Basic configuration of
blister packaging
Background. Two basic types of pharmaceutical
blister packages exist. In one variety
the cavity is constructed of clear,
thermoformed plastic, and the lid is
formed of clear plastic or a combination
of plastic, paper, and/or foil. The other
type of package contains foil as an essential
component of both webs, and its
cavity is created by cold stretching. Figure
1 shows the basic configuration of a
blister pack.
In the early 1960s, Karl Klein designed
the first machinery for producing pushthrough
blister packaging.He did not obtain
a patent for the design because the
European pharmaceutical industry was
not very interested in it — that is, until