The present disclosure relates to inflatable flexible structures.
Protective packaging elements, such as paper or other dunnage, or inflatable protective packaging, such as fluid (e.g., air) inflatable packaging or foam-in-bag protective packaging, are used to provide added protection to objects during packaging. The protective packaging elements are typically configured to surround an object that is to be protected. Typically, a product is packaged with protective packaging inserted next to the product in the container. In transit, the contents of the container often move and reposition themselves such that the protective packaging does not effectively protect the product from damage. In order to avoid this inadequacy, packagers in some cases will wrap the protective packaging around the product and then apply adhesive tape to the protective packaging. The application of the tape, however, can be cumbersome, especially when packaging numerous products.
In accordance with various embodiments, a connective protective packaging element is provided. The connective protective packaging element may include a protective body in a high-density supply configuration. The protective body may be configurable into a low-density configuration for cushioning packaged products. The body may include an exposed surface in the low-density configuration. The connective protective packaging element may also include a bonding element attached to the exposed surface that operably bonds the exposed surface to an abutting surface by contact with the bonding element.
In accordance with various embodiments, the bonding element may be a sticking element that operably sticks to and holds the exposed surface to the abutting surface by contact with the sticking element. The protective body may include a web having first and second overlapping plies that are connected together to define therebetween a fillable chamber to contain a filler element that separates the wall plies in the low-density configuration. The first ply may include the exposed surface with the sticking element. The film plies are connected together to trap a fluid therebetween when sealed, such that the protective packaging element is an inflatable cushion. The fluid may be air. The film plies may be connected together by an airtight seal. The abutting surface is another part of the exposed surface, the sticking element being disposed on the exposed surface to contact the abutting surface when the web is folded over itself. The protective packaging element may be a foam-in-bag cushion. Alternatively, the protective packaging element may be paper dunnage.
In accordance with various embodiments, the abutting surface may be another part of the exposed surface. The sticking element may be disposed on the exposed surface to contact the abutting surface when the packaging element is folded over itself. The sticking element may be disposed on the exposed surface for sticking to an abutting surface of a product that is packaged there against. The sticking element may be disposed on the exposed surface for sticking to an abutting interior surface of a container in which the protective packaging element is received to retain the connective protective packaging element in a position against the container while a product to be protected is being packaged. The sticking element may be adhesive that sticks to other surfaces. The sticking element may be a cohesive. The one or more surface includes a surface proximate an edge of the connective protective packaging element. \
In accordance with various embodiments, a web supply of web material is provided. The web supply of web material may include a first film ply having first and second longitudinal edges. The web supply of web material may include a second film ply having first and second longitudinal edges. The second film ply may be aligned to be overlapping with the first film ply so that the first respective first longitudinal edges are aligned with each other and the second respective longitudinal edges are aligned with each other. The web supply of web material may also include a plurality of seals sealing the first and second plies to each other to define one or more inflation chamber between the first and second plies that are each inflatable with and configured to contain a fluid. Separation regions may be located between adjacent inflation chambers to allow separation of the plies and provide a plurality of cushions. The plurality of seals are disposed in a repeating seal pattern to form cushions having a similar shape. A plurality of bonding elements may be disposed on an exposed surface of the first film ply. The plurality of bonding elements may be disposed in a repeating pattern so that each of the cushions has at least one bonding element. Each bonding element may be a sticking element that operably sticks to and holds the exposed surface to the abutting surface by contact with the sticking element.
Disclosed is connective protective packaging having an exposed surface that includes a bonding element. The connective protective packaging has a protective body. The body can be provided in a high-density supply configuration that is reconfigurable into a low-density configuration for cushioning packaged products. In the low-density configuration, the protective body includes an exposed surface with a bonding element attached to it. The bonding element operably bonds the exposed surface to an abutting surface by contact with the bonding element to connect these surfaces. In some embodiments described below, the bonding element is a sticking element that operably sticks to and holds the exposed surface to the abutting surface by contact with the sticking element.
The connective protective packaging has portions that can connect to itself, to other protective packaging, or to other objects. As described below, the sticking element can have a sufficient degree of stickiness to hold the exposed surface to one or more other surfaces. The one or more other surfaces can be another surface of the protective packaging itself; a surface of another piece of protective packaging; a surface of a product being packaged; and/or a surface of a container. Thus, the sticking element can help maintain the configuration and position of the connective protective packaging to further improve its ability to protect products during shipping, handling, or similar conditions. The exposed surface can be an exterior surface of the protective packaging element, or another surface that is exposed in that it comes into contact with another surface which with it will be stuck (e.g., by folding onto the other surface to stick therewith).
In accordance with various embodiments, the connective protective packaging can include traditional types of packaging, such as paper or other dunnage, or inflatable protective packaging, such as fluid (e.g., air) inflatable packaging or foam-in-bag protective packaging, examples of which are described below. In preferred embodiments, the packaging is flexible. By applying the sticking element to the outside of the connective protective packaging and folding the connective protective packaging over on itself, a pocket is formed in which the product is placed. In some embodiments another portion of the connective protective packaging can then be fold over the product or the formed pocket to further secure the object therein.
Various type of cushions that form the connective protective packaging are disclosed below, but other suitable types of cushions may be used as well consistent with the disclosure herein.
In accordance with various embodiments, the connective protective packaging can include protective flexible packaging. One example of protective flexible packaging is a fluid filled cushion. In various examples of fluid filled cushions, the fluid filled cushion (e.g., air cushion) is made by sealing plies of plastic to form a series of flexible, plastic, inflation chambers that can be connected and adjoined in parallel to or in series with each other. An inflation channel can direct air to the tubular portions. This may be done continuously or discreetly. In some examples all of the separate tubular portions may be connected together in other examples the tubular portions may be separate and accessible (e.g., via one-way check-valves, an inflation region, etc.) to inflate the inflation chambers and maintain them in an inflated state. Once inflated, one or more air cushions are configured to surround and cushion a product that is to be protected. An example of such an air cushion is the AIRSPEED® CHAIVIBERPAK™ by Pregis Corporation. Descriptions of other examples of inflatable air cushions can be found in, for example, U.S. Pat. No. 5,261,466, and U.S. Application Publication Nos. 2003/0108699, 2004/0163991, and 2005/0109656.
As shown in
The first and second walls 5, 7 can be formed from the first and second plies 27, 29. The first and second walls 5,7 can be formed from a single sheet of material, a flattened tube of film material with one or more edges slit, or two sheets of film material. For example, the first and second walls 5, 7 can include a single sheet of film material that is folded to define the joined second edges 4, 8 (e.g., “c-fold film”). The c-folding film material 10 can form the first and second plies 27, 29. Alternatively, for example, the first and second walls 5, 7 can include a tube of film material (e.g., a flattened tube) that is slit along the aligned first longitudinal edges 2, 6 and/or the second longitudinal edges 4, 8. The flattened tube can form the first and second plies 27, 29. Also, for example, the first and second walls 5, 7 can include two independent sheets of film material joined, sealed, or otherwise attached together along the aligned second edges 4, 8. The two independent sheets of film material can be the first and second plies 27, 29.
The plies 27,29 may in some embodiments include a separation region, for example, system of perforations forming a region of weakness 26 extending transversely across the ply 27, 29, or in other desired directions. This type of perforation may allow the sheet to be separated into individual pads or sheets with a single continuous inflation process. In some embodiments, the regions of weakness extend completely across the plies or sufficiently across the plies to facilitate complete separation of portions of the web.
For protective packaging applications, the disclosed film 10 can be converted by sealing two plies 27, 29 (multilayer or mono-layer) to each other to provide the supply material of inflatable cushions that can be inflated to provide inflated cushion protective packaging. In some embodiments, the plies 27, 29 are two sheets of a ply 27, 29. The plies 27, 29 may be heat sealed in a predetermined pattern and then may be inflated with a fluid, such as air. The plies 27, 29 can be sealed together to form the described structures with a process such as adhesively bonding, friction, welding, fusion, heat sealing, laser sealing, and ultrasonic welding.
The converted film 10 can be configured for use in a continuous inflation and sealing device, as disclosed in the '658 application or U.S. Pat. Nos. 8,454,779 and 8,061,110, for instance. Devices can be employed that convert, inflate, and seal the plies in-situ, such as disclosed in U.S. Pat. No. 6,789,376. Alternatively, the film 10 can be provided with check valves between the plies 27, 29 to seal the fluid in one or more inflated chambers, for example as disclosed in U.S. Patent Application Publication No. 2004/0163991, for inflating a single cushion at a time or for inflating on a continuous inflation machine that does not employ a heat sealer. In other embodiments, the film 10 can be used in a device for inflating the film 10 with foam precursors and sealing the film 10 for foam-in-bag protective packaging, such as disclosed U.S. Pat. No. 9,138,921.
As used herein, the film 10 may be comprised of the plies 27, 29 in any combination of layers, materials, and/or manufacturing processes discussed above. For example, film 10 may comprise at least one bi-directionally oriented film ply 27, 29 made up of a barrier layer positioned and connected to two sealing layers according to the disclosure above. In another example, film 10 may comprise a traditional film ply 27, 29 having a single layer with the grain in the longitudinal direction. The film plies 27, 29 may form walls 17, which may be formed of any of the materials, compositions or structures discussed above.
Referring again to
Each transverse seal area 21 may have a first end 22 proximate the second longitudinal edge 2, 6 and a second end 24 proximate the longitudinal seal 23. Each transverse seal area 21 may be substantially straight, bent, or otherwise curved, and extend substantially perpendicular to the longitudinal edges 2, 6. The one or more chamber 19 may be defined within a boundary formed by the longitudinal seal 23 and pairs of adjacent transverse seals 21. The width of each inflation chamber 19 may be at least about ½ inches to about 3 inches. Or in another example, about 1 inches to about 2 inches.
The inflatable cushion 18 may include an inflation region, which is a zone in fluid connection with the inflatable chambers to feed the fluid from an inflation nozzle into the chambers. In some embodiments, the inflation region can be provided by one or more flaps and be open laterally to the exterior of the cushion. For example, two opposing flaps can be used, providing an inflation region that is open along its length, such as on a transverse side thereof. These open inflation regions can be used in inflation and sealing machines, for instance, that pinch the flaps about a nozzle and sealer.
In other embodiments, the inflation region is a passageway that is closed on its transverse sides to provide an inflation channel 14. The longitudinal inflation channel 14, as shown in
The cushion 18 also includes an inflation opening or entrance 16. The inflation entrance 16 is disposed on at least one end of the longitudinal inflation channel 14. The entrance 16 is defined by the walls 17 (e.g., outer walls 5, 7) and is configured and dimensioned for receiving an inflation nozzle (e.g., nozzle 20) therein. The inflation nozzle may be any nozzle such as, for example, the one discussed in U.S. Pat. No. 8,424,552.
Referring to
Each of the one-way check valves 13 fluidly connects the inflation channel 14 to a respective tubular portion 19. In the uninflated state, for example during shipping of the cushions 18, the entrance 16 is closed and flat, and the check-valves 13 are in a closed position. Upon opening of the aperture 16 by the inflation nozzle 20, air can be delivered into the inflation channel 14. The operating pressure at which the air is delivered into the inflation channel 14 opens the check-valves 13 to allow air to pass into the tubular portions 19 to inflate the remaining portions of the cushion 18. Once inflation of the cushion 18 is complete, the pressure of the air within each tubular portion 19 acts against the check valves 13 to keep the valves in the closed position, thus preventing air from escaping and the cushion from deflating.
In some embodiments, the inflatable cushion 18 further includes seal segments 28. The seal segments divide the inflatable chambers 19 in transverse chamber portions 19. The seal segments 28 may be aligned longitudinally and separated by transverse seals 21. The seal segments 28 create bendable lines that allow for a more flexible film 10 that can be easily bent or folded. Such flexibility allows for the film 10 to wrap around regular and irregular shaped objects. The chamber portions 19 are in fluid communication with adjacent chamber portions 19 a as well as with the inflation channel 14. As shown in the example, passages 19b extend between chamber portions 19 a on either side of the seal segments 28.
In accordance with various embodiments, separation regions comprise a series of lines of weaknesses 26 may be disposed along the longitudinal extent of the film 10. The transverse lines of weakness 26 facilitate separation of adjacent inflatable chambers 19.
In accordance with various embodiments, the connective protective packaging can include dunnage made out of paper or other suitable material, which is typically converted into dunnage from a supply a sheet material, whether individual sheets or a continuous sheet. The supply material can be converted by crumpling, folding, flattening, creasing, or other similar methods that converts high-density configuration to a low-density configuration. Most commonly, this type of dunnage is created by running a generally continuous strip of paper into a dunnage conversion machine that converts a compact supply of stock material, such as a roll or stack of paper, into a lower density dunnage material. The continuous strip of crumpled sheet material may be cut into desired lengths to effectively fill void space within a container holding a product. Various structures of the converting station can be used, such as those converting stations disclosed in U.S. Pat. Nos. 8,962,909, 8,388,508, and 8,016,735. A sticking element can be provided on an exposed surface of the dunnage in configurations as described herein, such as with respect to
In accordance with various embodiments, the connective protective packaging can include other types of cushioning materials as well. For example, the connective protective packaging may include foam-in-bag (FIB) cushions. In the context of FIB, foam precursors (e.g., polyurethane foam precursor) can be dispensed in a FIB bag interior and the precursors mix together within the bag to form a “hardened” product (e.g., a “hardened” polymeric product) that has a cushioning quality. Examples of foam-in-bag packaging elements are described in U.S. Publication 2013/0047551. The FIB bag can be made of film plies having exposed surfaces, and one or more portions of an exposed surface has a sticking element, for example, similarly to as described below with reference to
As discussed above, a sticking element can be disposed on the exposed surface of protective packaging to provide a connective protective packaging. The sticking element can be provided on the film. Referring to
The bonding element preferably comprises a sticking element that provides a sufficiently strong connection through stickage to maintain the desired connection in use. For example, the degree of stickiness of the sticking element can provide the stickage with sufficient connective strength to withstand effects on the protective packaging due to impacts on the container and product during shipment.
In cases in which the protective packaging material is inflatable cushions, for instance, the stickage strength of the connection can be sufficient to withstand effects that stretch and bend the plies due to pressurization of the fluid filled chambers that can be caused, for example, by sharp edges of localized forces from the packaged product. In cases in which the connective protective packaging is stuck onto an interior surface of a container, the strength of the stuck connection can be sufficient to withstand impacts and friction by the product as the container is jostled.
In some embodiments, the sticking material has provides a high degree of stickage and holding, to provide an aggressive bond, which in some cases is stronger than the material of the protective packaging on which it is employed, so that the protective packaging would be destroyed before the connection of the sticking element. In other embodiments, the degree of sticking strength is less, providing a weak bond so that the stickage connection is used to facilitate assembly of the packaging around the product, and then to facilitate disassembly and unsticking thereafter, such as by the recipient who unpacks the product.
The sticking element suitably connects and holds the exposed surface of the protective body to an abutting surface by contact with the sticking element. The sticking element preferably sticks by contact and in some cases upon application of pressure. Preferably the sticking element is selected to provide the stickage-based bond without requiring heat or other materials to be applied, although in some embodiments, other steps may be followed to product the stickage.
The sticking element may include an adhesive or cohesive material to provide an adhesive or cohesive surface, respectively. A combination of adhesive and cohesive surfaces can be used. The sticking element can be applied directly to the exposed surface of the material by suitable known methods, or it can be applied on a tape, such as a double sided tape, or other suitable methods
As used herein, an adhesive sticking element is made of a material that adheres to other types of surfaces, preferably such as ones that would be typically be found in the vicinity of protective packaging, such as to plastic, paper, or metals. The adhesive can stick to an opposing surface without relying on the opposing surface having the same or a complimentary material for the stickage to take place to form a connection between the two surfaces. Examples of suitable adhesives include liquid adhesives, and pressure sensitive adhesives. Pressure sensitive adhesives can be selected that stich after applying a slight, initial, external pressure to create the bond. Examples of these include water-based, acrylic, pressure sensitive adhesives, similar to what is applied to packaging tape, which material holds two surfaces together solely by surface contact, often upon a slight initial external pressure. These are examples dry adhesives, which typically require no activation with water, solvent or heat, and firmly adhere to many dissimilar surfaces. Pressure sensitive adhesives can be selected that are aggressive and permanently tacky at room temperature. Pressure sensitive adhesive application and use can be automated. When used in assembly, pressure sensitive adhesives that do not require setup or long curing times can be used to save time compared to using typical liquid adhesives. Adhesion is preferably immediate with pressure sensitive adhesives, allowing manufacturing procedures to continue uninterrupted, which can results in significant time and labor savings. Examples of water based, acrylic, pressure sensitive adhesives include those known as RHOPLEX N-1031 Emulsion, RHOPLEX N-580 Emulsion, and RHOPLEX N-619 Emulsion. Other emulsion polymers or acrylic polymer blend adhesives are also known, and other suitable types of adhesives and of contact adhesives can be used.
A cohesive material of the sticking element causes one surface to stick to an opposing surface by coming into contact with the same or a complimentary cohesive substance to form the bond between the two surfaces. Cohesives, in which opposing cohesives stick to one another, do not stick to other substances sufficiently to adhere to those other substances (e.g., other surfaces of the protective packaging material that do not have a cohesive element, surfaces of the container, surfaces of the product to be shipped), or in some cases would stick very weakly compared to the bond they form from sticking to each other. A cohesive can be a pressure sensitive cohesive, in which pressure is required to activate the bond. Examples of a suitable cohesive material from which the cohesive sticking elements can be made include natural and synthetic latex-based cohesives. The cohesive material in some embodiments is applied as a liquid to the appropriate portion of the protective packaging material, and in others is applied in other known forms. Some types of cohesives, such as ones made with latex, is mixed with water without additional adhesives to bond to the respective, non-cohesive, portion of the protective packaging material, and upon drying remains stuck to the exposed surface of the protective packaging material to which is has been applied. In some embodiments, the cohesive material can be mixed with an adhesive, often applied as a liquid, onto the protective packaging material. The adhesive can be selected so that after applying the cohesive and adhesive mixture onto the protective packaging material (e.g., onto a film ply), the adhesive evaporates, leaving the cohesive bonded to the non-cohesive protective packaging material (e.g., onto a film or paper ply). One method of liquid application is spraying, although brushing or other suitable methods can be used. Also, other suitable methods of applying the cohesive to the non-cohesive material surface can alternatively be used.
In accordance with the various embodiments provided herein, when one or more surfaces of a connective protective packaging material has a sticking element applied thereto, the sticking element facilitates configuring and/or using the connective protective packaging material (e.g. the cushion) with items that are to be protected. For example, the sticking element can allow the one or more surfaces to stick to another portion of the surface or to another surface of the connective protecting packaging element to either form a pocket or better contain the item to be protected. By allowing the protective packaging to connect to itself or another surface, the one or more surfaces having a sticking element allow the connective protective packaging to better encase the product forming a pouch, bag, or other similar barriers. Also, chains of cushions can be lengthened by attaching cushions to one another via the sticking elements.
While
For embodiments in which the sticking element is an adhesive or has an adhesive property, the sticking element 104 can adhere to any suitable portion of the exposed surface 107. Thus, a user can wrap the cushion 100 around the product and adhere the sticking element 104 to another portion of the surface 107 to provide a pouch appropriately configured to encase the product 102. Thus, the cushion 100 can be used to effectively encase and protect various sized products 102. For embodiments in which the sticking element 104 on the first exposed surface portion 108 has a cohesive applied thereto or has a cohesive property, the second exposed surface portion 110 can have a corresponding cohesive sticking element 104 causing the second exposed surface portion 110 to connect to the first exposed surface portion 108 in response to coming into contact with one another. Multiple sticking elements 104 can be placed on the exposed surface 107 to provide multiple sizes of pouches for accommodating various sized products 102.
In other embodiments, the sticking element may be distributed in different ways across multiple cushions. For example, in situations in which the sticking element 104a, 104b is an adhesive, one of the cushions 100, 101 has both sticking elements 104a, 104b and the other of the two cushions 100, 101 does not have any sticking elements. In another example, one of the cushions 100, 101 has sticking element 104a and the other of the cushions 100, 101 has sticking element 104b. In another example, both cushions 100, 101 have both sticking elements 104a, 104b.
In other embodiments, both cushions can have corresponding sticking elements. For example, in situations in which the sticking element 104a, 104b is a cohesive, the cushions 100, 101 can each have corresponding sticking elements 104a, 104b that stick to one another when the surfaces abut one another. In some embodiments, the sticking elements 104a, 104b is positioned substantially equidistant from a natural hinge, such as an elongated seal line or a group of aligned seal lines, so that when the protective packaging is folded at the natural hinge, the sticking elements 104a, 104b align. The natural hinge (e.g., seal line) can be straight, bent, or otherwise curved. For example, the natural hinge can be non-linear to accommodate unusually shaped products, so that the sticking elements align when packaging is wrapped around the product.
As shown in
The sticking element's 104 ability to connect surfaces can be controlled, which can be particularly advantageous in cases in which the sticking element 104 is an adhesive. For example, a release layer can be disposed on top of the sticking element 104 and removed when the cushion is used to package a product. Additionally or alternatively, the stickiness of the sticking element 104 can be controlled. For example, the sticking element 104 can possess sticking properties only when it is exposed to certain substances. For example, the sticking element 104 can be water activated, and water can be applied to the sticking element 104 (e.g., by a user or by a machine) to make the sticking element 104 able to stick to other surfaces. The sticking material may be able to stick to some materials and not to others (e.g., unable to stick to Polytetrafluoroethylene (PTFE) (e.g., Teflon®)); one or more portions of exposed surfaces of the connective protective packaging can have such materials so to avoid undesired sticking.
Referring now to
While the above description refers to a sticking element having a sticky property, it should be understood that sticking element can have any suitable type of connective property while remaining within the scope of this disclosure. The sticking element forms a connective, adhesive, or cohesive force that is sufficient to prevent or limit separation of the two surfaces during transportation and handling of the product. In some embodiments, the connective, adhesive, or cohesive force exceeds the strength of the martial that the adhesive, or cohesive is applied to. For example, a sticking element is provided that connects the surfaces together with a connection (e.g., a bond) that is stronger than the material to permanently bond the surfaces together. In some cases, a sticking element is provided that connects the surfaces together with a connection (e.g., a bond) that is substantially weaker than the material, for example, to allow the connected surfaces to become separated. For example, when a cushion is folded and surface portions of the cushion are connected via sticking element to encase a product, then a user can pull the surfaces apart to open the pouch and access the product. Also, when a cushion is connected to a surface of a container, a user can pull the cushion off of the surface of the container to more easily dispose of (e.g., recycle) the container and cushion.
With reference to
8J, and 8L show embodiments in which sticking element 614; 615; 616, 617; 618, 619 have patterns such that the cushions can be folded onto themselves to provide differently sized product containment areas for encasing variously shaped products.
In embodiments in which the sticking element 1004 is a cohesive, the release material 1005 can be a portion of the web that is free from cohesive. In embodiments in which the sticking element 1004 is an adhesive, the release material 1005 can have a release layer that the adhesive does not stick to. In embodiments in which the sticking element 1004 is an adhesive that adheres to some materials and not to others, then the release area 1005 can have such other material (e.g., Polytetrafluoroethylene (PTFE)).
In accordance with various embodiments and as illustrated in
Those of ordinary skill in the art will understand that the disclosed embodiments can be adapted and modified to provide alternative embodiments for other applications, and those other additions and modifications can be made to the disclosure without departing from the scope of the present disclosure. For example, features of the illustrative embodiments can be combined, separated, interchanged, and/or rearranged to generate other embodiments. Such modifications and variations are intended to be included within the scope of the present disclosure. Similarly, the subject matter discussed herein may also be incorporated into the various system disclosed in the incorporated references. Embodiments are not meant to stand alone, but may be combined with other embodiments from other referenced applications or various other embodiments disclosed herein.
This present application is a continuation of U.S. patent application Ser. No. 15/721,215, filed Sep. 29, 2017, which claims priority to U.S. Provisional Patent Application No. 62/402,378, filed on Sep. 30, 2016, which are incorporated herein by reference in their entirety.
Number | Date | Country | |
---|---|---|---|
62402378 | Sep 2016 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 15721215 | Sep 2017 | US |
Child | 17391877 | US |