Hose packaging
Tubular packaging is mainly used for still beverages (non- carbonated beverages such as milk , juices and wine ), portion packs ( mustard , ketchup ) as well as sausage products, vegetable preparations and ready-made soups.
In the case of beverage packaging, a plastic tube made of polyethylene (PE) sterilized with ethylene oxide is filled with the beverage without it coming into contact with oxygen. In the simplest form, as with tubular milk , the packaging consists only of the tube; there is also the so-called bag-in-box system, in which the bag is in a cardboard box with a fixed spout.
In the case of systems with a screw cap, the tubular bag contracts so that the outflowing volume does not have to be replaced by air, which prevents contact with oxygen and germs from the air. Bag-in-box systems therefore guarantee a slightly longer taste stability than serving from bottles or cardboard packaging.
The tubular bag packaging also includes pouches, aluminum-reinforced plastic tubes and bag-in-box systems, in which a cardboard jacket stabilizes and protects the tube.
An aluminum coating on the tubular bag envelope reduces the exchange of flavorings and atmospheric oxygen through the plastic of tubular bag packaging. The oxidation of ingredients in the drink is slowed down. In addition, aluminum foil offers protection against quality-reducing ultraviolet radiation and light.
The length of a tubular bag packaging is primarily determined by the development of the cylinder during printing. Since rotary printing is used here , the length of the print motif is always an integral divisor of the (standardized) gravure or flexographic printing cylinder.
development
The sales of tubular wine in France quadrupled between 1996 and 1998. In 2006 it reached a volume of 1.4 million hl. Rising transport costs as a result of rising energy prices and truck tolls make lightweight transport packaging more attractive.
On the other hand, hoses are being displaced by other packaging. So were z. B. milk hoses since the 1960s as an inexpensive alternative v. a. widely used for regional milk, but unpopular with consumers due to its susceptibility to packaging damage. In addition, the cup containers that held the hoses were too short in Germany. The switch to more stable multilayer films in the 1980s was able to replace it with the Tetra Pak and comparable cardboard packaging v. a. no longer stop in Central Europe.
Web links
Footnotes
- ↑ Verpackungsrundschau.de : Biergruppe Castel takes over bag-in-box provider. Retrieved July 5, 2019 .
- ↑ Bagged milk - what happened to the milk tube? November 27, 2015.