Heat-insulating packaging box

Details Heat-insulating packaging box Heat-insulating packaging box

B - Operations, Transporting

65

D

217/12

B65D 1/00 (2006.01) B65D 5/56 (2006.01) B65D 65/40 (2006.01)

Patent

CA 1320931

ABSTRACT OF THE DISCLOSURE A packaging box is used for packaging frozen food with an improved heat-insulating property. The movement of air surrounded by a corrugated core of a conventional corrugated card-board is interrupted, thereby enhancing the heat- insulating property. The air is prevented from permeating through the corrugated property. Further in order to improve the heat-insulating property, laminated aluminum foil is used.

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