Study on Wiping Resistance of Micro Cloth with Ultrafine Bubble Water

When wiping and cleaning with micro cloths containing ultrafine bubble water, there have been several comments that the sensation of resistance during wiping is reduced. In this study, we quantitatively investigated the resistance during wiping by measuring the frictional force between the micro cloth and the floor surface when the micro cloth was moistened with ultrafine bubble water. In the experiment, static and dynamic frictional forces were measured for four different base materials when the micro cloths were pulled at a constant velocity with a loaded mass on the micro cloths containing tap water and ultrafine bubble water. As a result, although the frictional resistance reduction effect was confirmed for the SUS plate, the clear effect could not be confirmed for the melamine board. In addition, the friction reduction effect was greater for smaller roughness of the base metal surface, and the presence or absence of the effect differed depending on the tensile speed of the cloth and the loaded mass of the cloth. In this experimental range, the frictional drag reduction effect was obtained in the case of the mirror-finished SUS plate under the most conditions.