Patent ID: 9578751
Date: 2017-02-21
CPC Classifications: B05D,B41M,C23C,H05K

Claim:
1. A method for producing a resin substrate having a metal film pattern formed thereon comprising the following steps in the order of (a) to (e): (a) pattern-printing a latent image agent onto a surface of a resin substrate, wherein the latent image agent is an alkali solution comprising at least one metal hydroxide selected from the group consisting of potassium hydroxide and sodium hydroxide, (b) contacting the surface of the resin substrate imprinted with the latent image agent with a solution comprising metal ions to form a metal salt on the surface of the resin substrate, (c) contacting the metal salt with an acidic treatment liquid comprising a reducing agent to reduce the metal salt on the surface of the resin film imprinted with the latent image agent, (d) forming an electroless nickel plating film on the surface of the resin substrate imprinted with the latent image agent, and (e) depositing an electroless copper plating onto a surface of the nickel plating film.