Method for producing electroconductive particles

A method for producing a conductive fine particle,

• which comprises forming a plating layer on the surface of an organic resin fine particle having a conductive base layer on the surface using a barrel plating apparatus having a rotatable barrel in a plating bath,
• said method comprising putting the organic resin fine particle and a dummy particle in the barrel and forming a plating layer while vibrating the barrel at an amplitude of 0.05 to 3.0 mm and a frequency of 20 to 120 Hz,
• wherein the organic resin fine particle is made of at least one resin selected from the group consisting of network structure polymer, thermosetting resin and elastic body,
• wherein the dummy particle has a particle diameter of 2 to 50 times as large as that of the organic resin fine particle and a specific gravity of 1.0 to 12.0 times as heavy as that of the organic resin fine particle,
• wherein a feed amount of the fine particle to be plated into the barrel is 10 to 60% by volume of the capacity of the barrel,
• a feed amount of the dummy particle into the barrel is 10 to 70% by volume relative to the total of the feed amount of the fine particle to be plated and the feed amount of the dummy particle, and
• a volume of the mixture of the fine particle to be plated and the dummy particle fed into the barrel is 10 to 60% by volume of the capacity of the barrel.