Abstract
Maturity of cotton fiber must be based on the cellulose and non-cellulose contents from biochemical point of view. Nevertheless, up to the present, the physical measurement method of maturity has been generally based on the geometrical shape of lint.
Then, in order to propose a new concept for the determination of maturity based on chemical analysis, the relation of cellulose and non-cellulose substances (nitrogen, phosphorus, ash, wax and pectate) to maturity (immaturity ratio by arealometer, maturity index by causticaire method) and fineness (micronaire fineness, arealometer fineness, causticaire fineness) must be made clear.
The cotton variety used for this research was “Rikuchimen Kan-no No.I, ” a sort of upland cotton.
In addition, the cause of various troubles on the cotton-spinning process of immatured lint in raw cotton is discussed.
