Reduce Costs Without Cracking

A heavy crease, about 3mm wide, is pressed into the board before folding to assist with the prevention of cracking along the fold in papers & boards over the weight of 160gsm. Creasing is especially important if the job is printed over the folded area.

There are various methods in producing the crease, but the two most popular are detailed below.
The most reliable is using a Heidelberg cylinder, which presses the crease into the board.  Although you achieve a quality crease and it would be recommended for anything over 250gsm in weight, it is expensive. A die needs to be produced, the sheets run slowly through the machine and there is the separate process of folding.

A Tri-crease can be used as an alternative.
This is an attachment which fits onto the folding machine, allowing a crease and fold to be produced in line and will run as fast as the folding machine. Although a more cost effective process, there are limitations in the weight of material that’s suitable, usually up to 200-250gsm.

So next time you think a job needs creasing... ask yourself,
"Can I get by with a Tri ?"