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    • 48. 发明公开
    • Toner
    • 爽肤水
    • EP1450212A3
    • 2006-09-27
    • EP04004050.3
    • 2004-02-23
    • SAMSUNG ELECTRONICS CO., LTD.
    • Lee, Duck-heeEun, Jong-moon 101-1804 Dongsuwon LG Village
    • G03G9/08G03G9/097
    • G03G9/09708G03G9/08G03G9/097G03G9/09716G03G9/09725
    • A toner having toner particles containing a binder resin and a colorant; and a first external additive having 0.1 to 3.0 wt% of large silica particles with an average particle size of 20 to 200 nm; a second external additive having 0.1 to 3.0 wt% of small silica particles with an average particle size of 5 to 20 nm; a third external additive having 0.1 to 2.0 wt% of hydrophobic titanium dioxide microparticles with a resistance of 10 5 to 10 12 Ω.; and a fourth external additive having at least one of 0.1 to 2.0 wt% of conductive titanium dioxide particles with a resistance of 1 to 10 5 Ω. and 0.1 to 2.0 wt% of positively chargeable aluminium oxide particles. Therefore, a thin toner layer with a uniform toner amount is formed on a toner carrier and stable charge distribution and toner flowability are maintained for a long time, thereby resulting in prevention of fog and toner scattering, and improvements in developing efficiency and toner durability.
    • 具有含有粘合剂树脂和着色剂的调色剂颗粒的调色剂; 和第一外部添加剂,其具有0.1至3.0重量%的平均粒径为20至200nm的大二氧化硅颗粒; 第二外部添加剂,其具有0.1至3.0重量%的平均粒径为5至20nm的小二氧化硅颗粒; 具有0.1至2.0重量%的电阻为105至1012Ω的疏水性二氧化钛微粒的第三外部添加剂。 以及第四外部添加剂,其具有0.1至2.0重量%的导电二氧化钛颗粒中的至少一种,其电阻为1至105Ω。 和0.1至2.0重量%的可带正电荷的氧化铝颗粒。 因此,在调色剂载体上形成具有均匀调色剂量的薄调色剂层,并且长时间保持稳定的电荷分布和调色剂流动性,由此导致防止雾化和调色剂飞散,并提高显影效率和调色剂耐久性。