EP0357276A1 - Vacuum packed canned product and method using foil membrane end closure - Google Patents

Vacuum packed canned product and method using foil membrane end closure Download PDF

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Publication number
EP0357276A1
EP0357276A1 EP89308179A EP89308179A EP0357276A1 EP 0357276 A1 EP0357276 A1 EP 0357276A1 EP 89308179 A EP89308179 A EP 89308179A EP 89308179 A EP89308179 A EP 89308179A EP 0357276 A1 EP0357276 A1 EP 0357276A1
Authority
EP
European Patent Office
Prior art keywords
foil membrane
product according
canned product
shelf
foil
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP89308179A
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German (de)
English (en)
French (fr)
Inventor
Frank Nugent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Foods Corp
Original Assignee
General Foods Corp
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 General Foods Corp filed Critical General Foods Corp
Publication of EP0357276A1 publication Critical patent/EP0357276A1/en
Withdrawn legal-status Critical Current

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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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • 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
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • B65D79/0087—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a closure, e.g. in caps or lids
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0018—Upper closure of the 43-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure

Definitions

  • This invention relates to a vacuum packed canned product, especially for foods, having an easy opening foil membrane closure, and a method of forming such a package.
  • a number of products, and particularly food products in granular form, are packaged in cylindrical cans wherein one of the can ends is readily opened by peeling back a thin foil membrane which is adhered to that end.
  • Such membranes comprise a flexible foil/plastic composite structure adapted to define a closure member which is heat sealed to a tin plated steel or an aluminum can end.
  • Such a closure is described in two publications. First, Aluminum-Walzwerke Singen Gmbh, Alusingen-Platz 1, D-7700 Singen/Hohentwiel, Federal Republic of Germany, in their April 4, 1987 edition entitled ALUFIX -Laminate Stock for Easy Opening Can Ends. Second, a February 6, 1988 article entitled "Specialty Stamps Out Sharp Edges with its New End".
  • Such laminated foil membranes are capable of numerous combinations in end constructions employing Surlyn or heat-sealing lacquers used as heat-sealing coatings.
  • Polyamides used as heat-sealing coatings are similarly employable for retortable products, as set forth in the above-noted Alusingen publication.
  • Such closures have come to be known as Rychiger type closures.
  • Membrane end closures are also described in the Hardt U.S. Patent No. 4,328,905, issued May 11, 1982, and the Markert U.S. Patent No. 4,098,404, issued July 4, 1978.
  • an easy opening container In contrast to these extremely rigorous conditions, the entire concept of an easy opening container is to provide a closure which can be easily opened under simple manual force by a consumer of average strength.
  • the entire concept associated with an easy opening, peelable foil membrane closure is essentially at cross purposes with the rigorous requirements for the vacuum packaging of a dry, granular product such as coffee or the like.
  • a can containing roasted and ground coffee must necessarily have a relatively wide opening. Consequently, a full vacuum will necessarily pull the foil membrane into a downward concave shape. The larger the opening, the farther down the foil membrane will be pulled. To assure the airtight integrity of the seal, the upper boundary of the product cannot be so high that it would prevent the foil membrane from deforming downwardly into the can. However, if the product is routinely filled to a lower level which appears to be too far beneath the top of the can, the average consumer might well be dissatisfied because the can will appear to be less than full. This problem is not resolved by making the opening smaller. The average consumer demands that the opening be larger than a minimum size, generally sufficient for the consumer to place his or her hand down into the can.
  • the purpose of the present invention is to provide a vacuum packaged dry, granular product having a reliable, easy opening, peelable foil membrane closure.
  • a canned product and a method of packaging same wherein the container, generally a metallic can, has an upper end having the peelable foil membrane attached thereto such that the holding force between the foil membrane and the end of the can is sufficient to reliably maintain vacuum during abusive handling conditions, including packaging, shipping and long storage of the cans, while concurrently being removable with a peel force acceptable to a consumer of average strength.
  • these desirable characteristics are achieved by providing the proper combination of the foil thickness, the adherence characteristics of the adhesive and the width of the annular band at which the foil membrane is adhered to the top of the can.
  • the band width must be at a minimum of approximately 2.5 mm, but preferably over approximately 3.0 mm, and even more preferably approximately 3.4 mm.
  • prior foil membranes which were used on small diameter, non-vacuum cans, had a band width of no more than 1.9 mm.
  • the foil membrane should preferably be relatively thick, preferably approximately 100 microns, but generally in the range of 80-100 microns, or possibly up to 120 microns. This compares to prior membranes of approximately 60 microns, used in prior non-vacuum applications.
  • the adhesive is preferably a hot melt PVC.
  • Foil membranes of the present type are generally provided with some type of embossing.
  • embossing has been primarily to enhance the appearance of the foil membrane.
  • the embossing has the added advantage of forming undulations which resist the return of the foil membrane to its original shape, after being pulled concavely downwardly by the vacuum in the can, as the negative pressure in the can is gradually, slightly reduced over the shelf life of the product.
  • the foil membrane should be openable by a peel force acceptable to the average consumer. Generally, this would be between 4 and 10 pounds.
  • Roasted and ground coffee like many products, is sold in different size containers.
  • a so-called one-pound can of coffee is generally sold in a 401 size can (having a diameter of 4 1/16 inches)
  • a so-called two-pound can of coffee is generally sold in a 502 size can (5 2/16 inches in diameter)
  • a so-called three-pound can of coffee is generally sold in a 603 size can (6 3/16 inches in diameter).
  • the diameters of these can sizes differ, it would be undesirable to provide larger size openings for the larger size cans since larger openings would cause the foil membrane to flex too far concavely downwardly into the can.
  • these openings must still include at least one point relatively close to the edge of the can so that when the consumer pours the dry, granular product out of the can, there would be at least one point where the product could pour easily, unhindered by a large flange between the opening and the edge of the can.
  • the opening when the foil membrane is applied for use on the larger cans, for example, the 603 size cans, the opening, being much smaller than the outer diameter of the can, is made eccentric relative to the axis of the can such that at least one point thereof is relatively close to the edge of the can, i.e., preferably spaced therefrom by a distance substantially equal to the said band width.
  • the foil membrane itself is generally much thinner and much more flexible than the can end to which the foil membrane is attached.
  • the foil membrane will generally include a portion which extends beyond the band and is folded back against the top of the foil membrane. This will provide a tab which can be easily grasped by the consumer and pulled back to peel back the foil membrane from the end of the can, thus exposing the opening therein.
  • FIG 1 illustrates a preferred embodiment of the vacuum packed canned product of the present invention, namely a can of the type generally used for the vacuum packing of roasted and ground coffee.
  • a container has a metallic, cylindrical wall portion 13, a bottom or lower end 11 and a top or upper end 12.
  • the bottom 11 is of conventional construction and forms no portion of the present invention.
  • the top 12 is closed by a foil membrane 14 having a tab 15, made in accordance with the present invention as described more fully below.
  • the can is completed with a snap-on, plastic attachable and removable cover which is shown in dotted lines in Figure 2 at 18, which would be used by the consumer to protect the product after removal of the foil membrane.
  • Coffee cans are generally of three sizes, including the so-called one-pound can, referred to as the 401 size and having a diameter of approximately 4 1/16 inches, the so-called two-pound can referred to as the 502 size and having a diameter of approximately 5 2/16 inches, and the so-called three-pound can, referred to as the 603 size, having a diameter of approximately 6 3/16 inches.
  • the foil membrane 14 will generally be concentric with the axis of the can for the 401 and 502 size cans, as illustrated in Figure 1, but will be eccentric relative to the axis of the can for larger sizes such as the 603 size can, as shown in Figures 9 and 10.
  • the can will contain a product 16, generally a dry, granular food product, and especially roasted and ground coffee.
  • the top comprises a stiff, metal portion comprising a circumferential rim 20 and a shelf portion 21 which curls inwardly and downwardly to form the opening 22 in the top of the can for removal of the product 16.
  • the foil membrane 14 is adhered to the shelf portion 21 throughout the width of band B by a sealant 25 (see Figure 4), the preferred thickness of this band of sealant extending for substantially completely about the circumference of the shelf portion 21, although its thickness is slightly reduced at the outer periphery in the area where the pull tab 15 is bent back.
  • the foil membrane 14 is flexed concavely downwardly into the opening 22 to a maximum depth at 26.
  • the can is filled with coffee 16 up to a level which will allow the foil membrane 14 to deform downwardly when the can reenters the atmosphere. If the can is grossly overfilled to a higher level which would hinder the downward deformation of the foil membrane, this would cause an unsightly deforming of the foil membrane and hinder proper sealing of the top 12 onto the top edge of the can at the circumferential rim 20.
  • the material of the foil membrane 14 overlying the opening 22 preferably has an undulated shape which, after downward flexing of the foil membrane 14, is generally smooth, usually retaining only the small protrusions 31. While these protrusions would exist over the entire area which overlies the opening 22, only a portion thereof (only one quadrant thereof) is illustrated (See Figure 3).
  • the embossments are stretched downwardly and smoothened to varying degrees. Closer to the edge portions of the foil membrane downward flexing will generally be less than in the central area of the foil membrane.
  • Figures 5 through 7 illustrate the nature of the top 12 before the vacuum is applied, which vacuum forces the foil membrane 14 into its downwardly concave shape.
  • the top 12 Before being applied to the can 13, the top 12 is in the form of a lid with the foil membrane already attached to the shelf portion of the piece which forms the shelf 21 and the circumferential rim 20.
  • the undulations are in the form of depressions in the form of parallelograms, preferably squares, as illustrated in Figure 6 and at 32 in Figure 7.
  • Within each parallelogram is a raised frustroconical portion 31.
  • the depressions 32 are stretched out to varying degrees. In the central area where the stretching is greatest, only the upper portions of the frustroconical portions 31 remain, as illustrated in Figure 8. These portions 31 are also illustrated in Figure 3.
  • An essential feature of the present invention is that the foil membrane 14 be adhered to the top 12, and in particular, to the shelf portion 21, with a sufficient force that the seal will maintain its airtight integrity, notwithstanding the extremely abusive conditions to which a product of this nature is subjected, while concurrently being removable with a peel force acceptable to a consumer of average strength.
  • These abusive conditions include, firstly, the application of a substantially full vacuum, on the order of 29 inches of Hg, although the vacuum may be in the range of 20 - 29 inches of Hg.
  • the package is subject to both hot and cold conditions and is continually under stress. After the packaging process, the cans are further abused in shipment in commerce, to the ultimate customer's shelf.
  • a product of this nature should have a long shelf life, preferably more than six months, so that the airtight integrity of the seal must remain over that long shelf life.
  • an extremely high level of reliability for example over 99.5%, should be achieved.
  • Figures 9 and 10 illustrate another embodiment of the present invention which illustrates its application to a relatively large diameter can.
  • the relatively large diameter can 40 includes a lid which comprises a circumferential rim 41 similar to the circumferential rim 20 of Figures 1 through 4 and an inner portion 42 which forms a shelf portion having an eccentrically located circular opening 43 covered by the foil membrane 14 which is attached to the shelf portion of lid.
  • the opening 43 will be somewhat smaller than the diameter of the can 40, but in this embodiment, more than the radius of the can 40.
  • the opening 43 and its covering foil membrane 14 are positioned eccentrically on the can 40 relative to its vertical axis.
  • the peeling strength could be in the range of from 4 to 10 pounds. Although the smaller the better for the consumer, and preferably between 5 and 8 pounds, it has been found to date that given the need for the high integrity seal, a peel strength can be achieved generally in the range of 5 to 10 pounds.
  • this band width should be more than 2.5 mm, but preferably over 3.0 mm. In a preferred embodiment, this band has a width of 3.4 mm.
  • This band width cannot be increased indiscriminately because as its width increases, so too must one increase the width of the shelf portion. Specifically, in the embodiment of Figures 1 through 4, the entire shelf portion 21 would have to be enlarged, while in the embodiment of Figures 9 and 10, one would have to enlarge the shelf portion at least at the point where the foil membrane 14 is closest to the edge. Otherwise, as noted above, if this shelf portion becomes too wide, the consumer will find it inconvenient to pour product out of the container because too much product would hang up behind the shelf portion at the point of pouring.
  • sealant Another important factor is a provision of a suitable sealant. It is necessary to use a sealant which firmly holds the foil membrane to the metal top.
  • the preferred sealant which satisfies these conditions would comprise a polyvinyl chloride (PVC) heat sealable coating base, preferably applied as a layer to the underside of the foil membrane 14.
  • PVC polyvinyl chloride
  • the foil membrane would be an aluminum foil with a composition of approximately 98.3% aluminum, the sealant would be Alusuisse #410 at 12 ⁇ 2.4 gms/square meter.
  • Another significant parameter of the present invention is the thickness of the foil membrane.
  • This membrane must be thick enough to withstand the abusive conditions referred to above, and also to retain its downwardly flexed shape even as the level of vacuum within the container is reduced over the shelf life of the product. For example, over a one-year shelf life the vacuum could be reduced, owing to carbon dioxide buildup, from its original level of between 20 and 29 inches of Hg to a lesser level of between 5 and 10 inches of Hg. If the foil membrane were not of sufficient strength, this reduction in the internal vacuum could push the foil membrane upwardly.
  • the foil membrane could not possibly return to its original embossed, undulated shape, as discussed earlier with reference to Figures 5 and 6, the result would be a rather ugly wrinkling of the foil membrane 14, unacceptable to the consumer.
  • the embossed, undulated shape and, in particular, the remnants thereof, including the remaining frustoconical portions 31, will also assist in preventing the foil membrane 14 from moving upwardly from its downwardly flexed shape upon reduction of vacuum in the can.
  • the thickness of the foil membrane 14 nonetheless is a significant factor in reducing such upward movement of the foil membrane.
  • the preferred thickness of the foil membrane when made of the preferred material, 98.3% aluminum, is approximately 100 microns, although it is believed that the invention would be operable with a somewhat smaller thickness, possibly as low as 80 microns. At the upper limit, it is believed that the thickness could approach 120 microns.
  • the diameter of the foil membrane 14 should be fairly large, relative to the diameter of the can to which it is applied. Generally, at least for all but the larger cans, the foil membrane 14 should generally approach the diameter of the can and be concentric therewith. However, even for the larger cans, as illustrated in Figures 9 and 10, the diameter of foil membrane 14 should be greater than the radius of the can.
  • the tab 15 when gripped and pulled, will transfer the tearing stresses from the tab to a focused region of points, whereby a more reliable and effective action is afforded, so that the foil membrane 14 will separate from its sealed relationship to the shelf portion.
  • the foil membrane including a certain composition
  • the foil membrane would generally be of the thicknesses described, i.e., 80 to 100 microns and preferably 100 microns.
  • the foil membrane can be varied in composition or shape in ways which would alter its stiffness such that the preferred thickness might be different than the range described above. For example, for a foil having a harder alloy, the thickness might be somewhat reduced. Also, for different shapes of the undulations 30 shown in Figures 5 and 6, the strength of the foil membrane might be changed, thus permitting a corresponding increase or decrease in the thickness of the foil membrane.
  • the exterior of the foil membrane 14 will preferably be colored differently from the underside thereof, for example, gold-colored with a lacquer to thereby provide a contrast with the tab 15 which will be silver in appearance since the visible portion thereof will be an extension of the underside of the foil, bent back over the top thereof.
  • the top of the can itself i.e., the material which forms the shelf portion, the rim and the curled back opening, has a thickness of 0.0083 inches (i.e., 75 pounds per base box of tin-coated steel), the wall portion 13 being approximately 0.0083 inches.
  • the foil membrane 14 will have a thickness which is substantially smaller (less than 1/2) of the said material forming the top. Additionally, the foil membrane 14 will, of course, be much more flexible than the material of the shelf portion so that when the vacuum is applied, it will flex downwardly far more than the shelf portion, if the latter flexes downwardly at all, as best illustrated in Figure 2.
  • the top 12, including elements 20, 21 and 22, or 40, 41, and 42, will preferably be composed of steel electroplated with tin and provided in the form of a metal ring, the rim portion 20 or 40 of which will be double-seamed to the end of cylindrical portion 13.
  • a solvent-based compound, Viz, Midland Dexter, No. 2140 for double-seaming the end of can wall 13 may be used, although a water-based compound, e.g., Dewey and Almy, No. 480-T, may also be used.
  • a container 13 or 40 is supplied having a conventional bottom 11
  • the container is filled with product, e.g., roasted and ground coffee at step B.
  • a lid as shown in Figure 5 or a corresponding lid for the embodiment of Figures 9 and 10 is applied loosely to the container, now filled with product.
  • the lid is crimped onto the upper edge of the can at the circumferential rim. Crimping is the first stage of forming the double-seam seal, wherein the lid is bent down onto both the outer side and the inner side of the upper edge of the can, but only loosely, not yet airtight.
  • step F the product then passes out of the vacuum chamber at step F wherein the atmospheric pressure acting downwardly on the foil membrane 14, having the vacuum therebeneath, is moved concavely downwardly.
  • step G a conventional attachable and removable snap-on plastic cover 18 is applied to the can, this cover to be used by the consumer after the foil membrane 14 has been removed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Vacuum Packaging (AREA)
EP89308179A 1988-09-02 1989-08-11 Vacuum packed canned product and method using foil membrane end closure Withdrawn EP0357276A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US24002888A 1988-09-02 1988-09-02
US24003488A 1988-09-02 1988-09-02
US240034 1988-09-02
US240028 1988-09-02

Publications (1)

Publication Number Publication Date
EP0357276A1 true EP0357276A1 (en) 1990-03-07

Family

ID=26933088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89308179A Withdrawn EP0357276A1 (en) 1988-09-02 1989-08-11 Vacuum packed canned product and method using foil membrane end closure

Country Status (7)

Country Link
EP (1) EP0357276A1 (no)
JP (1) JPH02191172A (no)
KR (1) KR900004600A (no)
CN (1) CN1043674A (no)
DK (1) DK404589A (no)
FI (1) FI893827A (no)
NO (1) NO893272L (no)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0683110A1 (en) * 1994-05-21 1995-11-22 CarnaudMetalbox plc Container-lid combination
WO2000055065A1 (en) * 1999-03-12 2000-09-21 Fotopoulos G Anastasios Containers with several portions of liquid foodstuffs
EP1101707A1 (en) * 1999-11-15 2001-05-23 Sonoco Development, Inc. Resealing overcap for a cylindrical container
GB2396853A (en) * 2002-12-09 2004-07-07 United Biscuits Ltd Containers for food packaging
WO2006053013A1 (en) * 2004-11-10 2006-05-18 Graham Packaging Company, L.P. Moveable seal
WO2007140215A2 (en) * 2006-05-26 2007-12-06 Sonoco Development, Inc. Membrane lid with recessed tab, and container incorporating same
US7465111B2 (en) * 2002-07-05 2008-12-16 Applitech, Inc. Stackable cleaner
EP2172405A1 (en) * 2008-10-01 2010-04-07 Impress Group B.V. Closing membrane for a container, having an improved access-finger
US7712624B2 (en) 2006-12-27 2010-05-11 Kraft Foods Holdings, Inc. Plastic coffee container with top load support by particulate product
EP2332849A1 (de) * 2003-08-19 2011-06-15 Impress Metal Packaging S.A. Deckelring mit geneigtem Flachsteg und Herstellungsverfahren
EP2366634A1 (en) * 2010-03-18 2011-09-21 Impress Group B.V. Closure for an easy opening container and a container provided with such closure
WO2013107899A1 (de) * 2012-01-20 2013-07-25 Ardagh Mp Group Netherlands B.V. Deckeleinheit mit adapter, deckel und siegelfolie für einen behälter
WO2019135883A1 (en) * 2018-01-02 2019-07-11 Owens-Brockway Glass Container Inc. Container closure with vacuum-indicating pull tab
WO2021074110A1 (fr) * 2019-10-14 2021-04-22 Compagnie Générale De Conserve Methode de fabrication d'une boite de conserve et boite de conserve
US11155373B2 (en) 2008-05-19 2021-10-26 David Murray Melrose Headspace modification method for removal of vacuum pressure and apparatus therefor
US12122584B2 (en) 2021-08-27 2024-10-22 Sonoco Development, Inc. Container assemblies with paper-based end closures

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Publication number Priority date Publication date Assignee Title
MY138331A (en) * 2004-12-09 2009-05-29 Crown Packaging Technology Inc Method of and apparatus for forming a closure
KR101956857B1 (ko) * 2018-08-27 2019-03-13 (주)제로투세븐 분말용기의 밀봉캡 및 그 제조방법
CN113460452B (zh) * 2021-07-30 2022-01-04 江苏致乐管业科技有限公司 一种pe塑料颗粒处理方法

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US4098404A (en) * 1973-02-23 1978-07-04 Sonoco Products Company Vacuum package with flexible end
FR2565942A1 (fr) * 1984-06-14 1985-12-20 Sofratube Sa Procede d'operculage d'une boite de conditionnement et boite de conditionnement obtenue par ce procede

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Publication number Priority date Publication date Assignee Title
US3157308A (en) * 1961-09-05 1964-11-17 Clark Mfg Co J L Canister type container and method of making the same
US4098404A (en) * 1973-02-23 1978-07-04 Sonoco Products Company Vacuum package with flexible end
FR2565942A1 (fr) * 1984-06-14 1985-12-20 Sofratube Sa Procede d'operculage d'une boite de conditionnement et boite de conditionnement obtenue par ce procede

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0683110A1 (en) * 1994-05-21 1995-11-22 CarnaudMetalbox plc Container-lid combination
US5725120A (en) * 1994-05-21 1998-03-10 Carnaudmetalbox (Holdings) Usa, Inc. Containers
WO2000055065A1 (en) * 1999-03-12 2000-09-21 Fotopoulos G Anastasios Containers with several portions of liquid foodstuffs
AU769550B2 (en) * 1999-03-12 2004-01-29 G. Anastasios Fotopoulos Containers with several portions of liquid foodstuffs
EP1101707A1 (en) * 1999-11-15 2001-05-23 Sonoco Development, Inc. Resealing overcap for a cylindrical container
US7465111B2 (en) * 2002-07-05 2008-12-16 Applitech, Inc. Stackable cleaner
GB2396853A (en) * 2002-12-09 2004-07-07 United Biscuits Ltd Containers for food packaging
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Also Published As

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FI893827A0 (fi) 1989-08-14
FI893827A (fi) 1990-03-03
NO893272D0 (no) 1989-08-15
JPH02191172A (ja) 1990-07-27
KR900004600A (ko) 1990-04-12
CN1043674A (zh) 1990-07-11
DK404589D0 (da) 1989-08-17
NO893272L (no) 1990-03-05
DK404589A (da) 1990-03-03

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