Printing a duplex microwave interactive susceptor structure on cellulose-based substrates for sustainable microwave packaging
AssigneeFPInnovations
InventorsTingjie Li, Joseph Stephen Aspler, Lyne M. Cormier
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Abstract
The present invention relates to a microwave interactive susceptor structure for the microwave heating of food products. In one aspect, the invention relates to a duplex design for the microwave interactive structure on cellulose-based substrates. In another aspect, the invention relates to a method of patterning the duplex microwave interactive structure on the substrates using a printing press with or without an alignment function.
Claims8
A microwave interactive susceptor duplex structure comprising:
- a cellulose-based substrate layer including,
- a first surface and a second surface opposite each other,
- a first functional susceptor pattern on the first surface comprising:
- first microwave interactive areas interspersed by first non-microwave interactive areas, and
- a second functional susceptor pattern on the second surface comprising:
- second microwave interactive areas interspersed by second non-microwave interactive areas.
A multilayer microwave susceptor composite for enclosing a foodstuff to be heated, the composite comprising:
- a cellulose-based substrate layer including,
- a first surface and a second surface opposite each other;
- a first functional susceptor pattern on the first surface comprising:
- first microwave interactive areas interspersed by first non-microwave interactive areas, and
- a second functional susceptor pattern on the second surface comprising:
- second microwave interactive areas interspersed by second non-microwave interactive areas,
- a top ply layer, wherein the top ply layer is in contact with the food on the first surface, and
- a bottom layer on the second surface.
Dependencies are inferred from the claim text.