In DIN 55405 "Packaging - Terminology - Terms", No. 10.87 defines the blister pack as a "transparent pack consisting of a thermoformed plastic film and a flat base".
The term "blister" was derived from the word "blister". "blister-packaging process" for the production of such packaging, which enables a clearly visible presentation of the packaged goods. The products are presented on a flat cardboard, carton or plastic base, usually printed with information. In the case of pharmaceuticals, the back of the so-called push-through packaging is often made of aluminium foil, which supports safe removal and, if necessary, child safety.
The Visible packaging obtains its blister contour by thermoforming plastic film (e.g. PVC, PET), which is generally dimensionally stable after cooling. It is attached to the base by sealing, stapling, gluing or clamping.
Sealed packs, in which the visible packaging is firmly connected to a plastic base or a coated and therefore sealable cardboard base, also provide better protection against Manipulations.
With Clamp packaging the edges of the plastic upper section are bent around the rear wall. In a variation on this, the Sliding blister Two opposite edges of the transparent packaging are moulded into grooves into which the back is inserted. A Folding blister on the other hand, consists of a plastic blank that is folded up and closed after filling.
Attractive product presentation
In addition to the benefits for the consumer, blister packs have the following advantages Goods clearly visible The advantage for retailers is that they can be easily presented on standardised holders thanks to the Euro perforation and make stocktaking easier. While customers often complain that they are difficult to open, shoplifting is made more difficult.
In order to achieve better disposal, plastic blisters made of one material are preferable. So-called Cardboard blisterThe two-part, interconnected cardboard packaging, which is usually fitted with a window and a Euro hole hanger, is used as an ecological alternative.
[infotext icon]In our series "Standardised terms" we take a closer look at some (frequently misused) technical terms in the packaging industry.All articles in the series:
Packaging standardisation - development and application
Standardised terms - Part 1: Bag or pouch?
Standardised terms - Part 2: Carton or box?
Standardised terms - Part 3: Can or tin?
Standardised terms - Part 4: Steige or Stiege?
Standardised terms - Part 5: Crate, box or harass?
Standardised terms - Part 6: Drum or barrel?
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