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:
The disclosure pertains to method for manufacturing reclosable packages, bags or pouches wherein, typically, a unisex zipper is looped and sealed inside of the package. The formation of the looped zipper segment causes the package to have a wide open mouth, and a natural tendency toward the open configuration. Both transverse and machine direction methods are disclosed, as well as resulting packages which may include a spout.
摘要:
The present disclosure relates to a high burst closure which allows for bottom filling of 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 profiles that combine an upper portion of one profile and its related flange, so as to form a juncture above a peel seal joining one profile to the other, so that external forces on a package or bag from bottom filling or shock loading are directed toward the juncture thereby causing a shear force against the peel seal or other frangible connection, thereby increasing the resistance of the package to external forces.
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 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 present disclosure relates to a method for producing 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 zipper is illustrated, which includes a first profile having a first interlocking element, a first consumer side flange with a first consumer side intermeshing contour and a first product side flange with a first product side intermeshing contour. The zipper includes a second profile which includes a second interlocking element, a second consumer side flange with a second consumer side intermeshing contour, and a second product side flange with a second product side intermeshing contour. The first and second consumer side intermeshing contours are complementary intermeshing contours and the first and second product side intermeshing contours are complementary intermeshing contours. As a result, when the interlocking elements are engaged, the first and second consumer side intermeshing contours are capable of intermeshing and the first and second product side intermeshing contours are capable of intermeshing.
摘要:
A security zipper is provided, which includes a consumer side zipper pair and a product side zipper pair, where each zipper pair is capable of secure mating. Between the zipper pairs is an intermediate flange pair which is layered with an adhesive as well as an adhesive enhancer to securely connect the intermediate flange pair. A slider is provided over the consumer side zipper pair, the product side zipper pair and the intermediate flange pair which mates the zipper pairs and connects the intermediate flanges so that the zipper is securely closed. A bag is also disclosed, which includes the security zipper and a connected product side pouch. In addition, a method for manufacturing the bag is disclosed.
摘要:
The disclosure relates to the attachment of polyethylene components, such as, but not limited to, zipper profiles for a reclosable package, to film made from polylactic acid. Functionalized polyolefin is laminated or co-extruded onto the polylactic acid and serves as an intermediate or tie layer for the attachment of the polyethylene components thereto.