HIGH FLUIDITY TITANIUM OXIDE, METHOD FOR MANUFACTURING THE SAME AND TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT TO WHICH THE HIGH FLUIDITY TITANIUM OXIDE HAS BEEN ADDED AS EXTERNAL ADDITIVE

摘要

PPROBLEM TO BE SOLVED: To provide a high fluidity titanium oxide suitable for obtaining toner for electrostatic latent image development having good fluidity, ensuring small environmental variation of charging performance and stably giving a high sharpness image, and to provide a toner for electrostatic latent image development having the above properties by adding the high fluidity titanium oxide as an external additive. PSOLUTION: The high fluidity titanium oxide is obtained by dry-mixing a titanium oxide having an average primary particle diameter of 5-100 nm hydrophobed with an organic substance and silica having an average primary particle diameter of 5-40 nm manufactured by a gas phase method in a silica to titanium oxide ratio of 0.5-20 mass%. The toner for electrostatic latent image development is obtained by adding the high fluidity titanium oxide as an external additive. PCOPYRIGHT: (C)2006,JPO&NCIPI