APPLICATION OF BUTTERFLY PEA FLOWERS ON ECO NATURAL DYEING PROCESS FOR KNITTED COTTON FABRIC

Butterfly pea flowers are widely used in life, commonly in medicine and food. In addition, the natural extracted from the butterfly pea flower is also applied to the textile and fashion industry such as the dyeing process for many types of fabrics. The paper presents the application of butterfly pea flowers in a natural dyeing process for knitted cotton fabrics. Firstly, the study used cotton knitted fabrics with five different mordants in the same experimental conditions to explore the effects. The study showed that other kinds of mordants affect the established color of dyeing fabrics. There is a wide range of colors from butterfly pea flowers which can support the fashion industry. There were five significant colors from five different mordants. Secondly, there was no difference between all the mordants for checking color fastness and color staining with level of 4-5. Finally, the measurements demonstrated the relationship between K/S, ΔE parameters, and determined mordants. The highest K/S displayed with mordant of  FeSO4.7H2O (1.537), the lowest K/S showed with no mordant (0.168). Similarly, the highest ΔE indicated with mordants of FeSO4.7H2O (33.68), the lowest ΔE determined with mordants of Na2CO3 (16.99).