Effect of scoring condition on creasing characteristics of double-wall corrugated board

Abstract

A prototype-rotary creaser was experimentally applied to an AB double-wall corrugated board to reveal creasing characteristics of the corrugated board and mechanical factors on failures of its height wise crease. From this work, the followings were obtained. (1) There are appropriate combinations of pre-creaser gap and main-creaser gap for restricting the occurrence of failures of an inside liner; (2) The pre-stage creasing for crushing corrugated medium was severely necessary for reducing the failures of the inside liner and performing the high precise position of bending. (3) Dependency of water content and feed velocity on the failures of the inside liner was revealed.