The present disclosure relates to spaced multi-rib zippers, reclosures or closures for flexible packaging, wherein openings or lines of weakness are created between rows of mating elements.

The present application provides a container that includes: a first layer of sheet material forming the first side of the container and at least a second and third layer of sheet material forming the second side of the container, a pair of closure strips extending along the opening of the container, each of the closure strips having at least one of a male and a female linear interlocking strip. A first of the pair of closure strips includes: an extension above and an extension below the respective linear interlocking strip, and a second of the pair of closure strips comprising an extension below the respective linear interlocking strip. The linear interlocking strips configured to be released from each other by pulling the extensions below the linear interlocking strips apart using a pair of flaps extending from the closure strip extensions.

The present application provides a container that includes: a first layer of sheet material forming the first side of the container and at least a second and third layer of sheet material forming the second side of the container, a pair of closure strips extending along the opening of the container, each of the closure strips having at least one of a male and a female linear interlocking strip. A first of the pair of closure strips includes: an extension above and an extension below the respective linear interlocking strip, and a second of the pair of closure strips comprising an extension below the respective linear interlocking strip. The linear interlocking strips configured to be released from each other by pulling the extensions below the linear interlocking strips apart using a pair of flaps extending from the closure strip extensions.

A zipper unit for a packaging bag is provided comprising a sealing zipper to seal the packaging bag in a ally sealed state. The sealing zipper is configured to be opened with the opening operation of the packaging bag. The zipper unit also comprises a locking zipper having a fit-engagement strength stronger than the fit-engagement strength of the sealing zipper. A releasing cutout portion is provided in a part of a fit-engagement body of the locking zipper. The locking zipper is configured to be opened from the releasing cutout portion. The locking zipper may be situated as the first zipper at the opening of the packaging bag to prevent the packaging bag from being opened, for example, by a child. The sealing zipper may be provided as the second zipper closest to the inside of the packaging bag and accessible by release or opening of the locking zipper.

Disclosed are embodiments of a versatile storage bag and methods of making same. The versatile storage bag may have first and second sidewalls, a double-locking closure mechanism with a first closure element extending along the first sidewall and a second closure element extending along the second sidewall, each closure element having a channel and an elongated member configured for interlocking with one another. A double-seal along three sides of the first sidewall and the second sidewall form a gusset between two seals, leaving an opening through the double-locking closure mechanism. Corner seals may be formed at the corners of the first and second sidewalls, further reinforcing the double-locking closure mechanism for an airtight and hence waterproof seal. The versatile storage bag may be made of a food-grade polyethylene vinyl acetate blend, approximately 90% or less ethylene vinyl acetate and approximately 10% or less polyethylene.

A multi-compartment resealable storage bag including a number of storage compartments. Each storage compartment has a front portion, a back portion, a first side panel positioned to connect a first side of the front portion to a first side of the back portion; a second side panel positioned to connect a second side of said front portion to a second side of said back portion, a front portion opening end and a rear portion opening end configured to cooperate to define a sealable access opening. At least an adjacent two of the storage compartments share one of the panels. Resealable closures are configured to sealably close the sealable access opening.

An example milk storage system and associated methods are described. The example milk storage system includes a milk storage bag with a body forming an inner chamber for receiving milk. The milk storage bag includes a first closure mechanism extending across the body and separating the body into a bottom section and a top section. The milk storage bag includes a preperforated section formed in both the first and second side walls of the top section of the body and spaced from edges of the top section. The preperforated section is removable from the top section of the body to form an opening extending through the top section. The milk storage system includes a hanging apparatus including a mounting section and an extension protruding from the mounting section. The extension passes through the opening in the milk storage bag to support the milk storage bag in a hanging orientation.

A closure mechanism for a reclosable bag including an elongated groove profile having two arms which define an opening to a channel, and an elongated rib profile opposing the groove profile, wherein a plurality of first segments of the rib profile alternate with a plurality of second segments of the rib profile to create a structural discontinuity along a length thereof. The groove profile and the rib profile form a first zipper, the second segments have a smaller cross-section when viewed perpendicular to the length of the rib profile than the first segments, and the second segments are longer than the first segments.

The present invention provides a device for packaging products in a foil package. The device comprises corner forming means for forming a number of folded and attached-together sections of foil material in a foil web, which sections extend outwardly in the longitudinal direction of the foil web, which sections each form a seam on the inner side of the foil web, packaging means, and transport means for transporting the foil web from a supply roll along the corner forming means and along the packaging means, respectively. The device further comprises application means for applying elongate closing elements perpendicular to the longitudinal direction of the web to the inner side of the web, wherein the application means are provided between the corner forming means and the shaping means and are adapted to apply the elongate closing elements such that the closing elements cross at least some of the seams formed in the foil web by the corner forming means.

A method for vacuum bag sealing a composite part including: using a composite bagging sheet including a first sealing surface and a first interlocking strip coupled to the first sealing surface of the composite bagging sheet; joining the first interlocking strip with a second interlocking strip coupled to a second sealing surface; and forming a sealed vacuum bag around an uncured composite part positioned between the first sealing surface and the second sealing surface.