APPARATUS FOR PERFORATING WEB LIKE MATERIALS
    17.
    发明申请
    APPARATUS FOR PERFORATING WEB LIKE MATERIALS 审中-公开
    用于执行网络物料的设备

    公开(公告)号:WO1998008645A2

    公开(公告)日:1998-03-05

    申请号:PCT/GB1997002283

    申请日:1997-08-27

    IPC分类号: B23K26/00

    摘要: Apparatus for the non-impact formation of perforations in a web of substrate material such as a polymer film (15) includes a static laser (20), movable beam deflector means, e.g. rotatable drum (30), carrying a plurality of optical reflectors (35) arranged to sequentially and selectively deflect the beam onto successive target sites on the web to perform perforation by ablation of the surface. Either the laser is selected on the basis that its emission wavelength coincides with a molecular absorption band at a resonant frequency or the material itself is doped to provide a suitable absorbance at the standard emission wavelength of the available laser.

    摘要翻译: 用于在诸如聚合物膜(15)的衬底材料的幅材中非穿孔形成穿孔的装置包括静态激光器(20),可移动的光束偏转器装置,例如, 可旋转滚筒(30),其承载多个光学反射器(35),其布置成顺序地和选择性地将光束偏转到卷材上的连续目标位置上,以通过表面的烧蚀来进行穿孔。 基于其发射波长与谐振频率处的分子吸收带一致,或者材料本身被掺杂以在可用激光器的标准发射波长处提供合适的吸光度,来选择激光器。