What is a groove or a zip?
Grooved, scored or pickled?
In order to fold thicker cardboard, it needs to be processed to avoid cracking or breaking.
This can be done in different ways:
- Rilla
- Ritsa
- Biga
groove
A crease is a cut-out groove, a chamfer on the inside of the cardboard that allows it to fold at 90 degrees.
There are other variations, such as the U-groove. It is used to give the cardboard a flexible hinge, for example for a folder or binder.
Ritsa
In contrast to the groove, a score is made in the outside of the cardboard. It is a cut line that does not go all the way through the cardboard but leaves enough material to hold the construction together.
Big
A crease is a sharply pressed groove in the material that allows it to be folded. The procedure for creasing is the same as for scribing, but the tool used is not as sharp.