Affiliation:
1. Department of Textile Engineering, School of Textile, Leather and Fashion Technology, Kombolcha Institute of Technology (KIOT), Wollo University, Kombolcha, Ethiopia
Abstract
The study explores the use of pectin from lemon peel for pigment printing cotton fabric. The optimal extraction conditions were 95°C, 90 min, 1:40 MLR, and pH 2. The extracted pectin was light yellow, with a moisture content of 13.4%, volatile compound content of 82.3%, total ash content of 3.1%, fixed carbon content of 14.6%, and a pH of 3.5. The thermal stability of the pectin binder was determined to be 230°C. The study also found that pectin cross-linking was achieved through continuous extrusion using 1% citric acid and 0.3% AgNO3. The formulated pectin binder was found to improve textile pigment printing quality and performance. The rheological properties of the pectin-based and commercial binder pastes were evaluated, showing that the pectin-based binder can produce fine designs with shear thinning but retain consistency when applied force is released, resulting in defined edges in prints. The study suggests that pectin-based formulations can be used as an optional binder to commercial binders in textile pigment printing.