Package and method of forming the same

Food or edible material: processes – compositions – and products – Packaged or wrapped product – Having nonedible spacer to segregate all units of multiunit...

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Details

206471, 206526, 426115, 426396, B65D 8308, B65D 8576

Patent

active

040693481

ABSTRACT:
A sealed package is provided wherein a plurality of quantities of product in a stack, such as cheese slices, are hermetically sealed in individual compartments by interleaf sheets which are releasably sealed to a backing board. Interleaf sheets are positioned between the respective quantities of product in the stack and releasably sealed along the marginal edge portions of the interleaf sheets to a peripheral portion of the backing board, outwardly of the edges of the quantities of product which are thereby encapsulated. The interleaf sheets can be hermetically sealed directly, respectively to the backing board in a progressive, concentric manner, or to each other with the innermost sheet sealed to the backing board, to form progressive but coincident seals. The backing board can be flat, or cup-shaped with a flange to which the interleaf sheets are sealed. Correspondingly, the interleaf sheet may be appropriately preformed to provide flat faces and edges for sealing to each other and/or to the backing board, or they may be pieces of appropriately sealable sheet material of proper sizes. When a flat backing board is used, the product can be disposed on both sides of the backing board.
The package can be formed by various combinations of the steps of positioning a backing board which is adapted to receive a stack of quantities of product, placing a quantity of product on the backing board, positioning an interleaf sheet in face-to-face juxtaposition to the quantity of product such that the interleaf sheet extends beyond the edges of the quantity of product, and releasably sealing the interleaf sheet to the backing board outwardly of the edges of the quantity of product.

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