Fluorescent colorant compositions contain a pigment and a resin. The pigment is a crystalline, azo-based, fluorescent pigment obtained from a coupling reaction of a specific diazo compound, which was obtained from a particular aromatic amine, with a particular acetoacetylamino-containing aromatic coupler. As crystalline characteristics of the crystalline, azo-based, fluorescent pigment, the ratio (h/w) of a height (h) of a maximum peak to its half-value width (w) in a diffraction angle (20) range of from 5 to 35° in an x-ray diffraction spectrum of the pigment may preferably be 20 or greater. Also disclosed are coloring processes and colored articles, which make use of the fluorescent colorant compositions.
荧光
着色剂组合物含有一种
颜料和一种
树脂。
颜料是一种结晶型偶氮基荧光
颜料,由特定的重氮化合物与特定的含乙酰乙酰
氨基的芳香族
偶联剂偶联反应而得。作为结晶型偶氮基荧光
颜料的结晶特性,在
颜料的 X 射线衍射谱中,在 5 至 35°的衍射角(20)范围内,最大峰的高度(h)与其半值宽度(w)之比(h/w)最好为 20 或更大。此外,还公开了利用荧光
着色剂组合物的着色工艺和有色物品。