Blister pack

Also referred to as blister (English, bubble, bubbles ') internally in the trade - - Under a visual packaging refers to a product package that allows the customer or buyer to see the packaged article.

Construction

The product is in this case presented to a usually printed with information Papprückwand and fixed with a plastic film molded article. In some blister packs, there is also the rear wall of plastic film, for drugs of an aluminum foil.

A distinction is made between welding packaging, packaging clamping and stapling packaging:

• When welding packaging film surface and film back wall are joined together by heat, which simultaneously represents a goods label.
• When clamping the edges of the foil packaging front part are bent around the Papprückwand by heating the plastic.
• At issue packaging foil front and Papprückwand are interconnected by means of staples.

The shape of the Blisterkontur done by thermoforming technology.

In addition to the controversial Benefits visibility packaging has advantages for the retailer. They can usually be pushed onto standardized brackets ( Euro slot), which facilitates the presentation and inventory. The large packaging small items of shoplifting more difficult.

Disadvantageous from the viewpoint of environmental protection is the high packaging waste, especially for small objects and the poorer LCA of plastic over cardboard. Blisters are therefore controversial.

Other disadvantages arise primarily for the customer: accessories can hide in inner cardboard inserts, so only given a partial transparency. The packaging is mostly unusable after first opening so that a return of goods is difficult. Furthermore, the opening created by completely made ​​of plastic blister packaging sometimes extremely difficult, since the front and back are welded together, as a rule, and a clean and easy opening without tools is very difficult. It can also come when you open the blister at cut edges injury. After opening the packaging remains often take a larger volume than in packed condition. This has an obstructive effect on the disposal. Because of these disadvantages, especially in the handling of such packages is rather disliked by the customer.

According to a press release dated 3 November 2008, Amazon.com decided to offer some products now available in an alternative packaging and train to train to move some more products to more customer-friendly packaging to counteract the blister caused by " frustration " of the end customer.

Tablets packing

Widespread use of blisters the packaging of tablets. Such a package is also called blister pack. The cover sheet of a non-child resistant blister strip is usually made of hard aluminum foil and is 20 microns thick. An arrangement of the tablets in individual wells of a plastic or aluminum foil ( cavities), which is sealed with the aluminum foil has several advantages over glass or plastic vials. It is hygienic, undesirable influences such as high humidity (depending on material ) or dirt are excluded and very much is the simple recognition of the remaining number. Special Blister allow a picture of the intake schedule on the packaging. For example, the packaging of many birth control pills is printed with days of the week. This makes it not only possible to control the accomplished intake but also reliably assign different tablets on days of the menstrual cycle.

The drug safety is not supported well by a lack of standardization of the incomplete mark on the blisters. Once a blister from the outer packing is removed, the marking is no longer visible or completely fall safely. This is true regardless of the system of labeling on the packaging point of view.

To improve drug safety ( better therapeutic safety ) is used as part of the Pharmaceutical Care of the so-called pharmaceutical blister. Here, almost the entire drug therapy administration time will be securely packed.

In the field of clinical research so-called electronic blister (electronic blister) are used. Here are current -carrying conductor paths as printed on the cover sheet that the wiring paths lead through the Ausdrückbereiche a tablet in the blister. This "electronic blister" is connected to an electronic system which is disposed in a housing. Once a tablet is expressed from the blister, the conductor tears irreversible. This change of state is detected by the electronics and processing (for example, display in a display). This invention is based on a patent application from 1983 back (DE 33 35 301 A ). A further development of this system can be found in the published patent application DE 10 2004 060 213 A1. Electronic blisters are also used in addition to the applications in clinical research to improve compliance.