Abstract: On a golf ball surface, a marking layer is formed from an ink having a lightness of up to 60 based on the Lab color space, and a transparent or translucent layer containing a pigment having an optical interference effect and capable of selectively reflecting and transmitting light is formed on the marking layer. The golf ball has the unique marking entailing the color flop effect that the color appearance varies over the iridescent spectrum with the viewing angle.

Abstract: The aqueous coating composition of the present invention can form a high crosslink density owing to the high hydroxyl value, contains a soft urethane structure and alicyclic structure possessed by the water-soluble urethane polyol and the water-dispersible urethane resin, and also contains tough isocyanurate ring structures possessed by the water-dispersible acrylic resin and the hydrophilic polyisocyanate; accordingly, can give a coating film which is high in impact resistance, abrasion resistance, contamination resistance, etc., which has properties equivalent to those possessed by the films produced from organic solvent type coatings, and which has high durability; therefore, is most suitable for coating a golf ball to be hit by a golf club. A golf ball coated with the aqueous coating composition of the present invention is free from cracking or film peeling when hit by a golf club; is low in scratch, abrasion and contamination with grass sap; therefore, can retain gloss and fine appearance.

Abstract: The aqueous coating composition of the present invention can form a high crosslink density owing to the high hydroxyl value, contains a soft urethane structure and alicyclic structure possessed by the water-soluble urethane polyol and the water-dispersible urethane resin, and also contains tough isocyanurate ring structures possessed by the water-dispersible acrylic resin and the hydrophilic polyisocyanate; accordingly, can give a coating film which is high in impact resistance, abrasion resistance, contamination resistance, etc., which has properties equivalent to those possessed by the films produced from organic solvent type coatings, and which has high durability; therefore, is most suitable for coating a golf ball to be hit by a golf club. A golf ball coated with the aqueous coating composition of the present invention is free from cracking or film peeling when hit by a golf club; is low in scratch, abrasion and contamination with grass sap; therefore, can retain gloss and fine appearance.