| 摘要 |
A dual-ovenable container is formed from a blank of laminate material that includes a paperboard layer sandwiched between outer heat-sealable layers of amorphous polyester or heat-sealable cellophane. The blank is wrapped into a tubular or conical configuration and opposite edges of the blank form a lap joint at which the edges are heat-sealed together to form a container body. End closures can then be applied to the ends of the container body. The laminate is heat-sealable to itself, is able to withstand heating/cooking conditions in both conventional and microwave ovens, and has a low oxygen permeability. The edge of the blank exposed to contents of the container can be wrapped by a sideseam tape in order to protect the edge.
|
