| abstract |
In one aspect, a label ( 1 ) preferably intended for packages for goods, is provided which has, on one hand, a coloring substance of capacity of producing a print by effect of heat, the color of which print contrasts with the base color of the label, and on the other hand, an agent having the purpose of, at least partially, destroying the contrast between the colors, if the label is exposed to a temperature above a predetermined maximum value, the label having a surface field for a print in the form of a bar-code ( 3 ). The label is manufactured from a porous, capillary-suctioning material, in addition to which the agent is included in a loading of a substance ( 7 ) that is solid at temperatures up to the maximum value, but becomes liquid above the maximum value, the substance loading being located beside the surface field of the bar-code ( 3 ). A package for goods provided with a label, as well as a method and equipment for the application of labels to packages for goods, are also provided. |