Abstract
Recently, there has been research into drying by applying an ultrasonic vibrator directly to wet clothes. However, this method may damage the fabric and decorations of clothing because the ultrasonic vibrator is in direct contact with the wet clothing. Therefore, we would like to dry wet clothes without contact using an aerial intense ultrasonic wave. In this paper, an intense standing wave sound field was formed in the air using two sets of transverse vibrating plate type ultrasonic sound sources, and a cloth larger than the wavelength of the sound wave in the ultrasound field was dried. We compared the moisture content on dry basis, drying rate, and drying time of the drying samples, and determined the differences in drying effect depending on differences in the installation position of the drying samples in the ultrasound field.
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