Abstract
It is known that regenerated cellulose fibers possess continuous micellar structure in which fully extended cellulose chains penetrate through numbers of crystalline and amorphous regions, constructing primary network structure as a whole.
Considering the importance of continuous micellar structure (that is, complete primary network structure) for the fatigue resistance of high tenacity rayons, the difference in alkali solubilities of high tenacity rayons before and after ethanolysis was investigated as a measure of perfectness of primary network structure.
The difference in alkali solubilities of high tenacity rayons before and after ethanolysis in a sodium hydroxide solution of such concentration in which ethanolyzed sample completely dissolved, is closely related to their fatigue life (Hose life).
