what are the chemical structures of these fiber reactive dyes?


Name: k. rahul

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Reactive Blue 140
Procion-type Turquoise MX-G


Jacquard Procion MX Fiber Reactive Dye 2/3 oz. jar turquoise

Jacquard Procion MX Fiber Reactive Dye 2/3 oz. jar Turquoise

Permanent, colorfast, and very washable. You can easily create a palette of brilliant colors ranging from light pastels to deep, vibrant hues. Perfect for all natural fibers--cotton, rayon, linen, silk, wool, paper, reeds, and wood. Use with soda ash to activate the fiber-dye bond.


Message: What is the chemical structure of these dyes?: reactive blue 160, reactive blue 140, reactive red 141, reactive blue 171, reactive yellow 84H. Is their any web site which gives the structure of the textile dyes? kind reply for the same

If you can get access to a copy of The Colour Index, published by the Society of Dyers and Colourists, you can sometimes find drawings of molecular structures there. Check to see whether any institute of higher education in your area subscribes to the Colour Index.
  1. The only one on your list for which I have a drawing of the structure is Colour Index Reactive Blue 140. Reactive blue 140 is a dichlorotriazine dye, also known as Procion Turquoise MX-G. Here's a link to a page I wrote about it: "A Beautiful Blue: Procion Turquoise MX-G". Also see the more complete drawing I made of its molecular structure on this page: "I am trying to make the colour turquoise. What must I do?".

    2. All of the other dyes in your list are Procion-type H-E dyes, which means that they are bis(aminochlorotriazine) dyes, which are bifunctional dyes with two reactive sections per dye molecule. See "About Procion H and Procion H-E Dyes". These dyes are generally used by hand dyers as silk paint; they are sold by cpompanies such as PRO Chemical & Dye in Massachuesetts, and G & S Dye in Toronto. I don't have drawings for them, but I have found chemical names for several of them; if you are very good with understanding dye structures, then the full chemical name will be sufficient in order to draw the correct structure. Sometimes a search with the CAS registry number, enclosed in quotes (e.g., CAS "61951-85-7") will turn up more information.

  2. CAS NO: 71872-76-9
    Synonyms: REACTIVE BLUE 160;Reactive Blue HERD;Benzoic acid, 2-3-4-chloro-6-4-4-chloro-6-(3-sulfophenyl)amino-1,3,5-triazin-2-ylamino-2,5-disulfophenylamino-1,3,5-triazin-2-ylamino-2-hydroxy-5-sulfophenylazophenylmethylazo-5-sulfo-, pentasodium salt;C. I. Reactive blue 160;Blue KE-2B; 
  3. CAS NO: 61931-52-0   
    Synonyms: C.I. Reactive Red 141,   Procion Red H-E 7B,   Procion Rrd HE-7B 2,5-Dichloro-4-[4,5-dihydro-3-methyl-5-oxo-4-(sulfophenylazo)-1H-pyrazol-1-yl]-benzenesulfonic acid disodium salt, 7-Benzamido-4-hydroxy-3-{{4-[(4-sulfophenyl)-azo]-phenyl}-azo}-2-naphthalenesulfonic acid
  4. CAS NO: 68133-24-4 
    Synonyms: Navy Blue KE-R; H-ER; HER Reactive Blue KE-R 100%; Hexasodium-4-amino-3 ,6-bis [[5 -- [[4-chloro-6-[(3 -- sulfonatophenyl) amino] -1,3,5 -- triazin-2-yl] amino] -2 -- sulfonatophenyl] azo] -5 -- hydroxynaphthalene-2 ,7-disulfonate 
  5. CAS NO: 61951-85-7
    Synonyms: Synafix Golden Yellow HER

I don't have a full chemical name for your last dye, but if it has a Colour Index name, you should be able to get the full chemical name from a publication of the Society of Dyers and Colourists. Not all dyes have Colour Index names, but all dyes that have Colour Index names should have chemical names.

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Posted: Saturday - May 09, 2009 at 07:30 AM          

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