A coloured coating composition comprising a white base paint and at least one coloured pigment in a form that can be readily mixed with the white base paint, the white base paint comprising a film-forming polymer, a liquid carrier, one or more opacifying white pigments and one or more extenders, the coloured coating composition having a light reflectance value Y less than 110, and greater than that defined by the equation Y = mC + K, where 25 > C > 1.0, C being the chroma of the coloured coating composition, m and K being empirical coefficients selected according to the type and number of the type of the at least one coloured pigment, and dependant on the hue angle of the coating composition (Figure 1).
一种彩色涂料组合物,包括白色基底涂料和至少一种易于与白色基底涂料混合的彩色
颜料,白色基底涂料包括成膜聚合物、液体载体、一种或多种不透明白色
颜料和一种或多种扩展剂,该彩色涂料组合物的光反射率值 Y 小于 110,且大于公式 Y = mC + K 所定义的值,其中 25 > C > 1.0,C 是彩色涂层组合物的色度,m 和 K 是根据至少一种彩色
颜料的类型和数量选择的经验系数,并取决于涂层组合物的色调角(图 1)。