Mercerization of Cotton Yarn Fibers. Optimization of Caustic Soda Concentration via Degree of Mercerization, Dyability and Mechanical Properties

摘要

Merecerization treatment for cotton yarn fibers is very essential process to increase the luster, tensile strength and enhancement their dyability. In this investigation, a selection of three common yarn patterns (2/9.5, 984 and 3/8) was subjected to different mercerization experiments under factory conditions, to optimize the caustic soda concentration for highest quality and economic impact. Each of mechanical and color properties were measured, where the experimental evidences indicated that optimum benefits of caustic soda concentration for improving color yield and mechanical properties can be obtained at 25% caustic soda concentration. The retrieval study of the wasted caustic soda was also performed.