Resealable packaging

Methods

• Screw caps or other container closures with similar functions
• Hook and loop fasteners
• Pressure sensitive adhesive strips and tapes
• Interlocking plastic strips such as found on Zipper storage bags
• Zip packs: resealable packaging with a zip feature that keeps the container airtight. These packs are designed with an ergonomical clip which functions like a zipper but is airtight. These products feature flanged interlocking profiles that create a reliable seal when pressed together. Ziploc and Zip-Pak are manufacturers specializing in these products, the latter employing a slider to open and close the bag. The zip component of the packaging is supplied on a continuous roll, and is inserted between the upper and lower webs of the plastic film provided with the packaging. The zip is bonded to the packaging by a heat activated adhesive that is pre-applied to the backing of the zip. The first resealable packaging with a zipper was licensed in the United States by Minigrip® in 1954.
• Plastic wrap used to cover opened containers
• Lid
• Twist ties
• Hook-and-loop fasteners to reattach a flap or lid