UV Protection and Fastness Properties of Silk Fabric Dyed with Garcinia dulcis (Roxb.) Kurz Bark by Using Pad-Dry Technique. A Focus on Effect of Mordant Concentration
This research was concerned with dye extraction from the bark ofGarcinia Dulcis(Roxb.) Kurz and with the application of this dye for silk fabric dyeing by the pad-dry process. Silk fabrics dyed withGarcinia Dulcis(Roxb.) Kurz bark extract showed a pale yellow shade, while those dyed with alum and stannous chloride bright yellow and light yellow colour, respectively. Silk substrates dyed with CuSO4gave a yellowishgreen colour, while those dyed with FeSO4had a dark brown colour. The colour fastness to rubbing after dyeing the silk fabric treated with the mordant was investigated, the results of which showed fair to good fastness. The results confirmed that natural dyes fromGarcinia Dulcis(Roxb.) Kurz bark extract have potential applications for fabric dyeing and producing ultraviolet (UV) protective silk fabric.