The Influence of Weathering on Some Chemical and Physical Properties of Wool Fibers, with Particular Reference to Felting

Abstract

The influence of weathering on the chemical and physical properties of wool fibers has been investigated. The weathered fiber tips are modified to a great extent by weather ing; this is shown in changes in solubilities and in the amino acid composition. As a result of photochemical degradation, fibers show a decrease in tenacity and extension as well as in compressional resistance. Weathered fiber tips showed, in spite of removal of a great number of scales, a better feltability than the fiber roots. On the basis of these results a theory of felting is presented and discussed.