METHOD FOR METALLISING OBJECTS WHICH HAVE AT LEAST TWO DIFFERENT PLASTICS ON THE SURFACE

摘要

The following method is proposed in order to improve selectivity during metallisation of surface areas to be metallised on objects 7 having different plastics while not allowing the areas not to be metallised to be metallised: A) etching of the objects 7 with an etching solution; B) treatment of the objects 7 with a solution of a colloid or with a metal compound, the metal being a metal of Group VIIIB or IB of the Periodic Table of the Elements; and C) electrolytic metallisation of the objects 7 with a metallisation solution. According to the present invention the objects 7 are subjected to ultrasonic treatment during the treatment in a further method step following method step B) and before method step C) in order to avoid metallisation of at least one first plastic exposed on the surface of the objects 7 while at least one second plastic exposed on the surface of the objects 7 is metallised.