Shrink film labeling with polyurethane hot melts

Details Shrink film labeling with polyurethane hot melts Shrink film labeling with polyurethane hot melts

B - Operations, Transporting

65

D

B65D 65/22 (2006.01) B05D 3/00 (2006.01) B05D 5/10 (2006.01) B65B 53/02 (2006.01) B65C 3/08 (2006.01) C08G 18/10 (2006.01) C09J 5/06 (2006.01) C09J 7/02 (2006.01) C09J 175/04 (2006.01)

Patent

CA 2092725

A process for applying heat shrink film to containers comprising the steps of a) coating at least a portion of a heat shrinkable but unshrunken film segment with a reactive hot melt polyurethane adhesive having a free isocyante content greater than 2% and a viscosity less than 3000 cps at 225°F; b) applying the film to the longitudinal surface of the container; and, c) subjecting the container to heat to shrink the film onto the container so as to permanently affix it thereto.

Cette invention concerne un procédé de banderolage de récipients sous pellicule thermorétrécissable comprenant les étapes suivantes : a) application sur au moins une partie de la pellicule thermorétrécissable d'un adhésif thermofusible réactif à base de polyuréthanne ayant une teneur en isocyanate libre de plus de 2 % et une viscosité inférieure à 3000 cP à 225 degrés Fahrenheit; b) application de la pellicule à la surface longitudinale du récipient; et c) chauffage du récipient pour fixer en permanence la pellicule au récipient par rétrécissement de celle-ci.

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