于上部膜的至少一个另外的开口 上层。 根据本发明,使用适配器或黑盒,其中布置有楔形突起或三角形横截面的突起。 熔体形式的至少两种不同颜色的聚合物组合物具有相同的粘度或实际上相同的粘度(在230℃/ 2.16kg的0至0.5g / 10min的MFI中的差异)用于上部膜或上层 并且首先通过适配器或黑盒中的三角形横截面的楔形突起或突起部分地分离或部分分离,然后在通过适配器或黑盒之后彼此相互引导, 在离开挤出机模具之前,上部薄膜与下部薄膜或下层的熔融层结合的不同颜色的熔体。