Abstract
Paper, which is used most often as a base material for packaging, gradually fatigues
or degrades during long-term preservation with or without mechanical loading1,2).
As a preliminary of study on fatigue of paper 3), paper specimens were periodically
extended up to various tensile load using a standard tensile tester and was also
continuously folded under various tensile load using a MIT folding endurance tester,
and some mechanical properties of these fatigued papers were examined in this
study.
