15

Packaging closures

A. Emblem,     London College of Fashion, UK

Abstract:

This chapter considers the important functions of closures, and reviews a range of different closure types. Closure material properties are not repeated here, and it is necessary to refer to the relevant chapters throughout the text. Specialist closure functions such as child resistance, tamper evidence and dispensing features are covered.

Key words

screw thread

push-fit

tamper evidence

child resistance

crown cork

lever lid

wad

liner

linerless closure

lug closure

peelable lid

ROPP

shrink band

flip top closure

15.1 Introduction: the role of packaging closures

A closure can be defined broadly as any method for closing a pack so that the product is properly contained ...

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