69 results about "Solid density" patented technology

In a method of and a system for predicting print colors, a profile generator corrects the standard spectral reflectances of a color chart printed under standard density conditions and the differences between the spectral reflectances of color charts for the respective colors in which the density of one of the colors C, M, Y, K is changed to a changed density setting value and the densities of the other colors are fixed to standard density setting values, using density differences with the standard density setting values which are calculated by a monochromatic solid density calculator. The profile generator then generates a print predicting profile for desired target densities based on the corrected corrective standard spectral reflectances and the spectral reflectance differences, and highly accurately predicts the colors of a print using the print predicting profile when the densities of desired ones of the colors are changed.

The invention discloses a Multi-mixed and coated high compaction density silicon carbon anode material and a preparation method thereof, overcomes the defects that the surface of a silicon carbon material at the present is non-uniformly coated and is hardly intact, and solves the problem that the compaction density of a silicon carbon anode is hard to increase by means of a simple method. The silicon carbon anode material comprises primary particles and secondary particles, wherein the primary particles are porous silicon carbon materials; porous silicon is uniformly dispersed in activated carbon, and the surfaces of the porous silicon and the activated carbon are coated with a pyrolytic carbon coating layer having a thickness of 3 to 50 nm; the porous silicon accounts for 5 to 50 percentby mass of the primary particles, and the activated carbon accounts for 20 to 30 percent by mass of the primary particles; the pyrolytic carbon accounts for 20 to 75 percent by mass of the primary particles; the secondary particles are agglomerates formed by uniformly dispersing the primary particles and graphite in the pyrolytic carbon, and have a particle size of 5 to 100 [mu]m; the total carboncontent of the silicon carbon anode material is 80 to 90 percent; and the compaction density is 1.1 to 1.7 g / cm<3>.