Structure-Performance Relationship of Novel Azo-Salicylaldehyde Disperse Dyes: Dyeing Optimization and Theoretical Insights.

ABSTRACT: High yields of three novel azo disperse dyes based on the diazonium salt of sulfonamides-azo-salicylaldehyde were successfully synthesized. These dyes were structurally characterized by using spectroscopic techniques, including FTIR, ¹H NMR, and MS. The fundamental goal of the research was to determine the optimal dyeing parameters, such as temperature, pH, and time, to understand the behavior of dispersed dyes 13-15 during the dyeing of polyester materials. The results showed that increasing the dyeing temperature from 100 to 130 °C significantly improved the dyed polyester's color strength (K/S values). The colored polyester samples' hues ranged from beige to yellowish brown to dark brown due to the coupler molecules and other parameters such as tem

SUBMITTER: Elgammal WE 

PROVIDER: S-EPMC11866185 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature