摘要:
A leak resistant toothless plastic zipper is provided. The closed end of the zipper fused together and/or is secured in position by a clamp from which a gasket extends toward the open end of the zipper to engage with the zipper slider in sealing the gap that would otherwise form at the zipper closed end. A hook is provided to secure the tab of the zipper slider in sealing engagement with the gasket when the slider is at the closed end. The gasket may be disposed about the zipper elements or interposed between the elements. A bag incorporating such a zipper is also disclosed.
摘要:
The zipper for a reclosable package wherein the zipper includes fragrance-carrying oil within an internal zipper volume or storage volume thereby confining the scent while the zipper and the package are closed. When the zipper is opened, the scent is allowed to escape to the consumer.
摘要:
The present disclosure relates to a high burst slider zipper which allows for bottom filling of reclosable packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing a peel seal or other frangible or separable connection between the zipper profiles, and by sealing a portion of one of the flanges to itself by a hard seal above the peel seal. This causes the external forces on a bag from bottom filling or shock loading to be directed toward the hard seal and further directed so as to cause a shear force against the peel seal, thereby increasing the resistance of the package to external forces.
摘要:
The disclosure relates to a zipper for a reclosable package wherein the zipper includes fragrance-carrying oil within an internal zipper volume or storage volume thereby confining the scent while the zipper and the package are closed. When the zipper is opened, the scent is allowed to escape to the consumer.
摘要:
A process for manufacturing reclosable bags (30) by forming a film (50) includes moving the film (50) and attaching to the film (50) sequentially and crosswise with reference to the direction of movement of the film (50), a fastener (1) including a first strip (2) supporting at least one reclosable profile (10) engaged with another reclosable profile (12) that is complementary thereto and supported by a second strip (4) or a part of the first strip (2), which will subsequently be attached to the film (50). Each strip (2, 4) includes at least one web (6, 8) extending substantially mostly sideways on one side of the profiles (12). The above arrangements make possible special fasteners (1) that include sliders (9), gasket membranes (26), fasteners inverted within the bag (30), peel seals (18, 20, 21) and hinged fasteners (1).
摘要:
The present disclosure relates to a high burst slider zipper which allows for bottom filling of reclosable packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing a peel seal or other frangible or separable connection between the zipper profiles, and by sealing a portion of one of the flanges to itself by a hard seal above the peel seal. This causes the external forces on a bag from bottom filling or shock loading to be directed toward the hard seal and further directed so as to cause a shear force against the peel seal, thereby increasing the resistance of the package to external forces.
摘要:
A reclosable vacuum storage bag that can be hermetically sealed by flat resealable means that extend across the full width of the bag. The flat resealable means are designed to provide a barrier to prevent ambient air from leaking into the evacuated interior volume of the bag. The storage bag is also provided with a plastic zipper. The flat resealable means can be arranged on the product side of the zipper, on the user side of the zipper, or in between two zippers installed in the storage bag.
摘要:
Methods of manufacturing reclosable packages having a slider-operated string zipper covered by a tamper-evident shroud that is provided with at least one opening that at least partially exposes the slider. In accordance with one method, openings are formed in a web of packaging material that is folded, placed over the slider-operated string zipper, and attached to the receptacle walls to form a shroud. Preferably, the openings are sized, shaped and situated so that they frame the slider on both sides of the shroud. In accordance with another method, a reclosable package having a slider-operated string zipper and a shroud with openings that at least partially expose the slider can be formed using a single web of packaging material that is folded and sealed to form a shroud that covers the string zipper.
摘要:
The present disclosure relates to a high burst slider zipper which allows for bottom filling of reclosable packages, such as large bags, and further provides increased resistance to damage from the dropping or shock loading of the filled package. This is achieved by providing a peel seal or other frangible or separable connection between the zipper profiles, and by sealing a portion of one of the flanges to itself by a hard seal above the peel seal. This causes the external forces on a bag from bottom filling or shock loading to be directed toward the hard seal and further directed so as to cause a shear force against the peel seal, thereby increasing the resistance of the package to external forces.
摘要:
Methods and apparatus for making reclosable packages having slider-actuated string zippers. More specifically, the apparatus is a form-fill-seal machine having means for placing product on a web of packaging film; means for forming a receptacle having an interior volume and a mouth, with the product in the interior volume and a string zipper installed in the mouth, the web of packaging film forming at least one wall of the receptacle; a slider insertion device for inserting sliders on the string zipper; and means for sealing the receptacle so that ambient air cannot enter the interior volume. The form-fill-seal machine may further include either means for aligning an edge of the web with a flangeless zipper strip of the zipper strip before the web is joined to the flangeless zipper strip or means for trimming an edge of the web after a portion of the web proximal to the edge has been joined to a flangeless zipper strip of the string zipper.