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    • 7. 发明授权
    • Method for attaching reclosable zipper strip transversely to
thermoplastic film material
    • 将可再闭合的拉链条横向于热塑性薄膜材料附接的方法
    • US6017412A
    • 2000-01-25
    • US110663
    • 1998-07-06
    • Donald L. Van ErdenArt MalinMichael J. McMahonLawrence Share
    • Donald L. Van ErdenArt MalinMichael J. McMahonLawrence Share
    • B31B19/90B65B43/04B65B51/10
    • B31B19/00B31B2219/9022
    • A method for attaching reclosable zipper strips transversely to thermoplastic film material which may be used to make reclosable bags or packages in a form-fill-seal machine is claimed. The zipper strip includes a male profile and a female profile. The male profile includes a male interlocking member and an integral web comprising a trailing flange and, optionally, a leading flange. Likewise, the female profile includes a female interlocking member and an integral web comprising a trailing flange and, optionally, a leading flange. As the film material is advanced into the form-fill-seal machine in bag length increments, the interlocked zipper strip is disposed on the film material transversely thereto with the trailing flange oriented in a direction opposite to the motion of the film material. The zipper strip is then sealed to the film material at its extremities. In this manner the male and female profiles are sealed to each other and to the film material. The sealing may be continuous or may take the form of spot seals.
    • 要求用于将可再闭合的拉链条横向放置在热塑性薄膜材料上的方法,所述热塑性薄膜材料可用于在填充密封机器中制造可再封闭的袋子或包装。 拉链条包括一个公型材和一个母型材。 阳型材包括一个凸形互锁构件和一个整体的腹板,该腹板包括后凸缘和任选的前凸缘。 同样,阴型轮廓包括母联锁构件和整体腹板,其包括后缘和任选的前凸缘。 当薄膜材料以袋长度增量进入成形 - 填充 - 密封机器时,互锁的拉链条被横向地设置在薄膜材料上,其中后凸缘沿着与薄膜材料的运动相反的方向定向。 然后将拉链条在其末端密封到薄膜材料。 以这种方式,阳和阴轮廓彼此密封并且与膜材料密封。 密封可以是连续的或可以采取点密封的形式。