An electrostatic image developing toner is disclosed, comprising a resin and a colorant, wherein the toner contains at least one iminocarboxylic acid or its salt in an amount of from 26 to 388 ppm by mass.
Description
BRIEF EXPLANATION OF THE DRAWINGS
FIG. 1 illustrates the section of a developing device used for a nonmagnetic monocomponent developer.
FIG. 2 illustrates the section of an example of a full-color image forming apparatus using the toner of the invention.
Claims
1. An electrostatic image developing toner comprising a resin and a colorant, wherein the toner contains at least one iminocarboxylic acid or its salt in an amount of 26 to 338 ppm by mass.
2. The toner of claim 1, wherein the iminocarboxylic acid is at least one selected from the group consisting of the following compounds:
3. The toner of claim 2, wherein the toner contains at least one selected from the group consisting of compounds (8-3), (9-2) and (9-3) or its sodium salt.
4. The toner of claim 1, wherein the toner contains a sodium element in an amount of 1 to 134 ppm by mass.
5. The toner of claim 1, wherein the toner contains a divalent or trivalent metal element in an amount of 300 to 1800 ppm by mass.
6. The toner of claim 5, wherein the divalent or trivalent metal element is at least one of the group consisting of calcium, magnesium, manganese, copper, zinc, aluminum and iron.
7. The toner of claim 1, wherein the toner contains a sodium element in an amount of 1 to 134 ppm by mass and a divalent or trivalent metal element in an amount of 300 to 1800 ppm by mass.
Patent Application
20070190445
