Optimized Vatting Condition Study for Natural Indigo Dyeing on Silk Yarn

Suchada Ujjin; Jantip Setthayanond

doi:10.4028/www.scientific.net/AMM.535.749

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 535Optimized Vatting Condition Study for Natural...

Optimized Vatting Condition Study for Natural Indigo Dyeing on Silk Yarn

Abstract:

This research studied the optimized dyeing conditions for natural indigo dye (Indigofera tinctoria) on silk yarn. Vatting of natural indigo dye was investigated under different temperatures and times and the natural dyeing auxiliaries were used i.e. tamarind and ash solutions. The results informed the optimum vatting condition for the indigo dye at 90°C for 30 minutes and the optimum pH was 12. The sugars in tamarind solution was expected to work as a reducing agent for dye vatting whereas the ash solution derived from banana barks was used as an alkalinity controller. Dyeing silk yarns with leuco indigo dye under a short time (5 minutes) provided a complete dye distribution with satisfactory color strength on silk and very good fastness properties.

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Periodical:

Applied Mechanics and Materials (Volume 535)

Pages:

749-752

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.535.749

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Online since:

February 2014

Authors:

Suchada Ujjin, Jantip Setthayanond*

Keywords:

Dyeing, Indigo, Natural Dye, Reduction, Silk, Vatting

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References

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