Packaging material with a coloured element which at a...

B - Operations – Transporting – 41 – M

Patent

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Details

B41M 3/00 (2006.01) B41M 5/28 (2006.01) B44F 1/10 (2006.01) B65D 79/02 (2006.01) G09F 3/02 (2006.01)

Patent

CA 2741608

It is disclosed a packaging material (1) for a pharmaceutical product. The packaging material comprises a coloured element (2) which at a predetermined temperature, below which the pharmaceutical product must be kept, discolours partially, revealing a marking. The element is formed by a first portion forming the marking (2') printed with conventional ink, and a second portion (2") printed with thermochromic ink. The thermochromic ink is coloured below the predetermined temperature and becomes colourless when this predetermined temperature is reached or exceeded. The two portions are arranged so that the first portion is invisible below the predetermined temperature, but becomes visible when this temperature is reached or exceeded.

L'invention concerne un matériau d'emballage (1) pour un produit pharmaceutique. Le matériau d'emballage comporte un élément coloré (2) qui se décolore partiellement à une température prédéterminée, en dessous de laquelle le produit pharmaceutique doit être maintenu, révélant un marquage. L'élément est constitué par une première partie qui forme le marquage (2') imprimé à l'aide d'une encre conventionnelle, et par une deuxième partie (2'') qui est imprimée à l'aide d'une encre thermochromatique. L'encre thermochromatique est colorée en dessous de la température prédéterminée et devient incolore lorsque cette température prédéterminée est atteinte ou dépassée. Les deux parties sont agencées de telle sorte que la première partie soit invisible en dessous de la température prédéterminée, mais devienne visible lorsque cette température est atteinte ou dépassée.

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