| 摘要 |
A pack for containing and closely wrapping a stack of planar food items 113 (eg biscuits) comprises a sheet of planar material. The pack is a parallelepiped, having a longitudinal seam 108 extending along the top face of the pack parallel to the top face of the stack between two end seams 106/107. The ends of the pack extend parallel to the end faces of the items in the stack. At least a portion the longitudinal seam comprises an adhesion zone which is tearably openable by pulling on a part of the top of the pack 112 adjacent to and overlapping the longitudinal seam. The opening provides access to the interior of the pack in a direction transverse to the axis of the stack. The longitudinal seam may be disposed laterally to one side of the top surface and may be provided with two incisions 110/111 therein which between them define a gripping zone 112. The sheet of planar material may be a polymeric film material which may be a laminate of at least three layers, and which may be a laminate of three layers, one layer being a heat-sealable material. The longitudinal seam may be peelable. The end seams may be folded against, and affixed to, the end faces of the pack. The stack is packed by continuously withdrawing a sheet of material from a roll, forming it into a tube in which a stack of food items is placed and then sealing the tube at both ends and longitudinally.
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