抄録
Tsumugi yarns are hand-spun silk yarns produced from floss silk. In a previous study, we have introduced the truncated Polya–Eggenberger distribution to describe the variation in tsumugi yarn width. In the present study, we have applied this technique to tsumugi yarns with varying thicknesses. The results show that the width distributions in tsumugi yarns are well described by the model, independent of their thickness. Furthermore, estimated parameters related to scale factor show a proportional relationship. Thus, the width distribution in tsumugi yarn can be described by only two factors—scale and shape.