Apparatus and method for sealing of paperboard containers using

Details Apparatus and method for sealing of paperboard containers using Apparatus and method for sealing of paperboard containers using

1998-08-21

2000-04-18

Johnson, Linda

Package making

Closing packages and filled receptacles

Separate closure applying

533293, 533294, B65B 5118

Patent

active

060500557

ABSTRACT:
Using induction heaters, two rotating metal bands are heated to a target temperature, continuously sensed by infrared temperature probes and then compressed on either side of a mated pair of paperboard carton flanges in an extended nip. The mated paperboard flange area is then heated by conduction from the metal bands to the activation temperature of the coating material to form a uniform bond between the paperboard surfaces.

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