▎ 摘　　要

NOVELTY - Manufacture of domestic sink involves (i) preparing a wood raw material and a functional composition having moisture-proofing and mold-inhibiting effects, (ii) mixing the wood raw material, functional composition and a thermosetting adhesive and molding, (iii) impregnating surface of the molded wooden board with an environmentally-friendly oil through infiltration, (iv) cutting, (v) applying the oil to the surface of the cut surface of the wooden board, and (vi) bonding and assembling the cut board with a bond harmless to the human body or an industrial iron component to form an external frame for manufacturing a sink. The process (iii) includes sanding process (S100), hot air heating process (S200), environmentally-friendly oil impregnation process (S300), undercoating process (S400), environmentally-friendly adhesive coating process (S500), top coating process (S600), top coating process (S700), printing process (S700a) and ultraviolet irradiation process (S800). USE - Manufacture of domestic sink (claimed) e.g. kitchen sink. ADVANTAGE - The method enables manufacture of household sink having excellent moisture-proof and insect-proof properties. DETAILED DESCRIPTION - Manufacture of domestic sink involves (i) preparing a wood raw material and a functional composition having moisture-proofing and mold-inhibiting effects, (ii) mixing the wood raw material, the functional composition and a thermosetting adhesive and molding, (iii) impregnating surface of the molded wooden board with an environmentally-friendly oil through infiltration, (iv) cutting the wooden board into a panel shape for making a sink, (v) applying the environmentally-friendly oil to the surface of the cut surface of the wooden board, and (vi) bonding and assembling the cut board with a bond harmless to the human body or an industrial iron component to form an external frame for manufacturing a sink. The process (iii) includes sanding process (S100), hot air heating process (S200), environmentally-friendly oil impregnation process (S300), undercoating process (S400), environmentally-friendly adhesive coating process (S500), top coating process (S600), top coating process (S700), printing process (S700a) and ultraviolet irradiation process (S800). The process (S100) involves cleaning surface of the wooden board to remove dust, oil stains, paint, adhesive material stains and foreign substances using a sandpaper and a sanding machine. The process (S200) involves removing moisture from the surface through hot air heating by placing in a hot air heating chamber having a temperature of 180-250° C for 45-75 minutes. The processes (S100,S200) further involve performing engraving, embossing and openwork on the wooden board. The process (S300) involves using a roller-type or brush-type coating device comprising soft wool or cloth as outer surface, as a painting tool to impregnate the wooden board with the environmentally-friendly comprising 2-3 pts. wt. oil mixture comprising silicone oil, aromatic base oil and paraffin base oil in a ratio (pts. wt.) of 1:1:0.5, with respect to 100 pts. wt. of citrus oil mixed with insect repellent oil, and repeating the above process based on the natural color and grain of wood in order to highlight and ensure the efficiency and durability of water repellency and insect repellency, preferably three times for 45-50 m2per 10 l, and drying for 3-24 hours. The process (S400) involves mixing polyhydric alcohol and polybasic acid in a ratio (pts. wt.) of 35-45:45-55 and reacting with 2-3 pts. wt. polyamine to obtain an amine-modified unsaturated polyester resin, mixing 100 pts. wt. amine-modified unsaturated polyester resin, 6-7 pts. wt. dipentaerythritol polyacrylate and 10-13 pts. wt. trimethylolpropane triacrylate and polymerizing to prepare a modified unsaturated polyester resin, mixing 100 pts. wt. modified unsaturated polyester resin, 2-3 pts. wt. graphene fibers and 4-5 pts. wt. cellulose nanofibers, and mixing to obtain a undercoating composition, applying to the outer surface of the wooden board and completely curing the undercoating composition.