| abstract |
A multi-layer coating film formation method comprising heating an uncured color coating film, an uncured glittering coating film and an uncured clear coating film which are respectively formed by coating a color coating material (X), a glittering pigment dispersion (Y) and a clear coating material (Z) in this order on a material of interest and then curing the three coating films simultaneously, wherein the glittering pigment dispersion (Y) comprises water, a surface modifier (A) having a contact angle of 8 to 20º under a specific condition, a scale-like glittering pigment (B) and a viscosity modifier (C) and has such a property that a film produced by coating the glittering pigment dispersion (Y) in such a manner that a dried form of the film can have a thickness of 0.2 µm has a transmittance of light having a wavelength of 550 nm of 10 to 50%. |