LASER POST TREATMENT OF METAL EFFECT PIGMENT SURFACES FOR LOCALLY INCREASING RADAR AND/OR LIGHT TRANSMISSION

Post-treatment method and/or fine patterning method of effect pigment-containing or metal-containing particle-containing objects, for example car body parts or cosmetic containers or layers, for example paint layers or printing ink layers, by means of energy input (e.g. heat input, preferably by las...

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Bibliographische Detailangaben
1. Verfasser:	MAILE, Frank Jochen
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES ANALOGOUS ARRANGEMENTS USING OTHER WAVES ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DYES ELECTRICITY FILLING PASTES INKS LINING MACHINES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHYSICS POLISHES PREPARATION OF CARBON BLACK PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES RADIO DIRECTION-FINDING RADIO NAVIGATION STAMPS TESTING TRANSPORTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Post-treatment method and/or fine patterning method of effect pigment-containing or metal-containing particle-containing objects, for example car body parts or cosmetic containers or layers, for example paint layers or printing ink layers, by means of energy input (e.g. heat input, preferably by laser light), whereby the hiding power of metal-containing pigment platelets or metal-containing particles is permanently reduced by their change in shape factor. In the treated surfaces, this change in shape factor causes a permanent local increase in transparency, translucency or transmission for electromagnetic waves, in particular radar wave, radio wave and/or light wave transmission, and/or a local reduction in reflectance, for example for the production of painted radomes. The process differs from conventional laser marking in that the transmission for electromagnetic waves of normally reflective metal-effect pigment surfaces or metal-containing particles is permanently increased by the change in shape factor caused by the laser beam, whereby pigment platelets or particles are changed either by direct melting and/or by triggering an auxiliary chemical reaction in such a way that their metal core is at least partially melted, possibly chemically transformed and/or destroyed.