An adhesive system for applying wrap-around labels

Details An adhesive system for applying wrap-around labels An adhesive system for applying wrap-around labels

C - Chemistry, Metallurgy

09

J

C09J 9/00 (2006.01) B65C 3/16 (2006.01) B65C 9/20 (2006.01) C09J 5/06 (2006.01) C09J 123/02 (2006.01)

Patent

CA 2225421

The invention concerns an adhesive system for sticking all-round labels, said system comprising a priming adhesive which is active whilst the label is applied and a covering adhesive for permanently sticking the label overlap. At its application temperature, the priming adhesive has significantly higher adhesiveness, measured as tensile strength, than at its conventional storage temperature. In addition, this adhesive has greater affinity to the label than to the hollow body bearing this label. Consequently, the label can easily be removed from the hollow body without leaving residues of adhesive. If, nevertheless, a residue of adhesive should remain on the hollow body, it can advantageously be dissolved by an alkaline solution.

L'invention concerne un système adhésif pour coller des étiquettes autour d'un support, comportant une colle d'accrochage, active pendant l'application de l'étiquette, et une colle de recouvrement, pour coller l'étiquette de façon permanente. A sa température d'application, la colle d'accrochage possède une adhésivité, mesurée en tant que résistance à la traction, qui est considérablement supérieure à son adhésivité à sa température usuelle de stockage. En outre, cette colle a une affinité supérieure sur l'étiquette que sur le corps creux destiné à recevoir l'étiquette. Il en résulte que l'étiquette se détache facilement du corps creux sans laisser de traces de résidus de colle. Si malgré cela, des résidus de colle restent sur le corps, il est possible de les dissoudre avantageusement avec une lessive alcaline.

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