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Frequency dependence of ultrasonic wool scouring

机译：超声波羊毛精练的频率依赖性

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摘要

Conventional aqueous scouring of greasy wool promotes- wool felting and can be energy and water intensive. Ultrasonic wool scouring could be an alternative technology to minimise the negative impact, provided that the cleaning efficiency and fibre quality are not compromised. This study examined the influence of ultrasonic irradiation frequency and ultrasonic power variations on wool scouring performance at different liquor ratios. Scoured fibre, residual ash content, residual grease content, whiteness and yellowness were evaluated. The impact of liquor degassing on wool scouring effectiveness was studied. Fibre surface damage was also assessed in this work. It was observed that while there was no significant influence of ultrasonic frequency on the whiteness or yellowness of the scoured fibres, wool scoured at frequencies of 28 kHz and 80 kHz had more grease and dirt removed than that scoured at 45 kHz. Low ultrasonic power and degassed bath liquor increased wool grease removal ability. Ultrasonic treatment caused scale cracking/peeling in some wool fibres. More severe cuticle damage was observed in fibres scoured at the lower frequency. This damage resulted in increased dye uptake by the fibres.
机译：油腻羊毛的常规水性精练促进了羊毛的毡合，并且可能消耗大量的能量和水。超声波羊毛精练可以作为一种替代技术，以最大程度地减少负面影响，只要不影响清洁效率和纤维质量即可。这项研究检查了超声照射频率和超声功率变化对羊毛精练性能在不同液体比率下的影响。评价了冲刷纤维，残留灰分含量，残留油脂含量，白度和黄度。研究了酒液脱气对羊毛精练效​​果的影响。在这项工作中还评估了纤维表面损伤。观察到，虽然超声频率对煮练过的纤维的白度或黄度没有显着影响，但在28kHz和80kHz频率下洗涤的羊毛比在45kHz处洗涤的羊毛去除了更多的油脂和污垢。低超声波功率和脱泡浴液增加了羊毛脂的去除能力。超声波处理导致某些羊毛纤维结垢开裂/剥落。在以较低频率洗涤的纤维中观察到更严重的表皮损伤。这种损害导致纤维对染料的吸收增加。

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  • 来源
    《The Journal of the Textile Institute》 |2011年第6期|p.505-513|共9页
  • 作者

    Q. Li; C.J. Hurren; L.J. Wang; T. Lin; H.X. Yu; C.L. Ding; X.G. Wang;

  • 作者单位

    Centre for Material and Fibre Innovation, Deakin University, Geelong 3217, Australia;

    Centre for Material and Fibre Innovation, Deakin University, Geelong 3217, Australia;

    School of Fashion and Textiles, RMIT University, Brunswick 3056, Australia;

    Centre for Material and Fibre Innovation, Deakin University, Geelong 3217, Australia;

    Shangdong Ruyi Technology Group, Jining, Shangdong, China;

    Shangdong Ruyi Technology Group, Jining, Shangdong, China;

    Centre for Material and Fibre Innovation, Deakin University, Geelong 3217, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ultrasound; frequency; wool; scouring; fibre properties;

    机译：超声波频率;羊毛;精练纤维性质;

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