Abstract: The present invention provides a method for manufacturing water-using household equipment of which hydrophilicity, surface hardness and appearances are good and the water-using household equipment. The water-using household equipment includes a coat including silicic acid, and a coat constituted by composition of 44 to 97% by mass of Si by SiO2 conversion, 0.2 to 17% by mass of Li by Li2O conversion and 2.4 to 49% by mass of Na by Na2O conversion on the coat including the silicic acid on a surface of a substrate. The method for manufacturing water-using household equipment includes: a surface treatment step of treating at least a surface of the substrate contacting water or contacting a water vapor atmosphere with a coating agent including silicic acid and forming a surface treatment layer; and an application step of forming an application layer on the surface treatment layer by applying an aqueous solution including 1 to 20 mass portions of Si by SiO2 conversion, 0.05 to 0.

Abstract: Not only when tableware and vessels have a point contact, but also when they have a surface contact and line contact, abrasions caused thereby are made visually less noticeable and performance of cleaning soil deposited on the surface is improved. In a surface protection structure for protecting the surface of a water-depositable member, such as the sink of a system kitchen, an embossed pattern is formed by a plurality of hemispherical projections protrusively provided on a smooth bottom face, and the embossed pattern is subjected to surface finishing with good removing property of stains. At this time, an interval between those projections which are adjoining in at least one direction and/or an interval between those projections which are adjoining in another direction orthogonal to the one direction may be set to 2.0 to 10.0 mm.