Fig. 1

WCA of treated cotton with fluorocarbon at 20 g/L, 40 g/L and 60  g/L before and after 10 washes. a 20 g/L—unwashed-WCA (123°); b 40 g/L—unwashed-WCA (123°); c 60 g/L—unwashed-WCA (127°); d 20 g/L—10 washes-WCA (125°); e 40 g/L—10 washes-WCA (126°); f 60 g/L—10 washes-WCA (127°)