Atomizd water repellent finishing process of cotton fabric
Functional fabrics with excellent waterproof and moisture permeability have attracted extensive attention from researchers.The commercial polyacrylate fluorine-free waterproof agent was atomized by air compression atomization,and the cotton fabric was treated by atomized water repellent finishing with vacuum suction negative pressure air flow as the medium.The influence of the finishing process on the water repel-lent effect of cotton fabrics was studied through single factor analysis,and the water repellent performance of fabrics treated with atomization and water repellent finishing process and traditional immersion rolling process was analyzed and compared.The results showed that the cotton fabric finished by atomized water repellent finishing process with mass concentration of finishing agent 120 g/L,atomization suction time of 6 min,bak-ing temperature of 150℃and baking time of 2 min,the cotton fabric had a good waterproof effect,and the water contact angle could reach 138.3°.After 30 washing cycles,the contact angle of the fabric was still great-er than 120°,which showed good washing resistance.The air permeability and moisture permeability of treat-ed cotton fabric was less affected by atomized water repellent finishing process,which could significantly re-duce pickup of waterproof agent by the fabric to achieve the effect of energy saving and emission reduction.