| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for packing toners to obtaine image quality adequate in use which lessens the possibility of generating coarse powder (the aggregation of the toners) and improves the preservable property and flow property of the toners when the toners obtained by various kinds of manufacturing methods are packet by increasing their bulk density. SOLUTION: The toners are packed while the toners are subjected to a deaeration treatment under reduced pressure. The degree of pressure reduction in the deaeration treatment is preferably -15,000 to -50,000 Pa.</p> |
