摘要:
The method and apparatus relates to providing a slit, perforation, line of weakness or similar structure in a flange of a zipper for a reclosable package or bag, including a high-capacity zipper. The slit, perforation, line of weakness or similar structure provides an opening for filling the reclosable package or bag without the need to separate the zipper profiles from each other. After filling, the opening is sealed and the cosmetic appearance of the reclosable package or bag is maintained.
摘要:
The disclosure pertains to various embodiments of zippers with a tear flange for use in a reclosable flexible package or bag. A line of weakness can be introduced into the tear flange by application of a peel seal polymer resin or of a foaming agent. The disclosure includes further embodiments wherein lines of weakness are introduced into the flange of zippers in reclosable packages or bags.
摘要:
The disclosure pertains to a sleeve cover for a slider clip which is used for such applications as high pressure pasteurization wherein high pressure is applied to a reclosable bag, including a zipper and slider, which typically includes foodstuffs such as meat products. The sleeve cover is molded, glued or otherwise attached, to the slider to prevent the film of the bag from pressing against and entering the interstices between the slider and the zipper profile and subsequently deforming, pinching or rupturing.
摘要:
This disclosure pertains to a child deterrent closure with multiple interlocking elements on each zipper profile. The lower interlocking element of one of the profiles includes an interior flange which is unsealed thereby causing opening forces on that profile to be directed to a lower seal rather than to the lower interlocked elements. The interior flange must be moved to expose the lower interlocked elements and to direct opening forces to the lower interlocked elements.
摘要:
The disclosure pertains to various embodiments of zippers with a tear flange for use in a reclosable flexible package or bag. A line of weakness can be introduced into the tear flange by application of a peel seal polymer resin or of a foaming agent. The disclosure includes further embodiments wherein lines of weakness are introduced into the flanges of zippers in reclosable packages or bags.
摘要:
A method and apparatus is disclosed which include a pair of opposed seal bars for the manufacture of reclosable packages. The method and apparatus are particularly adaptable to form fill seal manufacture of reclosable packages. At least one of the opposed seal bars includes a rubberized or otherwise deformable sealing surface. This allows a hermetic seal to be formed across an abrupt transition of thickness of material between the opposed seal bars, such as when a zipper ends adjacent to a side seal in a reclosable bag.
摘要:
A method and apparatus is disclosed which include a pair of opposed seal bars for the manufacture of reclosable packages. The method and apparatus are particularly adaptable to form fill seal manufacture of reclosable packages. The first opposed seal bars includes a concave metal sealing surface and the second opposed seal bar includes a rubberized or otherwise deformable sealing surface. This allows a hermetic seal to be formed across an abrupt transition of thickness of material between the opposed seal bars, such as when a zipper ends adjacent to a side seal in a reclosable bag.
摘要:
The disclosure pertains to a sleeve cover for a slider clip which is used for such applications as high pressure pasteurization wherein high pressure is applied to a reclosable bag, including a zipper and slider, which typically includes foodstuffs such as meat products. The sleeve cover is molded, glued or otherwise attached, to the slider to prevent the film of the bag from pressing against and entering the interstices between the slider and the zipper profile and subsequently deforming, pinching or rupturing.
摘要:
The disclosure relates to a method and apparatus wherein extra mass is added to a profile of a slider zipper prior to the ultrasonic or thermal forming of the end stomps. This results in an end stomp of increased size and height, thereby providing a greater resistance to the slider being pulled from the ends of the zipper.