DescriptionConcentration on renewable resources, sustainability and replacement of oil based products are driving forces to reassess the potential of natural resources including natural colorants. The growing consumer interest in purchasing “green” products, which exhibit an improved environmental profile, can be seen as the break-through force needed to reintroduce natural colorants into the modern markets.
Written by scientists with specialised knowledge in the field, Handbook of Natural Colorants provides a unique source of information, summarising the present knowledge of natural colorants in depth. Supporting researchers in this emerging field of sustainable chemistry, it provides easy access to the theory and practice of natural colorants from different viewpoints, including agricultural, economic and legislative aspects.
Topics covered include:
- History of coloration technology
- Present position of natural colorants
- Regional plant source availability
- Specific application techniques
- Chemical properties that professional dyers and chemists have to consider
- Agricultural sourcing of dyes with an emphasis on renewable resources
- Discussions on energy and material balance issues arising from the sourcing of materials
- Production aspects of colorants, leading on to the key applications
- Environmental and economic aspects
Also included are the pros and cons of natural dyestuffs, presenting some promising results and evaluating the potential use of vegetable dyes as alternatives to chemical-based ones with a focus on green chemistry
Part I Historical Aspects.
1 History of Natural Dyes in the Ancient Mediterranean World (Maria J. Melo).
1.2 Ancient Reds.
1.3 Ancient Blues.
1.4 Ancient Purple (Tyrian Purple).
1.5 Ancient Yellows.
2 Colours in Civilizations of the World and Natural Colorants: History under Tension (Dominique Cardon).
2.2 The Triumph of Mauvein: Synthetic Fulfilment of the Antique Purplemania.
2.3 Blue: from Kingly Regional to Globally Democratic.
2.4 Red and Yellow: from Micro to Macro Scales.
2.5 What Future for Natural Colorants in the Dawning Era of Renewable Resources?
3 History of Natural Dyes in North Africa ?Egypt? (Harby Ezzeldeen Ahmed).
3.2 Natural Dyes in Pharaonic Textiles.
3.3 Dyeing Techniques.
3.4 Dye Sources.
3.5 Dyeing in Coptic Textiles.
3.6 Wool Dyed Fabric with Natural Dye.
3.7 Dyes in Islamic Textiles.
Part II Regional Aspects of Availability of Plant Sources.
4 Dye Plants in Europe (Andrea Biertu¨mpfel and Gu¨nter Wurl).
4.2 Potential European Dye Plants.
4.3 Cultivation of Dye Plants Yesterday and Now.
4.4 Modern Cultivation Methods for Important European Dye Plants.
4.5 Production of Dye Extracts.
4.6 Relevant Examples for the Application.
4.7 Conclusions, Discussion and Summary.
5 Dyes in South America (Veridiana Vera de Rosso and Adriana Zerlotti Mercadante).
5.5 Cochineal and Carmine.
6 Natural Dyes in Eastern Asia (Vietnam and Neighbouring Countries) (Hoang Thi Linh).
6.2 Annatto (Botanical Name Bixa orellana L., Family Bixaceae).
6.3 Tea (Botanical Name Camellia sinensis (L.) Kuntze, Family Theaceae).
6.4 Umbrella Tree (Botanical Name Terminalia catappa L., Family Combretaceae).
6.5 Diospyros mollis ? Mackloeur (Botanical Name Diospyros mollis L. Griff, Family Ebenaceae).
6.6 Indigo (Botanical Name Indigofera L., Family Fabaceae).
6.7 Henna (kok khan, or khao youak in Laos) (Botanical Name Lawsonia spinosa L., Family Lythraceae).
6.8 Nacre (Botanical Name Khaya senegalensis, Family Meliaceae).
6.9 Sappan Wood (Botanical Name Caesalpinia sappan L., Family Fabaceae).
6.10 Sophora japonica Flowers (Botanical Name Sophora japonica L., Family Leguminosae).
6.11 Turmeric (Botanical Name Curcuma longa L., Family Zingiberaceae).
6.12 Sapodilla (Botanical Name Manilkara zapota L. or Achras zapota Family Sapotaceae).
6.13 Betel (Botanical Name Piper betle L., Family Piperaceae).
6.14 Eucalyptus (Botanical Name Eucalyptus, Family Myrtaceae).
6.15 Caesalpinia Yellow (Botanical Name Caesalpinia pulcherrima L., Family Fabaceae).
6.16 Brow-tuber (Botanical Name Dioscorea cirrhosa Lour, Family Dioscoreaceae).
Part III Colorant Production and Properties.
7 Indigo ? Agricultural Aspects (Philip John and Luciana Gabriella Angelini).
7.3 Persicaria (Polygonum).
8 Indigo ? Extraction (Philip John).
8.2 Methods of Determining Indigo.
8.3 Precursors in the Plants and Indigo Formation.
8.4 Extraction Procedures.
8.5 Purity of Natural Indigo.
9 Anthocyanins: Nature?s Glamorous Palette (Maria J. Melo, Fernando Pina and Claude Andary).
9.1 Chemical Basis.
9.2 Natural Sources for Anthocyanins.
9.4 Examples of Commercial Products and Processing.
10 Natural Colorants ? Quinoid, Naphthoquinoid and Anthraquinoid Dyes (Thomas Bechtold).
10.2 Benzoquinone Dyes.
10.3 Naphthoquinone Dyes.
10.4 Anthraquinone Dyes.
10.5 Other Sources of Anthraquinoid Dyes.
11 Dyes from Lichens and Mushrooms (Riikka Ra¨isa¨nen).
11.1 Use of Lichen and Mushroom Dyes in the Past.
11.2 Cultivation of Lichens and Mushrooms.
11.3 Dyestuffs in Lichens and Mushrooms.
11.4 Colour-fastness of Lichen and Mushroom Dyes.
11.5 New Approaches to Lichen and Fungal Natural Dyes.
12 Tannins and Tannin Agents (Riitta Julkunen-Tiitto and Hely Ha¨ggman).
12.2 Chemical Structure, Biosynthesis and Degradation.
12.3 Properties of Tannins.
12.4 Chemical Activities of Tannins.
12.5 Analysis of Tannins.
12.6 Use, Toxicology and Safety Aspects of Tannins.
13 Carotenoid Dyes ? Properties (U. Gamage Chandrika).
13.2 Properties and Functions of Carotenoids.
13.3 General Procedure for Carotenoid Analysis.
13.4 Problems in Carotenoid Analysis.
14 Carotenoid Dyes ? Production (U. Gamage Chandrika).
14.1 Factors Influencing Carotenoid Composition in Plant Sources.
15 Chlorophylls (Ursula Maria Lanfer Marquez and Daniela Borrmann).
15.2 Chlorophylls as Colorants.
15.3 Other Applications of Chlorophylls and their Derivatives.
15.4 Chemical Structures and Physicochemical Properties.
15.5 Stability and Analysis.
15.6 Sources, Storage and Handling.
15.7 Purity, Standardization and Quality Control.
15.8 Toxicological and Safety Aspects.
Part IV Application in Technical Use and Consumer Products.
16 Flavonoids as Natural Pigments (M. Monica Giusti and Taylor C. Wallace).
16.2 Role of Localized Flavonoids in the Plant.
16.3 General Flavonoid Chemical Structure.
16.4 Biosynthesis of Flavonoids.
16.5 Anthocyanins as Natural Colorants.
16.6 Other Flavonoids as Natural Colorants.
16.7 Therapeutic Effects of Flavonoids in the Diet.
16.8 Regulations on the Use of Flavonoid Colorants.
17 Application of Natural Dyes in the Coloration of Wood (Martin Weigl, Andreas Kandelbauer, Christian Hansmann,Johannes Po¨ckl, Ulrich Mu¨ller and Michael Grabner).
17.4 Color Modification.
18 Natural Colorants in Textile Dyeing (Rita A. M. Mussak and Thomas Bechtold).
18.2 Reasons for Natural Coloration.
18.3 Analysis of a Dyeing Process.
18.4 Basics of Natural Dyeings.
18.5 Natural Dyes on an Industrial Scale.
19 Natural Colorants in Hair Dyeing (Thomas Bechtold).
19.2 Human Hair.
19.3 General Requirements on Hair Dyeing Concepts.
19.4 Chemical Principles of Dyestuff Binding.
19.5 Relevant Natural Dyes for Hair Dyeing.
Part V Environmental.
20 Environmental Aspects and Sustainability (Erika Ganglberger).
20.2 Supply of Plant Material.
20.3 Processing to Dyestuff.
20.4 Application of Colouring Matter.
20.5 Considerations Concerning the Life Cycle.
21 Economic Aspects of Natural Dyes (Susanne Geissler).
21.2 Basic Requirements for the Industrial Use of Natural Colorants.
21.3 Challenges for the Industrial Use of Natural Colorants.
21.4 Consumer Expectations.
21.5 Production Costs of Natural Colorant Products.
21.6 Closed-Loop Economy: Towards a Zero-Emission and Zero-Waste Society.
21.7 Conclusion: Aspects Influencing Market Development for Natural Colorants.