Your boxes made of EB-flute:
- Double flute carton made of high quality corrugated cardboard
- High stability and excellent printing properties
- Load capacity up to 32 kilograms with even weight distribution
Corrugated cardboard comes in many different types. The main distinguishing feature is the height of the respective corrugations and their distance from each other. This is also referred to as corrugation height and corrugation spacing. In general, the corrugated cardboard classes are divided into the categories mini, fine, medium, coarse and imperial flute.
While the smallest category, the so-called mini flute, has a flute height of 0.4 to 0.6 mm and a flute separation of 1.6 to 1.8 mm, the largest corrugated cardboard category, the imperial flute, has a flute height of over 5 mm and a flute separation of at least 10 mm..
This means that a fine flute has much smaller air cushions than a coarse or imperial flute. This results in a lower load-bearing capacity, but in return a more even surface. The imperial flute has a very high load-bearing capacity, but is more difficult to print on due to the larger gaps and the resulting uneven surface.
Due to the different characteristics, the different categories of corrugated cardboard have different advantages and therefore are used differently.
Corrugated cardboard with high flutes and with greater spacing have large air cushions and therefore also very high stability. Therefore, they are suitable for transporting heavy goods and are primarily used as pure transport packaging.
Smaller flutes, such as the E-flute, are preferably used as product packaging for light goods. Here they have a decisive advantage over the larger flutes: Due to the smaller air cushions in the material, the surface structure is very uniform. This factor comes into play especially when the corrugated cardboard is to be printed, which is usually the case with product packaging.
This is because dents and deformations ensure that the print image can not be printed on the cardboard without errors. On the other hand, the unevenness causes it to be deformed and not to appear as desired. But what if you need product packaging that has to have a high load-bearing capacity on the one hand and good printability on the other?
Double flute corrugated cardboard is the perfect solution for this application. As the name suggests, two single flute cartons are glued together to form a double flute carton. While the flute with the larger air cushions is used as the inner layer due to its stability and protective properties, the smaller flute is used as the outer layer to ensure good printing properties of the carton.
The manufacturing process is quite simple: both flutes are glued together with an intermediate sheet. This results in a new cardboard box, the name of which is also made up of the combination of the two flutes.
The EB-flute has a load-bearing capacity of up to 32 kg and, thanks to its pressure properties, is very well suited as product packaging for heavier goods. One example is bottle containers that need to be transported safely but presented attractively.
Another area of application are, for example, moving boxes. Here, however, the focus is not on printability, but on high stability with very low own weight. They increase the weight of the goods to be transported only minimally, but are very stable and can be stacked well on top of each other.
One of the most popular and most requested flute combinations is that of the E-flute with the B-flute. The finished product is called EB-flute.
Here, the B-flute with its flute height of 2.2 to 3.1 mm and a flute separation of 4.8 to 6.5 mm is used as a stable inner wall. The E-flute is used as a good printable outer wall due to its lower flute height of 1.0 to 1.9 mm and a flute separation of 2.6 to 3.5 mm. Both flutes are glued together with an intermediate sheet to form a single unit.
The result is a cardboard that combines the best of both flutes: high load-bearing capacity and a smooth surface that is ideal for printing.