| 摘要 |
PURPOSE:To provide the color toner kit contg. a black toner having the sharp meltability and glossiness equiv. to the sharp meltability and glossiness equiv. of chromatic colors and excellent color mixability. CONSTITUTION:The temps. TC and TBK at which the viscosity of the binder resins used for the chromatic toners and the black toner attains 10<5> poises satisfy the following equation: 120>TC>=TBK+4>70. TC: the temp. ( deg.C) at which the resin to be used for the chromatic toners attains 10<5> poises, TBK: the temp. ( deg.C) at which the resin to be used for the black toner attains 10<5> poises,. This toner kit contains the magnetic coloring agents in which the content of FeO is 25 to 30wt.% of the entire magnetic coloring agent at 10 to 60wt.% of the total black toner content in the black toner. |
