The durability of water and oil repellent finishing of cotton fabrics with Isocyanate

摘要

The cotton fabrics was treated with the blending of organic fluorine water and oil repellent finishing agent and cross-linking agent. The contact angle to water was over 120° and that to oil was above 110° after the fabrics were washed 20 times, indicating that the water and oil repellent properties and durability of fabrics were excellent. And the technology was optimized as follows: the water and oil repellent finishing agent 50 g/L, cross-linking agent 4 g/L, curing temperature 150°C and curing time 200 s.