Method of and apparatus for maintaining uniform hot melt coatings on thermally sensitive webs
    55.
    发明公开
    Method of and apparatus for maintaining uniform hot melt coatings on thermally sensitive webs 失效
    方法和装置用于均匀地保持在热敏感腹板的热粘合剂涂层的温度。

    公开(公告)号:EP0291598A2

    公开(公告)日:1988-11-23

    申请号:EP87306531.2

    申请日:1987-07-23

    IPC分类号: B05D1/26 B05C5/04 B05C11/10

    摘要: Uniformity of hot melt coatings on thermally sensitive plastic and other webs (1) is maintained by use of a silicone or other rubber-like web back-up roll (R₁) the dimensional stability of which is maintained during hot melt coating of the webs (1) by a heat-conducting idler roll (R₂) directly contacting the back-up roll (R₁) temperature and a heat transfer source (H) for temperature deficiencies on the silicone roll surface (R₁), aiding constant nozzle(N)-to-web (1) spacing (B) irrespective of temperature variations and line speeds. Provision is also made for the introduction of chilling, if required.

    摘要翻译: 热熔涂层对热敏感的塑料和其它纤维网(1)的均匀性是通过使用硅树脂或其它橡胶类的Web支承辊(R1)的所有的尺寸稳定性,其腹板的热熔涂布(期间保持的保持 1)由导热空转辊(R2)直接接触支承滚子(R1)的温度和用于所述硅氧烷的辊表面上的温度不足(R1),辅助恒定喷嘴(N)的传热源(H) - 到幅材(1)的间距(B),不考虑温度的变化和线速度。 因此,委员会正在为引进的冷做,如果需要的话。