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Chemistry of Indigo Dyeing
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Soluble / High Substantivity
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Mono-ionic
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Highly Soluble /
Low Substantivity |
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Di-ionic
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| Chemical Technologies has sponsored the indigo application research of Professor Nolan Etters at University of Georgia. Professor Etters explains that in the conventional denim dyeing, solubilized indigo exists primarily in di-ionic form (about 68%) and only 32% is in mono-ionic form. The Quickstone™ Denim System produces predominantly mono-ionic form; there is about 97% mono-ionic indigo. Mono-ionic indigo produced with Quickstone™ Denim has much higher substantivity for cotton fiber, and therefore produces: Greater ring dyeing effect due to less dye penetration into the fiber resulting into thinner dyed ring. Less dye use due to more surface dyeing and less dye penetration. More uniform dye rings due to lower depth of dye penetration |
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