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Document Type : Original Article


Enhancement of dyeability, antibacterial, and
hydrophilicity of polyamide-6,6 was introduced with colloidal
silver nanoparticles (CSNs) and butane tetra carboxylic acid
(BTCA) using cubic statistical models. Different concentrations
of CSNs and BTCA were investigated to evaluate their
influences on dyeability, antibacterial, hydrophilicity, and
color change properties of polyamide-6,6 fabric by applying
statistical design of D-optimal method. Antibacterial property
of treated sample was tested by Gram-negative bacterium
Escherichia coli and Gram-positive bacterium Staphylococcus
aureus. To achieve optimum conditions for polyamide-6,6,
response surface methodology was also utilized. Here, CSNs
were stabilized on polyamide-6,6 surface using BTCA as
crosslinking agent in order to enhance washing durability.
Scanning electron microscopy and energy-dispersive
spectroscopy were employed to characterize presence of CSNs
on surface of polyamide-6,6 and elemental composition of
treated polyamide-6,6 fabrics. Treatment optimization led to
considerably absorption enhancement of C.I. Acid Red 81 dye
through cubic statistical models on polyamide-6,6 surfaces as
well as antibacterial and hydrophilicity characteristics and
minimized color change caused due to CSNs influence. The
principal result is synergetic effect utilizing BTCA accompany
with CSNs on enhancing and durability of mentioned
properties quantitatively in optimized conditions. Overall,
the suggested method could be introduced as a new route,
disclosing various desirable multifunctional characteristics to
polyamide-6,6 fabric.