Effect of Fastness Properties Natural Indigo Dyed Cotton and Silk Fabrics from Strobilanthes Cusia (Nees) Kuntze |Biomedgrid

The quality of Mor Hom clothing, a well-known traditional fabric of Phrae Province, is diminished by the use of chemical indigo dyes. Increased understanding of how to prepare indigo paste and indigo dye as well as the utilization of Strobilanthes cusia (Nees) Kuntze, known as Hom, is necessary to raise the value of regional plant and community products. We discovered that soaking the harvested fresh leaves in 30°C water for 36 hours was the best condition for indigo paste preparation. The high-quality blue dye was created by mixing a kilogram of indigo paste with two liters of pH-14 alkaline water and 200 milliliters of tamarind sauce as a natural source of tartaric acid. This formulation provided the finished colored cottons with a high wash fastness scale.