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  Industrial Dyes: Chemistry, Properties, Applications - Google Books

  http://books.google.de/books?id=yUf5nsuyaQYC&pg=PA227

  What would life be like without color? Ever since one can think back, color has always accompanied mankind. Dyes - originally obtained exclusively from natural sources - are today also produced synthetically on a large scale and represent one of the very…

• 

  Industrial Dyes: Chemistry, Properties, Applications - Google Books

  https://books.google.de/books?id=uAzS4Hk2TgwC

  What would life be like without color? Ever since one can think back, color has always accompanied mankind. Dyes - originally obtained exclusively from natural sources - are today also produced synthetically on a large scale and represent one of the very…

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