[부직포] Characterizing Structural Changes in Point-Bonded Nonwoven Fabrics During Load-Deformation Experiments 출판일 : 2001.02.01 저자 : H. S. Kim, A. Deshpande, B. Pourdeyhimi, A. S. Abhiraman, and P. Desai 서지사항 : Textile Research Journal, Volume 71, Issue 2, 157페이지 등록일 : 2012.10.30 I 조회수 : 107 작성자 : admin |
Current efforts to establish links between processing conditions and the structure and
properties of nonwoven fabrics in general, and for point-bonded (spot-bonded) nonwovens
in particular, would be served significantly by in situ experimental visualization and
measurement of the structural changes that occur during controlled deformation
experiments. The features of a simultaneous “tensile testing/image acquisition” instrument
that can serve this critical need are described in this report. The instrument is effective in
providing quantitative measures of the orientation distribution function (ODF) of the fibers,
the bond spot strain, the unit bond repeat pattern strain, and the shear deformation of this
unit cell as a function of applied macroscopic deformation. It is also useful in determining
the failure mode as a function of the method of applying deformation to the nonwoven fabric.
These features are exemplified through analysis of a point-bonded carded nonwoven,
which is anisotropic in its fiber orientation distribution and in the geometry and distribution of
its patterned thermal bond spots.
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