Zipper storage bag
A zipper storage bag, slider storage bag, zipper bag, ziplock bag, zip-lock bag, ziploc bag, or zippie is an inexpensive flexible rectangular storage bag, usually transparent, made of polyethylene[1][2] or similar plastic, that can be sealed and opened many times, either by a slider, which works in a similar way to a zip fastener, or by pinching together the two sides of a mechanical sealing mechanism with one's fingers. The bags are made in many sizes; a typical small size is 1.5 by 2.5 inches (3.8 cm × 6.4 cm), and a typical large size is 9 by 12 inches (23 cm × 30 cm). Material thickness (gauge) varies; smaller bags are typically 40 to 45 μm.
Many such bags are used to contain foodstuffs, such as sandwiches but not cereal and freezer storage. [clarification needed] Single and multiple small items for sale are often packed in small zipper bags for convenience and visibility.
Several types of reclosable features are available for plastic bags.[3][4] Sometimes other types of bag, such as a cloth bag for toiletries fitted with a conventional zip fastener, are described as zipper bags.[5]
History
[edit]One bag was patented by Robert W. Vergobbi on May 18, 1954.[citation needed] In the same year, Minigrip licensed them as pencil bags. The zipper storage bag's most recognized function was not realized until 1957, when a fifth-grader named Robert Lejeune demonstrated that the bag could also be used safely as a food storage device.[6] Eleven years later, in 1968, Dow Chemical Company began marketing them under the name Ziploc. Widetrack ribs were added in 1982, clicking zippers in 1993 and color in 1997.[7]
See also
[edit]References
[edit]- Yam, Kit L. (2009). The Wiley Encyclopedia of Packaging Technology. John Wiley & Sons. ISBN 978-0-470-08704-6.
- ↑ "Polyethylene (PE) Plastic". UL LLC. January 4, 2016.
- ↑ "Ziploc® Brand Freezer Bags". SC Johnson & Son, Inc. Retrieved 4 January 2016.
- ↑ US6962439B2, Tahiri, "Leak resistant tamper evident reclosable plastic bag", published 2005
- ↑ US3473589A, Gotz, "Plastic bag", published 1967
- ↑ "Ten minute zipper bag". Hooray Design Blog. August 1, 2011. Archived from the original on April 26, 2012. Retrieved December 31, 2011.
- ↑ "Bag for storage and removal of oxygen",
- ↑ Macneal, David (20 April 2015). "The Surprisingly Complex Design of the Ziploc Bag". Wired. Retrieved 20 April 2015.
Further reading
[edit]- Cockerham, Rob (23 March 2010). "A Fascinating Gallery of Ziplock Seals". Cockeyed.com. Retrieved 12 July 2025.
External links
[edit]
Media related to Zipper storage bags at Wikimedia Commons
