Fluoride-free waterproof finishing process of 20D nylon fabric
The influence of fluoride-free waterproofing process on water repellent effect of 20D nylon fabric was explored and the effects of water repellent finishing agent compounds,heat-setting temperature and time,pretreatment and dyeing processes on waterproofing effect,static contact angle,hand print,and col-or changing were analyzed.The results showed that when the mass ratio of fluorine-free waterproofing agent R3 and fluorine-free waterproofing agent PM-3705 was 40∶20,the dosage reached 60 g/L,and the setting time at 170℃was more than 75 s,the initial waterproofing performance score of the finished fabric reached 100 points,the score reached 80 points after 5 times washing and drying,and the static contact angle exceed-ed 120°.Moreover,after treatment with fluoride-free waterproofing agent,the color of dyed fabric becomes darker,but the overall color difference ΔE was less than 1.
万方数据
维普
