Apparatus for determining the degree of hairiness of textile products obtains the result with the relative frequency of incidence of hair length classes and the moment of distribution of this frequency taken into account

摘要

The apparatus comprises at least one illuminating unit, multiple optical detectors of reflected light from the product surface, and a signal evaluator. The degree of hairiness is obtained with the relative frequency of incidence of hair length classes and the moment M of distribution of this frequency is taken into account.