METHOD FOR PRODUCING AN OPTICALLY MACHIINE-READABLE IDENTIFIER ON A PACKAGING FILM

A method for producing an optically machine-readable identifier on a packaging film. The packaging film includes at least one first layer comprising photosensitive substances and at least one second layer arranged at least indirectly on the first layer, wherein, in order to produce the optically mac...

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Bibliographische Detailangaben
Hauptverfasser:	ZOISTER, Stefan, BIEL, Stefan, KEPLINGER, Jürgen
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CALCULATING COLOUR PRINTING COMPUTING CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING COUNTING HANDLING RECORD CARRIERS HANDLING THIN OR FILAMENTARY MATERIAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LINING MACHINES PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES RECOGNITION OF DATA RECORD CARRIERS STAMPS STORING TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method for producing an optically machine-readable identifier on a packaging film. The packaging film includes at least one first layer comprising photosensitive substances and at least one second layer arranged at least indirectly on the first layer, wherein, in order to produce the optically machine-readable identifier, a bundled light beam is directed in a specifiable manner onto the first layer, wherein the bundled light beam is at least partially absorbed by the first layer, wherein the bundled light beam brings about a color change in the first layer to produce the optically machine-readable identifier and is locally converted at least partially into thermal energy, wherein the thermal energy results in a local heat transfer to the second layer and causes a thermal reaction in the second layer, whereby an at least optically detectable image of the optically machine-readable identifier is additionally formed in the second layer.