The damage that can occur in certain fibrous raw materials or in textiles during their production and storage of textiles is expertly described in this book by Karl Mahall. In particular, he explains methods for finding concealed textile defects by using microscopic analysis.Besides minor improvements and corrections, the new edition contains a new chapter "Poultry Feathers as Filling Material for Bedding and Textiles - Analysis of Faults." The reason for its inclusion is that natural feathers and down are not only used as a filling material for bedding but also for garments, such as anoraks, coats and sleeping bags.This book is especially useful as a manual for both chemical and textile engineers and quality engineers. It is also a useful reference for others in the textile industry in general.