Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Evaluation of Reliability of Automatic System for Measuring Sizing Degree by Basis Weight Variation of Paper

종이 평량의 차이에 따른 자동 사이즈도 측정 시스템의 신뢰성 평가

  • Lee, Ji-Young (Dept. of Env. Material Sci./IALS, Gyeongsang National University) ;
  • Kim, Chul-Hwan (Dept. of Env. Material Sci./IALS, Gyeongsang National University) ;
  • Lee, Ji-Young (Dept. of Forest Products/IALS, Gyeongsang National University) ;
  • Nam, Hye-Gyeong (Dept. of Env. Material Sci./IALS, Gyeongsang National University) ;
  • Lee, Gyeong-Sun (Dept. of Env. Material Sci./IALS, Gyeongsang National University) ;
  • Jo, Hu-Seung (Dept. of Env. Material Sci./IALS, Gyeongsang National University) ;
  • Park, Hyung-Hun (Dept. of Env. Material Sci./IALS, Gyeongsang National University)
  • 이지영 (경상대학교 환경재료과학과/IALS) ;
  • 김철환 (경상대학교 환경재료과학과/IALS) ;
  • 이지영 (경상대학교 임산공학과) ;
  • 남혜경 (경상대학교 환경재료과학과/IALS) ;
  • 이경선 (경상대학교 환경재료과학과/IALS) ;
  • 조후승 (경상대학교 환경재료과학과/IALS) ;
  • 박형훈 (경상대학교 환경재료과학과/IALS)
  • Received : 2014.05.08
  • Accepted : 2014.05.21
  • Published : 2014.06.30
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Abstract

Reliability of the novel automatic system capable of measuring both St$\ddot{o}$ckigt sizing degree and contact angle at a time was evaluated through the calculation of its repeatability and reproducibility based on TAPPI Standard Method T 1200. As the basis weight of paper specimen increased, the repeatability and reproducibility of the automatic system became more improved than those from Hercules sizing test and contact angle test designated on TAPPI Standard Method T 530 and T 558. The more improved repeatability and reproducibility implies that a single tester can obtain the similar results under similar test conditions in spite of repetitive testing using the automatic system, and likewise that multiple testers can respectively reproduce similar data without big variation from the same paper specimen using the automatic system. In conclusion, this study is greatly meaningful in having developed the world's first automatic system to measure both St$\ddot{o}$ckigt sizing degree and contact angle simultaneously with excellent repeatability and reproducibility.

Keywords

References

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