PACKAGING FOR THE THERMALLY INSULATED TRANSPORT OF GOODS

Abstract

The invention relates to packaging for the thermally insulated transportation of cooled or hot goods, which packaging consists of a box with multi-layer wall material formed from corrugated board and bubble wrap and an insert formed from a cushion filled with wood shavings. The multi-layer material for the box in accordance with the invention consists of a multi-layer laminated or loosely stacked composite, which, from the outside to the inside of the box, has the following layer sequence: (a) one or more bubble wrap layers, which are laminated with an aluminum foil or have a foil layer metallized with aluminum; (b) one or more single-wall open corrugated boards; (c) one or more bubble wrap layers which are laminated with an aluminum foil or have a foil layer metallized with aluminum.

Claims

1. A packaging for the thermally insulated transport of goods, comprising: a box with a lid, whereby the material for the bottom, the side walls and the lid being arranged multi-layered, wherein the bottom comprising a detachable plate, which is connected to the side walls, the plate featuring a rectangular form with rounded edges, the side walls comprising a continuous rectangular peace, which narrow sides are either detachable connected or connected with the surface of the side wall, the lid is a separate peace, which is inserted into the box opening for closing the box being kept via a frictioned connection between the side walls and the lid the multi-layer material, consisting of multi-layered laminated or loosely stacked compound, featuring from the outside to the inside of the box the following layer sequence: (a) at least one of air cushion foils, laminated with aluminum foil or a foil layer laminated with metalized aluminum, (b) at least one of single-shaft corrugated boards with open shaft, (c) at least one of air cushion foils, laminated with aluminum foil or a foil layer laminated with metalized aluminum and the bottom comprising layers (a) and (b) and the side walls and the lid consisting of layers (a) to (c), whereby the air cushion foils in layers (a) and (c) are oriented in such a way, that the aluminum foils or the foil layer, metalized with aluminum are situated on the outside of the compound and the open side of the shaft of the corrugated boards in layer (b) of the side walls in direction to the inside of the box and in layer (b) of the bottom is directed downwards, the shaft in the corrugated boards of the side walls is directed in such a way, that in runs vertical from the bottom into the direction of the box opening and the box comprises at least one cushion including non-woven covered with wood wool and/or wood shavings.

2. The packaging, according to claim 1, wherein each respectively one or several open and/or covered air cushion foils are arranged between layers (a) and (b), (b) and (c) and between the corrugated boards in layer (b), whereby the knobs of the open air cushion foil are arranged in the direction of the inside of the box.

3. The packaging, according to claim 1, wherein the detachable connection between the base plate and the side walls and/or between the thrusts of the side walls are carried out by means of adhesive.

4. The packaging, according to claim 1, wherein the base plate comprises a loosely stacked second plate as an inserted bottom, the second plate being smaller than the base plate all around the thickness of the side walls, the second plate comprising of the same material and orientation like the bottom, and being kept via a frictional connection with the side walls.

5. The packaging, according to claim 1, wherein the box comprises an additional plate, consisting comprising of the same compound material like the space divider of the box, which is variably positionable and kept via a frictional connection with the side walls.

6. The packaging, according to claim 1, wherein the outer edges of the compound material are closed with an adhesive.

7. The packaging, according to claim 1, wherein the lid comprises a loop on one or several edges.

8. The packaging, according to claim 1, wherein the foil of the cushion is perforated and/or needled.

9. The packaging, according to claim 1, wherein the cushion is provided with comprises lockstitch seams.

10. The packaging, according to claim 1, wherein the shafts of the corrugated boards in the base plate, inserted bottom and/or lid are each respectively oriented at 90 degrees in relation to each other.

11. The packaging, according to claim 1, wherein the shafts of the corrugated boards comprise C- or B-shafts.

12. The packaging, according to claim 1, wherein the multi-layer compound comprises at least seven layers, preferably seven to 16, highly preferably nine to eleven layers.

13. The packaging, according to claim 2, that wherein the base plate, inserted bottom and/or lid additionally comprises one or several two shafted corrugated boards.

14. The packaging, according to claim 1, wherein the bottom of the box further comprises a slip lid and/or additionally to the lid contains another slip lid, whereby the slip lid comprises one shafted covered corrugated boards on both sides.

15. A method for producing a packaging, containing the steps a) wrapping a winding core with a rectangular web of one or more air cushion foils, laminated with an aluminum foil or feature metalized aluminum foil, whereby the length of the foil layer corresponds to the inner circumference of the box to be produced and the butt joint of the web is connected by means of an adhesive tape, b) wrapping the structure, created in step a) with a rectangular web of corrugated cardboard with an open corrugation or single corrugation with open corrugation and air cushion foil for the production of a multi-layer side wall construction, whereby the beginning of the web with the surface, produced in step a) is adhesively bonded by means of an adhesive tape, c) bonding the end of the web to the surface of the side wall construction produced in step b) by means of an adhesive tape, d) bonding the lower edges of the side wall construction produced in step c) by means of an adhesive tape, e) providing a multi-layer laminated or loosely stacked composite in a rectangular shape with rounded corners, the edges are glued by means of an adhesive tape in order to produce the base plate and mounting the base plate to the side wall construction from step d) the outer and inner edges are glued together by means of an adhesive tape for producing the box, f) applying a rectangular web of one or more air cushion foils laminated with aluminum foil or having foil layer metalized with aluminum onto the outer side of the side wall construction e), the butt joint is bonded to the base plate by means of adhesive tape and the winding core is removed, g) gluing the upper edges of the side wall construction of the box, produced in step f) h) providing each of a multi-layer laminated or loosely stacked composite in a rectangular shape with rounded corners for the insert bottom and the lid, the edges are glued by means of an adhesive tape, the insert bottom is inserted into the box and a loop is mounted to a corner of the lid, and i) filling a wrapping made of a foil or a nonwoven with loose wood wool and/or loose wood chips, closing the wrapping to produce a pillow and inserting the pillow into the box.

16. Application of a packaging, according to claim 1 for the thermally insulated transport of food, medicine and/or organs.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The construction of a packaging box according to the invention is shown by way of example in FIGS. 1 to 4. The drawings are not be taken as limiting, but show only one of the possible embodiments of the invention.

[0054] FIG. 1 shows a perspective view of the open box with inserted pillow (5) and inserted space divider (7).

[0055] FIG. 2 shows a perspective view of the closed box with the cover inserted (2). The enlarged section features the arrangement of the layers and the vertical course of the corrugated board.

[0056] FIG. 3 is a side sectional view of the box (1) with the cover (2) inserted and space divider (7) clamped between the side walls (4). The bottom (3) features an insert base (6) with the pillow (5) above it.

[0057] FIG. 4a and FIG. 4b depict two useful examples of the box (1). In both examples, the bottom (3) and the top side of the box (1) are provided with an additional slip lid (9). FIG. 4a depicts the utilization including two areas, one space with cooled goods (10), and one space with deep-frozen goods (11) which make use of the entire box up to the upper edge. The cover (2) closes directly with the upper edge and lies directly below the lid (9). FIG. 4b depicts utilization including three areas. In this case, only a part of the entire box volume for cooled goods is being used, so that the slip lid (9) of the box (1) can be pressed further down. The horizontal arrangement of the waves in the corrugated board of the room divider (7) makes it possible to bend it, which is expediently followed in the direction of the deep-frozen goods.

[0058] FIG. 5 illustrates an obtained measurement curve from Measurement A.

[0059] FIG. 6 illustrates an obtained measurement curve from Measurement B.

[0060] FIG. 7 illustrates an obtained measurement curve from Measurement C.

DETAILED DESCRIPTION

[0061] In this way, space for uncooled goods (12) is being created in the area of the pressed down lid (2) and the slip lid (9).

[0062] Comparison Measurements

[0063] In order to compare the insulating performance of the packages according to the invention with the state of art, temperature measurements on packages equipped with cooling elements have been carried out. In order to ensure the comparability, they were carried out without inserted goods in each case.

[0064] An EasyLog USB 6 datalogger EA SYLOG-USBTC from Lascar Electronics had been employed for the measurements. The evaluation was carried out using windows control software from Lascar Electronics.

[0065] Three measurements A-C were carried out on a Styrofoam packaging and two packagings according to the invention. The conditions were as follows:

[0066] Measurement A [0067] Styrofoam packaging with lid [0068] box volume, approximately 22 liters [0069] wall thickness: 30 mm [0070] ambient temperature, approximately 20 C. [0071] cooling elements: 4 gel pads of 600 gram each [0072] pre-tempering of the gel pads to 18 C. [0073] preparation time, approximately 5 minutes (equipping the package with the cooling elements and mounting the measurement sensor in the package) [0074] measurement time: approximately 4 days

[0075] The obtained measurement curve is depicted in FIG. 5.

[0076] Measurement B [0077] packaging with lid (11-layer composite material) [0078] layer arrangement: a) 1 layer air of air-cushioning film with a metalized aluminum foil layer, [0079] b) 9 layers of corrugated paperboard [0080] c) 1 layer air cushion foil with a metalized aluminum foil layer box volume, approximately 37 liters, with a lid, reduced to approximately 22 liters [0081] wall thickness: 30 mm [0082] ambient temperature: approximately 20 C. [0083] cooling elements: 4 gel pads of 600 gram each [0084] pre-tempering of the gel pads to 18 C. [0085] preparation time, approximately 5 minutes (equipping the packages with the cooling elements and mounting the measurement sensor in the package [0086] measurement duration: approximately 4 days

[0087] The obtained measurement curve is depicted in FIG. 6.

[0088] Measurement C [0089] packaging with lid (11-layer composite material) [0090] layer arrangement: a) 1 layer air of air-cushioning film with a metalized aluminum foil layer, [0091] b) 9 layers of corrugated paperboard [0092] c) 1 layer air cushion foil with a metalized aluminum foil layer [0093] box volume, approximately 37 liters, with a lid, reduced to approximately 22 liters [0094] wall thickness: 30 mm [0095] ambient temperature: approximately 21 C. [0096] cooling elements: 3 kg dry ice [0097] preparation time, approximately 5 minutes (equipping the packages with the cooling elements and mounting the measurement sensor in the package [0098] measurement duration: approximately 3.75 days

[0099] The obtained measurement curve is depicted in FIG. 7

[0100] As can be seen from the curves, the packaging according to the invention is capable of keeping the temperature level constantly longer under the temperatures required for transport and food. With the same packaging volume and identical wall thickness, no exceeding of the 1 C. mark takes place with the same number of cooling elements in measurement B even after about four days of measurement, while in the Styrofoam packaging in measurement a, the 1 C. mark is already exceeded after approximately two days and after just three days 15 C. prevail in the package. The insulating performance of the packaging according to the invention is therefore better by a factor of about 2 than that of the Stryrofoam from prior art. Measurement C shows that the dry ice temperature can be maintained over a period of three days and only after about 3.5 days, the 0 C. limit is being exceeded.