To provide a method for separating coating resin of a carrier surely removing the coating resin of the carrier by a method with a little environmental impact without deteriorating the characteristics of a core material and capable of recycling the core material.
The method for treating an electrophotographic carrier includes to treat the electrophotographic carrier comprising at least a core material and a coating resin, with supercritical pure water that is formed by bringing pure water or ultrapure water of electric conductivity at (25°C) of 1.00 μS.cm or less into a supercritical state, so that the coating resin is separated from the core material. This method for separating the coating resin of the electrophotographic carrier includes: fluidizing or/and moving the carrier and the supercritical water by fluidizing or/and moving means in the treatment; and washing and separating acquired coating resin residuals on the core material with water including microbubbles or nanobubbles.
SHIMIZU TAKAYUKI
YAGI SHINICHIRO
YASHIRO MASAKAZU
KONDO HIROSHI
SAKO TAKESHI
OKAJIMA IZUMI
UNIV SHIZUOKA NAT UNIV CORP
| JP2007206614A | 2007-08-16 | |||
| JP2001290311A | 2001-10-19 | |||
| JP2011209357A | 2011-10-20 | |||
| JP2008306175A | 2008-12-18 | |||
| JP2008244420A | 2008-10-09 |
Norio Kagami