A creasing channel matched to actual board thickness
Creasing counterplate and pertinax planning
A crease rule does not create a controlled fold by itself. Its counter channel must be matched to board thickness, rule thickness and fibre behaviour. The goal is not merely a visible line: it is a carton that folds without cracking and a repeat job whose setup can be reproduced.
When is a dedicated counter considered?
A short job with a few creases and a multi-up repeat carton with dense crease geometry do not need the same preparation. A correctly sized adhesive matrix may suit the first case. A form-specific phenolic counter can place many channels together and preserve the relationship for repeat runs.
- Folding cartons in coated, kraft or laminated board
- Closely spaced or intersecting crease lines
- Multi-up and frequently repeated work
- Locking structures where assembly quality is critical
How is channel geometry established?
Channel depth starts from measured board caliper. Channel width starts from board thickness and crease-rule thickness. These are not blind recipe values: grain direction, moisture, lamination and press pressure influence the proof result. The production note should therefore use measured thickness where possible, not nominal grammage alone.
- Measure board caliper at several points
- Record crease-rule thickness and height
- State grain direction and surface finish
- Confirm with a clean folded proof
What should accompany a quote request?
Send the die drawing with a board sample or an exact material specification. Press model, sheet size and repeat profile help determine whether matrix, phenolic counter or another approach should be assessed. İkram Lazer evaluates the counter approach for the job; one counter material is not promised for every application.
- AI, PDF or DXF structural drawing
- Board grade and measured thickness
- Press, sheet and number-up information
- Expected run and repeat frequency
Frequently asked questions
1Is a phenolic counter required for every job?
No. A correctly sized matrix may be enough for a short run with few creases; a form-specific counter is considered when setup time and repeatability matter.
2Is grammage enough to select the channel?
No. Boards with the same grammage can differ in actual thickness, fibre structure and coating.
3Can a counter be assessed for an existing die?
Yes, when the drawing, die condition and press relationship can be verified.