| 摘要 |
PROBLEM TO BE SOLVED: To improve low temperature fixability, blocking resistance and printing durability of toner, to provide a binder resin containing an ester wax for improving low temperature fixability, blocking resistance and printing durability, and to provide toner containing the binder resin and having excellent low temperature fixability, blocking resistance and printing durability. SOLUTION: The following polyglycerin fatty acid ester is used as an ester wax improving low temperature fixability, blocking resistance and printing durability of a toner. The polyglycerin fatty acid ester contains a saturated fatty acid having 16 to 22 carbon atoms as a structural fatty acid and has a hydroxyl number of 12 to 30 mgKOH/g. By compounding the polyglycerin fatty acid ester with the toner, the low temperature fixability, blocking resistance and printing durability of the toner are improved. COPYRIGHT: (C)2010,JPO&INPIT |
