LASER MARKING FOR EFFECT COATING

PROBLEM TO BE SOLVED: To induce a marking as a presentation only perceptible in a specific visual angle by changing color in a visual angle dependence effect coating or coating-forming compound by laser irradiation and suitably selecting the color thereby. SOLUTION: A method for forming a marking on...

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Bibliographische Detailangaben
Hauptverfasser:	SCHOENFELD AXEL DR, STOHR ANDREAS DR, METZ HANS JOACHIM DR
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMISTRY COLOUR PRINTING COMPOSITIONS BASED THEREON DECORATIVE ARTS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DYES FREQUENCY-CHANGING GENERAL PROCESSES OF COMPOUNDING LINING MACHINES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MOSAICS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPERHANGING PERFORMING OPERATIONS PHYSICS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PRODUCING DECORATIVE EFFECTS SPRAYING OR ATOMISING IN GENERAL STAMPS TARSIA WORK TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TYPEWRITERS USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To induce a marking as a presentation only perceptible in a specific visual angle by changing color in a visual angle dependence effect coating or coating-forming compound by laser irradiation and suitably selecting the color thereby. SOLUTION: A method for forming a marking on an effect coating or coating-forming compound comprising a cholesteric liquid crystal main chain polymer or side chain polymer or a combination of the main chain polymer with the side chain polymer comprises inducing a color change in the irradiated site of the effect coating or coating-forming compound by laser irradiation.