Development of On-line Bending Stiffness Tester (2) - Lab experiment -

종이 휨강성 자동 측정방식의 개발과 그 이용 (2) - 실험실 측정 -

  • 서영범 (충남대학교 농업생명과학대학 임산공학과) ;
  • 정석면 (신호제지(주) 중앙연구소) ;
  • 정태영 (신호제지(주) 중앙연구소)
  • Published : 2007.12.31

Abstract

A simple method of on-line stiffness measurement using the wrinkling behavior of paper web between two rollers was presented. The theory and the equation were presented, and lab and mill tests were executed. We called the stiffness measured by Taber tester as 'Taber stiffness', and by tension wrinkling measurement as 'wrinkle stiffness', respectively. Lab experimental results showed Taber and wrinkle stiffness are almost equivalent. In the mill experiment, we could measure the stiffness in the wet state and in the dry state. The dry wrinkle stiffness was close to the taber stiffness, but the wet wrinkle stiffness was much lower than the corresponding taber stiffness.

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