WO2011029863A1

WO2011029863A1 - Laminate and packing system produced therefrom

Info

Publication number: WO2011029863A1
Application number: PCT/EP2010/063219
Authority: WO
Inventors: Jeliazko Ganev Keubgen
Original assignee: 3D Composite Gmbh
Priority date: 2009-09-10
Filing date: 2010-09-09
Publication date: 2011-03-17
Also published as: DE102009040718A1

Abstract

The invention relates to a laminate made from reinforced fibres and cellulose, to a method for producing said laminate, to the use of said laminate, a transport palette made from said laminate and to a packing system comprising said transport palette.

Description

Laminate and packaging system made from it

The present invention relates to a laminate of reinforcing fibers and pulp, a process for producing this laminate, the use of the laminate, a transport pallet from the laminate and a packaging system comprising this transport pallet.

Packaging systems and packaging modules have become indispensable in today's everyday life as they are standardized

Shipping companies and trading companies are available and in the

Goods transport plays a major role. Due to their standardized dimensions, they can be picked up and moved, for example by pallet trucks or forklifts. The goods to be transported, such as solar cells, are stacked on top of these packaging systems, such as europallets. The previously used Euro wooden pallets consist of several longitudinally arranged boards, which are interconnected with cross woods and resting on stud feet, which in turn for further stabilization

Crossbars and longitudinal beams have. The production of such Euro wooden pallets is made of good grown wood and is therefore relatively expensive and time consuming. It should also be remembered that Euro-pallets have a high intrinsic weight, which limits their transport capacity and increases their moisture absorption over time.

From EP 01882641 AI a transport pallet is known which in

Essentially constructed from used cardboard tubes.

DE 38 10 089 AI describes a stacking pallet of stone or

Glass fibers and a binder.

DE 885 153 describes a laminate of layer packages of a fibrous material, which is alternatively either paper or glass fiber in the entire laminate.

DE 1 694 281 describes a composite material of 6 layers of cellulose with a surface layer of glass paper, which by depositing

Glass fibers is obtained.

DE 26 42 168 describes a paper material for reinforcement

Contains glass fibers.

DE 32 10 360 AI describes above all in claim 6 a layer

Glass fibers sandwiched between two layers of paper.

DE 698 19 549 T2 describes a high-pressure laminate of a single glass fiber mat with an adjoining layer of kraft paper. DE 34 16 940 A1 describes a paper in which glass fibers are incorporated.

DE 31 15 754 A1 describes a laminated sheet material in which a bundle of glass fibers can also be inserted between two layers of paper material.

Heretofore, cellulose fibers, such as paper, have been reinforced with glass fibers, for example to increase the tensile strength in the direction of the paper or also the tear resistance. So far, there have been only considerations to integrate individual layers of glass fibers in an entire laminate. So far, if cellulosic fibers have been used as the material for transport systems such as pallets, the stability of the pallets has hitherto been attempted to be optimized in that the

Cardboard structures had to be elaborately designed in three dimensions. So far, for example, no compressive strengths have been achieved which achieve the compressive strength of normal European softwood of grade 2 (DIN 1052 / 4.88). In the case of load on pressure parallel to the fiber, a maximum compressive strength of 0.85 kN / cm ^{2 can} build up in the case of this standardized softwood in the event of load, before failure can occur.

Object of the present invention is therefore to provide a material that allows for a much lighter transport systems that reduces moisture absorption and on the other hand, a much higher compressive strength and stability than previously in

Transport materials used materials such as softwood or plastics. This object of the invention is achieved in a first embodiment by a laminate of at least 4 layers, wherein at least two reinforcing fiber layers 1 at least 30 wt.% Reinforcing fibers or reinforcing fiber reinforced

Contain plastic and at least two pulp layers 2

contain at least 30 wt.%, wherein the reinforcing fibers are selected from glass fibers, carbon fibers, steel fibers, aramid fibers and / or ceramic fibers.

With the laminate according to the invention can be as material for example transport systems 11 such as pallets 5, a weight saving of up to 70% compared to wooden pallets at much improved

Pressure resistance (more than 1.45 kN / cm ² possible) achieve. The stability and tear strength or maximum tensile force is significantly improved, for example, compared to wood with the same material thickness.

In addition, the laminate according to the invention absorbs much less moisture than the previous wooden pallets.

All features disclosed below are also in any

Combined with each other revealed, if this makes sense and is not explicitly excluded.

Advantageously, the pulp is selected from waste paper, paper, cardboard and / or cardboard. As a result, the laminate according to the invention can be produced particularly inexpensively.

The layers of the same type are advantageously not directly adjacent to one another and particularly preferably alternate. It has been found that the material properties of the different layers can be particularly well complemented and particularly pressure-resistant and tensile laminates are obtained.

The laminate has, for example, an odd number of layers. Thus, with alternate reinforcing fiber layers 1 and pulp layers 2, the same type of layer may be provided on the outside of the laminate. Preferably, the laminate of the invention is constructed so that the two outermost layers of

Laminate pulp layers 2 are. Overall, the

Laminate according to the invention, for example, at least 6 and independently up to 81 layers, in particular 9 to 51 layers, most preferably 12 to 24 layers. If the number of layers is too small, the flexural strength may be too low and

Compressive strength, for example, for applications such as transport pallets 5 come. If the number of layers is too large, the overall behavior with respect to compressive strength or load-bearing capacity only minimally changes, so that the additional effort due to more layers is not justified. The laminate according to the invention preferably has at least 11 layers in total and of these 6 pulp layers 2 and 5 reinforcing fiber layers 1.

For example, a reinforcing fiber layer 1 according to the present invention contains at least 50% by weight of reinforcing fibers or reinforcing fiber reinforced plastic. In particular, it consists of it. Independently of this, and likewise, the pulp layer 2 according to the present invention may contain, for example, at least 50% by weight of pulp and, in particular, consist of pulp. At least one of the reinforcing fiber layers 1 according to the invention advantageously has a mat of glass fibers, in particular in the form of a nonwoven or a woven fabric. Regardless of and just as preferred, at least one reinforcing fiber layer 1 has a mat made of glass-fiber reinforced plastic, in particular as a nonwoven or as a woven fabric. Very particularly preferably, some reinforcing fiber layers 1 are provided in the same laminate according to the invention

Mats made of glass fibers and different ones

Reinforcing fiber layers Mats made of glass fiber reinforced plastic. The matrix of the glass fiber reinforced plastic may be, for example, polyester resin, epoxy resin and / or polyamide. Of the

Fiber volume fraction in glass fiber reinforced plastic can for

Example between 50 and 70 wt.% Are. The layer thickness of

Reinforcing fiber layer 1 is advantageously between 0.1 and 0.8 mm. If the layer thickness is below the range, then for some applications, no sufficient improvement, for example, the compressive strength is observed. If the layer thickness is above this range, it can lead to an increased brittleness of the

Total laminate come.

For example, between a Zeilstoffschicht 2 and a layer containing a glass fiber mat or a mat

glass fiber reinforced plastic 1 also a mat of aramid fiber (for example, Kevlar®) 1 may be provided.

The layer thickness of the pulp layer 2 is independent of this

advantageously in a range of 0.1 to 0.9 mm. Is that lying

Layer thickness too much below this range, so can at

certain applications observed a decrease in tensile strength become. With a layer thickness above this range, it may come in some applications to reduce the compressive strength.

Preferably, the layers are interconnected with a binder. This binder is, for example, an adhesive, in particular a one-component adhesive or two-component adhesive. By using a binder, the individual layers of the laminate can be reliably and fully interconnected. The

For example, binder is water-soluble and especially one

Binders based on bisphenol A.

The total thickness of the laminate according to the invention is

advantageously in the dried state in a range between 5 and 10 mm. With a total thickness below this range, some applications, such as for example transport pallets, may under certain circumstances result in too low a bearing strength. With a total thickness above this range, some applications, especially with more complicated three-dimensional structures, can no longer be realized with this technology.

The proportion of binder in the laminate of the invention is advantageously in a range of 0, 1 to 10 wt.%. Irrespective of this, the proportion of pulp in the laminate according to the invention is advantageously in a range from 30 to 60% by weight, in particular less than 50% by weight. Regardless, the proportion of the reinforcing fibers or the reinforcing fiber-reinforced plastic in laminate according to the invention is advantageously in a range of 30 to 69.9 wt.%. In a particularly preferred embodiment, the laminate according to the invention comprises 40 to 60 parts by weight of pulp, 20 to 40 parts by weight of reinforcing fibers and 10 to 30 parts by weight of reinforcing fiber reinforced plastic. At this indicated weight ratio, the reinforcing fibers count from the

Reinforcing fiber reinforced plastic not as parts by weight of the reinforcing fibers. Particularly preferred is as

Reinforcing fiber reinforced plastic glass fiber reinforced plastic, also known as "fiberglass" is used

Laminate according to the invention painted on the outside. For this purpose, it is particularly preferably first primed and independently thereof, more preferably several times, in particular twice. For this purpose, lacquers based on polyurethane, PVC or acrylic can be used. The thus, for example, painted on the outside laminate can be waterproof and / or airtight. The paint can for

Example can also be used as the binder. By the

Painting can reduce the moisture absorption to less than 2% by weight.

be reduced (at 10 minutes in boiling water). It can be a paint in high dilution with, for example, at least 99.5 wt.% Solvent, in particular at least 99.9 wt.% Solvent are used, wherein the solvent is in particular water.

In a further embodiment, the object underlying the invention is achieved by a method for producing a laminate according to the invention, characterized in that a total of at least 4 layers selected from

Reinforcing fiber layers 1 and pulp layers 2 bring into contact with each other, after at least one of

clashing surfaces of the layers previously provided with binder, and then the resulting laminate

pressed. Preferably, reinforcing fiber layers 1 and pulp layers 2 are alternately brought into contact with each other. This can be a

particularly pressure-resistant and tensile laminate can be obtained.

The binder is advantageously sprayed on, as in this way a uniform and full-surface distribution of the binder

can be guaranteed.

When contacting the various layers, it is advantageous to use paper having a temperature in the range of 40 to 110 ° C, independently of which glass fibers having a temperature in a range of 55 to 120 ° C and independently binders having a temperature in the range of 60 up to 100 ° C. For example, the temperature of the binder may be selected to be higher than the temperature of the layers. It has surprisingly been found that outside of these temperature ranges, the laminate can not otherwise be deformed or embossed so well immediately after the compression.

During the compression, the total thickness of the laminate is preferably reduced by 2 to 10%. At a compression below this

It can lead to defects that are due to lack of contact of the layers with each other. Pressing above this area can destroy the structures within the individual layers, which may lead to a decrease in the tensile strength or even the compressive strength. For the reinforcing fiber layers 1 is used in

Process according to the invention preferably glass fiber mats and / or mats made of glass fiber reinforced plastic. These mats have, for example, a basis weight in a range of 100 to 500 g / m ² , in particular in a range of 200 to 400 g / m ² . When

Pulp layer is used in the inventive method, for example, waste paper or cardboard. The pulp layer 2 preferably has a basis weight in a range of 300 to 900 g / m ² , in particular in a range of 500 to 700 g / m ² . For these basis weights both for the reinforcing layers 1 and for the pulp layers 2, it has been found that particularly pressure-resistant and tension-resistant laminates according to the invention can be obtained.

The resulting laminate is dried after being pressed, for example. This can - even just in advance - in one

Vacuum drying system, in particular for a period of up to 20 minutes, take place. The residual drying or drying can take place at room temperature for several hours or even several days. The moisture in the laminate can then be 6 to 12%

be.

For example, the resulting laminate is also painted, especially after drying. It is particularly preferable to carry out the coating in an immersion bath, since this makes it possible to ensure that the entire surface of the laminate according to the invention is lacquered. This is important, for example, in order to be able to use the laminate in applications in free weathering. As a paint, for example, a Acrylic-based paint, PCV-based or polyurethane-based paint.

After painting or after drying you can do that

heating the resulting laminate at an air temperature in a range of 200 to 500 ° C for a period in the range of 2 to 20 seconds. Subsequently, for example, the laminate may be at a temperature of less than -50 ° C at least at the surface for a period in the range of 0.1 to 5 seconds, in particular 0.5 to 1.25 seconds, for example, with liquid nitrogen cooling down.

In a further embodiment, the object underlying the invention is achieved by the use of

laminate according to the invention for the production of tubes,

Packaging systems, transport systems, parts of land, water or air vehicles, furniture and parts of buildings. In particular, the laminate of the invention for the production of

Engine shutters or bulletproof doors are used.

In a further embodiment, the object underlying the invention is achieved by a tube 3, in which the wall of the tube 3 consists of the laminate according to the invention.

In a further embodiment, the object underlying the invention is achieved by a method for producing the tube 3 according to the invention, in which the inventive

Manufacturing process of the laminate according to the invention with a conventional spiral winding performs. In a further embodiment, the object underlying the invention is achieved by a plate 4, which from the

laminate according to the invention.

In a further embodiment, the object underlying the invention is achieved by a transport pallet 5 of the laminate according to the invention, wherein the transport pallet 5 has a plate with recesses 6 and cross members 7, wherein the

Wells 6 in designated recesses in the

Crossbeams 8 are added and the wells 6 of the plate 4 and / or the crossbeams 7 are received in support legs 9 or rest on support legs 9.

The recesses 6 may extend parallel to an outer edge of the plate 4 over the entire length of the plate 4 in this direction. The transverse members 7 may be arranged perpendicular to the recesses 6. But it can also be advantageous that the angle of a

Crossbar 7 to a recess 6 more than 10 ° deviates from 90 °. This can also be advantageous for all angles between recesses 6 and cross members 7. The support legs 9 may be formed from tubes 3 according to the invention. The crossbars 7 and regardless of the wells 6 in the plate can be half round. The recesses 8 can be designed in accordance with positive or non-positive. The recesses on the support legs 13 are for the

Crossbeams 7 advantageously a wall thickness deeper than the recesses 13 for the recesses 6 of the plate 4. The edges of the recesses of the support legs 13 to the upper edge of the support legs 9 are rounded, for example. Regardless of the edges recesses of the crossbeams 8 for receiving the wells. 6 the plate 4 be rounded at the transition to the upper edge of the crossbeams. The size of the pallet 5 can be freely designed in principle. For example, the pallet 5 can have any size as desired or even the size of the standard Euro, US, chemical or container pallets. The transport pallet 5 according to the invention may, for example, have at least two transverse members 7 and, independently of them, two recesses 6. For example, two or three transverse members 7 and of which two or three recesses 6 can be provided completely independently thereof. If the transverse members 7 and / or the recesses 6 are semicircular, the outer radius can be in a range of 5 to 7 cm. Otherwise, the

Transport pallet 5 according to the invention be rectangular.

Advantageously, the transport pallet 5 according to the invention is not only rectangular but also has on the peripheral boundary of the plate 4 on at least two of the four sides of a perpendicular to the plate 4 and from the feet 9 upstanding edge 10. As a result, in contrast to previously used Euro pallets and other standard pallets, the cargo can be secured against slipping.

The edge 10 is preferably 3 to 50 cm high, in particular 8 to 12 cm high. The edge 10 is preferably integrally formed, in particular integrally formed, for example, by means of a manufacturing plant for cardboard edge protection around the plate 4. If only two of the four sides are provided with an edge 10, these edges 10 are for example opposite. In particular, however, all four sides of the plate 4 are provided with an edge 10. As a result, the cargo can slip in any of the directions of the transport pallet 5. The depressions 6 of the plate 4 extend, for example, into the edge 10. The depressions 6 can therefore be folded up or folded over, for example, together with the remaining edge 10. In order to avoid stresses, a hole may be provided at the level of the folded edge 17 over the length of the recess 6 away.

The pallet 5 according to the invention consists for example of two

Modules, wherein one module is formed by the plate 4 with the recesses 6 and the other module by the support legs 9 with the crossbars 7. In the second module, the support legs 9 can be glued to the crossbeams 7. Alternatively, all components of the pallet can be glued together.

In a further embodiment, the object on which the invention is based is achieved by a packaging system 11 comprising a transport pallet 5 according to the invention and stackable stacking plates 12 made of the laminate according to the invention and incorporating the

Have base surface of the transport pallet 5 and also at the peripheral boundary of the stacking plates 12 on at least two of the four sides have a perpendicular to the stacking plates 12 and the feet 9 wegstehende edge 10. The transport pallet 5 and the stacking plates 12 are advantageously provided with pins 15 which project beyond the edge 10 and are formed on the inside of the rim 10. It is particularly preferred if the

Stacking plates 12 directly below the pin 15 have a hole 16 in the size of the base of the pin 15 in the wall of the stacking plate 12. The pins 15 advantageously have a rectangular base. In particular, the pins 15 have a length in one Range from 2 to 10 cm. For example, the pins 15 may be formed over the half of the length of the edge 10 and protrude over the edge 10 with respect to the other half of the pin 15. The pins 15 may, for example, have a width in the range of 1 to 5 cm. The thickness of the pins 15 may be independently in a range of 0.2 to 2 cm, for example. Particularly preferably, the pins 15 are as thick as the wall thickness of the edge 10. In particular, the pins 15 are made of the laminate according to the invention. If the base of the transport pallet 5 is rectangular, it is particularly advantageous that in each case two pins 15 are provided on the longitudinal side and a respective pin 15 on the short sides. The pins 15 may also extend over a plurality of stacking plates 12 and the transport pallet 5 away, wherein the pins 15 are then not firmly formed on the wall 10 of the transport pallet 5 or stacking plate 12, but are pushed through several stacking plates 12 to the transport pallet 5. The pins 15 may, for example, down to the bottom of the stacking plates 12 or the

Down the transport pallet 5. In this case, the pins 15, for example, at the lower end, which extends down to the bottom of the stacking plate 12 or the transport pallet 5, the shape of the stacking plate 12 or the transport pallet 5 adapted. If, for example, the edge 10 is integrally formed on the transport pallet 5 there, then the pin 15 is likewise designed with the same rounding, so that it touches the transport pallet 5 as exactly as possible.

The figures show the following:

FIG. 1 shows the transport pallet according to the invention. FIG. 2 a shows a tube according to the invention with its layer structure.

FIG. 2 b shows a panel according to the invention of a laminate according to the invention with its layer structure.

FIG. 3a shows the manner of origin of the edge of the stacking plates according to the invention.

Figure 3b shows similar only without edge on the short sides of the stacking plates.

Figure 3c shows the manner of origin of the edge of the transport pallet according to the invention.

FIG. 4 shows a finished stacking plate in plan view.

FIG. 5 shows a transport pallet with a stacking plate in a stacked form.

Figure 6 shows a rectangular transport pallet with a stacking plate in plan view of the short side.

Ausführunasbeispiele

Example 1: Basic Example for the Preparation of

laminate according to the invention

Waste paper with a basis weight of 600 g / m ² is alternately commercially available with woven glass fiber mats with a Surface weight of 300 g / m ² or commercially available mats made of glass fiber reinforced plastic with a weight per unit area of 300 g / m ² laid on top of each other, after each located at the top

Surface was sprayed with a two-component adhesive. The two-component adhesive used was the T / 440 product from SASPAS SRL based on bisphenol A. The layers were laid on top of each other so that the first and the last layer is a layer of waste paper. When the various layers were superimposed, the temperature of the waste paper was 60 ° C, the temperature of the

Glass fibers or the glass fiber reinforced plastic 60 ° C and the temperature of the binder 70 ° C. Subsequently, the laminate was pressed, so that the layer thickness has reduced by 5%. After drying the resulting laminate, the laminate was passed through

Dipcoating painted with the paint Acripac 1589 SASPAS SRL. When the paint was applied, the temperature of the paint was about 20 ° C. Subsequently, the paint was dried at 25 ° C. for about 15 minutes. Then another 5 min. Were waited. Then the laminate according to the invention was again painted as described above. Before the first painting was a commercial

Primer such as the product Continut of ASPAS SRL applied and 30 minutes before the first coating at

Room temperature dried.

Example 2: Production of a tube according to the invention

laminate according to the invention

With a commercial Spiralwickelanlage was the

Laminate according to the invention as otherwise described in Example 1 produced. A total of 11 layers were applied to each other. Layers of waste paper and commercially available fiberglass mats were always applied alternately. In this case, instead of the outermost and the innermost glass fiber mat in each case a commercially available mat made of glass fiber reinforced plastic was used. The tubes had a wall thickness of 8 mm before compression and 7.6 mm after compression and an outside diameter of 14 cm. The dried and painted tubes showed a compressive strength perpendicular to the tube axis of 1.45 kN / cm ² .

Example 3: Production of plates according to the invention

laminate according to the invention

As already explained in Example 1, a plate according to the invention was produced. A total of 13 layers were applied to each other. The outermost layers were each recycled paper. Always alternately old paper and glass fiber mats were applied to each other. Only the two outermost glass fiber mats and the two innermost glass fiber mats were made by mats

glass fiber reinforced plastic replaced (see also Figure 2 b). The lacquered plates were boiled in water for 10 minutes and, with a plate weight of 6.2 kg, only contained 120 g of water.

In one variant, a layer of a mat of woven aramid fibers (Kevlar®) was provided in the middle of the layers. On the plate was then with a rapid-fire rifle of the type

Kalashnikov fired a whole magazine. Not a single projectile broke through the plate. Example 4 Production of a Transport Pallet According to the Invention from Inventive Laminate

A 110 x 160 cm plate with wells was obtained by first preparing a plate according to Example 3 and, before drying and painting, embossing two half-round wells with an outside radius of 5 cm into the plate lengthwise with a press. In each case a depression along opposite longitudinal edges at a distance of 20 cm from

Provided outside edge of the plate. Subsequently, cones (2 × 1 × 10 cm) were attached as shown schematically in FIG. 3, and pins were molded onto the plate as shown in FIG. 3 by gluing.

Subsequently, using a manufacturing facility for

Card edge guard formed along the fold lines shown in Figure 3 10 cm high edges and connected to each other at the edges with the punched.

The crossbeams were obtained so that initially tubes

were prepared and then cut in half lengthwise. Subsequently, recesses in the cross members were provided at a distance of the recesses in the plate according to the invention to record the plate accordingly. Support feet were provided below the crossings of the crossbeams with the indentations. These support feet were also made like the tubes of the invention. However, the support feet were provided at the top with recesses, so this

Recesses the crossbeams and recesses of the plate

could take, as shown in Figure 1. These pallets were thrown at 30 km / h on an iron wall. After 20 attempts, none of the pallets were broken.

Example 5 Production of the Packaging System According to the Invention from Inventive Laminate

The packaging system was basically similar to the

Tran sport pallet obtained in Example 4 itself. For the stacking plates, however, similar to the transport pallet, without a recess as in FIG. 3, a laminate plate was correspondingly punched and folded and provided with corresponding pins. The resulting stacking plates could be easily stacked on the transport pallet and stacked on each stacking plates. The pins of the lowermost transport pallet or overlying stacking plates were respectively inserted into the hole in the wall of the overlying stacking plate so that the stacked stacking plates could not slip relative to each other.

LIST OF REFERENCE NUMBERS

1 reinforcing fiber layer

2 pulp layer

3 tube

4 plate

5 transport pallet

6 deepening

7 crossbeam Recess in cross-beam support foot

edge

packaging system

stacking plate

Recess on support feet upper edge of the cross-beam spigot

Hole for cones

folding edge

Claims

claims

A laminate of at least 4 layers, wherein at least two reinforcing fiber layers (1) contain at least 30% by weight of reinforcing fibers or reinforcing fiber-reinforced plastic and at least two pulp layers (2) contain at least 30% by weight of pulp, the reinforcing fibers being selected from glass fibers,

Carbon fibers, steel fibers, aramid fibers and / or ceramic fibers.

2. Laminate according to claim 1, characterized in that the pulp is waste paper, paper, cardboard and / or cardboard.

3. Laminate according to one of claims 1 or 2, characterized

characterized in that layers of the same kind are not directly adjacent to each other, and in particular alternate.

4. A process for producing a laminate according to one of claims 1 to 3, characterized in that

a total of at least 4 layers selected from

Reinforcing fiber layers (1) and pulp layers (2) brings into contact with each other, after at least one of

clashing surfaces of the layers previously provided with binder, and

then the resulting laminate is pressed.

5. Use of a laminate according to one of claims 1 to 3 for the production of tubes, packaging systems, transport systems, parts of land, water or aircraft, furniture and parts of buildings.

6. tube (3), characterized in that the wall of the tube (3) consists of the laminate according to one of claims 1 to 3.

7. A method for producing a tube (3) according to claim 6, characterized in that one carries out the method according to claim 4 with a spiral winding machine.

8. plate (4), characterized in that it consists of the laminate according to one of claims 1 to 3.

9. transport pallet (5) from the laminate according to one of

Claims 1 to 3, wherein the transport pallet (5) has a plate (4) with recesses (6) and transverse members (7), wherein the

Wells (6) in designated recesses in the

Crossbeams (8) are accommodated and the depressions (6) of the plate (4) and / or the transverse members (7) in support feet (9)

are included or rest on support feet (9).

10. Transport pallet (5) according to claim 9, characterized in that it is rectangular and at the peripheral boundary of the plate (4) on at least 2 of the four sides of a perpendicular to the plate (4) and of the feet (9) projecting edge ( 5).

11. A packaging system (1) comprising a transport pallet (5) according to claim 10 and stackable stacking plates (12) of the laminate according to one of claims 1 to 3, having the base of the transport pallet (5) and also at the peripheral boundary of the stacking plates (12) on at least 2 of the four sides have a perpendicular to the stacking plates (12) and of the feet (9) protruding edge (10).