微波辐照对棉织物染色性能的影响

Influence of microwave irradiation on dyeing behaviors of cotton fabrics

对比了微波辐照染色和常规染色,结果表明:微波辐照染色时间短,染色深度、颜色丰满度、匀染性以及摩擦色牢度均不逊于常规染色.利用单因素试验法探索微波辐照染色工艺对染色性能的影响,通过正交试验优化得到染色最佳工艺:辐照功率595W,染色、固色时间分别为6 min、5 min,元明粉15 g/L,纯碱15 g/L.微波辐照使棉纤维的结晶度变小,有利于提高染色性能.

Microwave irradiation dyeing and conventional dyeing were compared. The results showed that the color depth, color fullness, levelness and crocking fastness of fabrics dyed by microwave irradiation method were comparative to those of conventional dyeing. The effect of microwave irradiation dyeing process on dyeing behavior was investigated through single factor experiment method. The optimal dyeing technique was obtained through orthogonal experiment： the power of microwave irradiation was 595 W, dyeing time and fixation time were 6 min and 5 min, 15 g/L of sodium sulfate, 15 g/L of sodium carbonate. The crystallinity of cotton fiber was decreased under microwave irradiation, which was favorable to improve the dyeing behavior of cotton fabric.