PARTICLE DISCRIMINATOR, PARTICLE DISCRIMINATION METHOD AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a particle discriminator for discriminating a pigment particle for preparing ink of high quality, a particle discrimination method and a program.;SOLUTION: The particle discriminator 100 for discriminating the pigment particles contained in ink includes a specific surface area measuring part 102 for measuring a specific surface area S per the unit weight of the particle, a particle size measuring part 106 for measuring the particle size of the particle, a number measuring part 108 for measuring the number N of particles per the unit weight of the particle, a sphericity calculation part 114 for calculating sphericity from the specific surface area S measured in the specific surface area measuring part 102, the particle size (r) measured in the particle size measuring part 106 and the number N measured in the number measuring part 108 using formula (1): sphericity=S/(N×r²) and a discrimination part 116 for discriminating the particles on the basis of the sphericity calculated in the sphericity calculation part 114.;COPYRIGHT: (C)2006,JPO&NCIPI