EP3772472B1 - Thermobehältnis - Google Patents

Thermobehältnis Download PDF

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Publication number
EP3772472B1
EP3772472B1 EP20174907.4A EP20174907A EP3772472B1 EP 3772472 B1 EP3772472 B1 EP 3772472B1 EP 20174907 A EP20174907 A EP 20174907A EP 3772472 B1 EP3772472 B1 EP 3772472B1
Authority
EP
European Patent Office
Prior art keywords
bag
thermal container
fibrous material
cushion
rear cushion
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.)
Active
Application number
EP20174907.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3772472C0 (de
EP3772472A1 (de
Inventor
Georg Scheffer
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.)
Profuemed Karlheinz Lohr E K
Original Assignee
Profuemed Karlheinz Lohr E K
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 Profuemed Karlheinz Lohr E K filed Critical Profuemed Karlheinz Lohr E K
Priority to EP21188272.5A priority Critical patent/EP3922574A1/de
Publication of EP3772472A1 publication Critical patent/EP3772472A1/de
Application granted granted Critical
Publication of EP3772472B1 publication Critical patent/EP3772472B1/de
Publication of EP3772472C0 publication Critical patent/EP3772472C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
    • 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
    • B65D81/38—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 with thermal insulation
    • B65D81/3888—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 with thermal insulation wrappers or flexible containers, e.g. pouches, bags
    • B65D81/3897—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 with thermal insulation wrappers or flexible containers, e.g. pouches, bags formed of different materials, e.g. laminated or foam filling between walls

Definitions

  • the present invention relates to a thermos container which has at least one flat back cushion and a flat front cushion which extends in another plane above the back cushion and which are connected to one another on opposite side edges and on another side edge of the thermos container, are designed in one piece or via a connecting piece merge into one another, so that a cavity is formed between the back cushion and the front cushion.
  • Thermal containers of this type are used to maintain the temperature of a packaged item introduced into the cavity over a specific period of time. With such thermal containers, the cooling or heating of the packaged goods placed in them can be maintained over a specific time within a specific temperature window. It is thus possible by means of such thermal containers, for example, to send frozen goods such as deep-frozen food or deep-frozen animal feed for up to 36 hours without the respective food or animal feed being damaged.
  • From the pamphlet DE 78 36 403 U1 is an insulating transport packaging made of polyethylene foam film, in which there is a thin layer of air between the individual layers of film.
  • the pamphlets WO 03/066435 A2 and U.S. 2007/251942 A1 disclose microwave interactive packaging which affects the effect of microwave radiation on the food to be heated, and the manufacture of such packaging. These packages have closed cells that swell when exposed to microwave radiation. The resulting, air-filled insulating pockets insulate the food to be heated from the surrounding microwave.
  • the pamphlet DE 10 2005 021187 A1 discloses a double-walled alcopop overwrap having a containment space defined by an overwrap wall.
  • the outer packaging wall is formed here by an essentially dimensionally stable and flexible film tube that is hollow on the inside.
  • a double-walled bag in which an insulating material is introduced between an outer bag and a smaller inner bag inserted therein, each made of kraft paper, cardboard or cardboard.
  • This insulating material can be, inter alia, multi-ply crepe paper.
  • thermos container which has at least one flat back cushion and a flat front cushion which extends in another plane above the back cushion and which are connected to one another on opposite side edges and on a further side edge of the thermos container, are designed in one piece or are connected to one another via a connecting piece transition, so that a cavity is formed between the back cushion and the front cushion, wherein the back cushion and the front cushion are each formed from at least one bag and a fibrous material located in the at least one bag, the at least one bag being made of a fleece is made of thermoplastic material and the fibrous material is a stack of a multiplicity of individual layers of creped fibrous material lying flat on top of one another, each of the individual layers having a crepe height of ⁇ 0.3 mm.
  • the thermal container according to the invention is suitable as a cool bag.
  • the at least one object whose temperature is to be maintained can advantageously be placed in the cavity formed between the back cushion and the front cushion connected thereto. Thereafter, the cavity can be suitably sealed.
  • the fibrous material of the back cushion and the front cushion guarantees a particularly advantageous thermal insulation of the at least one object placed in the thermal container from the environment. Due to its structure, the fibrous material has a large number of air inclusions or air gaps, as a result of which the respective temperature can be maintained particularly well. It is thus even possible with the present invention, for example, to maintain cooling of a packaged item placed in the insulated container for up to 72 hours within a desired temperature window.
  • each of the individual layers has a crepe height of ⁇ 0.3 mm, preferably ⁇ 0.4 mm, particularly preferably ⁇ 0.6 mm, in one embodiment 0.65 mm. It is therefore a so-called high crepe. This ensures that particularly large air inclusions or air gaps are formed between the individual layers of creped fibrous material lying flat one on top of the other, which leads to a particularly high temperature retention capacity of the thermal container formed therewith.
  • the respective fibrous material does not slip due to the large number of individual layers lying one on top of the other and their respective introduction into the bag. This is because the bag forms an envelope for the respective fibrous material, which leads to mechanical stabilization.
  • a number of at least 10 individual layers preferably 24, 28 or 32 individual layers, are preferably used as a multiplicity of individual layers lying one on top of the other. These individual layers are doubled and cut to the desired width depending on the size of the pillow.
  • the pouch also has a protective function for the fibrous material contained therein.
  • fibrous material used which can be a primary fibrous material such as a chemical pulp, mechanical pulp or semi-chemical pulp, and/or a secondary fibrous material such as a fibrous material obtained from waste paper, is that it is a natural, environmentally friendly is a harmless material that is easily recyclable and already has low heat conduction and therefore good thermal insulation properties.
  • the design of the fibrous material used leads to an advantageous softness and volume, which ensure that the packaged goods can be safely stored and transported in the thermal container.
  • the thermal container according to the invention can be easily stacked, but can also be used as a shopping bag.
  • the individual layers of the creped fibrous material preferably have a crepe factor of at least 40%, in a special embodiment of 44%.
  • the latter crepe factor corresponds to an elongation of 80%.
  • the at least one bag in the present invention is made of a fleece made of thermoplastic material, it offers good moisture protection for the fibrous material inside, which has good absorbency. This is particularly the case when the web is a spunbonded polypropylene web.
  • the at least one bag encases the fibrous material in the manner of a tube.
  • the at least one bag of the back cushion and the at least one bag of the front cushion are made of paper.
  • the entire thermal container consists of ecologically recyclable material, namely paper and fibrous material.
  • the thermal container according to the invention is particularly ecologically valuable if the creped fibrous material is made from cellulose wadding that is made from at least 90% recycled waste paper with waste paper qualities in accordance with DIN EN 643.
  • slipping of the fibrous material within the bag or compartment can be prevented if the at least one bag is fixed to the fibrous material with lines of adhesive that are spaced apart from one another.
  • Synthetic hot-melt adhesive for example, can be used as the adhesive here. This can be applied in thin lines which, for example, have a spacing of 15 to 30 mm, preferably 20 mm.
  • the back cushion has a back cushion section that protrudes over the front cushion on one side or a closure flap is attached to the back cushion on one side, with the protruding back cushion section or the closure flap being able to be folded onto a surface of the front cushion to close the cavity of the thermal container and with can be connected directly or indirectly to it.
  • the protruding back cushion section or the closure flap are preferably made of the same material as the material of the at least one bag.
  • the at least one bag with the fibrous material introduced therein is preferably separated from a bag band having a plurality of such bags, and the protruding back cushion section or the closure flap is made of fleece made of thermoplastic material, which protrudes beyond a bag section containing the fibrous material.
  • the thermal container according to the invention can be used particularly well as a cool bag if at least one carrying handle and/or at least one closure means for closing the cavity is provided on the thermal container.
  • the side edges of the thermal container according to the invention are particularly stable when the back cushion and the front cushion on the opposite Side edges of the thermal container sewn together and / or glued and / or pinched.
  • FIG 1 shows schematically a possible embodiment of a thermal container 1 according to the invention in a plan view.
  • the thermal container 1 is a cooling bag for transport purposes.
  • a cool bag can, for example, have an outside width of 300 to 600 mm and an outside length of 300 to 600 mm.
  • the closure flap of the cool bag can have a length of 50 to 120 mm. Of course, other dimensions are also possible.
  • the thermal container 1 can also be used to keep objects warm.
  • thermal container 1 is off figure 1 shown open with a packaged item 15 placed therein in a plan view.
  • the thermal container 1 has a flat back cushion 2 and a flat front cushion 3 .
  • the back cushion 2 is connected to the front cushion 3 at opposite side edges 4, 5 of the thermos. In the illustrated embodiment, this connection is realized by seams 16, 17 running along the side edges 4, 5.
  • this connection can be made alone or in combination with the seams 16, 17 by gluing and/or squeezing the material.
  • the back cushion 2 and the front cushion 3 are formed from the same web of material designed in the form of a bag band.
  • the back cushion 2 is therefore formed in one piece with the front cushion 3 on another side edge 6 of the thermal container 1, so the material of the back cushion 2 merges directly into the material of the front cushion 3 at the side edge 6, which can form the bottom edge of a bag, for example.
  • the back cushion 2 and the front cushion 3 can also be formed separately and connected to one another at the side edge 6 . Furthermore, it is possible that in other embodiments of the present invention at least one piece of material is provided on the side edges 4, 5 and/or 6 between the back cushion 2 and the front cushion 3 and is connected to them.
  • the piece of material can, for example, be in the form of a strip or web.
  • a cavity 7 is formed between the back cushion 2 and the front cushion 3, into which, as in FIG figure 2 to see the packaged goods 15 being introduced.
  • the illustrated embodiment has the back cushion 2 on one side over the front cushion 3 protruding back cushion section 21.
  • a closure flap can also be attached to the back cushion 2 on one side.
  • the protruding back cushion section 21 or the locking tab, as indicated by arrow A in figure 2 is indicated schematically folded to close the cavity 7 on a surface of the front cushion 3 and directly or indirectly connected to it.
  • the overhanging back cushion section 21 or the closure flap can be glued to the front cushion 3 by means of adhesive lines.
  • adhesive nubs can be used for this.
  • the back cushion 2 and the front cushion 3 each have a bag 8 .
  • the bag 8 encloses a fibrous material 9 like a hose.
  • the bag 8 is formed around the fibrous material 9 over its entire circumference.
  • the fibrous material 9 is used, which in figure 3 is shown schematically in a side view that is not true to scale.
  • the fibrous material 9 consists of a stack of a large number of individual layers 91 of creped fibrous material lying flat on top of one another.
  • the special feature of the creped fiber used here is that it is so-called high crepe.
  • the creped fibrous material used therefore has a particularly high crepe height d of ⁇ 0.3 mm per individual layer 91 .
  • the crepe height d is even greater, such as ⁇ 0.5 mm or even ⁇ 0.65 mm.
  • the crepe height d of 0.65 mm leads to an elongation of 80% for the material used, which is cellulose wadding in the exemplary embodiment shown, which in turn corresponds to a crepe factor of 44%.
  • the basis weight of the creped fiber used is 23 grams per square meter.
  • the creped pulp was made in the following manner: Recycled cellulose wadding made from selected waste paper qualities according to DIN EN 643 was used as the basic material.
  • the recycled cellulose wadding was creped on a Yankee cylinder using a ceramic-coated steel scraper.
  • the adhesion of the cellulose fibers to the cylinder surface, the geometry of the scraper and the angle of attack of the scraper and the take-off angle of the creped cellulose wadding web are specially adjusted.
  • the elongation or the crepe factor is produced accordingly by the difference in speed between the Yankee cylinder and the reel.
  • the individual layers 91 are doubled, for example, to form a stack with 24, 28 or 32 individual layers 91 . This is preferably done on a laying machine.
  • the individual layers 91 typically lie on top of one another in the same layer production direction. However, since the creping is never exactly on top of one another, the stacking of the individual layers 91 on top of one another results in a correspondingly high stack height and at the same time a high stack volume.
  • the stack height can be, for example, about 15 mm for 24 individual layers 91, about 20 mm for 28 individual layers 91 and about 25 mm for 32 individual layers 91.
  • the created stack is cut into the desired width depending on the size of the back cushion 2 and the front cushion 3.
  • the cellulosic wadding is then wrapped with the bag 8 .
  • the embodiment shown consists of the bag 8 made of a polypropylene spunbonded nonwoven, with which the stack of the individual layers 91 is encased like a tube.
  • the polypropylene spun-bonded fleece ensures that the individual layers 91 are held together and, on the other hand, protection against moisture, for example against condensation.
  • the bag 8 is attached to the creped fibrous material 9 as shown in FIG figure 1 shown schematically by means of spaced lines 13 of hot melt adhesive.
  • these lines are spaced about 20 mm apart and run along the web of material from which the back cushion 2 and the front cushion 3 are formed.
  • this web of material has areas filled with the fibrous material 9 and adjoining pure fleece areas.
  • a non-woven area, which adjoins a back cushion section of the material band, can then be used as a closure flap for closing the thermal container 1 .
  • a fleece overhang over the areas filled with the fibrous material 9 can be approximately 50 mm.
  • the web is severed transversely to the direction in which it runs.
  • figure 4 shows schematically another thermal container 1 'in a perspective side view.
  • the thermal container 1' has an outer paper bag 11 and an inner paper bag 12 located in the outer paper bag 11. Fibrous material 9, which is constructed as described above, is introduced between the inner paper bag 12 and the outer paper bag 11 on at least two opposite sides of the thermal container 1'.
  • the inner paper bag 12 and the outer paper bag 11 can be connected to one another, including the respective fibrous material 9 .
  • Carrying handles 14 are provided on an upper side of the thermal container 1'.
  • suitable closure means can be provided on the insulated container 1'.
  • the thermal container 1 ′ can have a block base 19 , but it can also be designed without the block base 19 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Table Devices Or Equipment (AREA)
EP20174907.4A 2019-08-07 2020-05-15 Thermobehältnis Active EP3772472B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21188272.5A EP3922574A1 (de) 2019-08-07 2020-05-15 Thermobehältnis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202019104350.4U DE202019104350U1 (de) 2019-08-07 2019-08-07 Thermobehältnis

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP21188272.5A Division EP3922574A1 (de) 2019-08-07 2020-05-15 Thermobehältnis
EP21188272.5A Division-Into EP3922574A1 (de) 2019-08-07 2020-05-15 Thermobehältnis

Publications (3)

Publication Number Publication Date
EP3772472A1 EP3772472A1 (de) 2021-02-10
EP3772472B1 true EP3772472B1 (de) 2023-06-07
EP3772472C0 EP3772472C0 (de) 2023-06-07

Family

ID=70738341

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20174907.4A Active EP3772472B1 (de) 2019-08-07 2020-05-15 Thermobehältnis
EP21188272.5A Pending EP3922574A1 (de) 2019-08-07 2020-05-15 Thermobehältnis

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21188272.5A Pending EP3922574A1 (de) 2019-08-07 2020-05-15 Thermobehältnis

Country Status (4)

Country Link
EP (2) EP3772472B1 (es)
DE (1) DE202019104350U1 (es)
ES (1) ES2954258T3 (es)
PL (1) PL3772472T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020106559U1 (de) 2020-11-16 2022-02-18 profümed Karlheinz Lohr e. K. Inhaber: Georg Scheffer Thermobehältnis
WO2022245561A1 (en) * 2021-05-20 2022-11-24 Coldkeepers, Llc Repulpable insulating liners, shipping and storage container therewith and methods of making and using thereof
DE102021120900B4 (de) 2021-08-11 2024-01-25 profümed Karlheinz Lohr e. K. Inhaber: Georg Scheffer Thermobehältnis
DE102022104084A1 (de) * 2022-02-22 2023-08-24 Andreas Ramthun Verwendung von mindestens einlagiger Zellstoffwatte zur Herstellung von umgeformten Produkten

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019113453A1 (en) * 2017-12-08 2019-06-13 Ranpak Corp. Insulated package and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7836403U1 (de) * 1978-12-08 1979-03-08 Goetze Nord West Papierwerk Transportverpackung
DE9002034U1 (es) * 1990-02-21 1990-04-26 Fabritz, Gerhard, 4150 Krefeld, De
US7019271B2 (en) 2002-02-08 2006-03-28 Graphic Packaging International, Inc. Insulating microwave interactive packaging
US20050118366A1 (en) * 2003-06-25 2005-06-02 Piemonte Robert B. Barrier materials and containers made therefrom
US8251277B2 (en) * 2005-04-15 2012-08-28 Wausau Paper Mills, Llc Thermal sleeve, method for manufacturing a thermal sleeve, and combination cup and thermal sleeve
DE102005021187A1 (de) * 2005-05-03 2006-11-16 Radl, Bernd, Dr. Alcopop-Umverpackung
US8063344B2 (en) 2006-04-27 2011-11-22 Graphic Packaging International, Inc. Microwave energy interactive food package
DE202016100510U1 (de) * 2016-02-02 2016-02-11 Nordpack Gmbh Isolierverpackung und die Isolierverpackung beinhaltende Umverpackung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019113453A1 (en) * 2017-12-08 2019-06-13 Ranpak Corp. Insulated package and method

Also Published As

Publication number Publication date
DE202019104350U1 (de) 2020-11-10
ES2954258T3 (es) 2023-11-21
PL3772472T3 (pl) 2023-08-07
EP3922574A1 (de) 2021-12-15
EP3772472C0 (de) 2023-06-07
EP3772472A1 (de) 2021-02-10

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