A label having a temperature-monitoring function, a package for goods provided with a label, as well as a method and equipment for the application of labels to packages for goods

摘要

In one aspect, the invention relates to a label (1) preferably intended for packagesfor goods, which label comprises, on one hand, a colouring substance of the typethat has the capacity of producing a print by the effect of heat, the colour of whichprint contrasts with the base colour of the label, and on the other hand an agenthaving the purpose of, at least partially, destroying the contrast between saidcolours, if the label is exposed to a tem- perature above a predetermined maximumvalue, the label having a surface field for a print in the form of a bar-code (3).According to the invention, the label is manufactured from a porous, capil- lary-suctioningmaterial, in addition to which said agent is included in a loading of a substance(7) of the type that is solid at temperatures up to said maximum value, but becomesliquid above the same, the substance loading being located beside the surfacefield of the bar-code (3). In other aspects, the invention also relates to a packagefor goods provided with a label, as well as to a method and equipment for the applicationof labels to packages for goods.