EP4134329B1 - Thermal container - Google Patents

Thermal container Download PDF

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Publication number
EP4134329B1
EP4134329B1 EP22182890.8A EP22182890A EP4134329B1 EP 4134329 B1 EP4134329 B1 EP 4134329B1 EP 22182890 A EP22182890 A EP 22182890A EP 4134329 B1 EP4134329 B1 EP 4134329B1
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EP
European Patent Office
Prior art keywords
paper
thermal container
bag
hemp
fibrous material
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EP22182890.8A
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German (de)
French (fr)
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EP4134329C0 (en
EP4134329A1 (en
Inventor
Georg Scheffer
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Profuemed Karlheinz Lohr E K
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Profuemed Karlheinz Lohr E K
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Publication of EP4134329A1 publication Critical patent/EP4134329A1/en
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Publication of EP4134329C0 publication Critical patent/EP4134329C0/en
Publication of EP4134329B1 publication Critical patent/EP4134329B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D81/00Containers, 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
    • B65D81/38Containers, 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
    • B65D81/3888Containers, 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
    • B65D81/3897Containers, 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 on opposite side edges and on 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, wherein the fibrous material has a stack of a plurality of individual layers of creped fibrous material lying one above the other.
  • the well-known thermal container has the advantage that it can be recycled in an ecologically safe manner due to the fibrous material predominantly used for this purpose.
  • the publication DE 20 2019 003 407 U1 describes packaging made of corrugated cardboard for holding and/or transporting temperature-sensitive products.
  • the corrugated cardboard is folded into a cuboid-shaped cardboard box, the side walls of the cardboard box each being formed by two spaced-apart walls, between which a thermal insulating material is accommodated.
  • the thermal insulating material can be, for example, a tubular bag containing shredded paper.
  • Such a thermal container is used to maintain the temperature of a packaged item placed in the box over a certain period of time.
  • the thermal container allows the cooling of the packaged goods placed therein, such as foods to be kept cool, medicines or blood supplies, to be maintained over a specific time in a specific temperature window.
  • the known thermal container is relatively complex to produce.
  • the size and shape of the tubular bag must be precisely adapted to the cuboid interior formed between the walls of the side walls and the tubular bag must then be fastened on the inside with an adhesive. This is difficult because the paper scraps slip in the tubular bag.
  • the walls of the side walls must be relatively close to one another. Accordingly, only a limited amount of paper shreds can be accommodated between the walls, so that the thermal insulation effect of the cardboard side walls filled with the paper shreds is only slightly higher than that of conventional cardboard side walls.
  • 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 on opposite side edges and on 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, wherein the back cushion and the front cushion are each 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, the fibrous material having a stack of a plurality of individual layers of creped fibrous material lying one above the other, solved, wherein the fibrous material further has at least one non-separately wrapped tangled layer of loose paper shreds and/or hemp shreds arranged between two of the individual layers, which are formed from disordered fibers and whose crepe height is in each case ⁇ 0.3 mm and ⁇ 1 mm .
  • the thermal container according to the invention is particularly 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 thereto.
  • the cavity can then be suitably closed.
  • the creped individual fiber layers of the back cushion and the front cushion in themselves bring about a particularly advantageous thermal insulation of the at least one object placed in the thermal container from the environment. This is achieved in particular by the air pockets or air spaces formed between the individual layers of creped fiber material lying one above the other. Due to the creping of the individual layers, each of the individual layers has a number of mountains and valleys, with air collecting in the valleys. Since the creping is never identical from individual layer to individual layer and the individual layers are not stacked on top of each other or pressed into each other with precision, the valleys of the individual layer above do not fit into the valleys of the individual layer below, or do not fit completely into the valleys of the individual layer below, so that In any case an air gap is maintained.
  • a random layer of paper shreds and/or hemp shreds i.e. a layer of disordered paper shreds and/or hemp shreds, is arranged at least between two of the creped individual layers.
  • the paper shreds are individual paper elements that are not connected to one another to form a closed layer, or the hemp shreds are individual paper elements, not to each other are hemp elements connected to a closed layer, for example in the side walls of the document DE 20 2019 003 407 U1 If the thermal container described slips, and which in the present invention are not held together separately by a bag or the like, the paper shreds and/or the hemp shreds surprisingly remain largely in their respective positions between the individual layers in the present invention.
  • the paper and/or hemp scraps are disordered, i.e. H. they have a wide variety of orientations within the confusion. They can therefore lie on top of each other and/or form balls and/or cantilever out in the direction of the adjacent creped individual layer.
  • each of the individual layers preferably 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.
  • either 4 or 8 of the creped individual layers are stacked on top of each other without interlayered paper and/or hemp shreds, i.e. stacks of 4 or 8 are formed, with a layer of the paper between each two of the stacks of 4 or 8. and/or hemp snippets is arranged.
  • the thermal container has 16 creped individual layers with one or three layers of paper and/or hemp shreds.
  • the bag or compartment also has a protective function for the fibrous material contained therein.
  • the fibrous material used in the present invention for both the creped individual layers and for the paper shreds which can be a primary fibrous material, such as a pulp, a wood pulp or a semi-pulp, and / or a secondary fibrous material, such as a fibrous material obtained from waste paper, as well as the Hemp used for the hemp snippets has the advantage that it is a natural material that is harmless to the environment, is easily recyclable and in itself has low heat conduction and therefore good thermal insulation properties.
  • At least the two individual layers that lie on both sides of the respective layer of paper and/or hemp shreds are different from paper or those in the publication DE 20 2019 003 407 U1 used corrugated cardboard, made of disordered fibers. These individual layers, which are also creped, therefore have a higher surface roughness than paper or corrugated cardboard and therefore hold the paper and/or hemp shreds particularly well.
  • the design of the fibrous material used leads to an advantageous softness and voluminousness, 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.
  • a coefficient of static friction existing between one of the individual layers and a layer of the paper from which the paper shreds are formed is at least a factor of 1.1, preferably at least by a factor of 1.25, particularly preferably at least by a factor of 1.34, greater than the coefficient of static friction that exists between two layers of the paper from which the paper shreds are formed.
  • the paper scraps stick particularly well to the creped individual layers and therefore hardly slip.
  • the paper scraps stick better to the creped individual layers than they do to cardboard, for example, as in the printed publication DE 20 2019 003 407 U1 used to form the side walls of the packaging would adhere.
  • the paper shreds adhere better to the creped individual layers than they do to the tubular bag made of polyethylene film into which they are placed in the publication DE 20 2019 003 407 U1 were introduced, would be liable.
  • the coefficient of static friction between a layer of the paper from which the paper shreds are formed and one of the creped individual layers used in the present invention is at least a factor of 1.9 greater than the coefficient of static friction between a layer of paper , from which the paper scraps are formed, and that in the publication DE 20 2019 003 407 U1 polyethylene film used.
  • the coefficient of static friction between two layers of the paper from which the paper shreds used in the present invention are formed is on average 0.4, under the same measurement conditions the coefficient of static friction in the present invention is between one layer the paper from which the paper shreds are formed, and one of the creped individual layers at least 0.5, preferably at 0.55 and particularly preferably above 0.6.
  • the individual layers of the creped fiber material have a creping factor of at least 40%, in a special embodiment of 44%.
  • the latter creping 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 lying therein, which has good absorbency. This is particularly the case if the fleece is a polypropylene spunbond.
  • the at least one bag encloses the fibrous material in a tube-like manner.
  • the side edges of at least one bag can also be sewn.
  • the at least one bag or the at least one compartment of the back cushion as well as the at least one bag or the at least one compartment of the front cushion are made of paper. This means that 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 as well as the at least one bag or the at least one compartment of the front cushion are formed by an inner paper bag inserted into an outer paper bag, in each case 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 therefore inserted into the outer paper bag and at least on the front and back of this embodiment of the thermal container according to the invention, the fibrous material is inserted between the material of the inner paper bag and the material of the outer paper bag.
  • the respective packaged goods that typically need 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. This means that the internal fibrous material cannot slip out of the space between the outer paper bag and the inner paper bag. This also means there is no risk of the packaged goods slipping into 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 fiber material is made from cellulose wadding, which is made from at least 90% recycled waste paper with waste paper qualities in accordance with DIN EN 643.
  • the paper shreds are made from shredded or chopped paper or the hemp shreds are made from shredded or chopped hemp.
  • shredded paper can be usefully reused for data protection reasons.
  • the dimensions of paper shredded with conventional shredders are optimal in order to achieve good temperature retention in the thermal container according to the invention.
  • the paper and/or hemp shreds have a width that is in a range of 0.5 cm to 1 cm.
  • the length of the paper and/or hemp shreds can be the same or different.
  • the paper and/or hemp shreds can be up to 4 cm long or even longer. The longer the paper and/or hemp shreds, the better thermal properties the thermal container according to the invention has.
  • Figure 1 shows schematically a possible embodiment of a thermal container 1 according to the invention in a top view.
  • the thermal container 1 is a cool bag for transport purposes.
  • a cool bag can, for example, have an external width of 300 to 600 mm and an external length of 300 to 600 mm.
  • the closure flap of the cool bag can be 50 to 120 mm long. 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 opened with a packaged goods 15 placed therein shown 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 connected to the front cushion 3 on opposite side edges 4, 5 of the thermal container 1. In the exemplary embodiment shown, 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 material web in the form of a bag band. Therefore, the back cushion 2 is formed in one piece with the front cushion 3 on a further side edge 6 of the thermal container 1. The material of the back cushion 2 therefore merges directly into the material of the front cushion 3 at the side edge 6, which can, for example, form a lower edge of the pocket.
  • the back cushion 2 and the front cushion 3 can also be designed 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 associated with these.
  • the piece of material can, for example, be designed like a strip or web.
  • a cavity 7 is formed between the back cushion 2 and the front cushion 3, in which, as shown in Figure 2 it can be seen that the packaged goods 15 are introduced.
  • the back cushion 2 has a back cushion section 21 which protrudes on one side over the front cushion 3.
  • a closure tab can also be connected to the back cushion 2 on one side.
  • the protruding back cushion section 21 or the closure tab is 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 tab can be glued to the front cushion 3 using adhesive lines.
  • adhesive knobs 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 in a tube-like manner.
  • at least one compartment 18 may 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.
  • Thermal container 1 uses fiber material 9, which is in Figure 3 is shown schematically in a sectional side view that is not true to scale.
  • the fibrous material 9 consists of a stack of a plurality of individual layers 91 made of creped fibrous material lying one above the other.
  • the special feature of the creped fiber material used here is that it is so-called high crepe.
  • the creped fiber material used therefore has a particularly high creping height d of ⁇ 0.3 mm, for example ⁇ 0.35 mm, per individual layer 91.
  • the creping height d is even greater, such as ⁇ 0.5 mm or even ⁇ 0.65 mm.
  • the crepe height d of 0.65 mm In the material used, which in the exemplary embodiment shown is cellulose wadding, leads to an elongation of 80%, which in turn corresponds to a creping factor of 44%.
  • High crepe is a very thin material that can also have holes.
  • the mass per unit area of the creped fiber material used is 23 grams per square meter, but may also be different in other embodiments of the invention.
  • the coefficient of static friction existing between one of the individual layers 91 and a layer of the paper from which the paper shreds 92 are formed is at least a factor of 1.34 greater than the coefficient of static friction between two layers of the paper the paper scraps 92 are formed.
  • a flat surface was used for the test measurements, which was checked using a spirit level.
  • test measurements (a) the base was covered with a layer of paper from which the paper scraps 92 are formed, in test measurements (b), it was covered with a polypropylene film, and in test measurements (c), it was covered with a layer of cardboard and in test measurements (d) each covered with one of the creped individual layers 91, here with high crepe.
  • a flat surface of a measuring body was covered with a layer of paper from which the paper shreds 92 are formed.
  • the dimensions of the measuring body made of beech wood are 10 cm x 10 cm x 1.8 cm.
  • the creped pulp was produced in the following manner: Recycled cellulose wadding from selected waste paper qualities 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 as well as the angle of attack of the scraper and the take-off angle of the creped cellulose wadding web are specially adjusted.
  • the elongation or creping factor is produced by the difference in speed between the Yankee cylinder and the reel.
  • the individual layers 91 are doubled, for example, into several stacks with 4 individual layers 91 each. This is preferably done on a planting machine.
  • the individual layers 91 typically lie one above the other in the same layer generation direction. However, since the creping is never exactly on top of each other, the stacking of the individual layers 91 creates a correspondingly high stack height and at the same time a high stack volume. In principle, however, it is also conceivable to place the individual layers on top of each other with an alternating orientation, so that the creping from individual layer 91 to individual layer 91 or the respective creping of the individual layers 91 crosses each other.
  • paper shreds 92 are scattered onto one of the stacks of individual layers 91 and another stack of individual layers 91 is placed on this layer of paper shreds.
  • This process can be repeated several times, so that the result is a stack of the creped individual layers 91 with at least one layer of paper shreds 92 arranged between two of the individual layers 91 '.
  • the creped individual layers 91' lying on both sides of the layer of paper shreds 92 which can have the same creping but also a different creping than the other individual layers 91, have a creping height d ⁇ 1 mm, preferably ⁇ 0.6 mm, in certain cases of ⁇ 0.4 mm.
  • the stack created in this way can then be cut into the desired width, depending on the size of the back cushion 2 and the front cushion 3.
  • the stack is then wrapped in the bag 8.
  • the bag 8 consists of a polypropylene spunbond, with which the stack of the individual layers 91 and the paper shreds 92 is covered in a tube-like manner.
  • the polypropylene spunbond ensures the cohesion of the individual layers 91, 91' and the paper shreds 92.
  • the proportion of the bag 8 in the total weight of the thermal container 1 is preferably a maximum of 4% by weight. According to Section 16 Paragraph 3 VerpackG, the thermal container 1 can be fully counted towards the paper quota. This results in cost savings in disposal.
  • the bag 8 can be attached to the creped fibrous material 9 on the outside of the stack, as in Figure 1 shown schematically, with the help of spaced apart lines 13 made of hot melt adhesive.
  • these lines are at a distance of approximately 20 mm and run along the material web 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. Then a fleece area that adjoins a back cushion section of the material band can be used as a closure tab for closing the thermal container 1.
  • a fleece overhang over the areas filled with the fibrous material 9 can be approx. 50 mm.
  • Figure 4 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 11. On at least two opposite sides of the thermal container 1 ', fibrous material 9 is inserted between the inner paper bag 12 and the outer paper bag 11, which is constructed as described above.
  • the inner paper bag 12 and the outer paper bag 11 are connected to one another, including the 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 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.
  • hemp shreds can be used instead of the paper shreds 92 or in addition to the paper shreds 92.

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Description

Die vorliegende Erfindung betrifft ein Thermobehältnis, das wenigstens ein flächiges Rückenkissen und ein sich in einer anderen Ebene über dem Rückenkissen erstreckendes, flächiges Vorderkissen, die an gegenüber liegenden Seitenrändern sowie an einem weiteren Seitenrand des Thermobehältnisses miteinander verbunden sind, einstückig ausgebildet sind oder über ein Verbindungsstück ineinander übergehen, aufweist, sodass zwischen dem Rückenkissen und dem Vorderkissen ein Hohlraum ausgebildet ist, wobei das Rückenkissen als auch das Vorderkissen jeweils aus wenigstens einem Beutel oder wenigstens einem Fach und einem in dem wenigstens einen Beutel oder dem wenigstens einen Fach befindlichen Faserstoffmaterial ausgebildet sind, wobei das Faserstoffmaterial einen Stapel aus einer Mehrzahl von flächig übereinander liegenden Einzellagen aus gekrepptem Faserstoff aufweist.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 on opposite side edges and on 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, wherein the fibrous material has a stack of a plurality of individual layers of creped fibrous material lying one above the other.

In der Druckschrift EP 3 772 472 A1 ist ein Thermobehältnis dieser Gattung beschrieben. Zwischen den flächig übereinander liegenden gekreppten Einzellagen sammelt sich Luft, was zu einer Temperaturhaltefähigkeit des bekannten Thermobehältnisses von bis zu 72 Stunden führt.In print EP 3 772 472 A1 A thermal container of this type is described. Air collects between the creped individual layers lying flat on top of each other, which means that the well-known thermal container can maintain temperature for up to 72 hours.

Das bekannte Thermobehältnis besitzt den Vorteil, dass es aufgrund des hierfür überwiegend verwendeten Faserstoffmaterials ökologisch unbedenklich recycelbar ist.The well-known thermal container has the advantage that it can be recycled in an ecologically safe manner due to the fibrous material predominantly used for this purpose.

Für verschiedene Anwendungszwecke bzw. bei stark von der Temperatur des Verpackungsgutes abweichenden Umgebungstemperaturen wäre jedoch eine noch längere Temperaturhaltefähigkeit des Thermobehältnisses wünschenswert.However, for various applications or when ambient temperatures differ greatly from the temperature of the packaged goods, an even longer temperature retention capacity of the thermal container would be desirable.

Die Druckschrift DE 20 2019 003 407 U1 beschreibt eine Verpackung aus Wellpappe zur Aufnahme und/oder zum Transport temperaturempfindlicher Erzeugnisse. Die Wellpappe ist zu einem quaderförmigen Karton gefaltet, wobei die Seitenwände des Kartons jeweils von zwei beabstandeten Wandungen gebildet werden, zwischen welchen ein thermisches Isolaiermaterial aufgenommen ist. Das thermische Isoliermaterial kann beispielsweise ein Papierschnipsel enthaltender Schlauchbeutel sein.The publication DE 20 2019 003 407 U1 describes packaging made of corrugated cardboard for holding and/or transporting temperature-sensitive products. The corrugated cardboard is folded into a cuboid-shaped cardboard box, the side walls of the cardboard box each being formed by two spaced-apart walls, between which a thermal insulating material is accommodated. The thermal insulating material can be, for example, a tubular bag containing shredded paper.

Ein solches Thermobehältnis dient dem Halten der Temperatur eines in den Karton eingebrachten Verpackungsgutes über einen bestimmten Zeitraum hinweg. Durch das Thermobehältnis kann somit die Kühlung des jeweils darin eingebrachten Verpackungsgutes, wie kühl zu haltenden Lebensmitteln, Arzneimitteln oder Blutkonserven, über eine bestimmte Zeit in einem bestimmten Temperaturfenster aufrecht erhalten werden.Such a thermal container is used to maintain the temperature of a packaged item placed in the box over a certain period of time. The thermal container allows the cooling of the packaged goods placed therein, such as foods to be kept cool, medicines or blood supplies, to be maintained over a specific time in a specific temperature window.

Das bekannte Thermobehältnis ist jedoch relativ aufwändig in der Herstellung. So muss die Größe und Form des Schlauchbeutels genau an den zwischen den Wandungen der Seitenwände ausgebildeten quaderförmigen Innenraum angepasst und der Schlauchbeutel nachfolgend mit einem Klebemittel innenliegend befestigt werden. Dies gestaltet sich schon dadurch schwierig, weil die Papierschnipsel in dem Schlauchbeutel verrutschen.However, the known thermal container is relatively complex to produce. The size and shape of the tubular bag must be precisely adapted to the cuboid interior formed between the walls of the side walls and the tubular bag must then be fastened on the inside with an adhesive. This is difficult because the paper scraps slip in the tubular bag.

Da die Papierschnipsel auch im Gebrauch des Thermobehältnisses nach unten rutschen, müssen die Wandungen der Seitenwände relativ nah beieinander sein. Entsprechend kann nur eine begrenzte Menge an Papierschnipseln zwischen den Wandungen aufgenommen werden, sodass die Thermoisolationswirkung der mit den Papierschnipseln gefüllten Pappseitenwände nur geringfügig höher als die herkömmlicher Pappkartonseitenwände ist.Since the paper shreds also slide down when the thermal container is in use, the walls of the side walls must be relatively close to one another. Accordingly, only a limited amount of paper shreds can be accommodated between the walls, so that the thermal insulation effect of the cardboard side walls filled with the paper shreds is only slightly higher than that of conventional cardboard side walls.

Da bei diesem Thermobehältnis das Verrutschen der Papierschnipsel unvermeidlich ist, weist es keine allseitig gleichbleibenden Thermoisolationseigenschaften auf, sodass es insbesondere für den Transport und die Lagerung thermisch sensibler Erzeugnisse ungeeignet ist.Since slipping of the paper shreds is unavoidable with this thermal container, it does not have consistent thermal insulation properties on all sides, making it particularly unsuitable for the transport and storage of thermally sensitive products.

Es ist daher die Aufgabe der vorliegenden Erfindung, ein Thermobehältnis zur Verfügung zu stellen, das auch für thermisch sensible Erzeugnisse eine relativ langfristige Temperaturhaltefunktion aufweist.It is therefore the object of the present invention to provide a thermal container which has a relatively long-term temperature maintenance function even for thermally sensitive products.

Diese Aufgabe wird durch ein Thermobehältnis, das wenigstens ein flächiges Rückenkissen und ein sich in einer anderen Ebene über dem Rückenkissen erstreckendes, flächiges Vorderkissen, die an gegenüber liegenden Seitenrändern sowie an einem weiteren Seitenrand des Thermobehältnisses miteinander verbunden sind, einstückig ausgebildet sind oder über einen Verbindungsstück ineinander übergehen, aufweist, sodass zwischen dem Rückenkissen und dem Vorderkissen ein Hohlraum ausgebildet ist, wobei das Rückenkissen als auch das Vorderkissen jeweils aus wenigstens einem Beutel oder wenigstens einem Fach und einem in dem wenigstens einen Beutel oder dem wenigstens einen Fach befindlichen Faserstoffmaterial ausgebildet sind, wobei das Faserstoffmaterial einen Stapel aus einer Mehrzahl von flächig übereinander liegenden Einzellagen aus gekrepptem Faserstoff aufweist, gelöst, wobei das Faserstoffmaterial ferner wenigstens eine jeweils zwischen zwei der Einzellagen, die aus ungeordnet liegenden Fasern ausgebildet sind und deren Krepphöhe jeweils ≥ 0,3 mm und < 1 mm ist, angeordnete, nicht separat umhüllte Wirrlage aus losen Papierschnipseln und/oder Hanfschnipseln aufweist.This task is achieved by 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 on opposite side edges and on 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, wherein the back cushion and the front cushion are each 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, the fibrous material having a stack of a plurality of individual layers of creped fibrous material lying one above the other, solved, wherein the fibrous material further has at least one non-separately wrapped tangled layer of loose paper shreds and/or hemp shreds arranged between two of the individual layers, which are formed from disordered fibers and whose crepe height is in each case ≥ 0.3 mm and <1 mm .

In dem erfindungsgemäßen Thermobehältnis können sowohl kalte als auch warme Objekte aufbewahrt und transportiert werden. Insbesondere eignet sich das erfindungsgemäße Thermobehältnis als Kühltasche. Das wenigstens eine Objekt, dessen Temperatur bewahrt werden soll, kann vorteilhaft in den zwischen dem Rückenkissen und dem damit verbundenen Vorderkissen ausgebildeten Hohlraum eingebracht werden. Danach kann der Hohlraum geeignet verschlossen werden.Both cold and warm objects can be stored and transported in the thermal container according to the invention. The thermal container according to the invention is particularly 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 thereto. The cavity can then be suitably closed.

Die gekreppten Faserstoffeinzellagen des Rückenkissens und des Vorderkissens bewirken an sich schon eine besonders vorteilhafte thermische Isolation des wenigstens einen in das Thermobehältnis eingebrachten Objektes gegenüber der Umgebung. Dies wird insbesondere durch die zwischen den flächig übereinander liegenden Einzellagen aus gekrepptem Faserstoff ausgebildeten Lufteinschlüsse bzw. Luftzwischenräume erreicht. Durch die Kreppung der Einzellagen weist jede der Einzellagen eine Mehrzahl von Bergen und Tälern auf, wobei sich in den Tälern Luft sammelt. Da die Kreppung von Einzellage zu Einzellage nie identisch ist und die Einzellagen auch nicht passgenau übereinander gestapelt werden oder ineinander eingedrückt werden, fügen sich die Täler der jeweils darüber liegenden Einzellage nicht bzw. nicht vollständig in die Täler der jeweils darunter liegenden Einzellage identisch ein, sodass in jedem Fall ein Luftzwischenraum erhalten bleibt.The creped individual fiber layers of the back cushion and the front cushion in themselves bring about a particularly advantageous thermal insulation of the at least one object placed in the thermal container from the environment. This is achieved in particular by the air pockets or air spaces formed between the individual layers of creped fiber material lying one above the other. Due to the creping of the individual layers, each of the individual layers has a number of mountains and valleys, with air collecting in the valleys. Since the creping is never identical from individual layer to individual layer and the individual layers are not stacked on top of each other or pressed into each other with precision, the valleys of the individual layer above do not fit into the valleys of the individual layer below, or do not fit completely into the valleys of the individual layer below, so that In any case an air gap is maintained.

Darüber hinaus ist bei der vorliegenden Erfindung wenigstens zwischen zwei der gekreppten Einzellagen eine Wirrlage aus Papierschnipseln und/oder Hanfschnipseln, also eine Lage aus ungeordnet liegenden Papierschnipseln und/oder Hanfschnipseln, angeordnet. Obwohl die Papierschnipsel einzelne, nicht miteinander zu einer geschlossenen Lage verbundene Papierelemente sind bzw. die Hanfschnipsel einzelne, nicht miteinander zu einer geschlossenen Lage verbundene Hanfelemente sind, die beispielsweise in den Seitenwänden des in der Druckschrift DE 20 2019 003 407 U1 beschriebenen Thermobehältnisses verrutschen, und die in der vorliegenden Erfindung nicht separat von einem Beutel oder dergleichen zusammengehalten werden, bleiben die Papierschnipsel und/oder die Hanfschnipsel bei der vorliegenden Erfindung überraschenderweise weitgehend an ihrer jeweiligen Position zwischen den Einzellagen. Dies ist auf die spezielle Kreppung der beidseitig der Papier- und/oder Hanfschnipsellage liegenden Einzellagen zurückzuführen. Die durch die Kreppung dieser Einzellagen gebildeten, nur höchstens 1 mm, besonders bevorzugt weniger als 0,4 mm, in ihrer Höhe auseinanderliegenden Berge und Täler wirken wie Zähne, die die Papierschnipsel und/oder die Hanfschnipsel festhalten, sodass diese nicht zwischen den Einzellagen nach verrutschen.In addition, in the present invention, a random layer of paper shreds and/or hemp shreds, i.e. a layer of disordered paper shreds and/or hemp shreds, is arranged at least between two of the creped individual layers. Although the paper shreds are individual paper elements that are not connected to one another to form a closed layer, or the hemp shreds are individual paper elements, not to each other are hemp elements connected to a closed layer, for example in the side walls of the document DE 20 2019 003 407 U1 If the thermal container described slips, and which in the present invention are not held together separately by a bag or the like, the paper shreds and/or the hemp shreds surprisingly remain largely in their respective positions between the individual layers in the present invention. This is due to the special creping of the individual layers on both sides of the paper and/or hemp shred layer. The mountains and valleys formed by the creping of these individual layers, which are only separated in height by a maximum of 1 mm, particularly preferably less than 0.4 mm, act like teeth that hold the paper shreds and/or the hemp shreds so that they do not fall between the individual layers slip.

Bei der vorliegenden Erfindung haben mindestens diese beiden, beidseitig der Papier- und/oder Hanfschnipsellage angeordneten gekreppten Einzellagen, vorzugsweise aber alle der gekreppten Einzellagen, eine Krepphöhe von ≥ 0,3 mm, sodass sich zwischen den jeweiligen Einzellagen bzw. zumindest zwischen der Papier- und/oder Hanfschnipsellage und den beidseitig der Papier- und/oder Hanfschnipsellage liegenden Einzellagen viel Luft sammeln kann, die der thermischen Isolierung dient.In the present invention, at least these two creped individual layers arranged on both sides of the paper and/or hemp shred layer, but preferably all of the creped individual layers, have a crepe height of ≥ 0.3 mm, so that between the respective individual layers or at least between the paper layer and/or hemp shredding layer and the individual layers lying on both sides of the paper and/or hemp shredding layer can collect a lot of air, which serves for thermal insulation.

Zwischen den Papier- und/oder Hanfschnipseln bildet sich außerdem eine Vielzahl von Luftzwischenräumen, die in Ergänzung zu den schon zwischen den Einzellagen vorhandenen Lufteinschlüssen zu außerordentlich guten Thermoisolationseigenschaften des Thermobehältnisses führen.A large number of air spaces also form between the paper and/or hemp shreds, which, in addition to the air pockets already present between the individual layers, lead to extremely good thermal insulation properties of the thermal container.

Die Papier- und/oder Hanfschnipsel sind ungeordnet, d. h. sie weisen innerhalb der Wirrlage unterschiedlichste Ausrichtungen auf. Sie können also übereinander liegen und/oder Knäuel bilden und/oder in Richtung der jeweils anliegenden gekreppten Einzellage auskragen.The paper and/or hemp scraps are disordered, i.e. H. they have a wide variety of orientations within the confusion. They can therefore lie on top of each other and/or form balls and/or cantilever out in the direction of the adjacent creped individual layer.

Um geeignet große Lufteinschlüsse zwischen den Einzellagen auszubilden und die Papier- und/oder Hanfschnipsel gut halten zu können, weist vorzugsweise jede der Einzellagen eine Krepphöhe von ≥ 0,3 mm, bevorzugt von ≥ 0,4 mm, besonders bevorzugt von ≥ 0,6 mm, in einem Ausführungsbeispiel von 0,65 mm auf. Es handelt sich somit um sogenannten Hochkrepp.In order to form suitably large air pockets between the individual layers and to be able to hold the paper and/or hemp shreds well, each of the individual layers preferably 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.

Beispielsweise sind bei der vorliegenden Erfindung entweder 4 oder 8 der gekreppten Einzellagen ohne zwischengeschichtete Papier- und/oder Hanfschnipsel übereinander gestapelt, also 4er- oder 8er-Stapel gebildet, wobei zwischen jeweils zwei der 4er- oder 8er-Stapel eine Lage aus den Papier- und/oder Hanfschnipseln angeordnet ist. Zum Beispiel weist das Thermobehältnis 16 gekreppte Einzellagen mit einer oder drei Papier- und/oder Hanfschnipsellagen auf.For example, in the present invention, either 4 or 8 of the creped individual layers are stacked on top of each other without interlayered paper and/or hemp shreds, i.e. stacks of 4 or 8 are formed, with a layer of the paper between each two of the stacks of 4 or 8. and/or hemp snippets is arranged. For example, the thermal container has 16 creped individual layers with one or three layers of paper and/or hemp shreds.

Der Beutel bzw. das Fach besitzen auch eine Schutzfunktion für das darin befindliche Faserstoffmaterial.The bag or compartment also has a protective function for the fibrous material contained therein.

Das bei der vorliegenden Erfindung sowohl für die gekreppten Einzellagen als auch für die Papierschnipsel verwendete Faserstoffmaterial, das ein Primärfaserstoff, wie ein Zellstoff, ein Holzstoff oder ein Halbzellstoff, und/oder ein Sekundärfaserstoff, wie ein aus Altpapier gewonnener Faserstoff sein kann, als auch der für die Hanfschnipsel verwendete Hanf besitzen den Vorteil, dass es sich jeweils um einen natürlichen, für die Umwelt unbedenklichen Werkstoff handelt, der leicht recycelbar ist und an sich schon eine geringe Wärmeleitung und damit gute thermische Isolationseigenschaften aufweist.The fibrous material used in the present invention for both the creped individual layers and for the paper shreds, which can be a primary fibrous material, such as a pulp, a wood pulp or a semi-pulp, and / or a secondary fibrous material, such as a fibrous material obtained from waste paper, as well as the Hemp used for the hemp snippets has the advantage that it is a natural material that is harmless to the environment, is easily recyclable and in itself has low heat conduction and therefore good thermal insulation properties.

Wenigstens die beiden Einzellagen, die beidseitig der jeweiligen Lage aus den Papier und/oder Hanfschnipseln liegen, sind, anders als Papier oder die in der Druckschrift DE 20 2019 003 407 U1 verwendete Wellpappe, aus ungeordnet liegenden Fasern ausgebildet. Somit besitzen diese darüber hinaus noch gekreppten Einzellagen eine höhere Oberflächenrauigkeit als Papier oder Wellpappe und halten somit die Papier- und/oder Hanfschnipsel besonders gut.At least the two individual layers that lie on both sides of the respective layer of paper and/or hemp shreds are different from paper or those in the publication DE 20 2019 003 407 U1 used corrugated cardboard, made of disordered fibers. These individual layers, which are also creped, therefore have a higher surface roughness than paper or corrugated cardboard and therefore hold the paper and/or hemp shreds particularly well.

Darüber hinaus führt die Ausbildung des verwendeten Faserstoffmaterials zu einer vorteilhaften Weichheit und Voluminösität, welche dafür sorgen, dass das Verpackungsgut in dem Thermobehältnis sicher gelagert und transportiert werden kann.In addition, the design of the fibrous material used leads to an advantageous softness and voluminousness, which ensure that the packaged goods can be safely stored and transported in the thermal container.

Das erfindungsgemäße Thermobehältnis ist gut stapelbar, aber auch als Einkaufstüte verwendbar.The thermal container according to the invention can be easily stacked, but can also be used as a shopping bag.

In einer bevorzugten Ausführungsform der vorliegenden Erfindung ist ein zwischen einer der Einzellagen und einer Lage aus dem Papier, aus dem die Papierschnipsel ausgebildet sind, bestehender Haftreibungskoeffizient mindestens um den Faktor 1,1, vorzugsweise mindestens um den Faktor 1,25, besonders bevorzugt mindestens um den Faktor 1,34 größer als der Haftreibungskoeffizient, der zwischen zwei Lagen aus dem Papier, aus dem die Papierschnipsel ausgebildet sind, besteht.In a preferred embodiment of the present invention, a coefficient of static friction existing between one of the individual layers and a layer of the paper from which the paper shreds are formed is at least a factor of 1.1, preferably at least by a factor of 1.25, particularly preferably at least by a factor of 1.34, greater than the coefficient of static friction that exists between two layers of the paper from which the paper shreds are formed.

Dadurch haften die Papierschnipsel besonders gut an den gekreppten Einzellagen und verrutschen somit kaum. Die Papierschnipsel haften vor allem besser an den gekreppten Einzellagen als sie beispielsweise an einer Kartonage, wie sie beispielsweise in der Druckschrift DE 20 2019 003 407 U1 zur Ausbildung der Seitenwände der Verpackung verwendet wird, haften würden. Erst recht haften die Papierschnipsel bei dieser Ausführungsform der Erfindung besser an den gekreppten Einzellagen, als sie an dem aus einer Polyethylenfolie bestehenden Schlauchbeutel, in den sie in der Druckschrift DE 20 2019 003 407 U1 eingebracht sind, haften würden. So ist der Haftreibungskoeffizient zwischen einer Lage aus dem Papier, aus dem die Papierschnipsel ausgebildet sind, und einer der gekreppten Einzellagen, die in der vorliegenden Erfindung zum Einsatz kommen, mindestens um den Faktor 1,9 größer als der Haftreibungskoeffizient zwischen einer Lage aus dem Papier, aus dem die Papierschnipsel ausgebildet sind, und der in der Druckschrift DE 20 2019 003 407 U1 verwendeten Polyethylenfolie.This means that the paper scraps stick particularly well to the creped individual layers and therefore hardly slip. Above all, the paper scraps stick better to the creped individual layers than they do to cardboard, for example, as in the printed publication DE 20 2019 003 407 U1 used to form the side walls of the packaging would adhere. Especially in this embodiment of the invention, the paper shreds adhere better to the creped individual layers than they do to the tubular bag made of polyethylene film into which they are placed in the publication DE 20 2019 003 407 U1 were introduced, would be liable. The coefficient of static friction between a layer of the paper from which the paper shreds are formed and one of the creped individual layers used in the present invention is at least a factor of 1.9 greater than the coefficient of static friction between a layer of paper , from which the paper scraps are formed, and that in the publication DE 20 2019 003 407 U1 polyethylene film used.

Wenn man davon ausgeht, dass der Haftreibungskoeffizient zwischen zwei Lagen aus dem Papier, aus dem die bei der vorliegenden Erfindung zum Einsatz kommenden Papierschnipsel ausgebildet sind, durchschnittlich bei 0,4 liegt, liegt bei gleichen Messbedingungen der Haftreibungskoeffizient bei der vorliegenden Erfindung zwischen einer Lage aus dem Papier, aus dem die Papierschnipsel ausgebildet sind, und einer der gekreppten Einzellagen bei wenigstens 0,5, bevorzugt bei 0,55 und besonders bevorzugt über 0,6.If one assumes that the coefficient of static friction between two layers of the paper from which the paper shreds used in the present invention are formed is on average 0.4, under the same measurement conditions the coefficient of static friction in the present invention is between one layer the paper from which the paper shreds are formed, and one of the creped individual layers at least 0.5, preferably at 0.55 and particularly preferably above 0.6.

Vorzugsweise weisen die Einzellagen des gekreppten Faserstoffes einen Kreppfaktor von wenigstens 40 %, in einer besonderen Ausgestaltung von 44 % auf. Letzterer Kreppfaktor entspricht einer Dehnung von 80 %.Preferably, the individual layers of the creped fiber material have a creping factor of at least 40%, in a special embodiment of 44%. The latter creping factor corresponds to an elongation of 80%.

Ist der wenigstens eine Beutel bei der vorliegenden Erfindung aus einem Vlies aus thermoplastischem Material ausgebildet, bietet er einen guten Feuchtigkeitsschutz für das darin liegende Faserstoffmaterial, welches eine gute Saugfähigkeit besitzt. Dies ist insbesondere der Fall, wenn das Vlies ein Polypropylen-Spinnvlies ist.If 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 lying therein, which has good absorbency. This is particularly the case if the fleece is a polypropylene spunbond.

Es ist besonders von Vorteil, wenn der wenigstens eine Beutel das Faserstoffmaterial schlauchartig umhüllt. Dabei können Seitenränder des wenigstens einen Beutel auch vernäht sein.It is particularly advantageous if the at least one bag encloses the fibrous material in a tube-like manner. The side edges of at least one bag can also be sewn.

In einer anderen, ebenfalls vorteilhaften Ausgestaltung der vorliegenden Erfindung sind der wenigstens eine Beutel oder das wenigstens eine Fach des Rückenkissens als auch der wenigstens eine Beutel oder das wenigstens eine Fach des Vorderkissens aus Papier ausgebildet. Dadurch besteht das gesamte Thermobehältnis aus ökologisch recycelbarem Material, nämlich Papier und Faserstoffmaterial.In another, also advantageous embodiment of the present invention, the at least one bag or the at least one compartment of the back cushion as well as the at least one bag or the at least one compartment of the front cushion are made of paper. This means that the entire thermal container is made of ecologically recyclable material, namely paper and fiber material.

Dies kann in einer vorteilhaften Ausbildung der Erfindung dadurch realisiert werden, dass der wenigstens eine Beutel oder das wenigstens eine Fach des Rückenkissens als auch der wenigstens eine Beutel oder das wenigstens eine Fach des Vorderkissens durch eine in eine Außenpapiertüte eingebrachte Innenpapiertüte ausgebildet sind, wobei sich jeweils das Faserstoffmaterial zwischen einer Außenseite der Innenpapiertüte und einer Innenseite der Außenpapiertüte befindet. Die Innenpapiertüte wird also in die Außenpapiertüte eingesetzt und wenigstens an der Vorder- und der Rückseite dieser Ausführungsform des erfindungsgemäßen Thermobehältnisses wird jeweils das Faserstoffmaterial zwischen dem Material der Innenpapiertüte und dem Material der Außenpapiertüte eingesetzt. In die Innenpapiertüte kann dann das jeweilige, typischerweise kühl zu haltende Verpackungsgut gegeben werden.In an advantageous embodiment of the invention, this can be realized in that the at least one bag or the at least one compartment of the back cushion as well as the at least one bag or the at least one compartment of the front cushion are formed by an inner paper bag inserted into an outer paper bag, in each case 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 therefore inserted into the outer paper bag and at least on the front and back of this embodiment of the thermal container according to the invention, the fibrous material is inserted between the material of the inner paper bag and the material of the outer paper bag. The respective packaged goods that typically need to be kept cool can then be placed in the inner paper bag.

In einer zweckmäßigen Ausgestaltung dieser Ausführungsform der Erfindung sind die Innenpapiertüte und die Außenpapiertüte unter Einschluss des Faserstoffmaterials miteinander verbunden. Dadurch kann das innenliegende Faserstoffmaterial nicht aus dem Zwischenraum zwischen der Außenpapiertüte und der Innenpapiertüte herausrutschen. Es besteht auch hierdurch nicht die Gefahr, dass das Verpackungsgut in den Zwischenraum zwischen der Außenpapiertüte und der Innenpapiertüte rutscht.In an expedient embodiment of this embodiment of the invention, the inner paper bag and the outer paper bag are connected to one another, including the fibrous material. This means that the internal fibrous material cannot slip out of the space between the outer paper bag and the inner paper bag. This also means there is no risk of the packaged goods slipping into the space between the outer paper bag and the inner paper bag.

Besonders ökologisch wertvoll ist das erfindungsgemäße Thermobehältnis, wenn der gekreppte Faserstoff aus Zellstoffwatte, die zu mindestens 90 % aus recyceltem Altpapier mit Altpapierqualitäten gemäß DIN EN 643 hergestellt ist, ausgebildet ist.The thermal container according to the invention is particularly ecologically valuable if the creped fiber material is made from cellulose wadding, which is made from at least 90% recycled waste paper with waste paper qualities in accordance with DIN EN 643.

Es hat sich als besonders vorteilhaft herausgestellt, wenn die Papierschnipsel aus geschreddertem oder gehäckseltem Papier bzw. die Hanfschnipsel aus geschreddertem oder gehäckseltem Hanf ausgebildet sind. So kann beispielsweise aus Datenschutzgründen geschreddertes Papier sinnvoll weiterverwendet werden. Außerdem sind die Abmessungen von mit herkömmlichen Schredderern geschreddertem Papier optimal, um eine gute Temperaturhaltefähigkeit bei dem erfindungsgemäßen Thermobehältnis zu erzielen.It has proven to be particularly advantageous if the paper shreds are made from shredded or chopped paper or the hemp shreds are made from shredded or chopped hemp. For example, shredded paper can be usefully reused for data protection reasons. In addition, the dimensions of paper shredded with conventional shredders are optimal in order to achieve good temperature retention in the thermal container according to the invention.

Vorzugsweise weisen die Papier- und/oder Hanfschnipsel eine Breite auf, die in einem Bereich von 0,5 cm bis 1 cm liegt. Die Länge der Papier- und/oder Hanfschnipsel kann gleich oder unterschiedlich sein. Beispielsweise können die Papier- und/oder Hanfschnipsel bis zu 4 cm lang oder auch länger sein. Je länger die Papier- und/oder Hanfschnipsel, umso bessere Thermoeigenschaften weist das erfindungsgemäße Thermobehältnis auf.Preferably, the paper and/or hemp shreds have a width that is in a range of 0.5 cm to 1 cm. The length of the paper and/or hemp shreds can be the same or different. For example, the paper and/or hemp shreds can be up to 4 cm long or even longer. The longer the paper and/or hemp shreds, the better thermal properties the thermal container according to the invention has.

Bevorzugte Ausführungsformen der vorliegenden Erfindung werden im Folgenden anhand von Figuren näher erläutert, wobei

Figur 1
schematisch eine mögliche Ausführungsform eines erfindungsgemäßen Thermobehältnisses in einer Draufsicht zeigt;
Figur 2
schematisch eine Ausführungsform des erfindungsgemäßen Thermobehältnisses mit einem eingebrachten Verpackungsgut in einer Draufsicht zeigt;
Figur 3
schematisch eine mögliche Ausgestaltung eines Rücken- oder Vorderkissens einer Ausführungsform des erfindungsgemäßen Thermobehältnisses in einer geschnittenen Seitenansicht zeigt; und
Figur 4
schematisch eine andere Ausführungsform des erfindungsgemäßen Thermobehältnisses in einer perspektivischen Seitenansicht zeigt.
Preferred embodiments of the present invention are explained in more detail below with reference to figures, where:
Figure 1
schematically shows a possible embodiment of a thermal container according to the invention in a top view;
Figure 2
schematically shows an embodiment of the thermal container according to the invention with an introduced packaged item in a top view;
Figure 3
schematically shows a possible embodiment of a back or front cushion of an embodiment of the thermal container according to the invention in a sectioned side view; and
Figure 4
schematically shows another embodiment of the thermal container according to the invention in a perspective side view.

In allen Figuren sind die dargestellten Ausführungsformen nicht maßstabsgetreu dargestellt. Vielmehr sind in den Figuren bestimmte Merkmale der besseren Verständlichkeit halber besonders groß im Vergleich zu anderen Merkmalen der Erfindung dargestellt. Verdeckte Merkmale sind großteils gestrichelt dargestellt.In all figures, the embodiments shown are not shown to scale. Rather, in the figures, certain features are shown particularly large in comparison to other features of the invention for the sake of better understanding. Hidden features are mostly shown in dashed lines.

Figur 1 zeigt schematisch eine mögliche Ausführungsform eines erfindungsgemäßen Thermobehältnisses 1 in einer Draufsicht. Das Thermobehältnis 1 ist in dem gezeigten Ausführungsbeispiel eine Kühltasche für Transportzwecke. Eine solche Kühltasche kann beispielsweise eine Außenbreite von 300 bis 600 mm und eine Außenlänge von 300 bis 600 mm aufweisen. Die Verschlussklappe der Kühltasche kann eine Länge von 50 bis 120 mm aufweisen. Selbstverständlich sind auch andere Maße möglich. Figure 1 shows schematically a possible embodiment of a thermal container 1 according to the invention in a top view. In the exemplary embodiment shown, the thermal container 1 is a cool bag for transport purposes. Such a cool bag can, for example, have an external width of 300 to 600 mm and an external length of 300 to 600 mm. The closure flap of the cool bag can be 50 to 120 mm long. Of course, other dimensions are also possible.

Das Thermobehältnis 1 kann jedoch auch zum Warmhalten von Objekten verwendet werden.However, the thermal container 1 can also be used to keep objects warm.

In Figur 2 ist das Thermobehältnis 1 aus Figur 1 geöffnet mit einem darin eingebrachten Verpackungsgut 15 in einer Draufsicht gezeigt.In Figure 2 the thermal container 1 is off Figure 1 opened with a packaged goods 15 placed therein shown in a top view.

Das Thermobehältnis 1 weist ein flächiges Rückenkissen 2 und ein flächige Vorderkissen 3 auf. Das Rückenkissen 2 ist mit dem Vorderkissen 3 an einander gegenüber befindlichen Seitenrändern 4, 5 des Thermobehältnisses 1 verbunden. In dem dargestellten Ausführungsbeispiel ist diese Verbindung durch längs der Seitenränder 4, 5 verlaufende Nähte 16, 17 realisiert.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 on opposite side edges 4, 5 of the thermal container 1. In the exemplary embodiment shown, this connection is realized by seams 16, 17 running along the side edges 4, 5.

In anderen, nicht gezeigten Ausführungsformen der Erfindung kann diese Verbindung allein oder in Kombination mit den Nähten 16, 17 durch Verkleben und/oder Verquetschen des Materials vorgenommen sein.In other embodiments of the invention, not shown, this connection can be made alone or in combination with the seams 16, 17 by gluing and/or squeezing the material.

In dem in den Figuren 1 und 2 dargestellten Ausführungsbeispiel sind das Rückenkissen 2 und das Vorderkissen 3 aus derselben, in Form eines Beutelbandes ausgebildeten Materialbahn gebildet. Daher ist das Rückenkissen 2 mit dem Vorderkissen 3 an einem weiteren Seitenrand 6 des Thermobehältnisses 1 einstückig ausgebildet. Das Material des Rückenkissens 2 geht also an dem Seitenrand 6, der beispielsweise eine Taschenunterkante bilden kann, direkt in das Material des Vorderkissens 3 über.In the in the Figures 1 and 2 In the exemplary embodiment shown, the back cushion 2 and the front cushion 3 are formed from the same material web in the form of a bag band. Therefore, the back cushion 2 is formed in one piece with the front cushion 3 on a further side edge 6 of the thermal container 1. The material of the back cushion 2 therefore merges directly into the material of the front cushion 3 at the side edge 6, which can, for example, form a lower edge of the pocket.

In anderen, nicht gezeigten Ausführungsformen der vorliegenden Erfindung können das Rückenkissen 2 und das Vorderkissen 3 auch separat ausgebildet und an dem Seitenrand 6 miteinander verbunden sein. Ferner ist es möglich, dass in anderen Ausführungsformen der vorliegenden Erfindung an den Seitenrändern 4, 5 und/oder 6 wenigstens ein Materialstück zwischen dem Rückenkissen 2 und dem Vorderkissen 3 vorgesehen und mit diesen verbunden ist. das Materialstück kann beispielsweise streifen- oder stegartig ausgebildet sein.In other embodiments of the present invention, not shown, the back cushion 2 and the front cushion 3 can also be designed 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 associated with these. The piece of material can, for example, be designed like a strip or web.

Zwischen dem Rückenkissen 2 und dem Vorderkissen 3 ist ein Hohlraum 7 ausgebildet, in den, wie es in Figur 2 zu sehen ist, das Verpackungsgut 15 eingebracht wird.A cavity 7 is formed between the back cushion 2 and the front cushion 3, in which, as shown in Figure 2 it can be seen that the packaged goods 15 are introduced.

In dem in den Figuren 1 und 2 dargestellten Ausführungsbeispiel weist das Rückenkissen 2 einen einseitig über das Vorderkissen 3 überstehenden Rückenkissenabschnitt 21 auf. In anderen Ausführungsformen der vorliegenden Erfindung kann sich auch einseitig an das Rückenkissen 2 eine Verschlusslasche anschließen. Der überstehende Rückenkissenabschnitt 21 oder die Verschlusslasche werden, wie es durch den Pfeil A in Figur 2 schematisch angedeutet ist, zum Verschließen des Hohlraumes 7 auf eine Oberfläche des Vorderkissens 3 geklappt und mit diesem direkt oder mittelbar verbunden. Beispielsweise kann der überstehende Rückenkissenabschnitt 21 oder die Verschlusslasche mittels Klebstofflinien auf dem Vorderkissen 3 aufgeklebt werden. Es können jedoch Klebstoffnoppen hierfür genutzt werden.In the in the Figures 1 and 2 In the exemplary embodiment shown, the back cushion 2 has a back cushion section 21 which protrudes on one side over the front cushion 3. In other embodiments of the present invention, a closure tab can also be connected to the back cushion 2 on one side. The protruding back cushion section 21 or the closure tab is 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. For example, the protruding back cushion section 21 or the closure tab can be glued to the front cushion 3 using adhesive lines. However, adhesive knobs can be used for this.

Das Rückenkissen 2 als auch das Vorderkissen 3 weisen jeweils einen Beutel 8 auf. Der Beutel 8 umschließt schlauchartig ein Faserstoffmaterial 9. Anstelle des Beutels 8 kann, wie in Figur 4 zu sehen, wenigstens ein Fach 18 vorgesehen sein, in dem sich das Faserstoffmaterial 9 befindet. Das Fach 18 ist im Vergleich zu dem Beutel 8 nicht vollumfänglich um das Faserstoffmaterial 9 ausgebildet, aber in vorteilhaften Varianten der Erfindung verschließbar.The back cushion 2 and the front cushion 3 each have a bag 8. The bag 8 encloses a fibrous material 9 in a tube-like manner. Instead of the bag 8, as in Figure 4 To see, at least one compartment 18 may be provided in which the fibrous material 9 is located. In comparison to the bag 8, the compartment 18 is not completely formed around the fibrous material 9, but can be closed in advantageous variants of the invention.

Bei dem in den Figuren 1 und 2 Thermobehältnis 1 kommt das Faserstoffmaterial 9 zum Einsatz, welches in Figur 3 schematisch in einer nicht maßstabsgetreuen, geschnittenen Seitenansicht dargestellt ist.With the one in the Figures 1 and 2 Thermal container 1 uses fiber material 9, which is in Figure 3 is shown schematically in a sectional side view that is not true to scale.

Das Faserstoffmaterial 9 besteht aus einem ein Stapel aus einer Mehrzahl von flächig übereinander liegenden Einzellagen 91 aus gekrepptem Faserstoff. Die Besonderheit des verwendeten gekreppten Faserstoffes ist hier, dass es sich um sogenannten Hochkrepp handelt. Der verwendete gekreppte Faserstoff weist also eine besonders hohe Krepphöhe d von ≥ 0,3 mm, beispielsweise von ≥ 0,35 mm, pro Einzellage 91 auf. In manchen Ausführungsformen der vorliegenden Erfindung ist die Krepphöhe d noch größer, wie beispielsweise ≥ 0,5 mm oder sogar ≥ 0,65 mm. Die Krepphöhe d von 0,65 mm führt bei dem verwendeten Werkstoff, der in dem gezeigten Ausführungsbeispiel Zellstoffwatte ist, zu einer Dehnung von 80 %, was wiederum einem Kreppfaktor von 44 % entspricht.The fibrous material 9 consists of a stack of a plurality of individual layers 91 made of creped fibrous material lying one above the other. The special feature of the creped fiber material used here is that it is so-called high crepe. The creped fiber material used therefore has a particularly high creping height d of ≥ 0.3 mm, for example ≥ 0.35 mm, per individual layer 91. In some embodiments of the present invention, the creping height d is even greater, such as ≥ 0.5 mm or even ≥ 0.65 mm. The crepe height d of 0.65 mm In the material used, which in the exemplary embodiment shown is cellulose wadding, leads to an elongation of 80%, which in turn corresponds to a creping factor of 44%.

Hochkrepp ist ein sehr dünnes Material, welches auch Löcher aufweisen kann.High crepe is a very thin material that can also have holes.

In dem gezeigten Ausführungsbeispiel beträgt die flächenbezogene Masse des eingesetzten gekreppten Faserstoffes 23 Gramm pro Quadratmeter, kann aber in anderen Ausführungsformen der Erfindung auch anders sein.In the exemplary embodiment shown, the mass per unit area of the creped fiber material used is 23 grams per square meter, but may also be different in other embodiments of the invention.

In der gezeigten Ausführungsform ist der zwischen einer der Einzellagen 91 und einer Lage aus dem Papier, aus dem die Papierschnipsel 92 ausgebildet sind, bestehende Haftreibungskoeffizient mindestens um den Faktor 1,34 größer als der Haftreibungskoeffizient, der zwischen zwei Lagen aus dem Papier, aus dem die Papierschnipsel 92 ausgebildet sind, besteht. Dies wurde wie folgt getestet:
Für die Testmessungen wurde jeweils eine ebene Unterlage verwendet, was durch einer Wasserwaage überprüft wurde. Die Unterlage wurde in Testmessungen (a) jeweils mit einer Lage mit einer aus dem Papier bespannt, aus dem die Papierschnipsel 92 ausgebildet sind, in Testmessungen (b) jeweils mit einer Polypropylenfolie bespannt, in Testmessungen (c) jeweils mit einer Lage aus Karton bespannt und in Testmessungen (d) jeweils mit einer der gekreppten Einzellagen 91, hier mit Hochkrepp, bespannt. Ferner wurde eine ebene Oberfläche eines Messkörpers mit einer Lage aus dem Papier bespannt, aus dem die Papierschnipsel 92 ausgebildet sind. Die Abmessungen des aus Buchenholz bestehenden Messkörpers betragen 10 cm x 10 cm x 1,8 cm.
In the embodiment shown, the coefficient of static friction existing between one of the individual layers 91 and a layer of the paper from which the paper shreds 92 are formed is at least a factor of 1.34 greater than the coefficient of static friction between two layers of the paper the paper scraps 92 are formed. This was tested as follows:
A flat surface was used for the test measurements, which was checked using a spirit level. In test measurements (a), the base was covered with a layer of paper from which the paper scraps 92 are formed, in test measurements (b), it was covered with a polypropylene film, and in test measurements (c), it was covered with a layer of cardboard and in test measurements (d) each covered with one of the creped individual layers 91, here with high crepe. Furthermore, a flat surface of a measuring body was covered with a layer of paper from which the paper shreds 92 are formed. The dimensions of the measuring body made of beech wood are 10 cm x 10 cm x 1.8 cm.

Der bespannte Messkörper wurde auf die bespannte Unterlage gelegt. Danach wurde die Unterlage an einer Seite angehoben, bis sich der Messkörper bewegte. Die Höhe, um die die Unterlage angehoben wurde, bis sich der Messkörper bewegte, wurde gemessen und festgehalten. Dabei ergaben sich folgende Messwerte: Tab. 1: Messwerte aus Haftreibungstest Reibpaarung Messwerte Versuch 1 Messwerte Versuch 2 Messwerte Versuch 3 (a) Papier / Papier 27,2 28,0 27,2 (b) Papier / Polypropylenfolie 17,1 19,3 18,0 (c) Papier / Karton 27,7 32,0 27,0 (d) Papier / Hochkrepp 37,8 38,1 36,5 The covered measuring body was placed on the covered base. The base was then lifted on one side until the measuring body moved. The height by which the base was raised until the measuring body moved was measured and recorded. The following measured values resulted: <i>Tab. 1: Measured values from static friction test</i> Friction pairing Measured values experiment 1 Measured values experiment 2 Measured values experiment 3 (a) Paper / Paper 27.2 28.0 27.2 (b) Paper / Polypropylene film 17.1 19.3 18.0 (c) Paper/cardboard 27.7 32.0 27.0 (d) Paper / crepe 37.8 38.1 36.5

In dem gezeigten Ausführungsbeispiel wurde der gekreppte Faserstoff auf folgende Weise hergestellt:
Als Grundmaterial wurde Recycling-Zellstoffwatte aus ausgesuchten Altpapierqualitäten nach DIN EN 643 verwendet.
In the embodiment shown, the creped pulp was produced in the following manner:
Recycled cellulose wadding from selected waste paper qualities in accordance with DIN EN 643 was used as the base material.

Nach einem nassen Aufschlussverfahren und einem Entfernen papierfremder Bestandteile, jedoch ohne zusätzliche Bleiche, wurde die Kreppung der Recycling-Zellstoffwatte auf einem Yankee-Zylinder mittels eines keramikbeschichteten Stahlschabers durchgeführt.After a wet pulping process and removal of non-paper components, but without additional bleaching, the recycled cellulose wadding was creped on a Yankee cylinder using a ceramic-coated steel scraper.

Zur Erzielung der hohen Krepphöhe d und damit eines hohen Volumens des aus den Einzellagen 91 gelegten Stapels werden die Haftung der Zellstofffasern an der Zylinderoberfläche, die Geometrie des Schabers sowie der Anstellwinkel des Schabers und der Abzugswinkel der gekreppten Zellstoffwattebahn speziell eingestellt. Die Dehnung bzw. der Kreppfaktor wird durch die Differenzgeschwindigkeit zwischen dem Yankee-Zylinder und der Aufrollung entsprechend hergestellt.In order to achieve the high creping height d and thus a high volume of the stack made from the individual layers 91, the adhesion of the cellulose fibers to the cylinder surface, the geometry of the scraper as well as the angle of attack of the scraper and the take-off angle of the creped cellulose wadding web are specially adjusted. The elongation or creping factor is produced by the difference in speed between the Yankee cylinder and the reel.

Nach der Kreppung werden die Einzellagen 91 beispielsweise zu mehreren Stapeln mit jeweils 4 Einzellagen 91 doubliert. Dies erfolgt vorzugsweise auf einer Legemaschine. Die Einzellagen 91 liegen dabei typischerweise in der gleichen Lagenerzeugungsrichtung übereinander. Da die Kreppung jedoch nie exakt übereinander liegt, entsteht durch das Übereinanderlegen der Einzellagen 91 eine entsprechend hohe Stapelhöhe und zugleich ein hohes Stapelvolumen. Grundsätzlich ist es jedoch auch denkbar, die Einzellagen jeweils mit abwechselnder Ausrichtung übereinander zu legen, sodass sich die Kreppung von Einzellage 91 zu Einzellage 91 oder die jeweilige Kreppung der Einzellagen 91 kreuzt.After creping, the individual layers 91 are doubled, for example, into several stacks with 4 individual layers 91 each. This is preferably done on a planting machine. The individual layers 91 typically lie one above the other in the same layer generation direction. However, since the creping is never exactly on top of each other, the stacking of the individual layers 91 creates a correspondingly high stack height and at the same time a high stack volume. In principle, however, it is also conceivable to place the individual layers on top of each other with an alternating orientation, so that the creping from individual layer 91 to individual layer 91 or the respective creping of the individual layers 91 crosses each other.

Dann werden auf einen der Stapel aus den Einzellagen 91 Papierschnipsel 92 gestreut und auf diese Papierschnipsellage ein weiterer Stapel aus den Einzellagen 91 gelegt.Then paper shreds 92 are scattered onto one of the stacks of individual layers 91 and another stack of individual layers 91 is placed on this layer of paper shreds.

Dieser Vorgang kann mehrfach wiederholt vorgenommen werden, sodass im Ergebnis ein Stapel aus den gekreppten Einzellagen 91 mit wenigstens einer, jeweils zwischen zwei der Einzellagen 91' angeordneten Lage aus den Papierschnipseln 92 ausgebildet ist.This process can be repeated several times, so that the result is a stack of the creped individual layers 91 with at least one layer of paper shreds 92 arranged between two of the individual layers 91 '.

Die jeweils beidseitig der Lage aus den Papierschnipseln 92 liegenden gekreppten Einzellagen 91', die die gleiche Kreppung aber auch eine andere Kreppung als die anderen Einzellagen 91 aufweisen können, weisen eine Krepphöhe d < 1 mm, bevorzugt < 0,6 mm, in bestimmten Fällen von < 0,4 mm auf.The creped individual layers 91' lying on both sides of the layer of paper shreds 92, which can have the same creping but also a different creping than the other individual layers 91, have a creping height d <1 mm, preferably <0.6 mm, in certain cases of < 0.4 mm.

Der so erzeugte Stapel wird kann dann in die gewünschte Breite, je nach Größe des Rückenkissens 2 und des Vorderkissens 3, geschnitten werden.The stack created in this way can then be cut into the desired width, depending on the size of the back cushion 2 and the front cushion 3.

Anschließend wird der Stapel mit dem Beutel 8 umhüllt.The stack is then wrapped in the bag 8.

In dem in den Figuren 1, 2 und 3 gezeigten Ausführungsbeispiel besteht der Beutel 8 aus einem Polypropylen-Spinnvlies, mit dem der Stapel aus den Einzellagen 91 und den Paierschnipseln 92 schlauchartig umhüllt wird. Das Polypropylen-Spinnvlies gewährleistet den Zusammenhalt der Einzellagen 91, 91' und der Papierschnipsel 92.In the in the Figures 1, 2 and 3 In the exemplary embodiment shown, the bag 8 consists of a polypropylene spunbond, with which the stack of the individual layers 91 and the paper shreds 92 is covered in a tube-like manner. The polypropylene spunbond ensures the cohesion of the individual layers 91, 91' and the paper shreds 92.

Vorzugsweise beträgt der Anteil des Beutels 8 an dem Gesamtgewicht des Thermobehältnisses 1 maximal 4 Gew.-%. So kann das Thermobehältnis 1 nach § 16 Abs. 3 VerpackG vollständig auf die Quote von Papier angerechnet werden. Dadurch ergeben sich Kosteneinsparungen bei der Entsorgung.The proportion of the bag 8 in the total weight of the thermal container 1 is preferably a maximum of 4% by weight. According to Section 16 Paragraph 3 VerpackG, the thermal container 1 can be fully counted towards the paper quota. This results in cost savings in disposal.

Die Befestigung des Beutels 8 an dem bei dem Stapel jeweils außen befindlichen gekreppten Faserstoffmaterial 9 kann, wie in Figur 1 schematisch gezeigt, mit Hilfe von voneinander beabstandeten Linien 13 aus Schmelzklebstoff erfolgen. Beispielsweise haben diese Linien einen Abstand von ca. 20 mm und verlaufen längs der Materialbahn, aus der jeweils das Rückenkissen 2 und das Vorderkissen 3 ausgebildet ist.The bag 8 can be attached to the creped fibrous material 9 on the outside of the stack, as in Figure 1 shown schematically, with the help of spaced apart lines 13 made of hot melt adhesive. For example, these lines are at a distance of approximately 20 mm and run along the material web from which the back cushion 2 and the front cushion 3 are formed.

Es ist von Vorteil, wenn diese Materialbahn mit dem Faserstoffmaterial 9 gefüllte Bereiche und sich daran anschließende reine Vliesbereiche aufweist. Dann kann ein Vliesbereich, der sich an einen Rückenkissenabschnitt des Materialbandes anschließt, als Verschlusslasche zum Verschließen des Thermobehältnisses 1 verwendet werden. Beispielsweise kann ein Vliesüberstand über die mit dem Faserstoffmaterial 9 gefüllten Bereiche ca. 50 mm betragen.It is advantageous if this material web has areas filled with the fibrous material 9 and adjoining pure fleece areas. Then a fleece area that adjoins a back cushion section of the material band can be used as a closure tab for closing the thermal container 1. For example A fleece overhang over the areas filled with the fibrous material 9 can be approx. 50 mm.

Um aus der Materialbahn das Rückenkissen 2 und das Vorderkissen 3 auszubilden, wird diese quer zu ihrer Bahnlaufrichtung durchtrennt.In order to form the back cushion 2 and the front cushion 3 from the material web, it is cut transversely to the direction in which the web runs.

Dann wird ein Abschnitt des mit dem Faserstoffmaterial 9 gefüllten Bereiches des abgetrennten Materialbahnstückes, der später das Vorderkissen 3 bildet, über den Rest dieses Materialbahnstückes, der das Rückenkissen bildet, geklappt. Dann werden die Seitenränder 4, 5 miteinander vernäht und/oder verklebt und/oder verquetscht. Das Verquetschen erfolgt vorzugsweise mittels Zahnrädern. Das Verkleben kann weggelassen werden.Then a section of the area of the separated piece of material web filled with the fibrous material 9, which later forms the front cushion 3, is folded over the rest of this piece of material web, which forms the back cushion. Then the side edges 4, 5 are sewn and/or glued and/or squeezed together. Squeezing is preferably done using gears. Gluing can be omitted.

Figur 4 zeigt schematisch eine andere Ausführungsform eines erfindungsgemäßen Thermobehältnisses 1' in einer perspektivischen Seitenansicht. Figure 4 shows schematically another embodiment of a thermal container 1 'according to the invention in a perspective side view.

Das Thermobehältnis 1' weist eine Außenpapiertüte 11 und eine in der Außenpapiertüte 11 befindliche Innenpapiertüte 12 auf. An wenigstens zwei gegenüber befindlichen Seiten des Thermobehältnisses 1' ist zwischen die Innenpapiertüte 12 und die Außenpapiertüte 11 Faserstoffmaterial 9 eingebracht, welches wie oben beschrieben aufgebaut ist.The thermal container 1 'has an outer paper bag 11 and an inner paper bag 12 located in the outer paper bag 11. On at least two opposite sides of the thermal container 1 ', fibrous material 9 is inserted between the inner paper bag 12 and the outer paper bag 11, which is constructed as described above.

Die Innenpapiertüte 12 und die Außenpapiertüte 11 sind unter Einschluss des Faserstoffmaterials 9 miteinander verbunden.The inner paper bag 12 and the outer paper bag 11 are connected to one another, including the fibrous material 9.

An einer Oberseite des Thermobehältnisses 1' sind Traghenkel 14 vorgesehen.Carrying handles 14 are provided on an upper side of the thermal container 1'.

Ferner können an dem Thermobehältnis 1' geeignete Verschlussmittel vorgesehen sein.Furthermore, suitable closure means can be provided on the thermal container 1′.

Das Thermobehältnis 1' kann, wie gezeigt, einen Blockboden 19 aufweisen, kann aber auch ohne den Blockboden 19 ausgebildet sein.The thermal container 1 'can, as shown, have a block bottom 19, but can also be designed without the block bottom 19.

In den beschriebenen Ausführungsformen können jeweils anstelle der Papierschnipsel 92 oder zusätzlich zu den Papierschnipseln 92 Hanfschnipsel verwendet werden.In the embodiments described, hemp shreds can be used instead of the paper shreds 92 or in addition to the paper shreds 92.

Claims (6)

  1. A thermal container (1, 1') comprising at least one flat rear cushion (2) and one flat front cushion (3) extending in another plane above the rear cushion (2), which cushions are connected to one another at opposite side edges (4, 5) and at a further side edge (6) of the thermal container (1, 1'), are formed in one piece or merge into one another via a connecting piece, in such a way that a cavity (7) is formed between the rear cushion (2) and the front cushion (3), the rear cushion (2) and the front cushion (3) each being formed from at least one bag (8) or at least one compartment (18) and a fibrous material (9) located inside the at least one bag (8) or at least one compartment (18), wherein the fibrous material (9) comprises a stack of a plurality of flat superimposed single layers (91) made of creped fibrous material,
    characterized in that
    the fibrous material (9) further comprises at least one random layer of lose paper scraps (92) and/or hemp shred being arranged respectively between two of the single layers (91') formed from randomly laying fibers with a respective crepe height (d) of ≥ 0.3 mm and < 1 mm, which random layer is not enveloped separately.
  2. The thermal container according to claim 1, characterized in that a static friction coefficient existing between one of the single layers (91) and one layer of that paper from which the paper scraps (92) are formed is bigger by at least the factor 1.1 than the static friction coefficient existing between two of the layers of that paper from which the paper scraps (92) are formed.
  3. The thermal container according to at least one of the preceding claims, characterized in that the crepe height (d) of the respective single layers (91'), between which the respective layer of the paper scraps (92) and/or hemp shred is arranged, is < 0.4 mm.
  4. The thermal container according to at least one of the preceding claims, characterized in that the paper scraps (92) are formed from shred or chopped paper and/or the hemp shred is formed from shred or chopped hemp.
  5. The thermal container according to at least one of the preceding claims, characterized in that the paper scraps (92) and/or the hemp shred present a width which is in a range from 0.5 cm to 1 cm.
  6. The thermal container according to at least one of the preceding claims, characterized in that the at least one bag (8) or the at least one compartment (18) of the rear cushion (2) as well as the at least one bag (8) or the at least one compartment (18) of the front cushion (3) is formed from a non-woven of thermoplastic material and/or of paper.
EP22182890.8A 2021-08-11 2022-07-04 Thermal container Active EP4134329B1 (en)

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US20050118366A1 (en) * 2003-06-25 2005-06-02 Piemonte Robert B. Barrier materials and containers made therefrom
WO2019113453A1 (en) * 2017-12-08 2019-06-13 Ranpak Corp. Insulated package and method
WO2020072527A1 (en) * 2018-10-01 2020-04-09 Field Andrew Howard Re-pulpable insulated paper products and methods of making and using the same
WO2020263149A1 (en) 2019-06-24 2020-12-30 Ifoodbag Ab A bag
DE202019104350U1 (en) 2019-08-07 2020-11-10 Profümed Karlheinz Lohr e. K. Thermal container
DE202019003407U1 (en) 2019-08-19 2019-11-25 THlMM Verpackung GmbH + Co. KG Packaging for receiving and / or transporting temperature-sensitive products and cutting set therefor

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DE102021120900B4 (en) 2024-01-25

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