Excerpt from The Analysis of Dyestuffs and Their Identification in Dyed and Coloured Materials, Lake-Pigments, Foodstuffs, Etc The great progress in the development of the Artificial Dyestuff Industry, which has marked the past half - century, has brought with it an urgent necessity for systematic methods of analysis capable of being applied not only to dyestuffs in substance but also to all manner of dyed and coloured materials, such as textile fabrics, lake pigments, paper, foodstuffs, etc. Though any desired shade can now be obtained in many different ways, the properties and fastness of the result will be dependent entirely on the dyestuffs selected. Hence arises the need in many industries for analytical investigation and control. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.