Blister Packaging Application

What is a blister pack? You can see it in any store, for example, such packages usually sell batteries or stationery sets. Actually blister - a transparent portion made of a polymer film, which embedded products. In most cases, after that it is mounted on a cardboard backing. Here is the simplest and most familiar to us blister packaging. However, its capabilities are much wider. For example, the blister pack is widely used for packing drugs. Instead of cardboard as the substrate used the foil.

In addition, the blister packaging is not always soldered to the substrate "tightly". For many types of goods more convenient to use bilateral split blisters on the latches, which can be repeatedly opened and closed. Another option - blister packing with bends, which can be easily removed from the substrate. And the blisters can be seal, make color and even be metallized coating. In general, the possibility of such packaging is almost limitless. Blister packaging is made by vacuum forming of thermoplastic materials. In Depending on the polymer blister can turn transparent or opaque (the latter is often necessary for the production of medicines).

The very process of forming is as follows: the polymer film is heated to the elastic state in a special machine, then her bottom matrix is supplied, and on top creates a vacuum. Because of the pressure drop film adheres to the matrix and takes the desired shape. If the blister packaging sealed, then this procedure is necessary to advance the film, not yet past the molding. By the way, to print on the cardboard substrate is also subject to special requirements. The paint should not "swim" when applied thermo varnish plastic parts for soldering and subsequent heating. Blister packaging can be made from films of different thicknesses, which allows its use for different types of goods. Thus, the fragile products can be manufactured Blister increased rigidity, which reliably protects it from damage.