Method for producing plated component, plated component, catalytic activity inhibitor and composite material for electroless plating

A method for producing a plated part, comprising:

• forming, on a surface of a base member, a catalyst activity inhibiting layer containing a dendritic polymer which has an aromatic ring and at least one of an amide group and an amino group wherein the dendritic polymer is represented by the following formula (1),
• in the formula (1),
• A1 is a group containing an aromatic ring, A2 is a group containing sulfur or an amino group,
• R1 is a single bond or a substituted or unsubstituted alkylene group having 1 to 5 carbon atoms, each of R2 and R3 is hydrogen or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, and
• m1 is in a range of 1 to 10, and n1 is in a range of 5 to 100;
• irradiating with light or heating a part of the surface of the base member on which the catalyst activity inhibiting layer is formed;
• applying an electroless plating catalyst to the surface of the base member heated or irradiated with the light;
• and
• bringing an electroless plating solution into contact with the surface of the base member to which the electroless plating catalyst is applied, to form an electroless plating film at a light-irradiated portion or a heated portion of the surface.