A square carton body can still have a closure that catches. The top of the glue flap may enter a dust flap’s moving space, or the tuck flap may meet a doubled layer of board. Printers and packaging converters should trace the contact from the folded sample back to the approved dieline.
Mark the first contact
Close the carton gently and identify the parts that touch first. Mark the contact on a photograph and on the matching dieline revision. This directs the review to one area instead of changing the complete carton size.
Keep flap clearance and bonding area separate
Shortening or tapering a glue-flap tip may improve clearance, but it also changes the bonding area. Confirm the converter’s gluing method and machine requirements before selecting a flap width. Show the glue area, cut contour and crease as separate information.
Check caliper and folding sequence
Equal grammage does not imply equal board thickness. Coatings and overlapping layers also affect closure. Review a sample made from the intended stock and finish, following the production folding sequence. Clearance on a flat drawing alone does not establish clearance in a folded carton.
Issue a controlled dieline revision
Identify the tip, its current dimension and the requested change. Apply an approved change to every matching carton position. Review flap motion, body alignment and bonding area together; geometry changes cannot automatically resolve adhesive or machine-setting faults.
Information for a die order
- Dimensioned dieline and revision code
- Actual board and finish
- Photograph marking the contact
- Folding sequence and gluing method
- Sheet size, positions and press reference
Send your drawing and material details for the carton box cutting dies.
