FLEXIBLE TO RIGID PACKAGING ARTICLE AND METHOD OF USE AND MANUFACTURE
In one embodiment, a flexible packaging system comprises a flexible container and an inflatable hollow scaffolding component; wherein the flexible packaging system may be made rigid or semi-rigid by pressurizing the hollow scaffolding component. In some aspects, the pressurizing is accomplished by filling the hollow scaffolding component with gas or foam.
This application claims the benefit of U.S. Provisional Patent Application No. 61/184,777, filed Jun. 5, 2009, and of U.S. Provisional Patent Application No. 61/218,030, filed Jun. 17, 2009, both of which are incorporated herein by reference in their entirety.
BACKGROUNDThe global consumer packaging industry is estimated to be worth over $400 billion and employs more than five million people worldwide. Packaging allows marketing and product differentiation and educates and informs the consumer. However, the procurement, production, transport and disposal of packaging can have negative consequences for both the environment and societies around the globe. Thus, the consumer packaging industry is looking for new ways to improve social or environmental consequences.
Moreover, there has been increased consumer demand for sustainable packaging. Even in tough economic times, consumers still demand improvements and more options in green purchasing. According to recent studies, 44 percent of consumers say that their green buying habits remain unchanged in a challenging economy, and one third of consumers are more committed to buying green than they were in the past. The use and development of sustainable packaging is one way to support innovative, functional packaging materials and systems that promote economic and environmental health.
To respond to consumer demand, many consumer goods companies have committed to the redesign of traditional packaging methods in order to make their products more sustainable. Over half of consumer goods producers (55 percent) indicate their commitment to sustainability initiatives do not change, even with economic downturns, and that packaging is their top focus area (76 percent). For example, the packaging industry is being pushed by customers, for example, Wal-Mart, for source reduction (i.e., material reduction).
Some of the factors that contribute to a sustainable design of packaging include use of minimal materials (reduced packaging, reduced layers of packaging, lower mass and volume), logistics efficiency (ability to efficiently transport and utilize the packaging), energy efficiency (total energy content and usage, use of renewable energy), recycled content, ability to recycle and reuse, use of renewable resources, use of biodegradable materials when appropriate, avoidance of toxic materials, effects on the atmosphere and climate, and any other environmentally-conscious practice. At the same time, the packaging must be cost-effective, and must meet market criteria for performance with respect to the type of product to be packaged.
SUMMARYIn one embodiment, a flexible packaging system comprises a flexible or semi-flexible container and an inflatable hollow scaffolding component; wherein the flexible packaging system may be made rigid or semi-rigid by inflation of the hollow scaffolding component.
In some aspects, the flexible container is made from a plastic component and formed into thin sheets or films. In other aspects, the flexible container comprises an embedded fiber matrix. In further aspects, the flexible container is an open top container.
In some aspects, the hollow scaffolding component may be internally-associated with the flexible container. In other aspects, the hollow scaffolding component may be externally-associated with the flexible container. In some embodiments, the hollow scaffolding component is inflated by a machine that pressurizes the hollow scaffolding component with air, gas or foam. In other embodiments, the hollow scaffolding component is self-inflating, wherein the hollow scaffolding component is associated with two or more compartments that contain two or more inflation components, that, when mixed, form the necessary gas, foam, or liquid to pressurize the hollow scaffolding component. Alternatively, in some aspects, the hollow scaffolding component contains pellets, capsules or beads that contain two or more ingredients that, when mixed, form the necessary gas or foam to pressurize the hollow scaffolding component. In some aspects, the hollow scaffolding component may include a handle-like appendage.
In some embodiments, a flexible packaging system may further comprise one or more internal or external ribbing supports. The ribbing supports may be string, webbing, membranes, or one or more inflatable supports that are associated with the hollow scaffolding component.
In some embodiments, the flexible container, hollow scaffolding component, or the flexible packaging system may be compressed such that the system may be stored and transported flat or in a roll.
In some embodiments, the flexible packaging system has an opening that allows for filling or pouring contents to be held within. The opening may be associated with an integrated closure assembly, wherein the integrated closure assembly may be selected from a resealable peel top, a screw top, a snap top, a flip top, or a cork or plug-type system. Another embodiment is directed to a packaging system comprising a semi-flexible container and an associated scaffold component, wherein the container includes fiber materials to provide additional stiffness and tension to help define a desired shape, and the associated scaffold component provides support for the fiber container.
In another embodiment, an unfilled flexible packaging system described above is shipped, stored and utilized according to a method comprising: providing one or more uninflated flexible packaging systems; shipping and/or storing the one or more uninflated flexible packaging systems; inflating the one or more flexible packaging systems prior to use; and optionally deflating the one or more flexible packaging systems after use.
In some aspects, the uninflated flexible packaging systems are substantially flat and shipped and/or stored in a stack, or are separably attached to each other and formed into a roll of stock for shipping and/or storing.
In some aspects, the inflating may be accomplished by a machine, and in other aspects, the uninflated flexible packaging system is self-inflating. In one aspect, the hollow scaffolding component of the self-inflating flexible packaging system is associated with two or more compartments that contain two or more inflation components, that, when mixed, form the necessary gas or foam to pressurize the hollow scaffolding component. In another aspect, the hollow scaffolding component of the self-inflating flexible packaging system contains pellets, capsules or beads that contain two or more ingredients that, when mixed, form the necessary gas or foam to inflate the hollow scaffolding component.
In order to fully understand the manner in which the above-recited details and other advantages and objects according to the invention are obtained, a more detailed description of the invention will be rendered by reference to specific embodiments thereof. Other features and advantages of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and the specific examples, while indicating the preferred embodiments of the present invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the present invention will become apparent to those skilled in the art from this detailed description.
In one embodiment, a flexible packaging system is provided. Such a packaging system may be used as a source-reducing packaging alternative. The flexible packaging system comprises a flexible container and an associated inflatable scaffold or scaffolding (such as a structural support or grid) component. The scaffolding component may be hollow or not, and when inflated or pressurized, provides the rigidity necessary to turn the flexible packaging system into a rigid or semi-rigid packaging container. Pressurization of the scaffolding may be accomplished, for example, by inflating with gas, filling with foam or any other suitable means to pressurize without adding excess weight to the packaging system.
In some embodiments, the hollow scaffold component may be independent from the flexible container. In some aspects, the scaffold component is internally-associated and the flexible container may act as a cover to the hollow scaffold component. The flexible container may be removably or permanently attached to the hollow scaffolding by an appropriate attaching means, for example, Velcro®, glue, snaps, zipper or welding.
In other embodiments, the scaffold component is externally associated and the flexible container is held open by the externally associated scaffold component. Such packaging systems may compete with current cylindrical items, because round bottles placed next to each other leave a space between them that can accommodate corner-shaped scaffolding components. An externally associated hollow scaffold component may comprise a flexible container that has attached corners or other external components that form the hollow scaffolding component. The hollow scaffolding component may comprise of one or more compartments that may be interconnected by way of one or more apertures between the compartments, or may be inflated independently.
In some embodiments, the hollow scaffold component may be integrated into the flexible container such that the flexible packaging system shape is formed by a single continuous component. In one embodiment, a method for producing a flexible packaging system is illustrated in
The term “weld,” “welding,” “welded” or the like as used herein refers to melting the films together. In addition the films and/or scaffolding could be joined by other means known in the art including adhesives or other fastening means.
In other embodiments, the hollow scaffold component may be formed from two or more film sheets forming a ribbing system integrated within the flexible container walls. In one embodiment, a method for producing a flexible packaging system is illustrated in
The flexible packaging system may take the form of any shape beneficial to efficient storage, trademark design, or other marketing strategies. In some aspects, the flexible packaging system is in the shape of a bottle, cup, tray, cylinder, tapered cylinder or bag to be used for holding food and drink products, personal hygiene products, detergents and soap, and any other suitable household or commercial products, or consumer, industrial or military products that require rigid or semi-rigid storage, for example, for liquids, gels, powders, fragile contents, and food products.
The flexible container and the hollow scaffolding component may be made of any substance or substances suitable for packaging materials, and may be associated with sustainable packaging. Such substances include, but are not limited to any flexible plastic material or a combination thereof, for example, rubbers, polyesters, nylons, mylars, Saran Wrap®, PETE, cellophane, polyethylene, PVC, LDPE, Polypropylene, and EVA that may be formed into thin sheets or films, thereby producing a packaging container that is light, thin and easily stored or transported in a very small area when deflated. The materials may be recyclable, biodegradable, compostable, or any combination thereof, and may also include aluminized or other treated films.
Another embodiment is directed to a semi-flexible container that has an embedded fiber matrix that assists in providing the shape of the packaging system.
The ability to transform uninflated thin films or shells into inflated rigid or semi-rigid containers allows the packaging to remain functional while reducing the environmental costs of other traditional packaging. Thus, the flexible packaging system described herein may be suitable for replacement of glass jars, metal cans, and rigid plastic bottles such as for shampoo or household goods. In one embodiment, the uninflated flexible packaging system may be transported in a flat or substantially flat state, wherein one or more flat or substantially flat packaging systems are stacked on top of each other. In another embodiment, a plurality of uninflated flexible packaging system units may separably attached to each other and formed into a roll of stock.
The ability to transport and store flexible packaging systems in an uninflated state as described herein conveys substantial benefits to a user of such packaging systems with respect to the transport and storage of the flexible packaging system. For example, one truckload of unfilled, flat or rolled flexible packaging system is equivalent to approximately 25 truckloads of unfilled glass jars. Therefore, the uninflated flexible packaging systems may be economically shipped to users, stored in a smaller storage space, and may be inflated prior to use, deflated after use, or both. In one embodiment, the uninflated flexible packaging system may be kept in storage until needed, and inflation of a flexible packaging system may occur immediately prior to use. In other embodiments, the inflation may occur at a predetermined time, prior to use.
The use of a thin, flexible container also reduces the chance of damage to the packaging system. Traditional rigid containers such as thick plastic, metal, or glass may be dented, punctured or broken at the local force application point during an impact event that may occur in transit or other handling. The flexible packaging system described herein retains semi-flexibility such that upon impact, the shape of the container will be retained after a load is removed.
In some embodiments, the flexible packaging system may include additional inflatable or foam-filled appendages to provide a handle or other carrying means for use in applications such as soups, coffee cups and other applications that require mitigation of heat transfer to the person handling the system.
In some embodiments, internal ribbing supports may be included to add tension features that would constrain the container expansion against the scaffolding pressures and/or to help create the final shape of an expanded flexible packaging system. In some aspects, as shown in
In other aspects, the internal ribbing supports are pressurized. As shown in
In some embodiments, the flexible packaging system may comprise an open-top container such as a cup, a bag, a tray, or another container that can be used to hold liquids, creams, gels, powders or other products or materials. In some aspects the hollow scaffolding component may be enlarged or thickened to provide insulation for heated products, such as for hot drinking cups or food trays to be used in the microwave. An open-top container may also include an associated lid, such as a lid to cover a food tray or a cup to allow for more efficient transport when full.
In some embodiments, the flexible packaging system is a closed system, for a one-time use. In other embodiments, the flexible packaging system includes an integrated closure assembly that allows a packaging system to be opened and closed multiple times. The closure assembly may comprise a removable and resealable peel-top portion of the flexible container or may comprise a separate opening system such as a screw top, a snap-cap top, a flip top, a cork or plug-type system, or any other suitable recloseable independent closure assembly.
In some embodiments, inflation of the flexible container system may be accomplished by a machine that fills the inflatable hollow scaffolding component with air, gas, foam, or any other suitable substance to pressurize the scaffolding component. In other embodiments, the flexible container system may be self-inflating. In one embodiment, a self inflatable system includes two or more compartments, each compartment filled with components that, when mixed, will form the gas or foam necessary to fill the hollow scaffolding component. Suitable components that can form gas include, but are not limited to any acid mixed with a form of carbonate, such as citric acid and sodium bicarbonate, will produce carbon dioxide that may pressurize the hollow scaffolding component. Alternatively, the gas may be produced by blowing agents used in the plastics industry such as Ezio di Carbonamides that produce carbon dioxide when heated. The components may be in the form of liquids, solids, powders or any combination thereof. Suitable components that can form the foam include, but are not limited to compounds such as mixtures of isocyanates and polyols.
In another embodiment, the hollow scaffolding system may contain beads, capsules, small bags, or other means to hold the necessary ingredients that, if mixed, will generate the gas or foam required to fill the hollow scaffolding component.
In one aspect, the beads or capsules may be activated by palpating their location and squeezing the scaffolding component, causing them to break open, releasing their contents. In another aspect, the beads may be placed in an area of the scaffolding wherein the act of filling the container with the product or products it was designed to hold will break the beads such that the gas or foam released will cause the scaffolding to be filled simultaneously with the flexible container. In another aspect, the beads may be broken upon quick freezing or flash heating. In another aspect, extra beads or capsules may be added such that if a container starts to lose rigidity due to loss of gas over time, the extra beads could be squeezed to release additional gas.
In other embodiments, other means known in the art may be employed to inflate or fill the scaffolding component of the flexible packaging system including heating or cooling, localized laser or radiation means, for example microwaves to activate release of foam or gas. In other embodiments, other means may be employed to fill or inflate the scaffolding such as explosives or similar. For example, a pellet of sodium azide (NaN3) may be ignited causing a rapid reaction generating nitrogen gas (N2) to fill the scaffolding. Potassium nitrate and silicon dioxide can be used in secondary and tertiary reactions to deal with the liberated sodium.
In another embodiment, small chambers are provided that may act as expansion chambers. Such expansion chambers may be necessary to avoid explosion of the scaffolding component due to expansion of the gas or foam that may occur due to heating or shipping by plane or other means of shipping that requires travel through high altitude regions.
In another embodiment, the flexible container and associated hollow scaffolding component may be manufactured from the same, substantially the same, similar materials, or any combination thereof that would allow recycling of the both the flexible container and associated hollow scaffolding component together.
Referring to
Referring to
Referring to
In another aspect of any of the previous embodiments, the flexible packaging system including a scaffolding component and flexible container or shell can be formed from two or more bonded sheets wherein one or more of the sheets includes weak areas, for example, areas with reduced or no bonding between the sheets, at which the scaffolding would expand upon inflation. The weak areas can be designed into the one or more sheets prior to manufacture or modified, after the two or more sheets are bonded, by a secondary process wherein when the scaffolding is pressurized, the expansion occurs at the weakest areas in the one or more sheets. The weak areas can be of any configuration, for example, a configuration to form any container system set forth herein.
In other aspects of the previous embodiments, the container system may include an internal reservoir or weak area that is designed to expand if over-pressurization occurs due to altitude changes or temperature changes or pressure changes, or the container system may include several laminated layers so that different properties can be created, for example, to hold modified atmosphere or oxygen scavenging systems.
In other embodiments, the container may be configured such that the gas or other material used to inflate or fill the scaffolding diffuses out of the scaffolding over time such that the gas or other material used to inflate or fill the scaffolding diffuses to the interior of the container, the exterior of the container, or both. Such embodiments can be configured to indicate the expiration or “shelf life” of the contents of the container by, for example, deflating the scaffolding after a predetermined time. In other aspects of these embodiments, the diffusion may be used to provide a particular gas or other material to the interior of the container over time to, for example, preserve the contents of the container or for other purposes.
Although the invention has been described with respect to specific embodiments, it will be readily appreciated by those skilled in the art that modifications and adaptations of the invention are possible without deviation from the spirit and scope of the invention. Accordingly, the scope of the present invention is limited only by the following claims.
Claims
1. A flexible packaging system comprising:
- a flexible or semi-flexible container; and
- an inflatable hollow scaffolding component;
- wherein the flexible packaging system is configured to be rigid or semi-rigid upon inflation of the hollow scaffolding component by air, gas or foam.
2. The flexible packaging system of claim 1, wherein the hollow scaffolding component is internally-associated with the flexible container.
3. The flexible packaging system of claim 1, wherein the hollow scaffolding component is externally-associated with the flexible container.
4. The flexible packaging system of claim 1, wherein the hollow scaffolding component includes a first opening for inflation or deflation, and wherein the first opening can be permanently sealed or releasable sealed.
5. The flexible packaging system of claim 1, wherein the hollow scaffolding component is self-inflating.
6. The flexible packaging system of claim 5, wherein the hollow scaffolding component is associated with two or more compartments that contain two or more inflation components, that, when mixed, form the necessary gas or foam to pressurize the hollow scaffolding component.
7. The flexible packaging system of claim 5, wherein the hollow scaffolding component contains pellets, capsules or beads that contain two or more ingredients that, when mixed, form the necessary gas or foam to inflate the hollow scaffolding component.
8. The flexible packaging system of claim 1, wherein the flexible packaging system further comprises one or more internal supports.
9. The flexible packaging system of claim 8, wherein the internal supports are comprised of ribbing or webbing.
10. The flexible packaging system of claim 1, wherein the flexible packaging system is configured to be in a substantially flat condition upon deflation of the scaffolding.
11. The flexible packaging system of claim 1, wherein the flexible packaging system has an opening that allows for filling or pouring products to be held within.
12. The flexible packaging system of claim 11, wherein the opening is comprises with an integrated closure assembly.
13. The flexible packaging system of claim 11, wherein the opening is configured to receive a separate closure assembly.
14. The flexible packaging system of claim 13, wherein the closure assembly is selected from a resealable peel top, a screw top, a snap top, a flip top, or a cork, press top, or plug-type system.
15. The flexible packaging system of claim 1, wherein the hollow scaffolding component includes one or more handle-like appendages.
16. A flexible packaging system comprising:
- a flexible or semi-flexible container;
- a hollow scaffolding component; and
- one or more internal supports;
- wherein the flexible packaging system may be made rigid or semi-rigid by inflation of the hollow scaffolding component.
17. The flexible packaging system of claim 16, wherein the flexible packaging system is made from a plastic component and formed into thin sheets.
18. The flexible packaging system of claim 16, wherein the container comprises a thin shell or film.
19. The flexible packaging system of claim 16, wherein the container comprises an embedded fiber matrix.
20. The flexible packaging system of claim 16, wherein flexible packaging system may be substantially flat or in a roll when in a deflated state.
21. The flexible packaging system of claim 16, wherein the one or more internal ribbing supports are selected from the group consisting of string, webbing and membranes.
22. The flexible packaging system of claim 16, wherein the one or more internal supports are inflatable.
23. A flexible packaging system of claim 16 further comprising an expansion chamber in fluid connection with the scaffolding that will expand and reduce in size to accommodate changes in temperature after inflation of the scaffolding to maintain the rigidity of the container for use.
24. A method for providing a flexible packaging system for holding a product, wherein an unfilled flexible packaging system is provided and utilized according to a method comprising:
- providing at least two uninflated flexible packaging containers, wherein the uninflated flexible packaging containers are substantially flat and are provided in a stack or roll;
- inflating the one or more flexible packaging containers prior to use; and
- wherein the flexible packaging containers comprise a flexible container and a hollow scaffolding component that may be made substantially rigid by inflation of the hollow scaffolding component.
25. The method of claim 24, wherein each of the uninflated flexible packaging containers is not attached to an adjacent flexible packaging container.
26. The method of claim 24, wherein each of the uninflated flexible packaging containers are separably attached to an adjacent flexible packaging container.
27. The method of claim 24, wherein the uninflated flexible packaging containers are self-inflating.
28. The flexible packaging system claim 16 wherein the scaffolding is configured to be deflated following use.
29. The method of claim 24, wherein the stack or roll is comprised of a matrix of individual uninflated containers for providing at least two containers for substantially simultaneous inflation of the at least two containers.
Type: Application
Filed: Jun 4, 2010
Publication Date: Dec 9, 2010
Inventor: Elie Helou, JR. (Santa Barbara, CA)
Application Number: 12/794,286
International Classification: B65D 90/02 (20060101); B65B 3/04 (20060101);