| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Relaxation Characteristics of Creasing Process of Scored Paperboard for Liquid Container |
| Author(s) |
Shigeru Nagasawa, Takaomi Nagumo, Azusa Sakamoto, Kazuki Umemoto |
| On-Site Speaker (Planned) |
Shigeru Nagasawa |
| Abstract Scope |
A knowledge of dynamic bending moment resistance acting on a hinge, which is folded on a creased line, is important in order to adjust mechanical conditions for boxing a paperboard. In this work, dynamic creasing characteristics of liquid-container-purpose paperboard of basis weight 313 g/m<sup>2</sup> were investigated, when the holding time of a position of creasing knife was varied with the specified indentation depth. In the scoring process, the time-dependent behaviors of reaction force and the permanent scored depth were experimentally investigated for the elapsed time of 100 seconds. When using the paperboard scored with the specified indentation depth and varying the holding time, the bending moment response at a 90 degree folding test was investigated. In this folding and unfolding process, the effect of holding time at the scoring process on the bending moment resistance was analyzed, especially for characterizing the initial gradient of stiffness. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |