US 10,479,577 B2 · Printed multilayer polymeric films and methods of manufacture and use thereof

Abstract

Printed multilayer polymeric films are provided that include a flexible polymeric film layer, one or more non-photochromic layers each including a solvent-based ink composition having one or more non-photochromic inks that are at least partially transparent to ultraviolet radiation, and one or more photochromic layers each including a water-based ink composition having one or more photochromic inks that undergo a color change upon exposure to ultraviolet radiation. Also provided are methods for making the printed multilayer polymeric films. Packages for containing a product therein that include the printed multilayer polymeric films are also provided. Methods for making the packages and methods for packaging a product that employ the printed multilayer polymeric films are also provided. Rolls of film for forming the packages that include the printed multilayer polymeric films are also provided.

Claims25

Dependent claims

A printed multilayer polymeric film, comprising:

a flexible polymeric film layer, wherein the flexible polymeric film layer is the outermost layer of the printed multilayer polymeric film;
one or more non-photochromic layers each comprising a non-aqueous, solvent-based ink composition having one or more non-photochromic inks that are at least partially transparent to ultraviolet radiation;
one or more photochromic layers each comprising a water-based ink composition having one or more photochromic inks that undergo a color change upon exposure to ultraviolet radiation;
a resin layer;
and
a base substrate,
wherein the resin layer is located between the base substrate and at least one of the one or more photochromic layers and the one or more photochromic layers are between the flexible polymeric film layer and the base substrate, and
wherein at least a portion of the one or more non-photochromic layers are located between the flexible polymeric film layer and at least a portion of the one or more photochromic layers.

5 more elements

A method for fabricating a printed multilayer polymeric film, comprising:

applying one or more non-photochromic layers on a flexible polymeric film layer, the one or more non-photochromic layers each comprising a non-aqueous, solvent-based ink composition having one or more non-photochromic inks that are at least partially transparent to ultraviolet radiation;
overlaying one or more photochromic layers on at least a portion of the one or more non-photochromic layers, the one or more photochromic layers each comprising a water-based ink composition having one or more photochromic inks that undergo a color change upon exposure to ultraviolet radiation;
extruding a resin layer between a base substrate and at least one of the one or more photochromic layers,
wherein the one or more photochromic layers are between the flexible polymeric film layer and the base substrate, and
wherein at least a portion of the one or more non-photochromic layers are located between the flexible polymeric film and at least a portion of the one or more photochromic layers, and the flexible polymeric film layer is the outermost layer of the printed multilayer polymeric film.

2 more elements

Dependencies are inferred from the claim text.

Printed multilayer polymeric films and methods of manufacture and use thereof

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Printed multilayer polymeric films and methods of manufacture and use thereof

Life of this patent

Abstract

Claims25