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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Development of Automatic Analysis System for Water Repellency of Packaging Paper -Automatic Measurement of Water Repellency Based on KS M 7057-

포장지의 발수도 자동 해석 시스템 개발 -KS M 7057에 근거한 발수도 자동 측정-

  • 김철환 (경상대학교 농업생명과학대학 임산공학과) ;
  • 최경민 ((주)미래로시스템 기술연구소) ;
  • 강진기 (경상대학교 농업생명과학대학 임산공학과) ;
  • 박종열 (경상대학교 농업생명과학대학 임산공학과)
  • Published : 2003.03.01
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Abstract

The test results for water repellency of paper and paperboard according to KS M 7057 can readily be influenced by an operator's bias. In order to discard such bias, the automatic analysis program of water repellency was developed based on different shape features of a liquid trace formed on a specimen. That is, the shape of a liquid track flowing down on the specimen with an angle of $45^{\circ}$ was evaluated according to width variation between head and tail of the trace($S_{Hr}$), uniformity of a liquid flow($S_{d}$), length of long traces($L_{SHr}$), eccentricity of liquid traces($E_{i}$), and then was recognized as a specific degree of water repellency. Finally, the automatic analysis system of water repellency based upon KS M 7057 made it possible to readily measure water resistance of paper and paperboards classified into R0 to R10.

Keywords

References

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