Systems And Methods For Providing Micro-Aberrations On Film
    28.
    发明申请
    Systems And Methods For Providing Micro-Aberrations On Film 有权
    用于在薄膜上提供微观像差的系统和方法

    公开(公告)号:US20140151934A1

    公开(公告)日:2014-06-05

    申请号:US14097448

    申请日:2013-12-05

    IPC分类号: B29C59/06

    摘要: Systems and methods for forming a vacuum formed, apertured film with micro-aberrations may be disclosed. For example, a polymer web such as a molten polymer web may be received at an engagement point between a screen with a positive aberration and a roller comprising a surface with a negative depression. The roller may have a diameter of no more than about 5.5 inches. A micro-aberration may be expanded, for example, on a land of the polymer web at the engagement point by inserting the positive aberration on the screen into the negative depression on the surface of the roller at a pressure of about 1.5 to about 3.5 pounds per linear inch (PLI). Additionally, one or more apertures are formed in the polymer web adjacent to a micro-aberration on a land.

    摘要翻译: 可以公开形成真空的系统和方法,具有微像差的多孔膜。 例如,可以在具有正像差的屏幕和包括具有负凹陷的表面的辊之间的接合点处接收诸如熔融聚合物纤维网的聚合物纤维网。 辊可以具有不超过约5.5英寸的直径。 例如,可以在接合点在聚合物纤维网的平台上扩大微像差,通过将屏幕上的正像差插入到辊的表面上的负凹部中,压力为约1.5至约3.5磅 每线性英寸(PLI)。 此外,一个或多个孔形成在聚合物网中,与陆地上的微像差相邻。