In this book the authors go back to basics to describe the structural differences between dyes
and pigments their mechanisms of action properties and applications. They set the scene by
explaining the reasons behind these differences and show how dyes are predominately organic
compounds that dissolve or react with substrates whereas pigments are (predominantly) finely
ground inorganic substances that are insoluble and therefore have a different mode of coloring.
They also describe the role of functional groups and their effect on dyeing ability
contrasting this with the way in which pigments cause surface reflection (or light absorption)
depending on their chemical and crystalline structure and relative particle size. The book
explores the environmental impact of dyes in a section that covers the physical chemical
toxicological and ecological properties of dyes and how these are used to assess their effect
on the environment and to estimate whether a given product presents a potential hazard. Lastly
it assesses how in addition to their traditional uses in the textile leather paper paint
and varnish industries dyes and pigments are indispensable in other fields such as
microelectronics medical diagnostics and in information recording techniques.
