B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 5/56 (2006.01) B31B 1/62 (2006.01) B31B 1/88 (2006.01) B65D 5/28 (2006.01)
Patent
CA 2137322
Folded paperboard food cartons having a barrier polymer coating only on the interior surface and sales graphics on a substantially unplasticized clay coated exterior surface are heat sealed at contiguous areas of overlapping flaps wherein the polymer coated interior surface is in direct contact with a small portion of the clay coated exterior surface or where it is desired to secure together two portions of the clay coated exterior surface. In such heat sealing areas, small and accurately located exterior clay coated carton surface areas are printed with a patterned solvent based polymer material that is precisely applied to such areas by a printing press.
Contenants à nourriture en carton repliés comprenant un revêtement spécial de polymère uniquement sur la surface intérieure et des graphiques publicitaires sur une surface extérieure couchée au kaolin essentiellement non plastifiée. Ces contenants sont thermocollés sur des zones contiguës de rabats superposés, soit à l'endroit où la surface intérieure de polymère entre en contact direct avec une petite partie de la surface extérieure ou lorsqu'on veut fixer ensemble deux parties de la surface extérieure. Dans ces zones de thermocollage, de petites surfaces choisies avec précision sur l'extérieur du contenant sont imprimées avec un matériau polymérique à base de solvant à motifs qui est appliqué minutieusement sur ces surfaces par une presse d'imprimerie.
Calvert Barry Gene
Donnellan Walter Hamilton III
Smart & Biggar
Westvaco Corporation
LandOfFree
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