GREENISH BLUE PIGMENT, COLORANT COMPOSITION CONTAINING SAID PIGMENT, AND IMAGE RECORDING MATERIAL
申请人:Dainichiseika Color & Chemicals Mfg. Co., Ltd.
公开号:EP2735591A1
公开(公告)日:2014-05-28
An object is to overcome the drawbacks of conventional blue phthalocyanine pigments upon the formation of images, and to develop a blue pigment that can satisfactorily exhibit a greenish blue color high in chroma and excellent in colorfulness, brightness, dispersibility, hue, tintingpower and the like and that is applicable to various image recording methods. The obj ect can be achieved by a greenish blue pigment, which exhibits a greenish blue hue of high chroma and contains a pigment represented by the following formula (I):
wherein the number, m, of substituent phthalimidomethyl group(s) is in a range of 1.0≤m≤5.0, and the number, n, of a substituent sulfonic group R1 is in a range of 0.05≤n≤1.0.
目的是克服传统蓝色酞菁颜料在形成图像时的缺点,开发出一种蓝色颜料,它能令人满意地呈现出高色度的青蓝色,并且在着色力、亮度、分散性、色调、着色力等方面表现优异,适用于各种图像记录方法。本发明的目标可以通过一种青蓝色颜料来实现,该颜料具有高色度的青蓝色调,并含有下式 (I) 所表示的颜料:
其中,取代基邻苯二甲酰亚胺甲基的数目 m 在 1.0≤m≤5.0 的范围内,取代基磺酸基 R1 的数目 n 在 0.05≤n≤1.0 的范围内。