Mordant dyes: These dyes have no natural affinity for the fabric and are applied to it with the help of certain additional substances known as mordants. A mordant (Latin mordere = to bite) is any substance which can be fixed to fabric and reacts with the dye to produce colours on fabric. Three types of mordants are commonly used,

         · Acidic mordants same as tannic acids which are used with basic dyes.

         · Basic mordants such as albumin or metallic hydroxides which are used with acidic dyes.

• Metallic mordants like salts of aluminum, chromium, iron, tin, etc., which are used with acidic dyes.

Actually the mordant forms an insoluble coordination compound between the fabric and the dye and bounds the two. Alizarin is a classic mordant dye. It provides different colours depending on the metal ion used. For example, with Al³⁺, alizarin gives a rose red colour; with Ba²⁺, a blue colour; with Fe³⁺, a violet colour and with Cr^3-, a brownish red colour.

The procedure of mordant dyeing consists in impregnating the fabric with mordant in presence of wetting agent followed by soaking of the fabric into the solution of dye.

Email based Chemistry assignment help - homework help at Expertsmind

Are you searching chemistry expert for help with Mordant dyes questions?  Mordant dyes topic is not easier to learn without external help?  We at www.expertsmind.com offer finest service of Chemistry assignment help and chemistry homework help. Live tutors are available for 24x7 hours helping students in their Mordant dyes related problems. We provide step by step Mordant dyes question's answers with 100% plagiarism free content. We prepare quality content and notes for Mordant dyes topic under chemistry theory and study material. These are avail for subscribed users and they can get advantages anytime.

Why Expertsmind for assignment help

1. Higher degree holder and experienced experts network
2. Punctuality and responsibility of work
3. Quality solution with 100% plagiarism free answers
4. Time on Delivery
5. Privacy of information and details
6. Excellence in solving chemistry queries in excels and word format.
7. Best tutoring assistance 24x7 hours