DRIED C.I. PIGMENT RED 57:1, DRIED PIGMENT COMPOSITION AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a pigment composition comprising a dried C.I. pigment red 57:1 or rosins, and a C.I. pigment red 57:1, which can be dispersed into a medium to be colored even in a dry condition using a lower power and within a shorter period of time, and can exhibit similar or more excellent coloring characteristics than in a case of using a conventional dried pigment or pigment composition for coloring. SOLUTION: The dried pigment composition comprising the dried C.I. pigment red 57:1 or rosins and the C.I. pigment red 57:1, wherein a BET specific surface area measured by a nitrogen adsorption method is 60-110 m2/g, and a total volume of pores having a diameter of 0.1-3.0 μm measured by a mercury penetration method is 1.30-2.00 ml/g. COPYRIGHT: (C)2006,JPO&NCIPI