Patent ID: 9581925
Date: 2017-02-28
CPC Classifications: G03G

Claim:
1. A liquid developer comprising an insulating liquid and toner partices dispersed in said insulating liquid, wherein said toner particles have a core-shell structure that first resin particles containing a first resin are attached to or cover surfaces of second resin particles containing a second resin, heat of fusion with differential scanning calorimetry of said second resin satisfies where H1 represents heat of fusion (J/g) at initial temperature increase with differential scanning calorimetry of said second resin and H2 represents heat of fusion (J/g) at second temperature increase with differential scanning calorimetry of said second resin, wherein said toner particles have a spherical shape, wherein said toner particles have an average value of circularity not smaller than 0.92 and not greater than 1.0, and wherein said second resin comprises a repeating unit derived from a monomer of an aliphatic dicarboxylic acid or aliphatic diol, the monomer having at least 4 carbon atoms and having a straight-chain alkyl skeleton.