Abstract: The present disclosure relates to a closure for a reclosable package wherein the product side flanges include opposing air pockets thereby allowing a user to more easily grab the product side flanges or the package walls. In a second embodiment of the disclosure, the opposing air pockets are adjacent to the interlocking elements of the closure. In a further aspect of the disclosure, a closure includes a small sack or air or other fluid adjacent to the closure profiles. When closed, the closure creates a leak resistant configuration. By pressing the air sack, the user separates the closure profiles.

Abstract: The present disclosure relates to a closure for a reclosable package wherein the product side flanges include opposing air pockets thereby allowing a user to more easily grab the product side flanges or the package walls. In a second embodiment of the disclosure, the opposing air pockets are adjacent to the interlocking elements of the closure. In a further aspect of the disclosure, a closure includes a small sack or air or other fluid adjacent to the closure profiles. When closed, the closure creates a leak resistant configuration. By pressing the air sack, the user separates the closure profiles.

Abstract: A method of sealing together end portions of zipper profile lengths 12, 14 uses a heated pin 18 which is inserted into the end portions of the joined profile lengths to form a cavity 32 which is closed by subsequent application of pressure by a pressure element 28. The method avoids the use of heated crushing devices and ultrasonics.

Abstract: The bag has an elongate opening 20 in a front panel 10 of the bag. The opening 20 is openable and reclosable by a zipper 22 located in the opening 20 and consisting of first and second profiles, having interengagable male and female formations, and a slider for engagement and release of the formations. Each profile further has a flange which is secured to the front panel of the bag adjacent the opening 20. The flanges extend in opposite directions from the interengagable parts of the profiles. A closure sheet 60 covers the zipper to form a tamper-evident feature and is releasable along a line-of-weakness 64.

Abstract: The apparatus comprises a rotary turret 18 having circumferentially spaced grooves 30a, 30b, 30c for receiving pre-cut lengths of zipper 58 consisting of first and second interengageable profile strips. Sliders 46 for engaging and re-engaging the profiles are mounted on the zipper lengths by a rotary slider applicator 42. A web 12 of plastics material is fed beneath the turret 18 and receives the zipper lengths which are secured to the web by a heated sealing bar 60. The web with zippers attached is fed to a form-fill-seal machine 20 on which the web is formed into individual bags which are filled and separated from one another.

Abstract: The bag 1 has an opening 20 which is reclosable by way of zipper profiles 24, 26. A spout 30 is formed from flanges of the zipper profiles and folds out from the inside of the bag for use in dispensing its contents. After use, it is folded away and the bag sealed by the zipper. Zippers useful in making the bag are also disclosed (FIGS. 4 to 7), one being a slider zipper. A method of making the bag and apparatus for carrying out the method are disclosed (see FIGS. 8 to 16), as is incorporation of the process in reel-to-reel, pre-made bag and form-fill-seal types of process.

Abstract: A reclosable bag (22) has a top seal (26) and a reclosable zipper (14). A tear string (16) passes through the top seal (26) and has a free end which can be grasped to open the top seal. The bag is made using cross-web technology with the tear strings (16) being attached to the lengths of zipper and the free ends of the strings being concertinaed in the top seal zone.

Abstract: The apparatus applies a transverse zipper strip to a film (10) moving continuously in a direction (12). A continuous belt (18) is driven by sprocket wheels (16a, 16b) and carries upper seal bars (22a, 22b, 22c) which receive pre-cut lengths of zipper at station (3). The pre-cut lengths are attached to the film (10) by a lower seal bar (24) which moves towards the film (12) at position A when an upper seal bar carrying a zipper strip is located directly above the film. Sealing takes place as the upper and lower seal bars move at the same speed as the film (12) from position A to position B where the zipper is released from the upper seal bar (22c). The process then repeats for the next zipper strip length.

Abstract: A plastics bag has at least one seal (34, 36) extending parallel to the mouth of the bag to close the sides. Preferably, a reclosable zipper seal (36) is provided below a top seal (34). A novel tag is provided, secured to the zipper seal (36) and extending through the top seal (34). The tag (11) is generally M-shaped in cross-section with its outside legs secured to the seals and with an inner tuck which the consumer can withdraw from the mouth of the bag and break open to make an access hole through the seal or seals into the interior of the bag to facilitate full opening of the mouth of the bag. Methods of manufacturing such bags are also described, particularly for use with form-fill-seal machines.