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, and the power source further comprises a thin-film DC power source.
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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
20 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, and the power source further comprises a thin-film DC power source. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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 sandwiched between said first polymer layer and said second polymer layer;
a power source electrically connected to said electroluminescent thin film;
wherein said first polymer layer, second polymer layer, and electroluminescent film are bound together and arranged to form said flexible package. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. 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. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification