Folding and tear control
Creasing and perforation rules for clean folds and controlled tear lines
The quiet lines in a cutting die are often the most important. A box can cut perfectly, but if the crease is wrong the fold cracks; if perforation is wrong the user cannot tear it cleanly.
Where this die fits
Creasing compresses board without cutting it. Perforation cuts at intervals to create a controlled tear line. Both depend on material thickness and end use.
When board weight, grain direction, lamination and press pressure are known, folding quality improves. Pharma boxes, promo cards and hanger packaging benefit from this detail.
- Carton box creases and fold lines
- Tear-off coupons, hanger cards and inserts
- Packaging perforation and easy-open areas
- Multi-up dies needing repeat fold behavior
What we check before production
The drawing is read as a production file, not just a shape. These checks help prevent delays on press.
- Creasing rule height and channel width
- Perforation tooth-gap ratio
- Grain direction and cracking risk
- Press pressure and rubbering effect
Quote information
A clear quote is easier when these details arrive together. A file is helpful, but a measured sample can also start the conversation.
- Board weight and surface finish
- Folding or tearing purpose
- Crease/perforation separation in drawing
- Quantity and machine type
Common questions
Q·01 Is creasing a cut?
No. Creasing compresses the board to create a fold line without separating the material.
Q·02 How is perforation ratio selected?
Tear ease and product strength are balanced.
Q·03 How do you reduce crease cracking?
Board weight, grain direction and channel width are selected together to reduce cracking.