Corrugated paper longitudinal die-cut rupture fault handling skills

If there is poor fiber toughness and strength of the paper in the corrugated cardboard, when the die is longitudinally die-cut, cracks will occur at the indentation. If the strength of the indentation is reduced, or the indentation groove on the iron plate is removed, the indentation will be Failure to reach the required depth will affect the speed of the box or cause deflection.

The solution is to paste a width of about 8 mm on both sides of the indentation knife, the same length as the indentation knife, and the thickness of the sponge to reach the knife edge. When the indentation is made, the sponge is pressed against the corrugated cardboard with the indentation blade, and the cracking phenomenon no longer occurs.

Chongqing Packaging Technology Association