Dyeing Silk with Bark of Oroxylum indicum (L.) Kurz.
Keywords:
Dyeing silk, the Bark of Oroxylum indicum (L.) Kurz. Mordant, Color measurement, Colour fastnessAbstract
The objectives of this research were to use the bark of Oroxylum indicum (L.) Kurz. to dye silk and to study the type of mordants, pH value, color values using the CIELAB system, shade, and color fastness to washing, light. Results show that the dye from Oroxylum indicum (L.) Kurz. bark had an average pH of 5.96 was mixed with the various mordants, including tamarind juice, rubber wood fly ash, and lime. Oroxylum indicum (L.) Kurz. bark extract was the highest value of difference in light absorption equal to 0.661 followed by lime, tamarind juice and rubber wood fly ash respectively. After being dyed with extract, the silk yarn had a yellow-gold hue with a brightness (L*) of between 67.523 and 75.440. The red-green ratio (a*) ranged from 17.70 to 9.716. The yellow-blue (b*) ranged in value from 24.68 to 32.446. By way of color comparison in pantone matching system is bright gold. The colour fastness to washing of the dyed silk yarn was very good meanwhile the colour fastness to light was very good.
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