Electroless method for in-line metallization of substrates by spraying them, with prior surface treatment and device for implementing the method
AssigneeJet Metal Technologies
InventorSamuel Stremsdoerfer
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Abstract
A method of metallizing the surface of a substrate electrolessly, by spraying one or more oxidation-reduction solutions thereonto. The steps of this method include: a) physical or chemical treatment to reduce the surface tension of the substrate before metallization; b) electroless metallization of the surface of the substrate treated in step a), by spraying one or more oxidation-reduction solutions in the form of one or more aerosols thereonto; and c) formation of a top coat on the metallized surface. Compact devices for implementing this method and the products obtained are also disclosed.
Claims8
Method of continuous surface metallization of a substrate wherein the following stages are implemented:
- a. physical treatment before metallization so that the surface energy of the substrate is at least 65 dynes to control a metallization reaction, said physical treatment having a duration of from 4 to 50 seconds,
- b. non electrolytic metallization of the surface of the substrate processed in stage ‘a’, by projection of one or more oxide-reducing solutions as aerosol(s), said metallization being performed less than 30 minutes after said physical treatment, to produce a metallized surface,
- c. execution of a finish layer on the metallized surface, said finish layer being a varnish or an electrolytic thickening of the metallized surface.
Dependencies are inferred from the claim text.