超声波在丝/绒同浴染色中的应用

Study on application of supersonic in silk/cashmere one-bath dyeing

文章研究了在有、无超声波2种情况下蚕丝、羊绒及混纺织物的上染速率曲线和超声波用于丝／绒同浴染色提高同色性的可行性。用评定色差等级和测定表面深度K／S值的方法检验丝，绒同色性，并以Lanaset棕B为例，从染色时间、超声波频率、染色温度和阿白格FFA用量等方面进行分析和探讨，最终得到超声波的染色工艺为50℃入染，保温10min后以1℃／min升温到75℃，保温40min。阿白格FFA2％（owf），超声波频率为64kHz。染色后，丝／绒色差等级可达3-4级。

The exhaustion rate curves of silk, cashmere and silk/cashmere blended fabric, which were acquired under the dyeing condition with supersonic and without supersonic respectively, were studied. The feasibility of supersonic using in silk/cashmere one-bath dyeing to ameliorate the homo-chromaticity was analyzed. The homo-chromaticity of silk/cashmere was estimated by the grade d colour difference and the superficial depth （K/S）. From the aspects of dyeing time,supersonic frequency,dyeing temperature and concentration of Albagel FFA, the optimal dyeing process of Lanaset Brown B was obtained. The optimal process of Lanaset Brown B was dyeing started at 50 ℃ ,keeping 10 minutes,then the temperature raised 1 ℃/min to 75 ℃ ,dyeing with Albegal FFA（2%, owf） for 40 minutes, the supersonic frequency was 64 kHz. After dyeing, the grade of colonr difference reached 3 - 4.