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    • 8. 发明授权
    • Adhesive closure having enhanced burst strength for flexible bag
    • 粘合剂封闭剂具有增强的柔性袋的破裂强度
    • US5791783A
    • 1998-08-11
    • US912424
    • 1997-08-18
    • Jose PorchiaBrian C. Dais
    • Jose PorchiaBrian C. Dais
    • B65D33/20B65D33/18
    • B65D33/20B65D2101/0084Y10S383/903
    • An adhesive closure including an adhesive strip affixed transversely across a first inner surface of a front wall of a bag at a preselected distance from the opening of the bag; and a flexible flap member strip affixed transversely across a second inner surface of a rear wall of the bag aligned on the wall opposite from the adhesive strip. The flexible flap member is attached to the inner surface of the wall along one edge of the flexible flap member. The flexible flap member is pressable against and into the adhesive strip, whereby a seal is formed by contacting the adhesive strip with the flexible flap member. The flexible flap member is adapted to provide a shear opening force from the inside of the bag when the flap member is contacting the adhesive strip, and adapted to provide a peel opening force from the outside of the bag when the flap member is contacting the adhesive strip. The peel opening force is smaller than the shear opening force, thereby providing an enhanced burst strength to the bag.
    • 一种粘合剂封闭物,其包括沿袋子的开口预定距离横向跨越袋的前壁的第一内表面固定的粘合剂条带; 以及横向穿过所述袋的后壁的第二内表面上的柔性折板构件条,其对准在与所述粘合带相对的壁上。 柔性襟翼构件沿着柔性襟翼构件的一个边缘附接到壁的内表面。 柔性折板构件可压靠在粘合带中,由此通过使粘合带与柔性折板构件接触来形成密封。 柔性襟翼构件适于当襟翼构件接触粘合带时从袋的内部提供剪切力,并且当襟翼构件接触粘合剂时适于提供来自袋的外部的剥离开启力 跳闸。 剥离开启力小于剪切力,从而为袋提供增强的破裂强度。