CONTAINER WITH ABSORPTION FEATURES
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.
This application claims the benefit of U.S. Provisional Patent Application No. 62/266,084, filed Dec. 11, 2015.
INCORPORATION BY REFERENCEThe disclosure of U.S. Provisional Patent Application No. 62/266,084, filed Dec. 11, 2015, is hereby incorporated by reference as if presented herein in its entirety and is incorporated by reference for all purposes.
BACKGROUND OF THE DISCLOSUREThe 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. Such trays have edges at the flange region that are uncoated and allow moisture to be absorbed into the paperboard layers at the edges of the flange. Once moisture is absorbed at the flange area of the tray, the flanges of the tray become stained and visibly unattractive to consumers and are structurally weakened by the high moisture absorption that is concentrated at the flange area. The entire contents of U.S. Pat. No. 8,741,443 are incorporated by reference herein for all purposes.
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.
SUMMARY OF THE DISCLOSUREIn general, 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.
In another aspect, 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.
In another aspect, 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. Also, the method can comprise forming a flange comprising at least the flange portion of the blank. The flange can extend from the sidewall.
Those skilled in the art will appreciate the above stated advantages and other advantages and benefits of various additional embodiments reading the following detailed description of the embodiments with reference to the below-listed drawing figures.
According to common practice, the various features of the drawings discussed below are not necessarily drawn to scale. Dimensions of various features and elements in the drawings may be expanded or reduced to more clearly illustrate the embodiments of the disclosure.
Corresponding parts are designated by corresponding reference numbers throughout the drawings.
DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTSThe 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. In one illustrated embodiment, the present disclosure relates to a container or tray for holding food items or various other articles. However, in other embodiments, the container or tray can be used to hold other non-food containing articles or may be used for heating or cooking.
As shown in
In the illustrated embodiment, 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 (
In the illustrated embodiment, the score lines 55 can facilitate the forming of corners 137, 139, 141, 143 from the respective corner portions 37, 39, 41, 43 during the press forming of the blank 3 into the tray 5. In one embodiment, 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
In the illustrated embodiment, the blank 3 can be formed from a material 8 (e.g., a laminate material), as shown in
In the illustrated embodiment, 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. In one exemplary embodiment, 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. In general, the term “moisture proof” is used in the present disclosure to refer to coating materials that are resistant to moisture but not waterproof. For example, in one embodiment, 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).
In one embodiment, each of the waterproof coating 80 and the moisture proof coating 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. For example, 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. Further, 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. Also, the moisture proof coating 82 could be any suitable coating to that resists moisture absorption into the layer of material 8. Also, the moisture resistant coating 82 could be omitted or could be inherent in the properties of the bottom layer 78.
As shown in
In one embodiment, the perforations 35 can be arranged in linear arrangements and/or in arrays. For example, as shown in
In the illustrated embodiment, 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. For example, the absorption feature 90 could include any suitable number of arrays of perforations 94 and/or lines of perforations 92. In addition, 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. Also, the perforations 35 could have different regular or irregular sizes and/or spacings. Further, the perforations 35 could extend in additional portions of the blank (e.g., the flange portion 14 and/or the central portion 11).
As shown in
In the illustrated embodiment, the cover C and the waterproof coating 80 can cooperate to retain moisture in the package 150 from leaking out of the package. For example, the food product F can have excess water or grease that can collect in the cavity 60. Also, in one embodiment, 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. In certain occasions, the package 150 could be positioned on a surface (not shown) so that it is at least partially supported by the flange 114. In such circumstances, it can be desirable for the paperboard layers 76, 78 to remain dry (e.g., to not absorb liquids) in order to retain the structural integrity of the base layer (e.g., the flange could be weakened due to softening of the paperboard layers that have absorbed liquids). With the package 150 oriented on its side (e.g., as shown in
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. Also, 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. In some embodiments, 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 (
It is understood that 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. Also, 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.
Any of the features of the various embodiments of the disclosure can be combined with, replaced by, or otherwise configured with other features of other embodiments of the disclosure without departing from the scope of this disclosure.
Optionally, 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.
All dimensional information presented herein is intended to be illustrative of certain aspects, features, etc., of various embodiments of the disclosure, and is not intended to limit the scope of the disclosure. The dimensions of the blanks, containers, forming tools, features, or any other dimension, can be more or less than what is shown and described in this disclosure without departing from the scope of this disclosure and can be within the listed ranges of dimensions for each feature or outside the listed ranges of dimensions for each feature without departing from the scope of this disclosure.
In accordance with the exemplary embodiments, 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.
The foregoing description illustrates and describes various embodiments of the present disclosure. As various changes could be made in the above construction without departing from the scope of the disclosure, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. Furthermore, the scope of the present disclosure covers various modifications, combinations, and alterations, etc., of the above-described embodiments. Additionally, the disclosure shows and describes only selected embodiments, but various other combinations, modifications, and environments are contemplated and are within the scope of the inventive concept as expressed herein, commensurate with the above teachings, and/or within the skill or knowledge of the relevant art. Furthermore, certain features and characteristics of each embodiment may be selectively interchanged and applied to other illustrated and non-illustrated embodiments without departing from the scope of the disclosure.
Claims
1. A container for holding a food product, the container comprising:
- a sidewall at least partially defining a cavity of the container;
- a flange extending from the sidewall;
- 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 comprising a portion of the material, wherein the barrier layer at least partially forms an interior surface of the container, and the interior surface at least partially extends along the cavity of the container; 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.
2. The container of claim 1, wherein the flange comprises an edge, and the base layer is at least partially exposed at the edge.
3. The container of claim 2, wherein the absorption feature is spaced apart from the edge for allowing the liquids to pass through the barrier layer for absorption into the base layer at a location that is spaced apart from the edge.
4. The container of claim 3, wherein the absorption feature extends in at least the sidewall.
5. The container of claim 1, wherein the barrier layer is a waterproof layer, and a moisture-proof layer is disposed on an opposite surface of the container from the waterproof layer.
6. The container of claim 1, wherein the barrier layer comprises a waterproof material and the base layer comprises a water-absorbing material.
7. The container of claim 6, wherein the base layer comprises paperboard.
8. The container of claim 1, wherein the base layer comprises at least two layers of paperboard.
9. The container of claim 8, wherein the barrier layer is a waterproof layer disposed on a first layer of the at least two layers of paperboard, and a moisture-proof layer is disposed on a second layer of the at least two layers of paperboard, opposite to the waterproof layer.
10. The container of claim 1, wherein the absorption feature comprises a plurality of voids in the barrier layer.
11. The container of claim 10, wherein the plurality of voids comprises a line of voids, the voids of the line of voids extending in a linear arrangement in the sidewall.
12. The container of claim 11, wherein the line of voids is generally parallel to the flange.
13. The container of claim 12, wherein the line of voids is a first line of voids, the plurality of voids further comprises a second line of voids extending in the sidewall, the second line of voids extending generally perpendicular to the flange.
14. The container of claim 11, wherein the line of voids is generally perpendicular to the flange.
15. The container of claim 1, wherein the sidewall comprises a side panel and an end panel that is generally perpendicular to the side panel, the absorption feature comprises a first plurality of voids extending in the side panel and a second plurality of voids extending in the end panel.
16. The container of claim 15, wherein the side panel is a first side panel and the end panel is a first end panel, the sidewall comprises a second side panel disposed generally opposite to the first side panel and a second end panel disposed generally opposite to the first end panel, and the absorption feature further comprises a third plurality of voids extending in the second side panel and a fourth plurality of voids extending in the second end panel.
17. The container of claim 16, wherein the sidewall further comprises a first corner connecting the first side panel to the first end panel, a second corner connecting the first side panel to the second end panel, a third corner connecting the second side panel to the first end panel, and a fourth corner connecting the second side panel to the second end panel.
18. The container of claim 17, wherein the flange extends along each of the first side panel, the second side panel, the first end panel, the second end panel, the first corner, the second corner, the third corner, and the fourth corner of the sidewall.
19. The container of claim 15, wherein the side panel and the end panel of the sidewall are connected by a corner, and the container further comprises a plurality of pleats extending in at least the corner of the sidewall.
20. The container of claim 19, wherein absorption feature further comprises a third plurality of voids, each void of the third plurality of voids being generally collinear with a respective pleat of the plurality of pleats.
21. The container of claim 1, further comprising a bottom panel, wherein the sidewall extends at least partially along a perimeter of the bottom panel, and the absorption feature extends in at least the bottom panel.
22. The container of claim 1, further comprising a cover at least partially in face-to-face contact with the flange.
23. The container of claim 22, wherein the cover extends over and covers the interior surface of the cavity.
24. The container of claim 1, further comprising a plurality of pleats extending in at least a portion of at least the sidewall, wherein the absorption feature comprises a plurality of voids in the barrier layer, and the voids of the plurality of voids are generally collinear with respective pleats of the plurality of pleats.
25. In combination, the container of claim 1 and a food item, wherein the food item is disposed in the cavity.
26. A blank for forming a container for holding a food product, the blank comprising:
- 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;
- 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 comprising a portion of the material, wherein the barrier layer at least partially forms an interior surface of the blank, and the interior surface is for at least partially extending along the cavity when the container is formed from 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.
27. The blank of claim 26, wherein the flange portion comprises an edge, and the base layer is at least partially exposed at the edge.
28. The blank of claim 27, wherein the absorption feature is spaced apart from the edge for allowing the liquids to pass through the barrier layer for absorption into the base layer at a location that is spaced apart from the edge.
29. The blank of claim 28, wherein the absorption feature extends in at least the sidewall portion.
30. The blank of claim 26, wherein the barrier layer is a waterproof layer, and a moisture-proof layer is disposed on an opposite surface of the blank from the waterproof layer.
31. The blank of claim 26, wherein the barrier layer comprises a waterproof material and the base layer comprises a water-absorbing material.
32. The blank of claim 31, wherein the base layer comprises paperboard.
33. The blank of claim 26, wherein the base layer comprises at least two layers of paperboard.
34. The blank of claim 33, wherein the barrier layer is a waterproof layer disposed on a first layer of the at least two layers of paperboard, and a moisture-proof layer is disposed on a second layer of the at least two layers of paperboard, opposite to the waterproof layer.
35. The blank of claim 26, wherein the absorption feature comprises a plurality of voids in the barrier layer.
36. The blank of claim 35, wherein the plurality of voids comprises a line of voids, the voids of the line of voids extending in a linear arrangement in at least the sidewall portion.
37. The blank of claim 36, wherein the line of voids is generally parallel to the flange portion.
38. The blank of claim 37, wherein the line of voids is a first line of voids, the plurality of voids further comprises a second line of voids extending in at least the sidewall portion, the second line of voids extending generally perpendicular to the flange portion.
39. The blank of claim 36, wherein the line of voids is generally perpendicular to the flange portion.
40. The blank of claim 26, wherein the sidewall portion comprises a side portion and an end portion that is generally perpendicular to the side portion, the absorption feature comprises a first plurality of voids extending in the side portion and a second plurality of voids extending in the end portion.
41. The blank of claim 40, wherein the side portion is a first side portion and the end portion is a first end portion, the sidewall portion comprises a second side portion disposed generally opposite to the first side portion and a second end portion disposed generally opposite to the first end portion, and the absorption feature further comprises a third plurality of voids extending in the second side portion and a fourth plurality of voids extending in the second end portion.
42. The blank of claim 41, wherein the sidewall portion further comprises a first corner portion connecting the first side portion to the first end portion, a second corner portion connecting the first side portion to the second end portion, a third corner portion connecting the second side portion to the first end portion, and a fourth corner portion connecting the second side portion to the second end portion.
43. The blank of claim 42, wherein the flange portion extends along each of the first side portion, the second side portion, the first end portion, the second end portion, the first corner portion, the second corner portion, the third corner portion, and the fourth corner portion of the sidewall portion.
44. The blank of claim 40, wherein the side portion and the end portion of the sidewall portion are connected by a corner portion, and the blank further comprises a plurality of score lines extending in at least the corner portion of the sidewall portion.
45. The blank of claim 44, wherein absorption feature further comprises a third plurality of voids, each void of the third plurality of voids being generally collinear with a respective score line of the plurality of score lines.
46. The blank of claim 26, further comprising a central portion for forming a bottom wall when the container is formed from the blank, wherein the sidewall portion extends at least partially along a perimeter of the central portion, and the absorption feature extends in at least the central portion.
47. The blank of claim 26, further comprising a plurality of score lines for forming a plurality of pleats when the container is formed from the blank, wherein the plurality of score lines extends in at least a portion of at least the sidewall portion, the absorption feature comprises a plurality of voids in the barrier layer, and the voids of the plurality of voids are generally collinear with respective score lines of the plurality of score lines.
48. A method of forming a container, the method comprising:
- 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, wherein the blank comprises a sidewall portion and a flange portion each comprising a portion of the material;
- forming a sidewall comprising at least the side portion of the blank, the sidewall at least partially defining a cavity of the container with the interior surface at least partially extending along the cavity of the container; and
- forming a flange comprising at least the flange portion of the blank, the flange extending from the sidewall.
49. The method of claim 48, wherein the flange comprises an edge, the base layer is at least partially exposed at the edge, and the absorption feature is spaced apart from the edge for allowing the liquids to pass through the barrier layer for absorption into the base layer at a location that is spaced apart from the edge.
50. The method of claim 48, wherein the barrier layer is a waterproof layer, and a moisture-proof layer is disposed on an opposite surface of the container from the waterproof layer.
51. The method of claim 48, wherein the barrier layer comprises a waterproof material and the base layer comprises paperboard.
52. The method of claim 48, wherein the base layer comprises at least two layers of paperboard, the barrier layer is a waterproof layer disposed on a first layer of the at least two layers of paperboard, and a moisture-proof layer is disposed on a second layer of the at least two layers of paperboard, opposite to the waterproof layer.
53. The method of claim 48, wherein the absorption feature comprises a plurality of voids in the barrier layer.
54. The method of claim 48, wherein the forming the sidewall comprises forming a side panel and an end panel that is generally perpendicular to the side panel, the absorption feature comprises a first plurality of voids extending in the side panel and a second plurality of voids extending in the end panel.
55. The method of claim 54, wherein the side panel and the end panel of the sidewall are connected by a corner, the blank further comprises a plurality of score lines extending in at least a portion of the sidewall portion, the absorption feature further comprises a third plurality of voids, each void of the third plurality of voids being generally collinear with a respective score line of the plurality of score lines, the forming the sidewall comprises forming a plurality of pleats along the plurality of score lines, and the plurality of pleats extend in at least the corner.
56. The method of claim 48, further comprising disposing a food product in the cavity of the container and attaching a cover at least partially in face-to-face contact with the flange.
Type: Application
Filed: Dec 9, 2016
Publication Date: Jun 15, 2017
Inventors: Joseph C. Walsh (Boulder, CO), Michael L. Schlauch (Boulder, CO), Raymond S. Kastanek (Mead, CO)
Application Number: 15/373,900