Color, Fastness, Antibacterial, and Skin Sensitivity Properties of High Lightfastness Azo Disperse Dyes Incorporating Sulfamide Groups

A series of cationic and disperse dyes has been applied on to the nylon and acrylic fabrics in order for their dyeing properties to be investigated. The build-up values and the fastness properties of the dyed fabrics such as wash, light, and rubbing fastness degrees were measured by standard methods. Moreover, the color gamut of the synthesized dyes was measured on polyamide and acrylic fibers. The results showed that the synthesized dyes were able to dye polyamide fabrics with deep shades. However, synthesized azo dyes did not show good dyeing ability on acrylic fiber. The antimicrobial properties of dyed polyamide fabrics were evaluated against various bacteria and fungi. The dyed fabrics exhibited excellent antimicrobial efficacy against both Gram-positive, Gram-negative bacteria, and fungi. The skin irritation test on azo dyes and dyed polyamide fibers with this dye was carried out. The results showed that none of the dye and dyed polyamide fibers created any skin irritation.