Manufacturing method of conductor, manufacturing method of electromagnetic wave shielding body, and conductor

A manufacturing method of a conductor, comprising:

• an ink preparation step of preparing a first ink containing at least a metal salt or a metal complex and a second ink containing at least a metal salt or a metal complex;
• a step 1 of forming a first coating film on a substrate using the first ink, and subjecting the first coating film to at least one first curing treatment selected from the group consisting of a heating treatment to form a first conductive film;
• and
• a step 2 of forming a second coating film on the first conductive film using the second ink, and subjecting the second coating film to at least one second curing treatment selected from the group consisting of a heating treatment to form a second conductive film,
• wherein a thickness of the second coating film formed in the step 2 is smaller than a thickness of the first coating film formed in the step 1, and Expression (1) is satisfied,
• 1.2
• ≤
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• Expression
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• in the expressions, L1 and L2 each represent a thickness (μm) of the first coating film or the second coating film,
• T1 and T2 each represent a heating temperature (° C.) of the heating treatment to be performed as the first curing treatment or the second curing treatment,
• t1 and t2 each represent a heating time (min) of the heating treatment to be performed as the first curing treatment performed as the first curing treatment or the second curing treatment.