Synthesis, Spectra Studies and Colour Assessment of Acid Dyes Derived From Benzimidazoles on Nylon 6, 6 Fabric

Issa O. Ibrahim, A. Giwa, U. S. Ameuru

Abstract


Novel azo acid dyes were synthesized from benzimidazole derivative using Gamma acid and J-acid as coupling components in good yield. The dyes were characterised using UV-Visible, NMR and FT-IR spectroscopic techniques. The synthesised dyes were applied on nylon 6, 6 fabrics and gave firebrick and dark red respectively. The percentage dye exhaustion (64-67%) was very good. The dyed fabrics showed moderate to very good fastness to light, wash and perspiration.


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