Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

A Study on the Evaluation of Evenness of the Areal Density of Nonwoven Fabrics(I)

부직포의 균제도 평가에 관한 연구(I)

  • Jeong, Sung Hoon (Department of Textile Engineering, Hanyang University) ;
  • Hong, Cheol Jae (Department of Textile Engineering, Soongsil University) ;
  • Kim, Si Hwan (Department of Textile Engineering, Hanyang University) ;
  • Song, Suk Kyu (Department of Textile Engineering, Hanyang University)
  • 정성훈 (한양대학교 공과대학 섬유공학과) ;
  • 홍철재 (숭실대학교 섬유공학과) ;
  • 김시환 (한양대학교 공과대학 섬유공학과) ;
  • 송석규 (한양대학교 공과대학 섬유공학과)
  • Received : 1998.05.14
  • Published : 1998.10.31

⟨ Previous Next ⟩

Abstract

Image analysis method was applied to evaluate the evenness of various nonwoven fabrics. Binder-bonded nonwoven fabrics were used for this research. Images of nonwoven fabrics were scanned and stored into 256 gray scale system. At first, the effects of scanning condition on evaluating the evenness of areal density ($g/m^2$) of nonwoven fabrics were investigated. A coefficient of variation of gray values was used as an evaluation factor. In previous evaluation, the variation means the variance of weight in unit area. In this study, however, it means the variances of gray values obtained from the pixels on the fabric images. This research verified that the coefficient of variation of gray values was proper factor to evaluate the evenness of areal density of nonwoven fabrics.

Keywords