Honda Motor Co., Ltd.

Sankei Giken Kogyo Co., Ltd.

Solize Corporation

Takashi Inomata

Daisuke Sato

Hiroyuki Ikeno

Kazuo Igarashi

Ryota Masuda

Kohei Mutai

Satoru Nishimoto

A method for producing a resin sintered bodyby applying an inkto thermoplastic resin powderand sintering the powder, the method including the step of immersing an intermediate resin sintered body, which has an unevenly colored region on the surface thereof and the whole of which has been already sintered, in a surface treatment liquid containing sulfuric acid and chromic anhydride, in which the concentration of chromic anhydride is 300 g/L or more, for 5 minutes or longer. When producing a resin sintered body by sintering thermoplastic resin powder, the surface of the resin sintered body can be evenly and sufficiently colored to an extent required without an unevenly colored region on the surface thereof, and also the surface of the resin sintered body can have a good appearance and smoothness.

Method for producing resin sintered body

Growing community of inventors

Tokyo, Japan

Takashi Inomata