PROCESS FOR METALLIZING NONCONDUCTIVE PLASTIC SURFACES

摘要

The present invention relates to a process for metallizing nonconductive plastics using etching solutions free of hexavalent chromium. The etching solutions are based on permanganate solutions. After the treatment of the plastics with the etching solutions, the plastics are metallized by means of known processes.

主权项

1. Process for metallizing electrically nonconductive plastic surfaces of articles, comprising the process steps of:
A) treating the plastic surface with etching solutions; B) treating the plastic surface with a solution of a colloid or of a compound of a metal; and C) metallizing the plastic surface with a metallizing solution;wherein the etching solutions comprise at least one acidic etching solution and at least one alkaline etching solution, and that each of the etching solutions comprise a source for permanganate ions.