Open AccessOptimizing the Dyeing of Silk Fabric with Gemstone Powder using Exhaustion Process
Author(s) -
Walaikorn Nitayaphat,
Thanut Jintakosol
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22800
Subject(s) - dyeing , silk , cationic polymerization , malachite , malachite green , chemistry , reagent , nuclear chemistry , pulp and paper industry , materials science , polymer chemistry , composite material , organic chemistry , adsorption , copper , engineering
The silk fabrics were modified by a cationic reagent, N-(3-chloro-2-hydroxypropyl)trimethylammonium chloride in order to prepare thefiber to be dyed with gemstone powder (i.e. malachite, lapis lazuli and jasper) by an exhaustion process. The effect of dyeing conditionssuch as temperature, dyeing time, pH and gemstone powder concentration on colour strength were investigated. Optimum results wereachieved when dyeing at a liquor ratio of 1:100 at pH 3 (for malachite and jasper) or pH 5 (for lapis lazuli), at 90 ºC for 60 min. The colorfastness to crocking of cationic treated silk fabric dyed with gemstone powder was fair to good, whereas the color fastness to washing waspoor to fair. However, the colour fastness to light was very good. This study demonstrated that cationic treated silk fabric can dyed withgemstone powder by exhaustion process.