| 摘要 |
A carton (1) for fluids has an upper wall (9) of plastic coated cardboard onto which a pouring device (10) is attached. The pouring device (10) comprises a lower part (11) with at least one hole (14', 15') connected by a hinge (12) to a cover (13) having ≥ one closure cap (16, 17). Holes (14', 15') are surrounded by collars and the closure caps (16,17) have sealing lips which fit over the collars to close the pouring hole. On the underside of the lower part (11) is a connector which extends into the carton (1) through a hole in the upper wall (9) and is welded to either the inner and/or outer faces of the upper wall (9). A claimed mfg.. process involves use of a strip of laminated material with an aluminium coating on the inside. After punching the holes a plastic pouring device (10) is placed over the holes and welded to the upper wall (9). The strip is then shaped, filled and welded. A claimed tool for attaching the pouring device to the top wall (9) includes heating plates which move against the holes in the upper wall (9), have central projections similar in dia. to the sealing lips of the closure cap and have a height greater than the upper wall (9) thickness. |
