Evaluation of Knitted Fabric-Evenness by Optical Method

• Published in: Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan) Vol. 27; no. 12; pp. T215 - T220
• Main Author: Sasada, Juichi
• Format: Journal Article
• Language: English; Japanese
• Published: The Textile Machinery Society of Japan 1974
• ISSN: 0371-0580; 1880-1994
• DOI: 10.4188/transjtmsj.27.12_T215

The relation between some factors composing a knitted fabric and its optical irregularity was investigated, and quantitative evaluation of knitted fabric-evenness was tried. Light fluctuation ratio P of a knitted-fabric is given as P=k1logS+k2F where S is the number of stitches that are pressent in a scanning light, F is light absorption that represents covering degree of the knitted-fabric, and k1, k2 are constants. According to the above equation, αS and αF can be obtained experimentally as indexes of knitted fabricevenness, As the values of these two indexes are almost coincident, we can evaluate knitted fabric-evenness by αt that is the mean of these two indexes. Knitted fabric-evenness index αt, that is obtained by optical measurement as mentiond above, is in satisfactory agreement with the degree of knitted fabric-evenness that is obtained by visual judgements. So, we confirm that this evaluation method is almost proper.