Labeling unit for a labeling machine, labeling machine and improved label

摘要

Labeling unit (1, 1 '') for a labelling machine (3) for articles, in particular containers, bottles or the like, and the labeling unit (1, 1'') is characterized in that it contains:– a feed device (8), along a predetermined path (p), a web (6), which has a number of labels (2, 2 '') each of which at least one layer (11, 11'') of coloring pigments (12, 12 ''), which are arranged in a deactivated state, in which the pigments (12, 12'') are transparent;– Said interaction means (7) with the web (6), the labels (2) and of the labeling machine (3); and– Activating means (13) of the pigments (12, 12 '') which, in front of the interacting means (7) along the path (p) of the web (6) are arranged and can be selectively operated, an activation temperature, in order to predetermined areas of the web (6), in order to apply at least a portion of the pigments (12, 12'') permanently in an activation state, in which it predetermined dyeings have.