Polyester-based resin particles, process for producing same, and use thereof

Polyester-based resin particles comprising a polyester-based resin as a base resin,

• wherein
• said base resin exhibits a plurality of endothermic peaks corresponding to crystal melting temperatures by DSC measurement,
• at least one of said endothermic peaks exists in each region of a low temperature side region and a high temperature side region,
• a maximum endothermic peak of said low temperature side region and a maximum endothermic peak of said high temperature side region exhibit a crystal melting heat amount ratio (low temperature side crystal melting heat amount/high temperature side crystal melting heat amount) in a range of 0.1 to 1.5, said polyester-based resin particles have a volume average particle diameter of 1 to 50 μm, and said polyester-based resin particles have a crystallization degree of 30 to 50% and do not contain thread-like particles.