Effect of Blade Tip Profile on Peel Cohesion Strength of White-Coated
Paperboard Wedged by Center Bevel Blade

Abstract

The main objectives of this study are to reveal the delamination characteristics of a paperboard during a pushed shear process by a crushed blade tip and to determine an easy method of estimating the delamination strength of the paperboard. Two types of paperboard, with different interbond strengths, were compared with respect to the results of the peel cohesion test of a wedged end-surface and the bending moment resistance of a creased line. The obtained results show that there is a positive correlation between the peel cohesion strength of the paperboard and the bending moment resistance of the creased line; a certain burr height on the crushed blade tip affects the peel cohesion strength on the wedged end-surface of the paperboard.