To explore the application of natural gardenia blue in dyeing process,silk fabric was dyed with natural gardenia blue through direct dyeing method with the assistance of ultrasonic technology.Then,the optimal dyeing conditions were determined by single factor variable experiment and response surface method.The results show that the natural gardenia blue pigment exhibited the best dyeing effect on the silk fabric when the ultrasonic power was 120 W,the pH value was 3,the dyeing temperature was 50 ℃,the dyeing time was 50 min and the dyeing bath ratio was 1∶20.Satisfactorily,the color fastness to rubbing was good,and the color fastness to water and perspiration was measured as 4.Meanwhile,the staining fastness to cotton was 3,which met the standard of textile.At the same time,the optimized dyeing conditions were verified.The relative error between actual value and predicted value of the dyed silk fabric was 4.55％,and the reliability of the response surface prediction test was 95.45％.
关键词
天然栀子蓝色素/蚕丝/低浴比染色/超声波技术/响应面法/K/S值
Key words
natural gardenia blue pigment/silk fabric/low bath ratio dying/ultrasonic technology/response surface method/K/S value
维普
万方数据