What is a Long-Cap?
What is a LongCap (LC) and how are they made? The LongCap is an aluminium screw cap closure and is deep-drawn from offset-printed aluminium sheets that are 0.22 to 0.24 mm thick.
The deep-drawing takes place in two steps, in case of LC 30 x 60 mm in three steps. In the process, the aluminium is stretched so much that a print design on the side would no longer be recognizable.
That’s why a special side print method, similar to that for tubes, sleeves, etc., is used. Particular attention is given to the quality of this side print, since it also serves as an advertisement later when the product is on the shelf.
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