WO2017100557A1 - Récipient comportant des éléments d'absorption - Google Patents

Récipient comportant des éléments d'absorption Download PDF

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Publication number
WO2017100557A1
WO2017100557A1 PCT/US2016/065806 US2016065806W WO2017100557A1 WO 2017100557 A1 WO2017100557 A1 WO 2017100557A1 US 2016065806 W US2016065806 W US 2016065806W WO 2017100557 A1 WO2017100557 A1 WO 2017100557A1
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WO
WIPO (PCT)
Prior art keywords
container
blank
voids
sidewall
layer
Prior art date
Application number
PCT/US2016/065806
Other languages
English (en)
Inventor
Joseph C. Walsh
Michael L. SCHLAUCH
Raymond S. Kastanek
Original Assignee
Graphic Packaging International, 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 Graphic Packaging International, Inc. filed Critical Graphic Packaging International, Inc.
Publication of WO2017100557A1 publication Critical patent/WO2017100557A1/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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/563—Laminated linings; Coatings
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/566—Linings made of relatively rigid sheet material, e.g. carton
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package

Definitions

  • the present disclosure relates to blanks, containers, trays, constructs, and various features to facilitate forming a container from a blank. More specifically, the disclosure is generally directed to a tray having features on an external surface with features for allowing moisture to reach an absorbent internal layer.
  • Prior art food trays such as are disclosed in U.S. Pat. No. 8,741,443 (the '443 patent) are known to include two layers of paperboard, a waterproof coating (e.g., polyethylene) on the inside surface of the tray for contact with the food product and a moisture proof coating (e.g., acrylic) on the bottom surface of the tray.
  • a waterproof coating e.g., polyethylene
  • a moisture proof coating e.g., acrylic
  • the tray or container of the present disclosure improves on the prior art food trays such as are disclosed in the '443 patent by including absorption features to prevent the moisture absorption in the flange area of the tray and the resulting staining and structural weakening of the tray.
  • one aspect of the disclosure is generally directed to a container for holding a food product.
  • the container can comprise a sidewall at least partially defining a cavity of the container, a flange extending from the sidewall, and a material comprising at least a base layer and a barrier layer on a face of the base layer.
  • the flange and the sidewall each can comprise a portion of the material.
  • the barrier layer can at least partially form an interior surface of the container, and the interior surface can at least partially extend along the cavity of the container.
  • An absorption feature can extend in at least the barrier layer for allowing liquids to pass through the barrier layer and into the base layer.
  • the disclosure is generally directed to a blank for forming a container for holding an article.
  • the blank can comprise a sidewall portion for forming a sidewall at least partially defining a cavity of the container formed from the blank, a flange portion extending along the sidewall portion for forming a flange extending from the sidewall in the container formed from the blank, and a material comprising at least a base layer and a barrier layer on a face of the base layer.
  • the flange portion and the sidewall portion each can comprise a portion of the material.
  • the barrier layer can at least partially form an interior surface of the blank, and the interior surface can be for at least partially extending along the cavity when the container is formed from the blank.
  • An absorption feature can extend in at least the barrier layer for allowing liquids to pass through the barrier layer and into the base layer.
  • the disclosure is generally directed to a method of forming a container from a blank.
  • the method can comprise obtaining a blank comprising a material having at least a base layer, a barrier layer on a face of the base layer and at least partially forming an interior surface of the blank, and an absorption feature extending in at least the barrier layer for allowing liquids to pass through the barrier layer and into the base layer.
  • the blank can comprise a sidewall portion and a flange portion each comprising a portion of the material.
  • the method further can comprise forming a sidewall comprising at least the side portion of the blank.
  • the sidewall can at least partially defining a cavity of the container with the interior surface at least partially extending along the cavity of the container.
  • the method can comprise forming a flange comprising at least the flange portion of the blank.
  • the flange can extend from the sidewall.
  • Fig. 1 is an interior plan view of a blank used to form a tray according to a first exemplary embodiment of the disclosure.
  • Fig. 2 is a partial cross-sectional view of a material for the blank of Fig. 1 according to the first exemplary embodiment of the disclosure.
  • Fig. 2A is a partial cross-sectional view of an alternative material for the blank of Fig.
  • Fig. 3 is a perspective view of the tray formed from the blank of Fig. 1 according to the first exemplary embodiment of the disclosure.
  • Fig. 4 is a perspective view showing the tray of Fig. 3 with a cover and containing a food product according to the first exemplary embodiment of the disclosure.
  • Fig. 5 is a perspective view of the tray of Fig. 4 after the food product has been removed according to the first exemplary embodiment of the disclosure.
  • Fig. 6 is an interior plan view of a blank used to form a tray according to second exemplary embodiment of the disclosure.
  • Fig. 7 is an interior plan view of a blank used to form a tray according to a third exemplary embodiment of the disclosure.
  • the present disclosure relates generally to various aspects of containers, constructs, trays, materials, packages, elements, and articles, and methods of making such containers, constructs, trays, materials, packages, elements, and articles. Although several different aspects, implementations, and embodiments are disclosed, numerous interrelationships between, combinations thereof, and modifications of the various aspects, implementations, and embodiments are contemplated hereby.
  • the present disclosure relates to a container or tray for holding food items or various other articles.
  • the container or tray can be used to hold other non-food containing articles or may be used for heating or cooking.
  • FIG. 1 illustrates a blank 3 that is used to form a container 5 (Figs. 3-5) having a flange 114 according to an exemplary embodiment of the disclosure.
  • An interior surface 7 of the blank 3 is shown in Fig. 1.
  • the blank 3 is generally rectangular and has generally straight side edges 4a, 4b and straight end edges 6a, 6b with rounded corners 23, 25, 27, 29 extending between respective side edges and end edges.
  • the blank 3 is for being press formed into the container 5 that, in the illustrated embodiment, is a generally rectangular tray. It is understood that the blank 3 can be press-formed into the container 5 by a forming tool (not shown), which can be similar to and have similar features and/or components as conventional forming tools such as are disclosed in U.S.
  • Patent No. 8,534,460 the entire contents of which are incorporated herein by reference for all purposes.
  • the forming tool can have similar features and components such as the forming tool disclosed in U.S. Pat. No. 8,801,995, the entire contents of which are incorporated by reference for all purposes, or any other suitable forming tool assembly.
  • the blank 3 and the container 5 could be alternatively shaped (e.g., circular, oval, rectangular, annular, irregular, etc.) and/or any suitable forming tool could be used to form the container 5 from the blank 3without departing from the scope of this disclosure.
  • the blank 3 has a longitudinal direction LI and a lateral direction
  • the blank 3 has a central portion 11 (i.e., bottom panel portion or bottom portion), a sidewall portion 12 extending around the central portion, and a flange portion 14 extending along the sidewall portion 12.
  • the central portion 11, the sidewall portion 12, and the flange portion 14 can be for forming a respective bottom panel, sidewall, and flange in the container 5 (Fig. 3).
  • the sidewall portion 12 can include two opposed side portions 13, 15 (i.e., side panel portions), and two opposed end portions 17, 19 (i.e., end panel portions).
  • corner portions 37, 39, 41, 43 extend between (e.g., connect) adjacent respective side portions 13, 15 and end portions 17, 19.
  • the flange portion 14 can include a marginal edge portion 30 (e.g., the outer edge 30) of the blank that includes the side edges 4a, 4b, the end edges 6a, 6b, and the corner edges 23, 25, 27, 29 (e.g., the outer edge 30 can extend along the perimeter of the blank 3).
  • the flange portion 14 extends across the side portions 13, 15, the end portions 17, 19, and corner portions 37, 39, 41, 43.
  • each of the corner portions 37, 39, 41, 43 can comprise a plurality of score lines 55 for forming pleats 56 in the container 5 (Fig. 3).
  • the score lines 55 can extend from the outer edge 30 of the blank 3 toward the central portion 11 of the blank, and some of the score lines can be longer than others.
  • the score lines 55 could be otherwise shaped, arranged, configured, and/or positioned without departing from the disclosure.
  • the score lines 55 could be spaced apart from the edges of the blank and/or could extend into the central portion 11.
  • each corner portion could include any suitable number of score lines.
  • the blank 3 could be generally circular, with score lines disposed around the entire circumference of the blank without departing from the disclosure.
  • the corner portions 37, 39, 41, 43 form a transition area between respective side portions 13, 15 and end portions 17, 19. Accordingly, the side portions 29, 31, the end portions 33, 35, and the corner portions 37, 39, 41, 43 can form the sidewall portion 12 that extends continuously around the central portion 11 in one embodiment. Further, in one exemplary embodiment, the flange portion 14, which includes the outer edges 4a, 23, 6a, 27, 4b, 29, 6b, 25, can extend continuously around the perimeter of the blank 3.
  • the score lines 55 can facilitate the forming of corners
  • the press forming of the blank 3 into the container 5 causes portions of the material 8 at the corners along the score lines 55 to overlap and form respective pleats 56 (shown schematically in Fig. 3).
  • the blank 3 can be formed from a material 8 (e.g., a laminate material), as shown in Fig. 2.
  • the material 8 can be similar to the material disclosed in the '443 patent in that the material 8 can comprise two layers of paperboard 76, 78 (broadly "base layer") attached by a layer of adhesive 84, a waterproof coating 80 on the face of the upper layer of paperboard 76, and a moisture proof coating 82 on the face of the lower layer of paperboard 78.
  • the waterproof coating 80 can form the interior surface 7 of the blank 3 and the container 5 and can comprise various suitable waterproof coatings such as polyethylene extrusion coating or other suitable waterproof coatings.
  • the waterproof coating 80 can be a polyethylene extrusion coating having 2.9% to 3.3% of the overall basis weight of the tray for protection against water and/or grease absorption.
  • waterproof is used in the present disclosure to refer to coating materials that prevent passage of all or substantially all water and/or grease and/or other fluids (e.g., from food products or other products) from passing through the coating material.
  • the moisture proof coating 82 provides a moisture proof barrier on the bottom of the food tray and can be any suitable material such as water based acrylic aqueous coating or other suitable moisture proof coatings.
  • the moisture proof coating 82 can be a water-based acrylic aqueous coating having 1.4% to 1.5% of the overall basis weight of the tray.
  • moisture proof is used in the present disclosure to refer to coating materials that are resistant to moisture but not waterproof.
  • the moisture proof coating 82 can generally prevent absorption of water or other liquids through the coating into the blank 3 or container 5 (e.g., if the container is set on a wet surface), yet can allow excess water to be expelled from the paperboard layers 76, 78 through the coating (e.g., during formation of the container from the blank).
  • each of the waterproof coating 80 and the moisture proof coating is identical to each of the waterproof coating 80 and the moisture proof coating
  • the 82 can be referred to as a barrier layer, in general.
  • the material 8 could be otherwise shaped, arranged, configured, and/or positioned without departing from the disclosure.
  • the material 8 could include a single layer of paperboard or any suitable number of layers of paperboard, and/or one or more of the layers 76, 78 could be materials other than paperboard without departing from the disclosure.
  • the waterproof coating 80 could be any suitable coating to prevent water or moisture from passing directly from the interior surface 7 of the tray into the paperboard layers 76, 78.
  • the moisture proof coating 82 could be any suitable coating to that resists moisture absorption into the layer of material 8.
  • the moisture resistant coating 82 could be omitted or could be inherent in the properties of the bottom layer 78. As shown in Fig.
  • the blank 3 can include an absorption feature 90.
  • the absorption feature 90 includes a plurality of perforations 35 (broadly “moisture absorption features”), which can be in the form of cuts, slits, apertures, openings, etc. in the waterproof coating 80 on the interior surface 7 of the tray 5 to allow moisture on the interior surface 7 of the tray 5 to pass thropgh the waterproof coating 80 via the perforations and be absorbed into the paperboard layer 76.
  • moisture absorption features can be in the form of cuts, slits, apertures, openings, etc.
  • the perforations 35 can be an absence of the coating material of the waterproof layer 80 (e.g., a void in the waterproof layer, which can be formed by forming partial cuts or piercings and/or by otherwise breaching the waterproof layer) to provide a passageway from the interior surface 7 to the paperboard layer 76 for the transmission of liquids (e.g., water, grease, and/or other fluids) from the interior surface to the paperboard layer.
  • the perforations 35 are in the form of elongate slits (Fig. 1).
  • the perforations 35 can be formed by conventional cutting tools, or the perforations could be formed by applying the waterproof coating 80 as a patterned layer during the lamination of the layer 80.
  • the patterned layer could include selective areas that are free from waterproof coating 80 to allow moisture to be absorbed by the paperboard layers 76, 78.
  • the perforations 35 could be otherwise shaped, arranged, configured, and/or positioned without departing from the disclosure. For example, as shown in Fig. 2A, perforations 35' could extend into the material 8 at different depths (e.g., into one or both of the paperboard layers 76, 78). Perforations 35' that extend through the paperboard layer 76 and adhesive layer 84 could allow moisture to more readily be absorbed by the bottom paperboard layer 78.
  • the perforations 35 could be alternatively shaped (e.g., curved cuts, circular or polygonal apertures or punctures, and/or other suitable shapes) or could be otherwise positioned (e.g., on the bottom panel 11) without departing from the disclosure. Further, the perforations 35 could be formed in the waterproof coating 80 of the container 5 after press forming the blank into the carton 5. [0029] In one embodiment, the perforations 35 can be arranged in linear arrangements and/or in arrays. For example, as shown in Fig.
  • the perforations 35 can be aligned in a line of perforations 92, which can be repeated in the blank 3 to form an array of perforations 94.
  • the blank 3 can include a plurality of arrays of perforations 94, each extending in at least the sidewall portion 12.
  • the blank 3 can include an array of perforations 94 extending across each of the side panel portions 13, 15, wherein the lines of perforations 92 and the perforations 35 can be generally parallel to the side edges 4a, 4b.
  • each of the end panel portions 17, 19 can include two arrays of perforations 94, wherein the lines of perforations 92 and the perforations 35 are generally perpendicular to the end edges 6a, 6b.
  • the absorption feature also can include perforations 96 (e.g., corner perforations) that are generally similar or identical to the perforations 35.
  • the corner perforations 96 extend in the corners 37, 39, 41, 43 of the blank 3 and can be collinear with the respective score lines 55. Accordingly, when the container 5 is formed, the corner perforations 96 can be collinear with the pleats 56 (Fig. 3). In an alternative embodiment, the corner perforations 96 could be non-collinear with the score lines 55 and/or pleats 56.
  • the perforations 35, 96 are all spaced apart from the outer edge 30 of the blank 3 by the flange portion 14 (e.g., the flange portion 14 is generally free of the perforations 35, 96), which can help prevent moisture from being absorbed into the paperboard layers 76, 78 at the flange (e.g., via the outer edge 30). Accordingly, the absorption feature 90 can help prevent the flange from being weakened or stained by moisture.
  • the absorption feature 90 including the perforations 35, 96, the lines of perforations 92, and/or the arrays of perforations 94, could be otherwise shaped, arranged, configured, and/or positioned without departing from the disclosure.
  • the absorption feature 90 could include any suitable number of arrays of perforations 94 and/or lines of perforations 92.
  • the perforations 35 could have different orientations in the lines and/or arrays and/or the lines of perforations 92 can have different orientations in the blank 3.
  • the perforations 35 could have different regular or irregular sizes and/or spacings.
  • the perforations 35 could extend in additional portions of the blank (e.g., the flange portion 14 and/or the central portion 11).
  • FIGs. 3-5 show an embodiment of the disclosure comprising the container or tray 5 formed from the blank 3.
  • the container 5 comprises a bottom wall or panel 111, side panels 113, 115, end panels 117, 119, and corners 137, 139, 141, 143 connecting respective adjacent side panels 113, 115 and end panels 117, 119.
  • the side panels 113, 115, the end panels 117, 119, and the comers 137, 139, 141, 143 generally form a sidewall 112 that extends around the container 5 along the perimeter of the bottom wall 111.
  • the flange 114 extends outwardly from respective side panels 113, 115, the end panels 117, 119, and the comers 137, 139, 141, 143 (e.g., the flange 114 extends outwardly from the sidewall 112 of the container 5) and extends continuously around the perimeter of the container 5.
  • the bottom wall 111 is formed from the central portion 11 of the blank 3.
  • the side panels 113, 115 can be formed from the respective side portions 13, 15 of the blank 3
  • the end panels 117, 119 can be formed from the respective end portions 17, 19 of the blank
  • the comers 137, 139, 141, 143 can be formed from the respective comer portions 37, 39, 41, 43 of the blank (e.g., the sidewall 112 of the container 5 can be formed from the sidewall 12 portion of the blank 3) in the illustrated embodiment.
  • the container 5 has a cavity or interior space 60 that is defined by the bottom wall 111 and the sidewall 112 extending upwardly from the bottom wall 111.
  • the sidewall 112 extends continuously around the cavity 60, and the interior surface 7 of the container 5 extends along the cavity 60 in the interior of the container 5.
  • the container 5 is for holding and/or cooking and/or heating a food product F (Fig. 4) that is placed in the interior space 60 of the container.
  • a package 150 can include the container 5, food items F (e.g., uncooked sausage and/or any other suitable food product), and a lid or cover C.
  • the cover C can comprise a packaging film that is a plastic layer used to preserve and/or protect a food item contained in the tray.
  • any plastic film such as polystyrene, polyethylene, polypropylene, polyethylene terephthalate, polyvinylchloride, polyamide, and ethylene vinyl alcohol, or other suitable material, can be used. Any other suitable material can be used for forming the cover C that is sealed against an upper surface (e.g., the inner surface 7) of the flange 114. In one embodiment, the cover C can be sealed against the flange 114 by gluing, heat welding, ultrasonic welding, and/or any other suitable sealing method. In the illustrated embodiment, the cover C is a transparent or translucent film to allow visual inspection of the food product F in the package 150.
  • the package 150 including the container 5, the cover C, and/or the food product F, could be otherwise shaped, arranged, configured, and/or positioned without departing from the disclosure.
  • the food product F could have a different shape and/or orientation than shown by way of example in Fig. 4.
  • the cover C and the waterproof coating 80 can cooperate to retain moisture in the package 150 from leaking out of the package.
  • the food product F can have excess water or grease that can collect in the cavity 60.
  • the food product F could be frozen and water and/or other fluids could collect in the cavity 60 as the food product F is thawed.
  • the package 150 could be positioned on a surface (not shown) so that it is at least partially supported by the flange 114.
  • any liquids (e.g., water, grease, and/or other liquids) in the cavity 60 can move toward the flange 114, and any liquid that reaches the outer edge 30 could be absorbed by the paperboard layers 76, 78, which may be exposed at the edge 30 (e.g., as shown schematically in Fig. 2).
  • Such absorption of liquids into the flange e.g., via the outer edge 30
  • the absorption of the liquids into the paperboard in the flange can cause the flange to become deformed and/or stained, which may be unappealing to a user or potential buyer of the package 150.
  • the absorption feature 90 can help prevent liquids from reaching the flange 114 and/or the outer edge 30.
  • the perforations 35, 96 in the sidewall 112 can allow liquids to pass through the waterproof coating 80 along the cavity 60 and be absorbed by the paperboard layer 76 in the interior of the container 5 before the liquids reach the flange 114.
  • liquid can collect on the side panel 113 when the package 150 is on its side as shown in Fig. 4, and the liquid can be absorbed into the paperboard layer 76 that extends along the side panel 113 via the perforations 35 in the waterproof layer 80 extending along the side panel 113.
  • This absorption of the liquids via the perforations 35, 96 can form stains S (Fig.
  • the stains S can indicate locations of high absorption of moisture into the paperboard layer 76
  • the perforations 35, 96 of the absorption feature 90 can be strategically located on the interior surface 7 of the container 5 to channel moisture that accumulates on interior surface 7 into the base layer or paperboard layer 76.
  • the perforations 35, 96 can be located to absorb and dissipate moisture in specific locations of the container 5 so that the resulting stains S by the moisture being absorbed into the paperboard is hidden from view by the consumer, typically below the food product in the side panels 113, 115, end panels 117, 119, and/or corners 137, 139, 141, 143.
  • the location of the perforations 35, 96 can help keep the moisture from accumulating in the paperboard layers 76, 78 in the flange 114 so that the flange remains dry and provides rigidity and structural strength to the container 5.
  • the containers 5 are displayed in retails shelves in an angled or upright position supported in a display case on one of the side panels 113 and 115, and the perforations 35, 96 allow moisture to be absorbed into the paperboard before it flows over the interior surface of the flange 114 and reaches the edge 30 (Fig. 2) of the flange that can be uncoated with the waterproof coating 80 in one embodiment.
  • the material 8 for the blank 3 can be formed by any suitable process such as disclosed in the '443 patent or any other process.
  • the tray 5 can be formed from the blank 3 by press forming the container 5 by a forming tool or by any suitable process such as disclosed in the '443 patent or any other process.
  • the blank 3 and the container 5 could be alternatively shaped (e.g., circular, oval, rectangular, annular, irregular, etc.) without departing from the scope of this disclosure.
  • Fig. 6 is a plan view of a blank 203 for forming a container (not shown) according to a second embodiment of the disclosure.
  • the second embodiment is generally similar to the first embodiment, except for variations noted and variations that will be apparent to one of ordinary skill in the art. Accordingly, similar or identical features of the embodiments have been given like or similar reference numbers.
  • the blank 203 can include an alternative absorption feature 290 with various arrays of perforations 294 having lines or perforations 292 of various orientations.
  • the lines of perforations 292 can be oblique with respect to the longitudinal direction LI and the lateral direction L2 and to the side edges 4a, 4b and end edges 6a, 6b of the blank 203.
  • the lines of perforations 292 and the perforations 35 can be oriented at approximately a 45 degree angle with respect to the longitudinal and lateral directions.
  • the arrays of perforations 294 extend in the central portion 11 in addition to the sidewall portion 12 in order to provide additional surface area for absorbing liquids into the paperboard layer 76.
  • some or all of the lines of perforations 292 can be nonparallel with the direction(s) that the blank 203 or the container formed from the blank tends to fold in order to help prevent failure of the tray.
  • the tray could tend to fold along the grain direction of the paperboard and/or perpendicular to the grain direction and/or along the longitudinal and lateral directions of the tray.
  • Fig. 7 is a plan view of a blank 403 for forming a container (not shown) according to a third embodiment of the disclosure.
  • the third embodiment is generally similar to the prior embodiments, except for variations noted and variations that will be apparent to one of ordinary skill in the art. Accordingly, similar or identical features of the embodiments have been given like or similar reference numbers. As shown in Fig.
  • the blank 403 can include an alternative absorption feature 490.
  • the absorption feature 490 can include two arrays of perforations 94 in the end portions 17, 19 that are similar or identical to the arrays of perforations 94 in the end portions 17, 19 of the blank 3 in Fig. 1.
  • the absorption feature 490 can include an array of perforations 494a in each of the side portions 13, 15, wherein the lines of perforations 492a are aligned in an oblique direction with respect to the longitudinal direction LI and the lateral direction L2.
  • the absorption feature 490 can include a number (e.g., five or any other suitable number) of arrays of perforations 494b extending the central portion 11 of the blank 403.
  • Each of the arrays of perforations 494b can have lines of perforations 492b extending in the longitudinal direction LI .
  • the absorption feature 490 could be omitted or could be otherwise shaped, arranged, configured, and/or positioned without departing from the disclosure.
  • the blank could include any suitable number of perforations in any suitable regular or irregular arrangement without departing from the disclosure.
  • one or more portions of the blank or other constructs described herein or contemplated hereby may be coated with varnish, clay, or other materials, either alone or in combination.
  • the coating may then be printed over with product advertising or other information or images.
  • the blanks or other constructs also may be selectively coated and/or printed so that less than the entire surface area of the blank or substantially the entire surface area of the blank may be coated and/or printed.
  • the blanks may be constructed of paperboard of a caliper such that it is heavier and more rigid than ordinary paper.
  • the blanks can also be constructed of other materials, such as cardboard, hard paper, or any other material having properties suitable for enabling the carton package to function at least generally as described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cartons (AREA)

Abstract

La présente invention concerne une récipient servant à contenir un produit alimentaire. Le récipient peut comprendre une paroi latérale délimitant au moins partiellement une cavité du récipient, une bride s'étendant à partir la paroi latérale, et un matériau comprenant au moins une couche de base et une couche de barrière sur une face de la couche de base. La bride et la paroi latérale peuvent chacune comprendre une partie du matériau. La couche de barrière peut former au moins partiellement une surface intérieure du récipient, et la surface intérieure peut s'étendre au moins partiellement le long de la cavité du récipient. Un élément d'absorption peut s'étendre au moins dans la couche de barrière pour permettre à des liquides de traverser la couche de barrière et de parvenir dans la couche de base.
PCT/US2016/065806 2015-12-11 2016-12-09 Récipient comportant des éléments d'absorption WO2017100557A1 (fr)

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US62/266,084 2015-12-11

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SE2050511A1 (en) * 2020-05-04 2021-11-05 Stora Enso Oyj Container for liquid containing food products
EP3775372A4 (fr) * 2018-03-27 2021-12-22 Graphic Packaging International, LLC Matériau de conditionnement présentant des caractéristiques d'absorption

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US10508115B2 (en) 2017-08-16 2019-12-17 Bristol-Myers Squibb Company Toll-like receptor 7 (TLR7) agonists having heteroatom-linked aromatic moieties, conjugates thereof, and methods and uses therefor
US10472361B2 (en) 2017-08-16 2019-11-12 Bristol-Myers Squibb Company Toll-like receptor 7 (TLR7) agonists having a benzotriazole moiety, conjugates thereof, and methods and uses therefor
US10494370B2 (en) 2017-08-16 2019-12-03 Bristol-Myers Squibb Company Toll-like receptor 7 (TLR7) agonists having a pyridine or pyrazine moiety, conjugates thereof, and methods and uses therefor
US10457681B2 (en) 2017-08-16 2019-10-29 Bristol_Myers Squibb Company Toll-like receptor 7 (TLR7) agonists having a tricyclic moiety, conjugates thereof, and methods and uses therefor
US20190062031A1 (en) * 2017-08-30 2019-02-28 Bemis Company, Inc. Thermoformed Tray for Food Products
CA3098648C (fr) 2018-05-14 2023-02-28 Graphic Packaging International, Llc Procede et systeme de formation d'emballages
US11554120B2 (en) 2018-08-03 2023-01-17 Bristol-Myers Squibb Company 1H-pyrazolo[4,3-d]pyrimidine compounds as toll-like receptor 7 (TLR7) agonists and methods and uses therefor
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WO2021216643A1 (fr) * 2020-04-21 2021-10-28 Westrock Mwv, Llc Structures cellulosiques, procédés de fabrication de structures cellulosiques et revêtements formés à partir de celles-ci
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WO2021224770A1 (fr) * 2020-05-04 2021-11-11 Stora Enso Oyj Récipient pour produits alimentaires contenant du liquide

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