Closure (container)

For other uses, see Closure (disambiguation).
An aluminum bottle with a threaded aluminum screw closure

A closure is a device used to close or seal a container such as a bottle, jug, jar, tube, or can. A closure may be a cap, cover, lid, plug, liner, or the like.[1] The part of the container to which the closure is applied is called the finish.[2]

Other types of containers such as boxes and drums may also have closures but are not discussed in this article. Many containers and packages require a means of closing, which can be a separate device or seal or sometimes an integral latch or lock.

  1. ^ Nairn, J F (2010), "Closures, Bottles and Jars", in Yam, K L (ed.), Encyclopedia of Packaging Technology, Wiley, pp. 269–284, ISBN 978-0-470-08704-6
  2. ^ Smith, J. Scott; Hui, Y. H. (2008). Food Processing: Principles and Applications. John Wiley & Sons. p. 129. ISBN 9780470289976.