Composition for expression 10G 7/2 pigment and technical method for preparing color characterization matter using thereof

The invention discloses a combination of 10G 7/2 dye and a technical method which takes the combination to prepare a color characterization matter. The combination consists of the following components by weight proportion: 995 to 1005 portions of CSC-C base; 1.10 to 1.16 portions of PG7 with the dye content of 20 percent; 0.24 portion of PBK7 with the dye content of 9 percent; 1.02 portions of PY42 with the dye content of 60 percent; 49.0 to 51.2 portions of PW6 with the dye content of 65 percent. The main component of the CSC-C base is acrylic copolymer; the content is 35 to 45 percent; the contrast ratio of the base is 0.20 to 0.40; the Stormer viscosity is 90 to 100KU; when the incident angle is 85 degrees, the lustrousness is 5 to 10. The color characterization matter has excellent resistance to elements and stability as well as good ratio reproducibility; the materials used and the technical flow accord with the demands and standards for environment protection of low VOC and zero VOC; compared with the standard value of the national standard theoretical mode in Chinese Color System, the color difference of the color characterization matter is small; the accurate degree of realizing color is high; the color characterization matter can be widely applied in a plurality of fields related to color.