RSM Optimization of Wool Dyeing withBerberis ThunbergiiDC Leaves as a New Source of Natural Dye

With the aim of introducing a new source of natural dye and developing a sustainable coloration process, the dyeing of wool with the leaves ofBerberis thunbergiiDC was optimized using response surface methodology. The results showed that increasing the dye concentration and dyebath temperature increased the color strength (K/S) and increasing the dyebath pH and mordant concentration decreased the K/S. The optimum pH, dye concentration, dyeing temperature, and mordant concentration for obtaining the highest K/S were 5, 146%owf, 76 degrees C, and 3.8%owf, respectively. The sample dyed under the optimal conditions showed good color fastness properties.

Automated summary

This study optimized the dyeing parameters for wool using Berberis thunbergii DC leaves as a natural dye source, aiming to introduce a new sustainable coloration process. The results showed that increasing dye concentration and dyebath temperature increased color strength (K/S), while increasing dyebath pH and mordant concentration decreased K/S. The optimal pH, dye concentration, dyeing temperature, and mordant concentration for achieving the highest K/S were 5, 146%owf, 76°C, and 3.8%owf, respectively. The samples dyed under the optimal conditions exhibited good color fastness properties.