13/11/2024
Polycert certification standard EN 15343Sustainable production and full transparency of the recycling process, certified by Polycert in accordance with EN15343.
3 features
of bubble envelopes
that are worth knowing
The bubble envelope was invented in the 1970s.
Its origins preceded the invention of bubble wrap, which was used in combination with PE-coated paper as a cushioning layer.
After more than 50 years, the bubble envelope is still a popular choice as protective packaging for shipping lightweight items. While the overall appearance has not changed, it has gained a few additional features over the years depending on the market or regional postal requirements. In this article, I will talk about elements of the bubble envelope for which the sense of use may not be clear to all users.
Trapezoidal flap
If the envelope is voluminously filled, the truncated/trapezoidal flap is easier, more aesthetically and safely sealed. In this case, the flap fits and aligns more easily with the item inside and fits better to the envelope, making it less likely to peel or tear.
Straight flap
Previous manufacturing technologies and materials may have caused the following at the point of impact of the heater:
a) the hotemelt covering tape may have pulled away from the flap, glue and caused difficulties in sealing the envelope correctly,
b) in addition, too much glue may have become caught on the envelope cutting knife and caused machine stoppage. This problem does not occur with the TAP Telion.
Additional tape on the envelope
The position of the transparent tape on the envelope is intended to allow the flap to be sealed in place of the tape and opened again without damaging the flap and the envelope. This unique solution was implemented exclusively for the German market, in the context of the national requirements of Deutsche Post. The aim is to be able to check what is inside the envelope and whether it contains the declared contents.
Holes in the envelopes
TAP Comebag® bubble envelopes are produced with holes as standard. These holes are used to attach metal or plastic clips to close the envelope and reopen it without destroying the flap, e.g. for inspection purposes. This is how books are sent out in the German market, for example. Postal clips are also used for other mailing bags.
The described features are among the many that find their usage in bubble envelopes.
You will learn about more benefits of TAP Comebag® envelopes in future articles.
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