Microwave-initiated modification of polyamide 6.6 fabric surfaces for superior hydrophilic and flame retardant properties

Rahman, Mohammad Ziaur; Kundu, Chanchal Kumar; Wang, Xin; Nabipour, Hafezeh; Song, Lei; Hu, Yuan

doi:10.1016/j.polymdegradstab.2022.110128

Cited by 5 publications

(1 citation statement)

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“…PA textiles exhibit exceptional mechanical properties, making them highly versatile for various applications, from everyday apparel to technical textile uses [ 17 ]. Polyamide fibers are of significant commercial importance in the textile industry and are widely used in producing yarns, garments, industrial textiles, and carpets [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Waterless Dyeing of Polyamide 6.6

Eren,

Özyurt

2024

Polymers

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Waterless dyeing of polyamide 6.6 using scCO2 (supercritical carbon dioxide) was investigated. PA (polyamide) fibers can be dyed with various dyes, including disperse dyes. The conventional aqueous dyeing process uses large amounts of water and produces polluted water. Considering these environmental issues, waterless dyeing of fibers is a forefront issue, and utilization of supercritical carbon dioxide (scCO2) is a commercially viable technology for waterless dyeing. This study tested PA6.6 (polyamide 6.6) dyeing in scCO2 at 100 °C 220 bar pressure for 45 min. Color measurements and color fastness tests were performed, as well as tensile strength, scanning electron microscope (SEM) analysis, and Fourier transform infrared spectroscopy (FTIR) analysis. PA6.6 fabrics yielded higher K/S (color strength, the Kubelka–Munk equation) values with larger molecular weight dye and almost the same color strength with medium and small-sized dyes, demonstrating the ability of dyeing in a supercritical environment without water as a more environmentally friendly dyeing option compared to conventional dyeing.

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Section: Introductionmentioning

confidence: 99%