Patent ID: 6984420

Claim:
A method for color matching which comprises selecting two or more powder coatings having different colors from each other to provide a combination of powder coatings for a target color, wherein lightness, blending weight ratio and volume-average particle size of the powder coatings to be combined satisfy the formula (I): ∑ i = 1 N ⁢ ⁢  L 0 - L i  × W i × D i ≦ 1 ⁢ ⁢ 9 ⁢ ⁢ 0 ( I ) wherein N is a number of powder coatings to be combined, which is an integer of 2 or more, L 0 is lightness of a target color, L i is lightness of an “i”th powder coating to be combined, W i is a blending weight ratio of an “i”th powder coating to be combined (0<W i <1), D i is a volume-average particle size (μm) of an “i”th powder coating to be combined.