Heat sealed paperboard carton having a patterned solvent-based p

Details Heat sealed paperboard carton having a patterned solvent-based p Heat sealed paperboard carton having a patterned solvent-based p

1993-12-06

1995-05-16

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

229186, 428 342, B65D 540, B65D 562

Patent

active

054153409

ABSTRACT:
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.

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The Wiley Encyclopedia of Packaging Technology, John Wiley & Sons, pp. 14-16 (1986).

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