Bright coating composition and method for forming multilayer coating film

The purpose of the present disclosure is to provide a glitter coating composition which, not only in robot coating but also in coating using a liquid ejection head for controlling ejection by changing the relative distance between a valve body and an ejection port, forms a coating film having excellent metallic color gloss and less susceptible to generation of spots. The brilliant coating composition of the present disclosure has the following composition. A brilliant coating composition containing water, a scale-like aluminum pigment (A), and nanocellulose (B), the scale-like aluminum pigment (A) having a volume average particle diameter of d50 in the range of 0.5-8.0 [mu] m and d90 in the range of 2.0-15.0 [mu] m, the brilliant coating composition being characterized in that: the scale-like aluminum pigment (A) has an average particle diameter of d50 in the range of 0.5-8.0 [mu] m and a volume average particle diameter of d90 in the range of 2.0-15.0 [mu] m; 本公开的目的在于，提供一种光亮性涂料组合物，该光亮性涂料组合物不仅在机器人涂装中，而且在使用了通过