Acid Yellow dyes
Acid dyestuff is to point to contain acid group in dyestuff molecule, call anion dyestuff again, can combine with amino in protein fiber molecule with ionic bond, suit under acid, weak acid or neutral condition. The main structure is azo and anthraquinone, a few are aromatic methane structure. Dyes and colors are generally compounds that have their own color and can give other substances a bright and firm color in a molecular or dispersive state.
Acid dyes can be divided into strong acid, weak acid, acid media and acid complex dyes according to their chemical structure and dyeing conditions.
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