EP3772472A1 - Récipient thermique - Google Patents

Récipient thermique Download PDF

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Publication number
EP3772472A1
EP3772472A1 EP20174907.4A EP20174907A EP3772472A1 EP 3772472 A1 EP3772472 A1 EP 3772472A1 EP 20174907 A EP20174907 A EP 20174907A EP 3772472 A1 EP3772472 A1 EP 3772472A1
Authority
EP
European Patent Office
Prior art keywords
bag
thermal container
back cushion
container according
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.)
Granted
Application number
EP20174907.4A
Other languages
German (de)
English (en)
Other versions
EP3772472B1 (fr
EP3772472C0 (fr
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/fr
Publication of EP3772472A1 publication Critical patent/EP3772472A1/fr
Application granted granted Critical
Publication of EP3772472B1 publication Critical patent/EP3772472B1/fr
Publication of EP3772472C0 publication Critical patent/EP3772472C0/fr
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 thermal container which has at least one flat back cushion and a flat front cushion extending in another plane above the back cushion, which are connected to one another at opposite side edges and at a further side edge of the thermal container, are formed 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, the back cushion and the front cushion each being formed from at least one bag or at least one compartment and a fibrous material located in the at least one bag or the at least one compartment.
  • Thermal containers of this type are used to maintain the temperature of a packaged item introduced into the cavity for a certain period of time.
  • the cooling or heating of the respective packaged goods placed therein can thus be maintained over a certain time in a certain 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.
  • thermal containers In recent years, plastics have often been used to manufacture thermal containers. From an ecological point of view, this is no longer justifiable. If natural substances were used to form thermal containers, the temperature duration was usually very limited.
  • a thermal container which has at least one flat back cushion and a flat front cushion extending in another plane above the back cushion, on opposite side edges and on another Side edge of the thermal container are connected to one another, are integrally formed or merge into one another via a connecting piece, so that a cavity is formed between the back cushion and the front cushion, the back cushion and the front cushion each consisting of at least one bag or at least one compartment and one in the at least one bag or the at least one compartment located fibrous material are formed, in which the fibrous material is a stack of a large number of individual layers of creped fiber material lying on top of one another, each of the individual layers having a creping height of ⁇ 0.3 mm, and / or the fibrous material has fibrous flakes or fibrous powder which are applied to a flat carrier made of fibrous material or are introduced between two flat carriers made of fibrous material.
  • 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 introduced into the cavity formed between the back cushion and the front cushion connected to it.
  • the cavity can then be suitably closed.
  • the fibrous material of the back cushion and the front cushion guarantees a particularly advantageous thermal insulation of the at least one object brought into the thermal container from the environment. Due to its structure, the fibrous material has a large number of air pockets or air gaps, as a result of which the respective temperature can be maintained particularly well. With the present invention it is even possible, for example, to maintain a cooling of a packaged item introduced into the thermal container for up to 72 hours in a desired temperature window.
  • each of the individual layers has a multitude of mountains and valleys, with air collecting in the valleys. Since the creping from individual layer to individual layer is never identical and the individual layers are not stacked on top of one another or pressed into one another, the valleys of the above fit lying individual layer does not or not completely into the valleys of the respective underlying individual layer, so that an air gap is retained in each case.
  • the special feature of the present invention is that 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 of 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 on top of one another, which leads to a particularly high temperature holding capacity of the thermal container formed therewith.
  • the fiber material has fiber flakes or fiber powder, which are applied to a flat carrier made of fiber material or are introduced between two flat carriers made of fiber material. There is a lot of air between the fiber flakes or the particles of the fiber powder, which is used for thermal insulation.
  • Both variants have in common that the respective fibrous material does not slip, on the one hand due to the large number of individual layers lying on top of one another and on the other hand due to the use of at least one flat carrier and its respective introduction into the bag or compartment.
  • the bag or the compartment form a cover 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 used as a plurality of individual layers lying one above the other. These individual layers are relined and cut to the desired width depending on the size of the pillow.
  • the bag or the compartment also have a protective function for the fibrous material contained therein.
  • pulp material used which can be a primary pulp, such as cellulose, wood pulp or semi-pulp, and / or a secondary pulp, such as pulp obtained from waste paper, is that it is natural and environmentally safe Is a material that is easily recyclable and already has a low heat conduction and thus good thermal insulation properties.
  • the design of the fibrous material used leads to an advantageous softness and voluminosity, which ensure that the packaged goods can be safely stored and transported in the thermal container.
  • the thermal container according to the invention is easy to stack, but can also be used as a shopping bag.
  • the individual layers of the creped fiber material preferably have a creping factor of at least 40%, in a particular embodiment of 44%.
  • the latter creping factor corresponds to an elongation of 80%.
  • the fiber flakes or the fiber powder with at least one binder are applied to the flat carrier made of fiber material or are introduced between the two flat carriers made of fiber material.
  • the fiber flakes or the fiber powder which can be sprayed onto one carrier or between the two carriers, for example, can be fixed well in their respective position on the carrier or between the carriers.
  • the flat carrier or carriers are made from paper.
  • paper is easy to recycle and, on the other hand, creates a stable, yet within certain limits flexible support for the fiber flakes or fiber powder.
  • the at least one bag in the present invention is formed from a fleece made of thermoplastic material, it offers good moisture protection for the fibrous material lying therein, which has good absorbency. This is particularly the case when the nonwoven is a polypropylene spunbond.
  • the at least one bag envelops the fibrous material like a hose.
  • the at least one bag or the at least one compartment of the back cushion and the at least one bag or the at least one compartment of the front cushion are made of paper.
  • the entire thermal container is made of ecologically recyclable material, namely paper and fiber material.
  • the at least one bag or the at least one compartment of the back cushion and the at least one bag or the at least one compartment of the front cushion are formed by an inner paper bag placed in an outer paper bag, each of which the fibrous material is located between an outside of the inner paper bag and an inside of the outer paper bag.
  • the inner paper bag is thus inserted into the outer paper bag and the fibrous material between the material of the inner paper bag and the material of the outer paper bag is inserted at least on the front and the back of this embodiment of the thermal container according to the invention.
  • the respective packaged goods which are typically to be kept cool, can then be placed in the inner paper bag.
  • the inner paper bag and the outer paper bag are connected to one another, including the fibrous material.
  • the internal fibrous material cannot slip out of the space between the outer paper bag and the inner paper bag.
  • the thermal container according to the invention is particularly ecologically valuable if the creped fibrous material is made from cellulose wadding, at least 90% of which is made from 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 or the at least one compartment is fixed to the fibrous material with adhesive lines spaced apart from one another.
  • Synthetic hot-melt adhesive for example, can be used as the adhesive. This can be applied in thin lines, for example at a distance of 15 to 30 mm, preferably 20 mm.
  • the back cushion has a back cushion section protruding on one side over the front cushion or a closure flap adjoins the back cushion on one side, the protruding back cushion section or the closure flap for closing the cavity of the thermal container being foldable onto a surface of the front cushion and with this can be connected directly or indirectly.
  • the protruding back cushion section or the closure flap are preferably formed from 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 tape having a plurality of such bags, and the protruding back cushion section or the closure flap is made of a nonwoven made of thermoplastic material that protrudes beyond a bag section containing the fibrous material .
  • the thermal container according to the invention can be used particularly well as a cooling bag if at least one carrying handle and / or at least one closure means is provided on the thermal container for closing the cavity.
  • the side edges of the thermal container according to the invention are particularly stable when the back cushion and the front cushion are sewn and / or glued and / or squeezed together on the opposite side edges of the thermal container.
  • 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 cool bag for transport purposes.
  • a cooling bag can, for example, have an external width of 300 to 600 mm and an external length of 300 to 600 mm.
  • the closing flap of the cooling bag can have a length of 50 to 120 mm. Of course, other dimensions are also possible.
  • the thermal container 1 can, however, also be used to keep objects warm.
  • thermal container 1 is off Figure 1 shown opened with a packaged item 15 introduced therein in a top view.
  • the thermal container 1 has a flat back cushion 2 and a flat front cushion 3.
  • the back cushion 2 is opposite to each other with the front cushion 3
  • 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 material web in the form of a bag tape.
  • the back cushion 2 is therefore formed in one piece with the front cushion 3 on a further 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, for example, form a pocket lower edge.
  • 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 designed in the manner of a strip or a 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 item 15 is introduced.
  • the back cushion 2 has a back cushion section 21 protruding on one side beyond the front cushion 3.
  • a closure tab can also be attached to one side of the back cushion 2.
  • the protruding back cushion section 21 or the locking flap are, as indicated by the arrow A in Figure 2 is indicated schematically, to close the cavity 7 folded onto a surface of the front cushion 3 and connected to it directly or indirectly.
  • the protruding back cushion section 21 or the closure strap can be glued to the front cushion 3 by means of lines of adhesive.
  • adhesive knobs can be used for this.
  • the back cushion 2 and the front cushion 3 each have a bag 8.
  • the bag encloses a fibrous material 9 like a tube.
  • at least one compartment 18 can be provided in which the fibrous material 9 is located.
  • the compartment 18 is not completely formed around the fibrous material 9, but can be closed in advantageous variants of the invention.
  • 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 specialty of the creped fiber used here is that it is so-called high crepe.
  • the creped fiber material used therefore has a particularly high crepe height d of 0.3 mm per individual layer 91.
  • the creping height d is even greater, for example 0.5 mm or even 0.65 mm.
  • the creping height d of 0.65 mm leads to an elongation of 80%, which in turn corresponds to a creping factor of 44%.
  • the mass per unit area of the creped fiber material used is 23 grams per square meter.
  • the creped pulp was produced in the following way: Recycled cellulose wadding from selected grades of waste paper in accordance with DIN EN 643 was used as the base 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 incidence of the scraper and the removal angle of the creped cellulose wadding web are specially adjusted.
  • the stretching or creping factor is produced by the difference in speed between the Yankee cylinder and the roll-up.
  • the individual layers 91 are doubled into a stack with 24, 28 or 32 individual layers 91, for example. This is preferably done on a laying machine.
  • the individual layers 91 typically lie one on top of the other in the same layer generation direction. However, since the creping never lies exactly on top of one another, the superposition of the individual layers 91 results in a correspondingly high stack height and at the same time a high stack volume.
  • the stack height can, for example, be approximately 15 mm with 24 individual layers 91, approximately 20 mm with 28 individual layers 91 and approximately 25 mm with 32 individual layers 91.
  • the stack produced is then cut to the desired width depending on the size of the back cushion 2 and the front cushion 3.
  • the cellulose wadding is then wrapped with the bag 8.
  • the bag 8 consists of a polypropylene spunbond, with which the stack of the individual layers 91 is enveloped like a hose.
  • the polypropylene spunbond ensures, on the one hand, the cohesion of the individual layers 91 and, on the other hand, protection against moisture, for example against condensation.
  • FIG Figure 1 shown schematically, with the aid of spaced-apart lines 13 of hot melt adhesive.
  • these lines are approximately 20 mm apart and run along the web of material from which the back cushion 2 and the front cushion 3 are formed.
  • this material web has areas filled with the fibrous material 9 and adjoining pure fleece areas.
  • a fleece area which adjoins a back cushion section of the material strip, can then be used as a closing flap for closing the thermal container 1.
  • a fleece overhang over the areas filled with the fibrous material 9 can be approximately 50 mm.
  • fibrous material 9 shown schematically can also be the in Figure 4 Fibrous material 9 'shown schematically in a side view that is not true to scale can be used in the above-described and further embodiments of the invention.
  • the fibrous material 9 ' is also located in a bag 8, which can be designed as described above.
  • the fibrous material 9 has fibrous flakes 92 or fibrous powder, which is applied to a flat carrier 93 made of fibrous material or, as in FIG Figure 4 shown, introduced between two flat supports 93, 94 made of fiber material are.
  • the fiber flakes are preferably cellulose flakes, and the fiber powder is preferably cellulose powder.
  • binder can be applied to the carrier 93 or inserted between the two carriers 93, 94.
  • the flat supports 93, 94 are made from paper.
  • Figure 5 shows schematically another embodiment of a thermal container 1 'according to the invention 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.
  • fiber material 9 which is constructed as described above, is introduced between the inner paper bag 12 and the outer paper bag 11.
  • the fibrous material 9 instead of the fibrous material 9 or in addition to the fibrous material 9, the fibrous material 9 'described above can also be used.
  • the inner paper bag 12 and the outer paper bag 11 can be connected to one another, including the respective fibrous material 9, 9 '.
  • Carrying handles 14 are provided on an upper side of the thermal container 1 '.
  • thermal container 1 ' can be provided on the thermal container 1 '.
  • the thermal container 1 ′ can, as shown, have a block bottom 19, but can also be designed without the block bottom 19.

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

Priority Applications (1)

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

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-Into EP3922574A1 (fr) 2019-08-07 2020-05-15 Récipient thermique
EP21188272.5A Division EP3922574A1 (fr) 2019-08-07 2020-05-15 Récipient thermique

Publications (3)

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

Family

ID=70738341

Family Applications (2)

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

Family Applications After (1)

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

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4134329A1 (fr) 2021-08-11 2023-02-15 Profümed Karlheinz Lohr e. K. Récipient thermique

Families Citing this family (3)

* 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 (fr) * 2021-05-20 2022-11-24 Coldkeepers, Llc Revêtements isolants repulpables, contenants d'expédition et de stockage les comprenant, et procédés pour les fabriquer et les utiliser
DE102022104084A1 (de) * 2022-02-22 2023-08-24 Andreas Ramthun Verwendung von mindestens einlagiger Zellstoffwatte zur Herstellung von umgeformten Produkten

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DE102005021187A1 (de) * 2005-05-03 2006-11-16 Radl, Bernd, Dr. Alcopop-Umverpackung
US20070251942A1 (en) * 2006-04-27 2007-11-01 Cole Lorin R Microwave energy interactive food package

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DE7836403U1 (de) * 1978-12-08 1979-03-08 Goetze Nord West Papierwerk Transportverpackung
WO2003066435A2 (fr) * 2002-02-08 2003-08-14 Graphic Packaging International, Inc. Emballage isolant reagissant aux micro-ondes
DE102005021187A1 (de) * 2005-05-03 2006-11-16 Radl, Bernd, Dr. Alcopop-Umverpackung
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4134329A1 (fr) 2021-08-11 2023-02-15 Profümed Karlheinz Lohr e. K. Récipient thermique
DE102021120900A1 (de) 2021-08-11 2023-02-16 profümed Karlheinz Lohr e. K. Inhaber: Georg Scheffer Thermobehältnis
DE102021120900B4 (de) 2021-08-11 2024-01-25 profümed Karlheinz Lohr e. K. Inhaber: Georg Scheffer Thermobehältnis

Also Published As

Publication number Publication date
ES2954258T3 (es) 2023-11-21
DE202019104350U1 (de) 2020-11-10
EP3772472B1 (fr) 2023-06-07
EP3772472C0 (fr) 2023-06-07
EP3922574A1 (fr) 2021-12-15
PL3772472T3 (pl) 2023-08-07

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