Electrostatic latent image developing toner

1. An electrostatic latent image developing toner, comprising

a plurality of toner particles each including a core and a shell layer covering a surface of the core, wherein

the shell layer includes a resin film and a plurality of resin particles,

the shell layer contains a first resin forming the resin film, a second resin forming the resin particles, and an alkyl benzene sulfonic acid compound,

the first resin is a polymer of monomers including at least one styrene-based monomer and at least one acrylic acid-based monomer,

the second resin is a polymer of monomers including at least one acrylic acid-based monomer and at least one monomer selected from the group consisting of pyridine compounds, pyridazine compounds, imidazole compounds, pyrazole compounds, and quaternary ammonium compounds, and

the second resin has a repeating unit capable of forming a salt with the alkyl benzene sulfonic acid compound.

2. The electrostatic latent image developing toner according to claim 1 , wherein

the shell layer contains p-toluenesulfonic acid or a derivative thereof as the alkyl benzene sulfonic acid compound.

3. The electrostatic latent image developing toner according to claim 2 , wherein

an amount of the alkyl benzene sulfonic acid compound contained in the shell layer is at least 50 ppm and no greater than 4000 ppm relative to a total mass of the electrostatic latent image developing toner.

4. The electrostatic latent image developing toner according to claim 1 , wherein

the second resin has at least one repeating unit derived from an electron-donating heteroaromatic compound as the repeating unit capable of forming a salt with the alkyl benzene sulfonic acid compound.

5. The electrostatic latent image developing toner according to claim 4 , wherein

the second resin has at least one repeating unit derived from a pyridine compound, a pyridazine compound, an imidazole compound, or a pyrazole compound, as the repeating unit derived from the electron-donating heteroaromatic compound.

6. The electrostatic latent image developing toner according to claim 1 , wherein

the second resin has at least one repeating unit derived from a quaternary ammonium compound as the repeating unit capable of forming a salt with the alkyl benzene sulfonic acid compound.

7. The electrostatic latent image developing toner according to claim 1 , wherein

the alkyl benzene sulfonic acid compound and the repeating unit capable of forming a salt with the alkyl benzene sulfonic acid compound are present in the form of a salt.

8. The electrostatic latent image developing toner according to claim 1 , wherein

a surface of the shell layer has a sea-like region and a plurality of island-like regions distributed like islands in the sea-like region,

the sea-like region is constituted by a portion of the resin film exposed at the surface of the shell layer, and

the island-like regions are constituted by portions of the resin particles exposed from the resin film.

9. The electrostatic latent image developing toner according to claim 8 , wherein

the first resin has a glass transition point of at least 60° C. and no greater than 75° C.,

the second resin has a glass transition point of at least 80° C. and no greater than 110° C.,

the core contains a polyester resin having a glass transition point of at least 20° C. and no greater than 55° C.,

the glass transition point of the first resin is at least 10° C. higher than the glass transition point of the polyester resin, and

the glass transition point of the second resin is at least 10° C. higher than the glass transition point of the first resin.