초록 ▼

A zipper arrangement for use in manufacturing thermoplastic bags that includes a zipper and at least one slider. The zipper includes first and second opposing tracks. The first track has a first profile and the second track has a second profile. The first and second profiles are releasably engageabl

A zipper arrangement for use in manufacturing thermoplastic bags that includes a zipper and at least one slider. The zipper includes first and second opposing tracks. The first track has a first profile and the second track has a second profile. The first and second profiles are releasably engageable to each other. The first track has one or more spaced primary notches interrupting the first profile. At least one slider is inserted onto the first profile via a respective one of the primary notches. The slider is adapted to engage and disengage the first and second profiles in response to movement along the zipper. The second track may have one or more spaced primary notches interrupting the second profile. The spaced primary notches of the second track are generally aligned to respective ones of the primary notches of the first track. At least one slider is inserted onto the aligned pairs of primary notches via a respective one of the generally aligned notches.

대표청구항 ▼

1. A web structure for use in a form-fill-seal machine, comprising:a web extending between a pair of free longitudinal edges; and a zipper arrangement including a zipper and a plurality of sliders, said sliders being mounted to said zipper at spaced locations, said zipper being secured to said web,

1. A web structure for use in a form-fill-seal machine, comprising:a web extending between a pair of free longitudinal edges; and a zipper arrangement including a zipper and a plurality of sliders, said sliders being mounted to said zipper at spaced locations, said zipper being secured to said web, said zipper being generally parallel to and located away from said longitudinal edges.