Ink, ink cartridge, ink-jet recording method, and method for preparing ink

摘要

An ink containing a plurality of organic pigments having hues forming an angle of 10 degrees or more with one another, wherein the bronze value B calculated by Formula 1 is 0.0 or more, and 12.0 or less, the saturation value C calculated by Formula 2 is 65.0 or more, and the 20-degree gloss value GB is 30.0 or more with respect to a predetermined recorded image recorded by the ink.

主权项

1. An ink comprising a plurality of organic pigments having hues forming an angle of 10 degrees or more with one another,
wherein the bronze value B calculated by Formula 1 described below is 0.0 or more, and 12.0 or less, the saturation value C calculated by Formula 2 described below is 65.0 or more, and the 20-degree gloss value GB is 30.0 or more with respect to a predetermined recorded image recorded by the inka45*=500⁡[f⁡(Xx45Xs45)-f⁡(Yx45Ys45)],⁢b45*=200⁡[f⁡(Yx45Ys45)-f⁡(Zx45Zs45)]⁢⁢B=(a45*2+b45*2)12Formula⁢⁢1wherein Xx45, Yx45, and Zx45 are tristimulus values of reflected light of illumination in the direction of specular reflection, the illumination is in the direction of an angle of 45 degrees to a normal to the image, Xs45, Ys45, and Zs45 are tristimulus values of illumination light under the same condition of the illumination, and these tristimulus values satisfy the following formulas:f⁢(Xx45Xs45)=(Xx45Xs45)13⁢⁢where⁢⁢Xx45Xs45>0.008856⁢⁢f⁡(Xx45Xs45)=7.78⁢Xx45Xs45+16116⁢⁢where⁢⁢Xx45Xs45≤0.008856⁢⁢f⁡(Yx45Ys45)=(Yx45Ys45)13⁢⁢where⁢⁢Yx45Ys45>0.008856⁢⁢f⁡(Yx45Ys45)=7.78⁢Yx45Ys45+16116⁢⁢where⁢⁢Yx45Ys45≤0.008856⁢⁢f⁡(Zx45Zs45)=(Zx45Zs45)13⁢⁢where⁢⁢Zx45Zs45>0.008856⁢⁢f⁢(Zx45Zs45)=7.78⁢Zx45Zs45+16116⁢⁢where⁢⁢Zx45Zs45≤0.008856a0*=500⁡[f⁡(Xx0Xs0)-f⁡(Yx0Ys0)],⁢b0*=200⁡[f⁡(Yx0Ys0)-f⁡(Zx0Zs0)]⁢⁢C=(a0*2+b0*2)12Formula⁢⁢2wherein Xx0, Yx0, and Zx0 are tristimulus values of reflected light of illumination in the direction of a normal to the image, the illumination is in the direction of an angle of 45 degrees to the normal, Xs0, Ys0, and Zs0 are tristimulus values of illumination light under the same condition of the illumination, and these tristimulus values satisfy the following formulas:f⁡(Xx0Xs0)=(Xx0Xs0)13⁢⁢where⁢⁢Xx0Xs0>0.008856f⁡(Xx0Xs0)=7.78⁢Xx0Xs0+16116⁢⁢where⁢⁢Xx0Xs0≤0.008856f⁡(Yx0Ys0)=(Yx0Ys0)13⁢⁢where⁢⁢Yx0Ys0>0.008856f⁡(Yx0Ys0)=7.78⁢Yx0Ys0+16116⁢⁢where⁢⁢Yx0Ys0≤0.008856f⁡(Zx0Zs0)=(Zx0Zs0)13⁢⁢where⁢⁢Zx0Zs0>0.008856f⁡(Zx0Zs0)=7.78⁢Zx0Zs0+16116⁢⁢where⁢⁢Zx0Zs0≤0.008856. wherein the plurality of organic pigments are two types of pigments of a pigment A and a pigment B, and with respect to individual predetermined recorded images recorded by a first control ink containing only the pigment A as a coloring material and a second control ink containing only the pigment B as a coloring material, the relationships BA>BB and GBA