Channel Width
Polymer or phenolic channels affixed to the cutting plate receive impression rule blades to create controlled delamination along paperboard fold lines. In package converting, matrix creasing establishes precision creasing channels on flatbed or cylinder die-cutters. Channel width and depth are selected based on board caliper and steel creasing rule thickness.
The system applies to solid bleached board, folding boxboard, and micro-flute corrugated substrates.
Delamination Control
Press impact forces paperboard down into the channel matrix, inducing controlled shearing between internal fiber plies without breaking outer surface coatings. Internal delamination creates a flexible hinge that reduces folding resistance during carton assembly. Self-adhesive matrix strips feature locator channels that slip over creasing rules for automatic centering on the cutting plate.
Accurate channel alignment prevents off-center creases that cause carton bowing and panel misalignment on automated packaging lines. Phenolic matrix materials withstand high press impression forces over extended production runs without channel deformation.
Crease Reliability
Uniform channel dimensions maintain constant crease geometry across all carton panels on multi-up die layouts. Clean crease formation prevents surface coating fractures and liner cracking during ninety-degree folding. Consistent crease stiffness reduces jam rates on high-speed filling machinery.
Selection tables match matrix channel dimensions directly to paperboard caliper and fiber orientation.
