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    • 6. 发明专利
    • DE10352019A1
    • 2005-06-09
    • DE10352019
    • 2003-11-07
    • HENKEL KGAA
    • OBERDORF DIRKBARTHEL WOLFGANGFILECCIA SALVATOREWEREMBECK RAINER
    • B65D33/22B65D75/58B65D77/12
    • Packaging for free-flowing products consisting of a tubular bag composed of a flexible material. One end, which lies flat when the bag is filled, is formed by two broad-face panels lying flat against one another and narrow-face panels that are folded back by center fold lines between the opposite edges of the narrow-face panels, and positioned between the marginal areas of the broad-face panels. A side fold connects each narrow-face panel to one broad-face panel and another side fold connects the narrow-face panel to the other broad-face panel. The fold lines extend substantially parallel to the longitudinal axis of the bag. The end of the bag is closed by a sealing weld that extends in a transverse direction to the longitudinal axis of the bag. The sealing weld is controlled to be weaker than the other welds which connect the panels to form the panels into a bag for containing the product. Preferably the outer surfaces of the panels are treated to prevent their being sealed together when folded back