Dyeing Properties Using Natural Dyes from Rhubarb:

In this investigation dyeing of alginate fiber was carried out after cationic treatment of 11 EPTAC (2, 3-Epoxypropyl Trimethyl Ammonium Chloride). Optimum dyeing process and 12 parameter show good dyeing performance when alginate fiber dyed with rhubarb dye. In addition 13 to cationic treatment is taken into account for alginate fiber to improve fastness, color strength, 14 breaking strength. Later in dyeing for fixation ferrous sulfate, copper sulphate was considered as 15 mordents. Moreover using pre-mordanting methods conveyed the dyeing of alginate fiber with the 16 stave of metallic mordant and without metallic salt mordents. The evaluation of each color dyed 17 material was done through following two terms for instance CIELAB (L*, a*, and b*) and K/S 18 values. According to AATCC test methods color fastness to washing of the dyed fiber was 19 determined whereas according to the ASTM D3822M standard the breaking strength of alginate 20 fiber was estimated and tested. When dyeing was carried out on alginate fiber through considering 21 optimum parameter like 80◦C for 90 min, M: L 1:40 and at pH 7 which showed optimum results. In 22 addition to mostly very good wash fastness was obtained while there was no fading of the color, 23 whereas the moderate level of color fastness to crocking was achieved. Later after dyeing the 24 evaluations of SEM of the cationized alginate fiber and FTIR of powder from the rhubarb dye were 25 observed. The results suggested that the surface of cationized alginate fiber was smoother than the 26 raw alginate fiber. 27