抄録
The purpose of this article is to discuss the elastic property of knitting yarn under a small tension. I shall study the relation between the elastic property of yarn and that of wool. I advance the theory that the property of knitting yarn is represented by the density of the elastic energy per mass.
Next, I consider the problem of the distribution of the curve of the density of the elastic energy in the same sample. In this case we consider the relation between the distribution of the density of the elastic energy of knitting yarn and the distribution of the density of the elastic energy of the wool in the space of 3 dimensions.
The following are the findings:
(1) The elastic property of the knitting yarn are represented by the density of the elastic energy per mass.
(2) The distribution of the curve of the density of the elastic energy may be adjusted by the mean load of wool.
(3) The form and distribution of the curves of the density of the elastic energy of knitting yarn is determined by the surface of the set of density curves of the elastic energy of wool of which knitting yarn is made.