Toner, developer, and image forming apparatus

1. A toner, comprising:

toner particles,

wherein the toner particles contain:

a non-crystalline resin; and

a crystalline resin,

wherein the crystalline resin contains a crystalline resin C containing a urethane bond, or a urea bond, or both thereof,

wherein the toner particles each have a sea-island structure, where the resin C is dispersed in the non-crystalline resin on a cross-section of the toner particle, and

wherein an aspect ratio of the resin C dispersed on the cross-section is from 1.2 to 2.

2. The toner according to claim 1 , wherein the resin C dispersed on the cross-section has an average particle diameter of 50 nm to 500 nm.

3. The toner according to claim 1 , wherein an area of the resin C dispersed on the cross-section is less than 50% or less relative to an entire area of the toner particle.

4. The toner according to claim 1 , wherein an area of the resin C dispersed on the cross-section is 10% to 45% relative to the whole toner particle.

5. The toner according to claim 1 , wherein the resin C has a melting point of 40° C. to 70° C.

6. The toner according to claim 1 , wherein the toner particles further contain a releasing agent having a melting point of 60° C. to 85° C.

7. The toner according to claim 6 , wherein an ethyl acetate soluble component in the releasing agent at 50° C. is less than 10% by mass.

8. The toner according to claim 1 , wherein a component represented by the following general formula (1) is 0 mol % to 10 mol % relative to an alcohol component constituting the non-crystalline resin:

HO—(R1-O) n —C 6 H 4 —C(CH 3 ) 2 —C 6 H 4 —(R2-O) m —OH   General Formula (1)

where R1 and R2 are each C2-C4 divalent saturated hydrocarbon coupling group, and n and m are each a positive number of 1 to 2.

9. A developer, comprising:

a carrier; and

the toner according to claim 1 .