摘要
研究了超声波振动在传统非离子洗剂洗毛中的应用.实验中选用不同纤维直径的羊毛,不同洗毛时间和洗毛温度,试样经超声波振动或不经超声波振动.洗涤效果通过残脂率、纤维白度、产量和毡并率进行评估.同时使用扫描电子显微镜观察洗净毛,以评价超声波振动对纤维表面结构的影响.超声波振动处理中用较低的洗剂浓度即可达到传统洗毛过程的洗涤效果.对于细度为22μm的纤维,若用超声波洗毛法,可采用较低的洗毛温度50℃.超声波振动使洗毛过程中纤维不会产生纠缠.由于超声波振动使纤维表面变化,发生了一定程度的蚀刻.纤维的裂缝增加了40℃时含金属染料的上染速率.
This paper examined the application of ultrasonic agitation in conventional non-ionic detergent wool scouring. Wool samples with different mean fibre diameters were selected and subjected to various scouring times and temperatures with and without ultrasonic agitation. Scouring efficiency was assessed in terms of grease content, fibre whiteness, scouring yield and fibre entanglement. The scoured fibres were also examined under a scanning electron microscopy to evaluate the effect of ultrasonic agitation on the fibre surface structure. Ultrasonic agitation was seen to significantly improve the removal of grease from the wool fibre. Lower detergent concentrations could be used with ultrasonic agitation and still achieve the same level of scouring as conventional scouring. Lower scouring temperatures of 50℃ were feasible with ultrasonic agitation for 22 micron fibres. Ultrasonic agitation produced virtually no fibre entanglement during scouring. The fibre surface was modified by ultrasonic agitation causing moderate cracking of the fibre cuticle. The fibre cracking increased the rate of premetalised dye pick up at 40℃.
出处
《西安工程科技学院学报》
2007年第6期748-751,766,共5页
Journal of Xi an University of Engineering Science and Technology
关键词
超声波振动
洗毛
羊毛纤维
ultrasonic agitation
scouring
wool
fibre
