Abstract
Experiments on moisture absorption of dry original animal fibers were conducted and the following results were obtained,
1) Under definite conditions, dry original fibers showed different contents of maximum moisture absorption.
2) Changing phases of moisture absorption of these fibers are expressed in a common hygroscopic equation, that is,
y=B√k/χ-A
3) The hygroscopic constant (K) specific to each fibers was calculated from the equation by using the constants (A and B) related to time process (x) and moisture absorption contents (y).
4) The reliability of the equation was ascertained from the result that there was good agreement between the theoretical values calculated and the experimental values estimated.
5) The features of the hygroscopicity of animal fibers are considered to be related to their morphology.
