Principle of Ultrasonic Washing and Optimal Washing Conditions 


Vol. 58,  No. 6, pp. 281-289, Dec.  2021
10.12772/TSE.2021.58.281


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  Abstract

Ultrasound produces cavitation bubbles and microstreams when generated in water to clean dirty laundry without wrinkling. This study examined the conditions for the effective ultrasonic washing of fabrics. The ultrasonic power, temperature, washing time, and liquor ratio were varied, and an oily soiled cloth was used to evaluate the detergency. The detergency of ultrasonic washing increased as the ultrasonic intensity and temperature increased from 2.7 mV to 5.1 mV, and 25 °C to 60 °C, respectively. The detergency increased from 10 min to 20 min, but decreased after 40 min. The longer the washing time, the greater the soil redeposition. The liquor ratio only affected the detergency at an ultrasonic intensity of over 4.3 mV. The detergency also increased with the liquor ratio. Therefore, for effective ultrasonic washing, increasing the ultrasonic intensity is more effective than increasing the temperature. Moreover, the washing time should not be too long.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)