Mordant dyes - classification of dyes, Chemistry

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Mordant dyes:

These dyes comprise no natural affinity for the fabric and are applied to it along with the help of specific additional substances termed as mordants. A mordant (Latin mordere = to bite) is any type of substance that can be fixed to fabric and reacts along with the dye to generate colours on fabric. Three sorts of mordants are generally used,

  • Acidic mordants similar as tannic acids that are used with basic dyes.
  • Basic mordants like albumin or metallic hydroxides that are used with acidic dyes.
  • Metallic mordants such as salts of aluminum, chromium, iron, tin, etc., which are utilized with acidic dyes.

 

 


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