Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Assessment of the Surface Quality of the Filament-Core Ring Spun Yarns

필라멘트 링 코어사의 표면 피복 품질 평가

  • Kim, Hyung-Jin (Department of Mechanical Engineering, Graduate School Kyunghee University) ;
  • Kim, Jong-Seong (Laboratory for Intelligent Process and Control, Kyunghee University) ;
  • Huh, You (Department of Mechanical Engineering, College of Engineering, Kyunghee University)
  • 김형진 (경희대학교 대학원 기계공학과) ;
  • 김종성 (경희대학교 지능공정 및 제어 실험실) ;
  • 허유 (경희대학교 공과대학 기계공학과)
  • Received : 2009.11.12
  • Accepted : 2010.02.23
  • Published : 2010.04.30
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Abstract

To evaluate the surface quality of ring core spun yarns, we set up a quality measurement system that operated on the basis of a CCD camera along with specific software programs that recognised the surfaced core filaments. The acquired images were transformed to binary states and filtered through a moving window. By defining a quantitative index by means of the number of defects per length of the specimen, the effects of the processing variables such as production speed and traveller mass on the surface quality of core spun yarns were investigated. Results demonstrated that the new measuring system could be applied effectively to assess the core coverage of yarns. There existed some optimal levels of yarn production speed and traveller mass that led to a minimum occurrence of the surface defects of core spun yarns.

Keywords

References

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