Method For Manufacturing Plated Resin Molded Article

Abstract

The present invention provides a method for manufacturing plated resin molded article having strong adhesion of plating and giving beautiful appearance. Specifically, it provides a method for manufacturing plated resin molded article having the steps of: contact-treating a thermoplastic resin molded article using an acid or base free from heavy metal; treating the contact-treated thermoplastic resin molded article by a catalyst imparting liquid; forming an electrically conductive layer on the surface of the thermoplastic resin molded article using a direct plating method; and applying electroplating to the electrically conductive layer; without applying the step of etching by an acid which contains heavy metal.

1 . A method for manufacturing a plated resin molded article, comprising the steps of: contact-treating a thermoplastic resin molded article with an acid or base being free from heavy metal; treating the contact-treated thermoplastic resin molded article with a catalyst-imparting liquid; forming an electrically conductive layer on the surface of the thermoplastic resin molded article by direct plating method; and applying electroplating to the electrically conductive layer; without any etching step by an acid, which contains heavy metal. 
     
     
         2 . The method for manufacturing plated resin molded article according to  claim 1 , wherein the direct plating method comprises the step of forming an electrically conductive layer on the surface of a thermoplastic resin molded article with a selector liquid which contains a metal compound, a reducing compound and a metal hydroxide. 
     
     
         3 . The method for manufacturing plated resin molded article according to  claim 1 , wherein the thermoplastic resin molded article comprises a polyamide. 
     
     
         4 . The method for manufacturing plated resin molded article according to  claim 1 , wherein the thermoplastic resin molded article further comprises a substance which has a solubility (23° C.) in water of 300 g/100 g or less. 
     
     
         5 . The method for manufacturing plated resin molded article according to  claim 1 , wherein the thermoplastic resin molded article comprises a polyamide, and further a substance which has a solubility (23° C.) in water of 300 g/100 g or less.