Machine to line containers with film

Abstract

A paper container to hold liquids or solid material of light and heavy viscosity. Said container has an inner film liner, but not limited to, which conforms to the configuration of an outer container, and is secured to the open end, the side wall, and bottom of said outer container. The shape of the outer container may be, but not limited to, round,square or rectangular. A process to automatically insert a plastic film liner into said outer container, regardless of the shape of said outer container, with the use of heat and vacuum, thus creating a container that is leak-proof and environmentally friendly, compared to other containers on the market.

Description

BACKGROUND PRIOR ART[0001] Patents for composite contasiners have been issued since 1920. These containers consist of an outer container that provides structural strength for an inner liner that is normally a flexible type material that may be easily installed inside the outer container. An example of this is disclosed in U.S. Pat. No. 4,466,553. However, the liner in the above patent does not adhere to the outer container, leaving s space between the liner and the outer container. In the packaging or canning of vegetable products, it has been customery to provide a rigid metal container that is corrugated around the cylindrical peripheral intermediate portion to provide rigidity for the container. This featurs allows it to withstand crush pressures as well as resisting collapsing during various phases of packaging and processing of the product therein.[0002] Conventionally, in the packaging of sanitary food products, the metal container must be internally lined to prevent any conta...

AI Technical Summary

Problems solved by technology

However, the liner in the above patent does not adhere to the outer container, leaving s space between the liner and the outer container.

One of the main problems with a pouch of this type, when used for packaging food products is the fact that the relatively flexible package slows the filling speeds of the filling line and therefore increases the cost thereof For example, pouches of this type reqwuire a special system that will provide a mechanical support for the pouch during the heating or processing operation for the contents.

A further problem that has been encountered with the pouch type package is the fact that the pouch does not have sufficient rigidity to be self-supporting without collapsing during shipment and display.

Thus most pouches that are utilized for packaging particularly food products are of necessity placed in an outer cardboard or other carton for shipment or display purposes, adding to the overall cost of the package.

In the above steps(1 through 4) it is self-evident that flaws exist with the procedure. such as

3. If the side wall is erroneously located on its mandrel, the side seam will not be perfectly formed and will not attach properly to the bottom.

4. Any flaw (hole) in either the side wall blank or bottom blank will cause the container to leak.

However, unless protected by Sensors, the container may still be produced with its flaws.

All the above conditions, if not properly met will cause leaking at the side seam or bottom, possibly inflicting personal injury.

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