A label having a temperature-monitoring function, a package...

B - Operations – Transporting – 41 – M

Patent

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Details

B41M 5/40 (2006.01) G06K 19/06 (2006.01)

Patent

CA 2610335

In one aspect, the invention relates to a label (1) preferably intended for packages for goods, which label comprises, on one hand, a colouring substance of the type that has the capacity of producing a print by the effect of heat, the colour of which print contrasts with the base colour of the label, and on the other hand an agent having the purpose of, at least partially, destroying the contrast between said colours, if the label is exposed to a tem- perature above a predetermined maximum value, 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-suctioning material, 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 becomes liquid above the same, the substance loading being located beside the surface field of the bar-code (3). In other aspects, the invention also relates to a package for goods provided with a label, as well as to a method and equipment for the application of labels to packages for goods.

Un aspect de l~invention concerne une étiquette (1) destinée de préférence aux emballages pour produits, ladite étiquette comprenant, d~un côté, une substance colorante d~un type capable de produire une impression sous l~effet de la chaleur, la couleur de cette impression contrastant avec la couleur de fond de l~étiquette, et d~un autre côté un agent destiné à, au moins en partie, faire disparaître le contraste entre lesdites couleurs, si l~étiquette est exposée à une température supérieure à une valeur maximum pré-déterminée, l~étiquette ayant un espace de surface pour une impression de la forme d~un code à barres (3). Selon l~invention, l~étiquette est fabriquée avec une matière poreuse, à aspiration capillaire, à laquelle on ajoute ledit agent dans une charge d~une substance (7) d~un type qui est solide aux températures inférieures à celle de ladite valeur maximum, mais qui devient liquide au-dessus de celle-ci, la charge de substance étant située à côté de l~espace de surface du code à barres (3). Selon d~autres aspects, l~invention concerne aussi un emballage pour produits comportant avec une étiquette, ainsi qu~une méthode et un équipement pour appliquer les étiquettes aux emballages de produits.

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