Abstract

Ali rezaghasemi ¹, Safdar eskandarnejad¹, Raminkhajavi² and Mohammad Bameni Moghadam³ 

DOI : http://dx.doi.org/10.13005/ojc/320456

Up to now, the most conventional methods for descaling of wool fibre are based on chemical degradation and resin covering of scales or a combination of them. These methods are producing wastewater and can cover physical properties of the fibres beside scales orderly.  In this study, a new and clean method is developed on the basis of abrasion effect of calcium carbonate Nano particles (CCNP) in an ultrasonic bath. Woolen Samples (fibre and yarn) were sonicated with different levels of CCNP. Tensile properties of the yarns, directional friction effect of the fibres and scanning electron microscope images of the fibres were studied. Test results showed that sonicated Nano treatment of woolyarn reduced its tenacity, extension and work of rupture and increased its coefficient of friction. Scanning electron microscope images of fibres and measurement of fibres directional displacement confirmed descaling of Nano abrasive treated wool samples in comparison to the raw wool. 

Wool; Descaling; Nano abrasive CaCO3; Ultrasonic; tenacity; directional friction; SEM

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