Jaipur pink also called Sappan wood natural dye extract is produced by solvent extraction method. Sappan wood is famously known as Indian redwood, or also called as the heartwood of Caesalpinia trees. The heartwood consists different water soluble flavonoids namely, brazilin, protosappanin and haematoxylin. Brazilin is the main flavonoid constituent found in the heartwood, which is well known as the natural red color dye for staining cotton, silk and wool. Under natural condition it mostly grows in hilly areas. the Brazilin gives red pigment to fabrics. In extraction process of Brazilin, the wood is first crushed into powder form and then The powdered bark is boiled with water at high temperature for about 40-45 minute. Then it is filtered and bleached with different mordents to give a varied range of strong red dyes, ranging from deep crimsons to pinks.
(A) Wet the fabric with wetting agent/soapnut(Reetha) or normal wash with water at 50 degree for 20 mins.
(B) Pre Mordant :- Pre-treat the material with alum 12% of fabric weight at 85°C for 60 mins.
(C) Dyeing :- Add the required amount of dye to the dye bath. PH of dye bath needs to be maintained at pH 5. If it is higher than pH, 5 add vinegar, if below pH 5, use lime or soda ash. Stir well to dissolve the dye. Add fabric to the dye bath and maintain at 95°C for 60-80 mins. We check all our natural dyes at 5% of fabric weight; you can amend the percentage as per lighter or darker shade required.
(D) Post Treatment :- Conduct soaping of the dyed material with non-ionic detergent (0.5gpl) or ezee soap at 50°C for 35 mins.
(E) Then conduct cold wash of the material at 50°C for 20 mins or more time.
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