09-08-2023-2117 - draft (acid dye, continued..., etc., draft)

The chemistry of acid dyes is complex and diverse. Most acid dyes are related in basic structure to the following:

• Anthraquinone type: Many acid dyes are synthesized from chemical intermediates that form anthraquinone-like structures as their final state. Many blue dyes have this structure as their basic shape. The structure predominates in the leveling class of acid dye.
• Azo dyes: The structure of azo dyes contains the azo group (R-N=N−R. Most azo dyes are not acid dyes, but many acid dyes are azo dyes. Many acid dyes of the azo type are red in color.^[14]
• Triarylmethane dye: These predominate in the milling class of dye. There are many yellow and green dyes commercially applied to fibers that are related to triphenylmethane.

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  C.I. Acid Black 1

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  C.I. Acid Yellow 36

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  C.I. Acid Blue 117

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  C.I. Acid Orange 19

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  C.I. Acid Blue 25

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  C.I. Acid Orange 3

 

https://en.wikipedia.org/wiki/Acid_dye