| 摘要 |
The present invention relates to a toner which includes a crystalline resin; has enhanced stability for storing an outputted image by having improved durability to mechanical impact; may obtain an image with high image quality for a long time by reducing a break and a cutout, preventing contamination of a material and clogging of the toner; and may reduce the needs of maintenance of an electronic image device. The toner of the present invention has a toner particle including a binder resin. The binder resin contains a block polymer, in which a crystalline polyester resin and an amorphous polyurethane resin are chemically bonded, as a principal component. The binder resin of the toner of the present invention contains the specific amount of the crystalline polyester resin, and has 5.2 mmol/g or less of binding concentration of an ester derived from the crystalline polyester resin in the binder resin. The toner of the present invention has a specific value of a maximum value represented by E_(MAX) of a flexural modulus represented by E, obtained from a 3-grade bending test, and deformation energy represented by u. |
