Method for Labelling a Substrate

Abstract

The invention relates to a method for labelling a substrate, in which method at least one luminescent dye is deposited as a first identification feature in at least one transparent marker layer or in at least one functional layer on a surface of the substrate or on a layer which is situated on the surface, wherein the transparent marker layer or the functional layer is provided with a structure in a further step for producing a second identification feature by local destruction, in particular thermally. According to the invention, the deposition of the at least one marker layer or functional layer takes place by means of chemical gas-phase deposition using a flame or a plasma, by means of a sol-gel method or electrochemically.

1 . A method for labeling a substrate in which at least one luminescent dye is deposited as a first identification feature in at least one transparent marker layer or in at least one functional layer on a surface of the substrate or on a layer which is situated on the surface,
 wherein the transparent marker layer or the functional layer is provided with a structure in a further step for generating a second identification feature by local destruction, in particular thermally,   characterized in that the deposition of the at least one marker layer or functional layer takes place by means of chemical gas-phase deposition using a flame or a plasma, by means of a sol-gel method or electrochemically.   
     
     
         2 . The method as claimed in  claim 1 , characterized in that the deposition of at least one further marker layer or functional layer takes place by chemical gas-phase deposition using a flame or a plasma, by means of sol-gel method, or electrochemically. 
     
     
         3 .- 9 . (canceled) 
     
     
         10 . The method as claimed in  claim 1 , characterized in that the deposition takes place by means of chemical gas-phase deposition using a flame or a plasma under atmospheric pressure. 
     
     
         11 . The method as claimed in  claim 2 , characterized in that the deposition takes place by means of chemical gas-phase deposition using a flame or a plasma under atmospheric pressure. 
     
     
         12 . The method as claimed in  claim 1 , characterized in that the local destruction takes place by means of a laser, a flame or a plasma, wherein, via the heat input, the temperature in a locally restricted region is elevated over the decomposition temperature of the luminescent dye and the luminescence property is destroyed in a locally restricted manner. 
     
     
         13 . The method as claimed in  claim 2 , characterized in that the local destruction takes place by means of a laser, a flame or a plasma, wherein, via the heat input, the temperature in a locally restricted region is elevated over the decomposition temperature of the luminescent dye and the luminescence property is destroyed in a locally restricted manner. 
     
     
         14 . The method as claimed in  claim 10 , characterized in that the local destruction takes place by means of a laser, a flame or a plasma, wherein, via the heat input, the temperature in a locally restricted region is elevated over the decomposition temperature of the luminescent dye and the luminescence property is destroyed in a locally restricted manner. 
     
     
         15 . The method as claimed in  claim 11 , characterized in that the local destruction takes place by means of a laser, a flame or a plasma, wherein, via the heat input, the temperature in a locally restricted region is elevated over the decomposition temperature of the luminescent dye and the luminescence property is destroyed in a locally restricted manner. 
     
     
         16 . The method as claimed in  claim 12 , characterized in that the local destruction takes place by means of a plasma microstamp. 
     
     
         17 . The method as claimed in  claim 13 , characterized in that the local destruction takes place by means of a plasma microstamp. 
     
     
         18 . The method as claimed in  claim 14 , characterized in that the local destruction takes place by means of a plasma microstamp. 
     
     
         19 . The method as claimed in  claim 15 , characterized in that the local destruction takes place by means of a plasma microstamp. 
     
     
         20 . The method as claimed in  claim 1 , characterized in that the luminescent dye used is a fluorescent dye. 
     
     
         21 . The method as claimed in  claim 2 , characterized in that the luminescent dye used is a fluorescent dye. 
     
     
         22 . The method as claimed in  claim 1 , characterized in that a transparent or translucent substrate, in particular a container, is labeled. 
     
     
         23 . The method as claimed in  claim 2 , characterized in that a transparent or translucent substrate, in particular a container, is labeled. 
     
     
         24 . The method as claimed in  claim 20 , characterized in that the deposition of the marker layer or of the functional layer takes place at the end of a process for producing the container and the local destruction takes place in a process for filling the container. 
     
     
         25 . The method as claimed in  claim 21 , characterized in that the deposition of the marker layer or of the functional layer takes place at the end of a process for producing the container and the local destruction takes place in a process for filling the container. 
     
     
         26 . The method as claimed in  claim 22 , characterized in that the first identification feature is used by selection of the luminescent dye for coding a production batch or a production date of the container, and a product batch or a filling date of a product charged into the container is encoded by means of the second identification feature. 
     
     
         27 . The method as claimed in  claim 23 , characterized in that the first identification feature is used by selection of the luminescent dye for coding a production batch or a production date of the container, and a product batch or a filling date of a product charged into the container is encoded by means of the second identification feature.