Mangrove (Bruguiera gymnorrhiza) Leaves Potential as Colouring Agent on Cotton, Rayon, and Sateen Fabrics

This study aims to find the value of the fastness test of the natural dye of lindur leaves (Bruguiera gymnorrhiza). This research was conducted in June-November 2020. This research used descriptive and experimental methods (Experiments). The samples used were cotton, rayon, and sateen fabrics. The results showed that the lindur leaf fixator (Bruguiera gymnorrhiza) was able to dye fabric fibers. The results of the color fastness value in hot water are influenced by the difference in ΔE (colorfastness), cotton fabrics have a range of values ​​between the medium category (5.1-5.94), the medium-large category rayon cloth (5.09-9.06 ), medium category satin (3.65-4.35). The results of the color fastness value in cold water are influenced by the difference in ΔE (colorfastness), cotton fabrics have a range of values ​​between the small and medium categories (1.96-3.68), rayon fabrics in the small category (2.83-3.9 ), the small category of satin fabrics (1.54-2.76).