The foundations of the chemical dyestuffs industry were laid in 1856 when W. H. Perkin discovered the dye Mauveine. At approximately the same time modern chemistry was establishing itself as a major science. Thus, the chemistry of dyes became that branch of organic chemistry in which the early scientific theories were first used. This early eminence has now been largely lost. In fact, many of our academic and teaching institutions pay little attention to this vitally important branch of organic chemistry. We believe that this book will help to rectify this unfortunate situation. The majority of books that have been published on the subject of dyes have been technologically biased and, in our opinion, do not appeal to the mainstream organic chemist. We have, therefore, aimed at producing a book which emphasises the role of organic chemistry in dyestuffs and we have included appropriate modern theories, especially the modern molecular orbital approaches. We have assumed that the reader possesses a knowledge of the basic principles of organic chemistry;* the only other requirement is a general interest in organic chemistry.** The book should interest the newcomer to chemistry, the established academic, and the dyestuffs chemist himself.

1 The Development of Dyes

1.1 Introduction
1.2 Pre-Perkin Era - The Natural Dyes
1.3 Perkin and Beyond - The Synthetic Dyes
1.4 Future Trends
1.5 Summary
1.6 Bibliography
2 Classification and Synthesis of Dyes
2.1 Introduction
2.2 Classification of Dyes
2.3 Synthesis of Dye Intermediates
2.4 Synthesis of Dyes
2.5 Summary
2.6 Bibliography
3 Azo Dyes
3.1 Introduction
3.2 Basic Structure of Azo Dyes
3.3 Tautomerism
3.4 Metal Complex Azo Dyes
3.5 Colour and Constitution
3.6 Summary
3.7 Bibliography
4 Anthraquinone Dyes
4.1 Introduction
4.2 Structure of Anthraquinone Dyes
4.3 Tautomerism
4.4 Protonated and Ionised Anthraquinone Dyes
4.5 Metal Complexed Anthraquinone Dyes
4.6 Colour and Constitution
4.7 Summary
4.8 Bibliography
5 Miscellaneous Dyes
5.1 Introduction
5.2 Vat Dyes
5.3 Indigoid Dyes
5.4 The Phthalocyanines
5.5 Polymethine Dyes
5.6 Di- and Tri-aryl Carbonium Dyes and their Derivatives
5.7 Nitro (and Nitroso) Dyes
5.8 Summary
5.9 Bibliography
6 Application and Fastness Properties of Dyes
6.1 Introduction
6.2 Textile Fibres - Types and Structures
6.3 Application and Wet Fastness of Dyes
6.4 Light Fastness of Dyes
6.5 Photochromism
6.6 Heat Fastness of Dyes
6.7 Bleach Fastness of Dyes
6.8 Metamerism
6.9 Solvatochromism
6.10 Summary
6.11 Bibliography
Appendix I
Appendix II
Author Index.