Optimal design of superfine polyamide fabric by electrostatic flocking technology

Abstract

The use of superfine fibers as piles to produce flocked fabrics is underreported despite their excellent properties. Therefore, a superfine polyamide fiber was used for piles to produce flocked fabric in this study, and a full factorial design was employed with three design factors at three levels to optimize the process parameters in terms of flocking density. The flock density is found, experimentally, to increase with the decrease of flocking distance and the increase of field strength and flocking time. A ternary linear equation is also established in this study based upon the regression analysis on experimental results and verified by F-test showing that it has remarkable significance. Comparison with experimental values shows that the regression equation possesses high accuracy. The optimum parameters are empirically and experimentally determined as: flocking distance of 7 cm, field strength of 60 kV, and flocking time of 10 s.

Improvement in the light fastness of dyed meta‐aramid fabric using titanium dioxide nanoparticles

“…The dyeing recipe consisted of basic dye (for 1% shade), 1 g/l of NoMa Bid 31 as a carrier, 20 g/l of Nomopal N as depth enhancer, 10 g/l of sodium nitrate as an exhausting agent , and acetic acid to maintain pH at 5.5. Corresponding to each basic dye, two samples were dyed, one with the aforementioned dyeing recipe and the second by adding 70 g/l of BA as a swelling agent.…”

Metal ion adsorption behavior of lignocellulosic fiber–ethylene vinyl acetate composites

“…The acid‐washed bagasse (150 g) of about 300 μm (measured by sieves) was then soaked in 5% NaOH (m/v) for a period of ∼4 h. The fiber was then washed with distilled water until a conductivity of 1390 μs/cm was reached (the 1390 μs/cm was maintained for all experiments with bagasse), decreasing from an initial conductivity of 3.43 ms/cm. The alkali treated fiber was then dried in an oven at 60°C for a period of 24 h followed by drying in air for 7 days [11]. These acid and alkaline fiber treatments were performed to remove soluble pectins, waxes, and part of lignin, so that fiber‐matrix adhesion could be enhanced.…”