WO2017124049A1 - Matériaux et configurations d'emballages destinés à être utilisés dans un emballage fermé par des membranes perméables - Google Patents

Matériaux et configurations d'emballages destinés à être utilisés dans un emballage fermé par des membranes perméables Download PDF

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Publication number
WO2017124049A1
WO2017124049A1 PCT/US2017/013597 US2017013597W WO2017124049A1 WO 2017124049 A1 WO2017124049 A1 WO 2017124049A1 US 2017013597 W US2017013597 W US 2017013597W WO 2017124049 A1 WO2017124049 A1 WO 2017124049A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
package
permeable
peelable
sealant
Prior art date
Application number
PCT/US2017/013597
Other languages
English (en)
Inventor
Nicholas D. Mckay
Bao Trong Do
Eric Mehnert
Original Assignee
Enviroscent, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Enviroscent, Inc. filed Critical Enviroscent, Inc.
Publication of WO2017124049A1 publication Critical patent/WO2017124049A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
    • B65D75/325—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil
    • B65D75/326—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil and forming one compartment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/12—Apparatus, e.g. holders, therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B15/00—Layered products comprising a layer of metal
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    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
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    • B32B15/00—Layered products comprising a layer of metal
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    • B32B23/08—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
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    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
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    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
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Definitions

  • the present disclosure generally relates to produce packages and materials used for product packaging.
  • the materials and packages disclosed herein may form a receptacle for holding a product.
  • the materials and packages may include a gas impermeable layer configured to seal off the receptacle to prevent the product held therein from interacting with the surrounding air.
  • the gas impermeable layer of the material and package may be configured to be peelable by a user to expose a gas permeable layer.
  • the gas permeable layer may allow for gas exchange between the product and the surrounding environment.
  • Certain embodiments may be particularly useful for sealing a product including a volatile substances, such as, but not limited to, fragrance carriers and/or deodorizers.
  • Some traditional product packages may include bags formed out of film material or blister packs with pop-through films.
  • special considerations may be needed. Accordingly, further improvements may be desired.
  • Embodiments described herein are generally related to materials used for product packaging. Exemplary embodiments may be particularly useful for packaging products which include volatile substances or products activated upon exposure to the open atmosphere (e.g., oxygen activated or the like).
  • a product may include a volatile fragrance.
  • a product may include an oxygen activated compound.
  • the product may be a drug, aromatherapeutic agent, or moisture delivery device such as a hydrogel product.
  • packaging materials which are configured to package products which include volatile chemical substances.
  • certain embodiments may provide for product packages that are particularly well suited for minimizing undesirable interactions with the product and which provide a longer shelf life.
  • Some embodiments may also include a peelable barrier film that exposes permeable layer.
  • the permeable layer may provide a physical barrier that holds the product within the receptacle, but may also provide gas exchange so that the volatile substance of the product may be diffused into the surrounding air.
  • the permeable layer may prevent direct contact of the product with other surfaces. This may help reduce interaction of the volatile substance with surfaces in which the permeable layer rests on.
  • a package may include a barrier layer defining a receptacle for receiving and storing a product.
  • the receptacle may include an opening for receiving the product.
  • a permeable layer may be provided and coupled with the barrier layer.
  • a portion of the permeable layer may be configured to cover the opening of the barrier layer receptacle.
  • a peelable barrier film may be releasably coupled with the permeable layer.
  • a portion of the peelable barrier film may be configured to cover the portion of the permeable layer covering the opening of the barrier layer receptacle.
  • the peelable barrier film may be configured to be peelable from the permeable layer so as to expose the portion of the permeable layer covering the opening of the barrier layer receptacle.
  • a package may be provided.
  • the package may include a barrier layer defining a receptacle for storing a product.
  • the receptacle may include an opening for receiving the product.
  • a permeable layer may be coupled with the barrier layer.
  • a portion of the permeable layer may be configured to cover the opening of the barrier layer receptacle.
  • a peelable barrier film may be releasably coupled with the permeable layer.
  • a portion of the peelable barrier film may be configured to cover the portion of the permeable layer covering the opening of the barrier layer receptacle.
  • the peelable barrier film may be configured to be peelable from the permeable layer so as to expose the portion of the permeable layer covering the opening of the barrier layer receptacle.
  • the package is gas impermeable when the peelable barrier film covers the portion of the permeable layer covering the opening of the barrier layer receptacle.
  • the package may be gas permeable when the peelable barrier film is peeled to expose the portion of the permeable layer covering the opening of the barrier layer receptacle.
  • the permeable layer may be a non-woven fabric.
  • the permeable layer may be a polyester material.
  • the permeable layer may be 100% non-woven polyester.
  • the peelable barrier film may be an ethylene vinyl alcohol (EVOH) layer.
  • the peelable barrier film may be a peelable sealant layer configured to releasably couple the EVOH layer to the permeable layer.
  • the peelable sealant layer may be a low density polyethylene (LDPE).
  • the peelable barrier film may further include a tie layer configured to couple the peelable sealant layer with the EVOH layer.
  • the peelable barrier film may further include a foil.
  • the EVOH layer may be disposed between the foil layer and the permeable layer.
  • the peelable barrier film may further include a tie layer disposed between the EVOH layer and the foil layer.
  • the peelable barrier film may further include a sealant layer disposed between the tie layer and the foil layer.
  • the peelable barrier film may further include an ethyl acetoacetate (EAA) layer disposed between the sealant layer and the foil layer.
  • EAA ethyl acetoacetate
  • the peelable barrier film may further include a paper layer in some embodiments.
  • the foil layer may be disposed between the paper layer and the EVOH layer.
  • a sealant layer may couple the foil layer to the paper layer.
  • the paper layer may be a bleached or unbleached craft paper.
  • the peeiable barrier film may further include a
  • the EVOH layer may be disposed between the PET layer and the permeable layer.
  • the peeiable barrier film may further include a tie layer disposed between the EVOH layer and the PET layer.
  • An LDPE layer may couple the tie layer to the PET layer.
  • the receptacle is vacuum sealed.
  • the receptacle is sealed with an inert gas environment that is sealed in the receptacle by the peelabie barrier film.
  • the inert gas environment may be a nitrogen gas environment.
  • the product may be oxygen activated.
  • the product includes a fragrance and a fragrance carrier.
  • the peeiable barrier layer, the permeable layer, and the barrier layer may be heat sealed with one another in some embodiments.
  • the peeiable barrier layer may include a sealant layer configured to couple the peeiable barrier layer with the permeable layer.
  • the sealant layer may be configured to melt, protrude through holes of the permeable layer, and form a seal with the permeable layer (e.g., after cooling and solidifying).
  • the permeable layer may be configured to melt during heat sealing. .
  • a packaging material may be provided that includes a first sealant layer, a second sealant layer, an ethylene vinyl alcohol (EVOH) layer sandwiched between the first sealant layer and the second sealant layer, a first tie layer disposed between the first sealant layer and the EVOH layer, the first tie layer configured to tie the first sealant layer with the EVOH layer, and/or a second tie layer disposed between the second sealant layer and the EVOH layer.
  • the second tie layer may be configured to tie the second sealant layer with the EVOH layer.
  • the first sealant layer, the second sealant layer, the first tie layer, and the second tie layer may form a moisture barrier on both sides of the EVOH layer to extend EVOH barrier effectiveness against gas permeation.
  • the first sealant layer and the second sealant lay er may be low density polyethylene layers
  • the packaging material may further include a polyethylene terephthalate (PET) layer coupled with the first sealant layer such that the first sealant layer is positioned between the PET layer and the EVOH layer.
  • PET polyethylene terephthalate
  • the packaging material may further include a foil layer coupled with a first side of an ethyl acetoacetate (EAA) layer.
  • EAA ethyl acetoacetate
  • a second side of the EAA layer may be coupled with the first sealant lay er.
  • the first side of the EAA layer may be opposite the first side of the EAA layer.
  • the packaging material may further include a paper layer coupled with the foil layer.
  • a third sealant layer may be disposed between the paper layer and the foil layer.
  • the packaging material may further include a permeable layer coupled with the second sealant layer.
  • the permeable layer may be heat sealed with the second sealant layer.
  • the permeable layer may be a polymer material configured to melt during heat sealing so as to form an air tight seal with the second sealant layer.
  • the heat seal formed between the permeable layer and the second sealant layer may be configured to allow the second sealant layer to be peeled from the permeable layer.
  • a package may be provided that includes a non-permeable layer coupled with the permeable layer of the packaging material disclosed herein to form a receptacle for holding a product.
  • the non-permeable layer may couple with the packaging material with an air tight seal.
  • the second sealant layer may be configured to be peelable from the permeable layer of the packaging material to allow gas transfer into and out of the receptacle through the permeable layer.
  • the permeable layer may optionally be a nonwoven material.
  • the nonwoven material may be a polyester material.
  • the polyester material may include a first plurality of parallel strands overlapping a second plurality of parallel strands.
  • the first plurality of parallel strands may be transverse to the second plurality of parallel strands.
  • the first plurality of parallel strands may be melted to the second plurality of parallel strands.
  • a plurality of packages may be provided.
  • a first package may include a barrier layer defining a cavity for storing a product.
  • the cavity may include an opening for receiving the product.
  • a permeable layer may be coupled with the barrier layer.
  • a portion of the permeable layer may be configured to cover the opening of the barrier layer cavity.
  • the permeable lay er may include a plurality of strands at a first density.
  • a peelable barrier film may be releasably coupled with the permeable lay er. A portion of the peelable barrier film may be configured to cover the portion of the permeable layer covering the opening of the barrier layer cavity.
  • the peelable barrier film may be configured to be peelable from the permeable layer so as to expose the portion of the permeable layer covering the opening of the barrier layer cavity .
  • a second package may be provided that includes a barrier layer defining a receptacle for storing a product.
  • the receptacle may include an opening for receiving the product.
  • a permeable layer may be coupled with the barrier lay er.
  • a portion of the permeable layer may be configured to cover the opening of the barrier layer receptacle.
  • the permeable layer may include a plurality of strands at a second density.
  • the peelable barrier film may be reieasably coupled with the permeable layer.
  • a portion of the peelable barrier film may be configured to cover the portion of the permeable layer covering the opening of the barrier layer receptacle.
  • the peelable barrier film may be configured to be peelable from the permeable layer so as to expose the portion of the permeable layer covering the opening of the barrier layer receptacle.
  • the first density of strands may be less than the second density of strands in some embodiments.
  • the first package may be rated for a faster delivery of a volatile substance relative to the second package.
  • Figure 1 illustrates an exemplar ⁇ ' product package according to some
  • Figure 2A illustrates an exemplary cross-section of the product package illustrated in Figure 1 ;
  • Figure 2B illustrates an exemplar ⁇ ' cross-section of another product package according to some embodiments of the disclosure
  • Figure 2C illustrates an exemplar ⁇ ' cross-section of yet another product package according to some embodiments of the disclosure
  • Figure 3 illustrates a back side of the exemplary product package illustrated in
  • Figure 4 illustrates the back side of the exemplary product package illustrated in
  • Figure 5 illustrates an exemplar ⁇ ' configuration of the peelable barrier film illustrated in Figure 2A-2C;
  • Figure 6 illustrates another exemplary configuration of the peelable barrier film illustrated in Figure 2A-2C;
  • Figure 7 illustrates an exemplar ⁇ ' configuration of the permeable layer illustrated in Figure 2A-2C;
  • Figure 8 illustrates an exemplary cross-section of the permeable layer illustrated in Figure 7;
  • Figure 9 illustrates an exemplary configuration of the barrier layer illustrated in
  • Figure 1 illustrates an exemplary product package 10 according to some embodiments of the disclosure.
  • the exemplary product package 10 may be configured to store a product 11.
  • Product 11 may be a fragranced stick.
  • the fragranced stick may include a carrier material configured to provide a controlled release of a fragrant substance.
  • the fragrant substance may be a volatile substance.
  • Product package 10 may be configured to limit chemical interactions between components of the product package 10 with the volatile substance of the product 11. Accordingly, product package 10 may be configured to limit adverse chemical reactions between a product (e.g., product 11) and product package 10 and may thereby provide for long term storage of the product.
  • the product package 10 may include a front layer 12 coupled with a back layer
  • the front layer 12 and the back layer 14 may cooperate to define a receptacle 16 for receiving and storing the product 11.
  • the front layer 12 may form an air tight seal around the product 11 with back layer 14.
  • the front layer 12 may be heat sealed or melted together with back layer 4 to provide the air tight seal around the product 11. This may be advantageous when the packaged product (e.g., product 1 1) includes a volatile substance as the volatile substance may interact chemically with many types of packaging adhesives. In some situations, the product 11 may not include a volatile substance. In such cases, the front layer 12 may be adhered (e.g., chemically using adhesives) to the back layer 14 to provide the air tight seal around the product 11.
  • the front layer 12 and the back layer 14 may comprise two or more layers coupled with one another.
  • Figure 2A shows exemplary details of the front layer 12 and the back layer 14.
  • back layer 14 may include a peelable barrier layer 26 coupled with a back side 27 of permeable layer 28.
  • the peelable barrier layer 26 may be configured to be gas impermeable. Exemplary configurations of peelable barrier layer 26 are described in further detail below.
  • the permeable layer 28 may be configured to be gas permeable. As mentioned above, products including volatile substances may chemically interact with adhesives.
  • the peelable barrier layer 26 may be removably heat sealed or melted with the back side 27 of permeable layer 28 along at least a portion of the peelable barrier layer 26.
  • the peelable barrier layer 26 is coupled with the back side 27 of permeable layer 28 to form the back layer 14 to form the back layer 14, the back layer 14 is gas impermeable.
  • adhesives may be used to couple the peelable barrier layer 26 with the back side 27 of permeable layer 28.
  • Front layer 12 may be a barrier layer 30.
  • Barrier layer 30 may also include multiple component layers that provide a prolonged gas impermeability as will be described in further detail below.
  • Barrier layer 30, permeable layer 28, and peelable barrier layer 26 form the receptacle 16 for receiving and storing the product 1 1.
  • barrier layer 30 and permeable layer 28 are heat sealed together and are not configured to be peelable from one another by a consumer. Peelable barrier layer 26 and barrier layer 30 may form a gas impermeable enclosure to prevent gas exchange between the receptacle 16 and an outside atmosphere. This may be advantageous with a product 11 that includes a volatile substance to limit the ability of the volatile substance from prematurely escaping from the package 10 and depleting the product 1 prior to consumer use.
  • the peelable barrier layer 26 may be configured to be peeled from the permeable layer 28.
  • the peelable barrier layer 26 When the peelable barrier layer 26 is peeled away from the permeable layer 28, the back layer 14 of product package 10 becomes gas permeable. Accordingly, a consumer may elect when to allow the product 11 to diffuse the volatile substance (e.g., a fragrance) into the surrounding air by peeling away the peelable barrier layer 26.
  • the volatile substance e.g., a fragrance
  • Figure 2A illustrates back layer 14 as generally planar and front layer 12 as curved, forming a pocket or otherwise forming a majority of the receptacle 16, it should be understood that other configurations are possible where front layer 12 and back layer 14 are each curved, forming the pocket, and equally form receptacle 16.
  • front layer 12 may be generally planar and back layer 14 may be curved, forming the pocket, or otherwise forming a majority of the receptacle 16, as illustrated in Figure 2B to provide package 0b.
  • a larger area of permeable layer 28 may be exposed compared to the area of permeable layer 28 exposed when peelable barrier layer 26 is peeled from package 10 shown in Figure 2 A. This may allow for increased gas exchange between the interior of package 10b shown in Figure 2B and the surrounding atmosphere relative to package 10 shown in Figure 2A.
  • back layer 14 may be configured to form an apex 13 of receptacle 16, as illustrated in Figure 2C to provide package 1 Oc.
  • the increased height or distance of back layer 14 from front layer 12 at the apex 13 of back layer 14 may increase airflow through receptacle 16 when the peelable barrier layer 30 is peeled from package 10c.
  • a hanging mechanism may also be provided at the apex 13 of the back layer 14.
  • package 10c may be configured to house a plurality of products 11.
  • the package 10c may also house a composition configured to undergo an exothermic chemical reaction when exposed to the outside atmosphere.
  • the composition configured to undergo an exothermic chemical reaction when exposed to the outside air may be a mixture of one or more of iron, water, cellulose, vermiculite, activated carbon and salt.
  • iron in the warmer When the iron in the warmer is exposed to oxygen in the air, it oxidizes. In the process of doing so, heat is created.
  • the salt may act as a catalyst and the carbon may help disperse the heat.
  • the vermiculite may act as an insulator, keeping the heat from dissipating too rapidly, while the polypropylene may help the air to mix with the ingredients while holding in moisture.
  • the chemical reaction may occurs slowly enough to allow the source to last for hours (1-4 hours).
  • product 1 1 comprises a volatile composition reservoir (e.g., a fragrance carrier or the like)
  • the exothermic reaction of the composition may facilitate or otherwise increase a rate of volatile composition (e.g., fragrance) release from the reservoir.
  • a volatile composition reservoir e.g., a fragrance carrier or the like
  • Modulated Release of Volatile Compositions with Application of Low Energy describes various sources of low energy (e.g., electric heater, solar, chemical, etc.) that may be used for modulating the release of a volatile composition from an associated reservoir. Accordingly, embodiments of the present disclosure may also include product packages used in combination with the sources of low energy described in U.S. provisional patent application 62/279,374.
  • the front layer 12 may further comprise a peelable barrier layer 15 and a layer 17.
  • the layer 17 may include the composition that is configured to undergo an exothermic chemical reaction when exposed to air.
  • Layer 7 may be disposed between peelable barrier layer 5 and the barrier layer 30.
  • the peelable barrier layer 15 may be peeled away to expose the layer 17 to air.
  • layer 17 comprises the composition, this action initiates the exothermic chemical reaction.
  • heat generated by the reaction may be conducted through barrier layer 30 and may heat product 1 1. Heating of product 1 1 may increase a rate of volatile composition release from product 11 in certain embodiments.
  • package 10c is described as being configured to enclose a plurality of products 1 1 and/or a composition configured to undergo an exothermic chemical reaction when exposed to air, it should be understood that any package embodiments described herein may also enclose a plurality of products and/or a composition configured to undergo an exothermic chemical reaction when exposed to air.
  • layer 17 may additionally or alternatively comprise an adhesive.
  • the peelable barrier layer 1 5 may be peeled to expose the adhesive material and the package 10c may then be adhered to a surface (e.g., wail or the like) via the exposed layer of adhesive.
  • a surface e.g., wail or the like
  • front layer 12 including peelable barrier layer 15 and layer 17 comprising an adhesive is described primarily with respect to package 0c, it should be understood that any package embodiments described herein may also benefit from such a configuration of front layer 12 (e.g., package 10, package 10b, etc).
  • the product package 10 may include a perforation or cut 20 that extends through the front layer 12 and/or the back layer 14 from the front side 22 of product package 10 to the back side 24 of product package 10.
  • the perforation or cut 20 may have a U-shape or C-shape.
  • the perforation or cut 20 may facilitate hanging the product package 10 by allowing a user to feed a hook, for example, through the perforation or cut 20 to hang the product package 10 using the hook.
  • Alternative embodiments of product package 10 may include a through-hole where a portion of the front layer 12 and the back layer 1 are cut out.
  • Figure 4 illustrates the back side 24 of the exemplary product package 10 illustrated in Figure 1 with the exemplar ⁇ ' impermeable layer 26 removed. Once the peeiable barrier layer 26 is removed, only the permeable layer 28 and the barrier layer 30 enclose the product 11. Gas exchange between the interior of the package 10 and the surrounding atmosphere may then occur.
  • FIG. 5 illustrates an exemplary configuration 36 of the peeiable barrier film 26 illustrated in Figure 2A-2C.
  • the exemplary configuration 36 includes an ethylene vinyl alcohol (EVOH) layer 38.
  • the EVOH layer 38 may provide the gas impermeable barrier for peeiable barrier film 26.
  • the EVOH layer 38 may be coupled with a first sealant layer 40 on a first side of the EVOH layer 38 and a second sealant layer 42 on a second side of the EVOH layer 38.
  • the first sealant layer 40 may be configured to couple with the permeable layer 28.
  • the second sealant layer 42 may be configured to couple an outer portion 44 of barrier film 26 which will be described in further detail below.
  • the first and/or second sealant layers 40, 42 may be a low density polyethylene layer (LDPE) in some embodiments.
  • first and/or second sealant layers 40, 42 may be a polypropylene (PP) layer.
  • the first and/or second sealant layers 40, 42 may be a LLDPE.
  • a first tie layer 46 may be provided between the EVOH layer 38 and the first LDPE layer 40 to facilitate coupling between the EVOH layer 38 and the first LDPE layer 40.
  • a second tie layer 48 may be provided between the EVOH layer 38 and the second LDPE layer 42 to facilitate coupling between the EVOH layer 38 and the second LDPE layer 42.
  • the tie layers 46, 48 and/or the sealant layers 40, 42 sandwiching the EVOH layer 38 may protect the EVOH layer 38 from exposure to moisture. Moisture contact with the EVOH layer 38 may reduce the ability of the EVOH layer 38 to prevent gas exchange across the EVOH layer 38.
  • the outer portion 44 may include a foil layer 50.
  • An ethyl acetoacetate (EAA) layer 52 may be sandwiched between the foil layer 50 and the second sealant layer 42.
  • the EAA layer 52 may provide bonding to the foil layer 50.
  • an EAA layer 52 may be sensitive to our volatile substances such as fragrances and may become de- bonded from the foil 50 after prolonged exposure to the volatile substance.
  • the EVOH laminate may protect the EAA layer 52 from undesired chemical reaction with the volatile substances.
  • the outer portion 44 may further include a paper layer 54.
  • the paper layer 54 may be a white bleached craft paper, unbleached craft paper, etc.
  • the foil 50 and/ or the paper 54 may be a cellophane, PET, LDPE, PE, or any other film material.
  • a sealant layer 56 may be disposed between the paper layer 54 and the foil layer 50 to couple the paper layer 54 with the foil layer 50.
  • the sealant layer 56 may be an LDPE layer or PP layer.
  • LLDPE, EAA or adhesives may be used as an alternative to a LDPE or PP layer for sealant layer 56.
  • a paper layer 54 and foil layer 50 may be used in "pop through” packaging embodiments.
  • the user has the option of "popping" the product through both the permeable layer and EVOH/f oil/paper layer and removing it from the package entirely or may elect to use the product in the packaging with the permeable layer acting as a barrier against direct contact between the product and a supporting surface while still allowing for gas permeability.
  • the configuration 36 of peelable barrier layer 26 may provide a gas impermeable layer (EVOH layer 38) to prevent or otherwise limit volatile substances from escaping from the receptacle 16. Additionally, the gas impermeable layer may also prevent or otherwise limit interactions between the volatile substances and layers of the peelable barrier layer 26 that are on an opposite side of the gas impermeable layer (e.g., such as the EAA layer 52). As discussed above, moisture may reduce the ability of an EVOH layer 38 to prevent or limit gas permeation through the layer. Accordingly, configuration 36 includes moisture barriers (e.g., tie layers 46, 48) to protect the EVOH layer 38 and to prolong the functionality of the EVOH layer 38.
  • moisture barriers e.g., tie layers 46, 48
  • sealant layer 40 to couple with the permeable layer 28 may be desirable when the product 11 includes a volatile substance. Many volatile substances interact with adhesives which could lead to package discoloration, breaches in the air tight seal, and/or the emission of off-odors. By heat sealing the sealant layer 40 with the permeable layer 28, the two layers may- melt together to form the seal. Additionally, the sealant layer 40 may also be configured to be peeiable from the permeable layer 28 as discussed above.
  • the foil layer may also provide a gas impermeable layer.
  • the gas impermeable layer may be a PVDC. While PVDC may discolor with prolonged contact with a fragrance, it may nevertheless be used in such embodiments or may be used in embodiments were volatile substances are not being packaged.
  • the EVOH may help prevent the EAA from debonding from the foil layer.
  • Sealant layer 40 can be made peel able with the use of a peeiable LDPE.
  • Figure 6 illustrates another exemplary configuration 58 of the peeiable barrier film 26 illustrated in Figure 2A-2C.
  • the exemplary configuration 58 is similar to that of configuration 36, except that the outer portion 44 may be replaced with a polyester layer or cellophane layer 60.
  • Other potential alternatives could be any dyed, textured, colored, or standard lamination film.
  • Configuration 58 may offer many of the benefits described above.
  • outer portion 44 may be configured with a poly ester layer or cellophane layer 60 which may provide additional strength to the outer portion 44. The added strength may reduce the chances of tearing the peeiable barrier layer 26 when peeling it from the permeable layer 28.
  • FIG 7 illustrates an exemplary configuration of the permeable layer 28 illustrated in Figure 2A-2C.
  • the permeable layer 28 may a nonwoven material.
  • the nonwoven material may be a nonwoven polyester.
  • the nonwoven material may include a first plurality of parallel strands 61 at a first level and a second plurality of parallel strands 62 at a second level that extend in a direction transverse to the first plurality of parallel strands 61 and overlap with the first plurality of parallel strands 61.
  • the first plurality of parallel strands 61 are perpendicular relative to the second plurality of parallel strands 62.
  • Figure 8 illustrates an exemplary cross-section 63 of the permeable layer 28 illustrated in Figure 7.
  • the first and/or second plurality of parallel strands 61 , 62 may have strands with diameters of about 10 ixm.
  • Nonwovens can come is a variety of thickness/density/and laydown styles. Different nonwovens may be chosen for the properties needed for the specific application. Some may want as little impedance to release as possible, thereby resulting in a quicker or more rapid release. Some embodiments on the other hand may want a thicker material to provide a slower release of the substance. Accordingly, in some embodiments, a plurality of packages 10 may be provided where the density of the non- woven material is different.
  • a first package 10 may include a permeable layer having a first density of strands and a second package 10 may include a permeable layer having a second density of strands that is less than the first density of strands.
  • the second package 10 may be rated for a quicker or larger release of the volatile substance whereas the first package 10 may be rated for a slower prolonged release or smaller release relative to the second package 10.
  • permeable layer 28 may allow gas exchange between the interior of the package 10 and the open atmosphere, permeable layer 28 may still act as a physical partition that prevents the product from physically contacting an adjacent surface.
  • the volatile substances may interact with the surface or objects and may tarnish, discolor, or otherwise ruin the surfaces or objects.
  • permeable layer 28 is illustrated and described as a nonwoven material, it should be understood that other permeable layers 28 may be used depending on the product stored.
  • the permeable layer may be a perforated (e.g., microperf) material (e.g., plastic, paper, etc.).
  • various woven or mesh materials may be used, such as cotton fabric, 65%/35% poly/cotton blend fabric, polyester (mesh and fabric), nylon (mesh and fabric), polyester nonwoven (higher density).
  • fabrics may be too tight and may limit adequate fragrance release, but such materials may be beneficial in other applications (e.g., oxygen activated products, hydrogel products, drug delivery products, moisturizing products, or the like). Accordingly, the tightness of the material and/or permeability may be selected based upon the particular application of the package 10.
  • Figure 9 illustrates an exemplar ⁇ ' configuration 64 of the barrier layer 30 illustrated in Figure 2A-2C.
  • the exemplary configuration 64 may be used to provide a gas impermeable barrier 30.
  • the configuration 64 includes an EVOH layer 66.
  • the EVOH layer 66 may provide the gas impermeable barrier of barrier 30.
  • a first sealant layer 68 may be coupled with the EVOH layer 66.
  • the first sealant layer 68 may be configured to couple with the permeable layer 28.
  • a first tie layer 70 may be disposed between the first sealant layer 68 and the EVOH layer 66 to couple the first sealant layer 68 with the EVOH layer 66.
  • the first sealant layer 68 may be an LDPE layer or a PP layer.
  • a second sealant layer 72 may be coupled with the EVOH layer 66 on a side opposite the first tie layer 70.
  • the second sealant layer 72 may be configured to couple with a surface layer 74.
  • the surface layer 74 may be a PET layer.
  • a second tie layer 76 may be disposed between the second sealant layer 72 and the EVOH layer 66 to couple the second sealant layer 72 with the EVOH layer 66.
  • the second sealant layer 72 may be an LDPE layer or a PP layer.
  • the first tie layer 70 may be coupled with a first side of EVOH layer 66 and the second tie layer 76 may be coupled with a second side of EVOH layer 66.
  • the tie layers 70, 76 may protect the EVOH layer 66 from moisture contact which may dimmish the abili ty of the EVOH layer 66 to prevent gas permeation through the barrier 30.
  • the barrier layer 30, the permeable layer 28, and the peelabie barrier layer 26 may be heat sealed together to form the package 10 and to enclose the product 11.
  • the components of the barrier layer 30 and the peelabie barrier layer 26 may prevent gas permeation through the package 10.
  • the user may readily peel the peelabie barrier layer 26 from the permeable layer 28 to expose the underlying permeable layer 28. Thereafter, the product 11 may- release the volatile substances into the surrounding area through the permeable layer 28.
  • the permeable layer 28, peelabie barrier layer 26, and the barrier layer 30 are generally described in detail for packaging a fragranced carrier, it should be understood that other embodiments may utilize the permeable layer 28, peelabie barrier layer 26, and the barrier layer 30 to package other products.
  • the product 11 does not include a volatile substance
  • other configurations of the permeable layer 28, peelable barrier layer 26, and the barrier layer 30 are available.
  • the peelable barrier layer 26 may be peeled away from the permeable layer 28 to uncover an adhesive layer.
  • the adhesive layer may allow a consumer or user to apply the package directly onto a surface, such as a patient's skin or the like. Additionally, packaged products may be oxygen activated.
  • the peelable barrier layer 26 may be configured to prevent oxygen entry into the package.
  • the package may be sealed with an inert gas atmosphere (e.g., Nitrogen) or under vacuum.
  • the packaging may be used with a pest repellent product or the like or for use in OTC drug release (e.g., menthol or the like).
  • a method of manufacturing may be provided.
  • the method may include forming a cavity with a bottom barrier film, according to embodiments described herein.
  • the product may be placed in the cavity and the gas permeable layer (e.g., nonwoven) may be placed on top to cover the opening of the cavity.
  • the gas permeable layer may then be heat sealed to the barrier film, around the product.
  • the third layer may then be heat sealed to the gas permeable layer also around the product.
  • one end of the third layer may not be sealed as far as the first two layers so as to provide an area to grab and peel.
  • the unit may then be diecut to the final shape.
  • a hang hole is also diecut.
  • the product may be a fragrance stick or the like.

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Abstract

La présente invention concerne, en général, la production d'emballages et des matériaux utilisés pour l'emballages de produits. Les matériaux et les emballages de l'invention permettent de former un réceptacle destiné à contenir un produit. Selon certains modes de réalisation, les matériaux et les emballages peuvent comprendre une couche imperméable aux gaz conçue pour isoler hermétiquement le réceptacle afin d'empêcher le produit qui y est contenu d'interagir avec l'air ambiant. La couche imperméable aux gaz du matériau et de l'emballage peut être conçue de façon à pouvoir être détachée par un utilisateur afin d'exposer une couche perméable aux gaz. La couche perméable aux gaz peut permettre un échange gazeux entre le produit et l'environnement. Certains modes de réalisation peuvent être particulièrement utiles pour sceller un produit comprenant des substances volatiles, tels que, entre autres, des supports de parfums et/ou des désodorisants.
PCT/US2017/013597 2016-01-15 2017-01-14 Matériaux et configurations d'emballages destinés à être utilisés dans un emballage fermé par des membranes perméables WO2017124049A1 (fr)

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US62/279,323 2016-01-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109969604A (zh) * 2019-04-03 2019-07-05 浙江金卓首饰有限公司 一种贵金属的封装工艺
RU208870U1 (ru) * 2021-09-20 2022-01-19 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Источник микропотока мешкового типа

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WO1984002654A1 (fr) * 1983-01-14 1984-07-19 Firmenich & Cie Dispositif d'assainissement d'air ambiant et d'enceintes fermees
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WO2000009174A1 (fr) * 1998-08-17 2000-02-24 American National Can Company Modele ameliore de membrane permeable a des produits aromatiques
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US4145001A (en) * 1977-09-15 1979-03-20 American Can Company Packaging for controlled release of volatile substances
WO1984002654A1 (fr) * 1983-01-14 1984-07-19 Firmenich & Cie Dispositif d'assainissement d'air ambiant et d'enceintes fermees
US5979653A (en) * 1997-12-24 1999-11-09 Cryovac, Inc. Peel mechanism for peelable barrier film for vacuum skin packages and the like
WO2000009174A1 (fr) * 1998-08-17 2000-02-24 American National Can Company Modele ameliore de membrane permeable a des produits aromatiques
US20100270392A1 (en) * 2009-04-27 2010-10-28 Trent John S Multi-Layer Film Coverings For Volatizing Dispensers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109969604A (zh) * 2019-04-03 2019-07-05 浙江金卓首饰有限公司 一种贵金属的封装工艺
RU208870U1 (ru) * 2021-09-20 2022-01-19 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Источник микропотока мешкового типа

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