Electroluminescent flexible film for product packaging
First Claim
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1. A flexible film sheet comprising:
- a first polymer film layer;
a first electrode film layer bound to said first polymer film layer;
an electroluminescent material layer bound to said first electrode film layer;
a second electrode film layer bound to said electroluminescent material layer;
a second polymer film layer bound to said second electrode layer;
a power source electrically connected to said electroluminescent material; and
wherein said flexible film sheet is suitable for use in a vertical form, fill, and seal packaging machine.
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Abstract
A flexible electroluminescent film, and packaging material and packages made therefrom, that incorporates electroluminescent material within the polymer packaging film layers to enable the film to be illuminated without an external light source. The film may also comprise various thin-film items, such as power source, inverter, switch, integrated circuit, radio receiver, and speaker, all within the film layers. The film can be used in existing form and fill packaging machines without substantial modifications to the machines.
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Citations
14 Claims
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1. A flexible film sheet comprising:
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a first polymer film layer;
a first electrode film layer bound to said first polymer film layer;
an electroluminescent material layer bound to said first electrode film layer;
a second electrode film layer bound to said electroluminescent material layer;
a second polymer film layer bound to said second electrode layer;
a power source electrically connected to said electroluminescent material; and
wherein said flexible film sheet is suitable for use in a vertical form, fill, and seal packaging machine. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. A flexible film adaptable for use on a vertical form, fill, and seal machine comprising an electroluminescent material, a DC power source, and an inverter, all electrically connected and embedded within the flexible film, such that the flexible film can be formed into a plurality of flexible packages, with each flexible package providing an electroluminescent image on the exterior of the package.
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10. A flexible package for containing a product, said package comprising:
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a first polymer layer;
a second polymer layer;
an electroluminescent thin film;
a power source electrically connected to said electroluminescent thin film; and
whereas the electroluminescent film is sandwiched between the two polymer layers, said polymer layers being otherwise bound together. - View Dependent Claims (11, 12, 13)
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14. A method for producing a flexible package, said package comprising two polymer film layers, said method comprising the steps of:
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a) placing between the two polymer film layers an electroluminescent film and a thin film power supply, wherein said electroluminescent film and power supply are electrically connected;
b) sealing the two polymer film layers together, thereby encasing the electroluminescent film and power supply within the two layers and forming a sheet of thin-film, flexible material;
c) feeding said sheet of thin-film, flexible material into a form, fill, and seal machine; and
d) forming a package from said sheet of thin-film, flexible material.
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Specification