Double wrap packaging apparatus
    1.
    发明授权
    Double wrap packaging apparatus 失效
    双包装设备

    公开(公告)号:US3896604A

    公开(公告)日:1975-07-29

    申请号:US33717173

    申请日:1973-03-01

    申请人: AMERICAN CAN CO

    摘要: A film of heat shrinkable plastic material is wrapped about four sides of an object and heat welded. A second heat shrinkable film is wrapped and heat welded about the object at right angles to the wrap of the first film. Both films are wider than the package faces about which they are wrapped. The films are heated to shrink both films and to cause the overlapping portions of the two films to heat bond together.

    摘要翻译: 热收缩塑料材料薄膜围绕物体的四面缠绕并进行热焊接。 第二热收缩膜被包裹并且以与第一膜的包裹成直角的方式热焊接在物体上。 两个电影都比它们被包裹的包装面更宽。 将膜加热以收缩两个膜并使两个膜的重叠部分热粘合在一起。