EP2138288A1 - Mould for the construction or furniture industry, mould assembly and method of manufacturing a mould - Google Patents

Abstract

The mold body (20) has bamboo blades partially comprising of a bamboo-stem separation blade or a bamboo-covering blade, and aligned along orientation of a fiber structure, where the mold body is made of an adhesive agent, which is completely or partially free from methanol. The bamboo-covering blade exhibits an oblong form, and exhibits a breadth of 0.30 meter, in a polished condition. The bamboo blades are arranged parallel to each other. Recesses (40) and/or projections (50) extend in a longitudinal direction (L) of the mold body, and are arranged parallel to each other. Independent claims are also included for the following: (1) a method for manufacturing the mold body for a furniture industry or construction industry (2) a mold body arrangement with multiple mold bodies.

Description

The present invention relates to a molded article with a binder for the construction or furniture industry. Furthermore, the invention relates to a molding arrangement with a plurality of such moldings and a method for producing a shaped body for the construction or furniture industry.

In the construction or furniture industry chipboard or wood fiber boards are widely used. For this purpose, wood materials in the form of wood chips or wood fibers, for example from wood waste, are usually used and mixed with natural or synthetic binders and then pressed into a shaped body, in particular a fiberboard. As a binder for such wood fiber boards are often used urea-containing resins, however, which contain a considerable amount of formaldehyde.

The wood-based materials used have the disadvantage that due to the hygroscopic properties of wood a strong swelling can occur. In a subsequent drying occurs due to the uneven fiber structure an uneven shrinkage of the wood, which then form cracks.

Furthermore, the use of fiber material based on renewable resources is known from the prior art. That's how it describes DE 102 47 711 A1 a method of producing a thermoplastic natural fiber product by treating at least one natural fiber component as well at least one thermoplastic plastic component in a mixing and crushing device. As a natural fiber component, wood, for example in the form of sawdust, wood chips and / or wood pellets, and natural fibers, such as straw, fibers from corn plants and hemp used. Next is from the WO 03/035373 A2 a method for producing a shaped body is known in which particles of a vegetable or animal fiber material are mixed with a thermoplastic or duoplastic plastic and a water-binding biopolymer and / or biomonomer and the raw material mixture is plastically or thermoplastically converted into a molding compound and then the shaped body is formed , Finally, out of the EP 1 175 981 A2 a process for the production of molded parts from fiber or plant material obtained from renewable raw materials in the form of renewable, comminuted raw materials and tannin described as a binder component, wherein the fiber material is mixed with the binder, compacting the resulting mixture in a perforated mold and charged with a heated gas becomes. When fiber or plant material gehäxeltes cereal straw or crushed shives of hemp or flax, sisal or coconut are used.

In view of the increasingly stringent regulations, the harmful effects of the binders on the environment and due to the ever more expensive raw material resources, such as wood, solutions are sought, which can reduce or avoid such disadvantages. In addition, these solutions should not cause disadvantages in terms of the other properties of previous moldings, that is, in particular with regard to the load capacity and in terms of weight.

The invention has for its object to provide simple and inexpensive to produce molded body for the construction or furniture industry, a suitable mold assembly and an associated manufacturing process, which can be largely dispensed with wood materials, but at the same time Requirements for such moldings, in particular with regard to the strength, the weight and the swelling behavior can be met.

To solve this problem, a molding for the construction or furniture industry is proposed, which is made of a binder and bamboo leaves.

The term "shaped body" is understood in particular to mean a plate-shaped body which can be produced by a suitably designed molding tool, for example by means of extrusion or by pressing.

Bamboo leaves are a highly available and renewable resource. In a preferred embodiment, the bamboo leaves at least partially or completely comprise bamboo bracts or bamboo stalk sheaths. Thus, the amount of bamboo leaves used for the shaped body can be used partially or completely from bamboo bracts. These bamboo bracts may also be referred to as sheath blades.

In a preferred embodiment, therefore, not the stalk of the bamboo plant, but the leaves at least partially enclosing the straw for the protection of the straw bamboo, which are referred to in the context of the present invention as bamboo husks, bamboo Halmscheiden leaves or Halmscheidenblätter, for the inventive molding, the mold assembly and the manufacturing process used or used. Preferably, the bamboo leaves comprise at least in part bamboo sheath blades and / or bamboo shells. In particular, the bamboo leaves are made from these bamboo hemisot leaves and / or bamboo cladding. In other words, the bamboo leaves are preferably those bamboo sheath blades and / or bamboo shells.

In the course of its growth, the bamboo that falls under the grass species forms bracts or sheath blades which have a fibrous structure which extends substantially in the longitudinal direction of the leaf. Furthermore, these bracts / Halmscheidenblätter on a longitudinally elongated shape, which may have, for example, a length of up to 1 m and a width of about 0, 30 m (in the smoothed state). The bracts can almost completely enclose the straw, much like a sleeve, so that a large width for the smoothed sheet results.

The bracts / Halmscheidenblätter are usually rounded rounded at her attached to the stem approach. The bracts comprise the stalk in an area between two nodes (Nodium) of the straw and then extend with their remaining remaining length to the blade tip in a curved course of the stalk upwards. Furthermore, the bracts have a unidirectional fiber structure, that is to say that the leaf fibers extend along the longitudinal direction of the respective sheet.

The portion of the bract between the adjacent nodes of the bamboo stem is particularly preferably used, since this portion has a strong structure with a requirements of the molding body bearing fibrous structure. Compared to the fiber structure of wood, the fibers in bamboo sheaves are substantially aligned along one direction and substantially parallel to one another, which allows high strength values to be achieved for the finished molded article and the molded article assembly.

Furthermore, located in the region of this section on the side facing the stalk of the Hüllblattes a silicon layer, which gives the finished molded body a pearlescent gloss. Especially with the bamboo variety Semiarundiaria fastrosa, the silicon content is high. Due to the size of the bract, the leaves are particularly suitable.

In addition, a weight saving can be achieved. In addition, studies have shown that such bamboo envelopes swell only to a very small extent, and in particular less than wood. In addition, in a subsequent drying, the original shape is recovered and there are no cracks due to the substantially unidirectional fibers. Furthermore, the fibrous structure of the bracts compared to wood has been found to be much better suited, since in wood particles, the fiber structure is oriented in many directions.

In terms of growth, the bracts / sheath blades are repelled when the stalk has reached a corresponding strength and protection by the hull sheet is no longer necessary. This fall of the bracts is usually once a year. These usually dried leaves are preferably used. It is therefore not necessary to cut the bamboo. It can be waited until the bracts fall off and can be harvested. With the present invention, therefore, a natural waste product can be utilized in a simple manner. In particular, it is advantageous that the bamboo cover sheet can be used in its entirety, whereby no previous preparation of the leaves is necessary. Optionally, the still on the plant, not yet dried leaves can be used and dried in drying equipment.

In a preferred embodiment of the shaped body, the bamboo leaves are aligned along the orientation of their fiber structure and arranged next to one another, in particular substantially parallel to one another. Thus, particularly high strength values for the finished manufactured Shaped body can be achieved. On the other hand, less material is needed to achieve a given strength value, which can reduce the molding dimensions.

In a further preferred embodiment, the molding is made of a molding compound with bamboo leaves comminuted to particles and the binder, in particular pressed. In this way, any shape for the shaped body can be produced. For this purpose, the molding compound comprising the particles and the binder can be introduced into a correspondingly shaped molding tool and the molding compound subsequently pressed into the molding. If necessary, fillers, for example from other renewable raw materials, can be added.

In a preferred embodiment, the shaped body is characterized by an additional constituent. By adding an additional constituent, which preferably consists of a renewable raw material, for example, the mechanical strength values can be influenced and / or the costs can be varied depending on the availability and price of the available renewable renewable raw materials.

Advantageously, the ingredients are grasses, especially corn. Alternatively, the additional ingredients are cereals, especially straw, wheat and / or oats. Furthermore, coconut fibers are also suitable as additional constituents. In principle, leaves and / or stems can be used for the additional ingredients.

As binder all conventionally known binders can be used. Preferably, a binder comprising a copolymer is used. In view of the increasingly stringent requirements, a binder proves to be advantageous, which is free of formaldehyde.

In order to prevent the formation of moldings, in particular by pressing, undesirable voids, in a preferred embodiment, the mixture Blähglimmer (vermiculite) and / or mica flour are added.

In a preferred embodiment, the molded body is characterized by a plate-like shape and a plurality of recesses and / or projections. Such a shaped body forms a kind of basic module, on the basis of which a modular system of shaped bodies can be provided. Advantageously, the recesses and / or projections extend in a longitudinal direction of the shaped body and are aligned substantially parallel to one another. For example, the recesses and / or projections may have a substantially square cross-section. Preferably, this cross-sectional shape extends along the longitudinal direction with a constant shape.

In a shaped body arrangement according to the invention having a plurality of shaped bodies, the shaped bodies can be arranged adjacent to one another, overlapping and / or one another. Furthermore, the shaped bodies can be offset from one another at a predetermined angle, preferably offset at right angles to one another.

Furthermore, the shaped bodies can be arranged offset from one another in such a way that the recesses of a first shaped body and the recesses of a second shaped body are directed toward one another or away from one another. Furthermore, a first outer side of the first molded body facing away from the recesses can rest directly on a second outer side of the second molded body or be remote from it.

With the shaped body according to the invention in the sense of a basic module, only one basic shape is needed to any possible plate or wall element in the simplest way to manufacture. The production of this basic element is possible for example by means of extrusion or in the form of stack presses. Furthermore, the recesses allow thermal insulation and / or ventilation of the component or piece of furniture. Furthermore, the recesses or projections of the adjoining shaped bodies can be arranged such that the projection formed by two recesses of a shaped body engages in a recess of the other shaped body to form a tongue and groove connection.

• Bereitstellen von Bambusblättern;
• Benetzen der Bambusblätter mit einem Bindemittel;
• Anordnen der Bambusblätter entlang der Orientierung ihrer Faserstruktur benachbart nebeneinander, und
• Formen des Formkörpers mittels der mit dem Bindemittel versehenen Bambusblätter unter Einwirkung von Druck und Temperatur.

In order to achieve the above object, moreover, there is proposed a method for producing a molded article for the construction or furniture industry by the following steps:

• Providing bamboo leaves;
• Wetting the bamboo leaves with a binder;
• Arranging the bamboo leaves along the orientation of their fibrous structure adjacent to each other, and
• Forming the molding by means of the binder provided with bamboo leaves under the action of pressure and temperature.

In addition to the advantageous properties of the bamboo leaves per se, as explained in detail above, these leaves can also be processed in a simple manner and form by means of the binder to a shaped body. Basically, this is no multiple dipping the bamboo leaves required. In addition, it is a waste product of bamboo, which only needs to be collected from the ground. Furthermore, in the case of a side-by-side and / or diagonally and / or layerwise offset arrangement of the bamboo sheets, particularly high strength values can be achieved for the finished molded article.

In a preferred embodiment of the method, the aforementioned method steps for producing at least one further layer for the shaped body can be repeated.

The wetting can for example be done by immersion.

In a further preferred development, the bamboo leaves are smoothed before wetting. The smoothing of rolled sheets is done using pressure and heat (for example, about 150 ° C). For this purpose, a similar to the ironing method can be used in which strength can be used. Thus, the largely flattened or smoothed leaves can be distributed according to the shape and dimensions of the molding. Furthermore, a visually appealing surface structure for the finished molded body can be achieved.

Furthermore, the bamboo leaves can be dried before and / or after wetting, preferably up to a residual moisture of 10 wt .-%. By drying before wetting the water or moisture content of the bamboo leaves is reduced. By drying after wetting the resulting from the binder water content is completely reduced, which has an advantageous effect on the subsequent molding process under temperature and pressure. In a particularly preferred embodiment, the bamboo leaves are immersed in a copolymer as a binder and so wetted by a kind Precoating with the copolymer. In a subsequent drying, there is the advantage that, in particular due to the non-curing resin in the copolymer, the further processing of the wetted with the binder, dried bamboo leaves must not be made immediately, but can be done later. In this way, there is the particular advantage that the binder-coated bamboo leaves can be stored for any length of time.

In order to prevent any voids in the material structure of the molding in the manufacturing process, portions of expanded mica and / or mica flour can be added.

• Bereitstellen von Bambusblättern;
• Zerkleinern der Bambusblätter zu Partikeln;
• Vermischen der Partikel mit einem Bindemittel, und
• Formen des Formkörpers mittels der mit dem Bindemittel versehenen Partikel unter Einwirkung von Druck und Temperatur.

As an alternative to the above-mentioned method, a further method for producing the molded article for the construction or furniture industry is proposed for achieving the object with the following steps:

• Providing bamboo leaves;
• Crushing the bamboo leaves into particles;
• Mixing the particles with a binder, and
• Forming the molding by means of the particles provided with the binder under the action of pressure and temperature.

With regard to the advantageous effects, reference is made to the above statements on the bamboo leaves, bamboo bracts or bamboo hemisphere leaves, to the above method and to the molding described above. When using the shredded to particles, especially chopped, bamboo leaves diverse geometric shapes for the moldings can be achieved. For this purpose, the molding compound comprising the particles and the binder can be introduced into a correspondingly shaped molding tool and the molding compound subsequently pressed into the molding. If necessary, fillers, for example from other renewable raw materials, can be added.

In a preferred development of this method, an additional constituent of a renewable raw material can be added. Reference is made to the above statements on the former method.

Preferably, the additional ingredients are derived from renewable plants. More preferably, the ingredients are grasses, especially corn. Alternatively, the ingredients may also consist of cereals, in particular of straw, wheat and / or oats. With regard to the binder used, reference is made to the above statements on the molding according to the invention.

In the two methods proposed above for the solution, the bamboo leaves preferably comprise at least in part bamboo sheath blades and / or bamboo shells. In particular, the bamboo leaves are made from these bamboo hemisot leaves and / or bamboo cladding. In other words, the bamboo leaves are preferably those bamboo sheath blades and / or bamboo shells.

Fig. 1

eine Ansicht eines Bambushalm mit einem Bambusblatt in Form eines Bambus-Hüllblattes oder Bambus-Halmscheidenblattes;

Fig. 2

einen Querschnitt durch den Bambushalm mit dem Bambusblatt gemäß Fig. 1;

Fig. 3

eine Ansicht eines geglätteten Bambusblattes;

Fig. 4

einen erfindungsgemäßen Formkörper in Form einer Platte mit einer Vielzahl von Ausnehmungen und Vorsprüngen;

Fig. 5

eine vergrößerte Darstellung des Details V aus Fig. 4;

Fig. 6

eine erfindungsgemäße Formkörperanordnung mit zwei Formkörpern in einer ersten Ausführungsform;

Fig. 7

eine zweite Ausführungsform der Formkörperanordnung, und

Fig. 8

eine dritte Ausführungsform der Formkörperanordnung.

The invention will be further explained with reference to the accompanying drawings. Here are shown schematically:

Fig. 1

a view of a bamboo stick with a bamboo leaf in the form of a bamboo hull or bamboo Halmscheidenblattes;

Fig. 2

a cross section through the bamboo stem with the bamboo leaf according to Fig. 1 ;

Fig. 3

a view of a smoothed bamboo leaf;

Fig. 4

a shaped body according to the invention in the form of a plate having a plurality of recesses and projections;

Fig. 5

an enlarged view of the detail V from Fig. 4 ;

Fig. 6

a shaped body assembly according to the invention with two moldings in a first embodiment;

Fig. 7

a second embodiment of the shaped body assembly, and

Fig. 8

a third embodiment of the molding arrangement.

The FIGS. 1 to 3 show a bamboo stem 100 at least partially surrounding bamboo leaf in the form of a bamboo hull or bamboo Halmscheidenblattes 110. This bamboo hull 110 may also be referred to as Halmscheidenblatt. So far as the following is spoken of the Bam-bus Hüllblatt, also the bamboo Halmscheidenblatt is meant and can be replaced thereby. The total amount of bamboo leaves used may be partially or wholly used in bamboo bracts.

The bamboo cover sheet 110 has a largely unidirectional fiber structure, that is, the sheet fibers extend substantially in the longitudinal direction of the sheet.

The bamboo hull 110 is rounded at its attached to the bamboo stem 100 approach or straight. Furthermore, the bamboo hull 110 is placed around the bamboo stem 100 at least in an area between two nodes 102, 104 of the bamboo stem 100 and then extends with its remaining remaining length to the blade tip in a curved course of the bamboo stem 100 upwards (see Fig. 1, 2 ).

As in the cross section according to Fig. 2 2, the bamboo cover sheet 110 almost completely encloses the bamboo stem 100 in its circumferential direction. As a result, the bamboo cover sheet 100 protects the bamboo stem 100 against external influences. The bamboo bracts 110 have an elongated shape that in the smoothed state (see Fig. 3 ) may, for example, have a length S of up to 1 m and a width R of about 0.30 m.

A portion T of the bamboo cover sheet 110 between the adjacent nodes 102, 104 of the bamboo stem 100 is particularly preferably used for the production of the shaped body, since this portion T has a strong structure with the requirements of the shaped body bill fiber structure. Furthermore, in the region of this section T on the side of the bamboo cover sheet 110 facing the bamboo stem 100 there is a silicon layer which gives the finished shaped body a pearlescent gloss.

As already mentioned above, the bamboo bracts 110 are repelled by the bamboo when the bamboo stem 100 has reached a certain age and strength and is no longer needed to protect the bamboo straw 100. The bamboo hull 110 then detaches from the bamboo stem 100 in the area of the nodes 102, 104. Here are predetermined by the nodes 102, 104 predetermined breaking points 120, 122, to which the sheet 100 then breaks, for example, by the action of wind and drops. The predetermined breaking points 120, 122 are in Fig. 3 in terms of location and indicated by dashed lines to better illustrate the proportions of the dimensions of the bamboo cover sheet 110.

A variety of the above-described bamboo bracts or bamboo hemistillic leaves 110 are used for the production of the molded articles and moldings explained below. The bamboo bracts 110 may be used in their sheet form, preferably smoothed, or as comminuted particles for manufacturing.

Fig. 4 shows a molded body 20 having an outer side 22, an inner side 24 and a side surface 26. The shaped body 20 is formed overall plate-shaped and has a plurality of recesses 40 and projections 50. In other words, the portions of the molded body 20 present between the recesses 40 form the protrusions 50. The recesses 40 and protrusions 50 extend along a longitudinal direction L.

As can be seen in particular from the detail V according to Fig. 5 results, the plate-shaped body 20 has a height H. Further, the projections 50 have a width Y and a depth X. The depth X of the projections 50 corresponds to the depth of the recesses 40. Further, in Fig. 5 in the region of the recesses 40 in each case an axis A in the middle, from which the selected grid dimension, which corresponds to the depth X in the present exemplary embodiment, results. The width of the projections 50 may also have the dimension X or a preferably only slightly smaller or larger value.

The molded body 20 is a basic module, which corresponds to those in the FIGS. 5 to 7 shown embodiments can be used. At the in Fig. 5 The second molded body 30 is identical to the molded body 20 and comprises an outer side 32, an inner side 34 and a side surface 36. Likewise, the molded body 30 comprises recesses 40 and Projections 50. The dimensions H, X and Y correspond to the dimensions of the molded body 20.

The two shaped bodies 20, 30 are arranged on one another such that the recesses 40 of the shaped body 20 are directed away from the recesses 40 of the shaped body 30. Here, the outer side 22 of the molded body 20 is connected to the outer side 32 of the molded body 30. This connection preferably takes place by means of a material connection, for example, by an adhesive. Furthermore, the molded body 20 and the molded body 30 are offset from each other at a predetermined angle α. The angle α is according to Fig. 6 about 90 °. In other words, the recesses 40 or protrusions 50 of the molded body 30 extend in the longitudinal direction L, whereas the recesses 40 or protrusions 50 of the molded body 20 extend in a direction transverse to the longitudinal direction L transverse direction Q. Alternatively, the two shaped bodies 20, 30 could also be aligned parallel to one another in the longitudinal direction L or transverse direction Q.

At the in Fig. 7 shown second embodiment, the shaped body assembly 10 includes the two already in Fig. 5 shown moldings 20 and 30. In contrast to the embodiment according to Fig. 6 are in Fig. 7 the two shaped bodies 20, 30 are arranged relative to one another such that the recesses 40 of the shaped body 20 and the recesses 40 of the shaped body 30 are directed toward one another. Thus, the inner side 24 of the shaped body 20 rests on the inner side 34 of the molded body 30. The outer sides 22 and 32 are each directed outward, whereby a closed upper and lower lateral surface can be achieved. If necessary, the side surface 26 may be provided with a cover, so that a molded body closed from the outside can be produced.

As another embodiment shows Fig. 8 a molding assembly 10, wherein the two molding assemblies 10 from the embodiment according to Fig. 6 lying one above the other and are connected to each other. In the lowest position is the molded body 30. Overlying the molded body 20 is positioned. A further shaped body 30 is located above this shaped body 20. Finally, another shaped body 20 is located in the topmost layer. In the area of the contact areas, the respective shaped bodies are firmly connected to one another, preferably by an adhesive layer. Incidentally, the comments on Fig. 7 corresponding.

The aforesaid shaped bodies 20, 30 are made of a binder and a mixture, the mixture comprising particles of shredded bamboo leaves with a fiber structure oriented in one direction over the single particle. In other words, the fibers of each particle extend substantially along the longitudinal direction of the particle. In other words, the fiber structure of the particles does not substantially comprise fibers oriented transversely to the longitudinal direction of the particles, as is usually the case with wood particles. The shredded bamboo leaves are preferably obtained from the so-called, the bamboo stem surrounding bamboo cladding or bamboo Halmscheidenblättern. After comminution of the bamboo leaves, the particle mixture is mixed with the binder to form a molding compound and then molded from the molding composition of the molding. The molding process is preferably carried out by pressing or by extrusion. The binder preferably comprises copolymer. More preferably, the binder comprises acrylate copolymer. Preferably, the binder is formaldehyde-free or the content of formaldehyde is at least reduced.

In order to prevent any voids in the material structure of the molding in the manufacturing process, the mixture can be mixed with expanding mica and / or mica flour. Furthermore, in further embodiments, the mixture may be admixed with additional constituents from renewable raw materials and, in particular, from renewable plants. Advantageously, the ingredients are selected from the group of grasses or the group of cereals.

To those in the FIGS. 4 to 8 To achieve the shown geometric shape of the moldings 20, 30, a mold with a correspondingly formed cavity is preferably provided. That way you can formed with the recesses 40 and projections 50 plate-shaped structure of the moldings 20, 30 in a simple manner.

The molded body 20, 30 made of the aforementioned material has a low weight and is preferably free of formaldehyde, both with regard to the binder and with regard to the particles used. Furthermore, the bamboo envelopes and / or renewable raw materials required for production, in particular the renewable plants, are available in sufficient quantity. Furthermore, the shaped body 20, 30 and the shaped body assembly 10 due to the cavities formed by the recesses 40 on a good thermal insulation. In addition, the recesses 40 can also serve as ventilation ducts. In addition, the moldings 20, 30 are also characterized by their extremely low susceptibility to swelling, which is much lower in comparison to wood. Finally, the shaped body 20, 30 in itself already has a high strength, in particular a high tensile strength, and can thus be used for components or furniture components used in the construction or furniture industry instead of components based on wood-based materials.

In addition, a basic module is provided with the molded body 20, 30, depending on the desired strength and / or dimension of the component or furniture part to be provided in the in the FIGS. 4 to 8 shown arrangement can be assembled. Arrangements may also be chosen in which the projections 50 of a shaped body engage in the recesses 40 of another shaped body to form a positive connection. In particular, with only partial overlap so a component with the desired length and / or width can be achieved. Depending on the desired thickness and / or strength then several layers of moldings 20, 30 can be arranged one above the other. Finally, the outwardly facing insides 24, 34 or outsides 22, 32 may be provided with a cover, such as a laminate if desired be provided with correspondingly visually appealing surface structure.

LIST OF REFERENCE NUMBERS

10

Mold assembly

20

first molded body

22

outside

24

inside

26

side surface

30

second shaped body

32

outside

34

inside

36

side surface

40

recess

50

head Start

100

bamboo stem

102

node

104

node

110

Bamboo husk

120

Breaking point

122

Breaking point

α

angle

A

axis

H

height

X

depth

Y

width

L

longitudinal direction

Q

transversely

R

width

S

length

T

section

Claims (15)

Shaped body (20, 30) for the construction or furniture industry, which is made of a binder and bamboo leaves. Shaped body (20, 30) according to claim 1, characterized in that the bamboo leaves comprise at least partially bamboo sheath blades or bamboo husks. Shaped body (20, 30) according to claim 1 or 2, characterized in that the bamboo sheets are aligned along the orientation of their fiber structure and lying side by side, in particular substantially parallel to each other, are arranged. Shaped body (20, 30) according to any one of the preceding claims, characterized in that the shaped body is made of a molding compound with bamboo leaves comminuted to particles and the binder, in particular pressed, is. Shaped body (20, 30) according to any one of the preceding claims, characterized by a plate-like shape and a plurality of recesses (40) and / or projections (50), wherein preferably the recesses (40) and / or projections (50) in one Extend longitudinal direction (L) of the shaped body (20, 30) and are aligned substantially parallel to each other. Shaped body arrangement (10) with a plurality of shaped bodies (20, 30) according to one of claims 1 to 5, characterized in that the shaped bodies (20, 30) are arranged adjacent to one another, overlapping and / or one another. Shaped body assembly (10) according to claim 6, characterized in that the shaped bodies (20, 30) at a predetermined angle (α) offset from one another, preferably offset at right angles, are arranged, wherein the shaped bodies (20, 30) are preferably arranged offset from one another in that the recesses (40) of a first shaped body (20) and the recesses (40) of a second shaped body (30) are directed towards or away from one another. Method for producing a shaped body (20, 30) for the construction or furniture industry, having the following steps: - providing bamboo leaves; - wetting the bamboo leaves with a binder; Arranging the bamboo leaves along the orientation of their fibrous structure adjacent to one another, and - Forming of the molding by means of the binder provided with bamboo leaves under the action of pressure and temperature. Method for producing a shaped body (20, 30) for the construction or furniture industry, having the following steps: - providing bamboo leaves; - crushing the bamboo leaves into particles; - mixing the particles with a binder, and - Forming of the molding by means of the particles provided with the binder under the action of pressure and temperature. A method according to claim 8 or 9, characterized in that as bamboo leaves at least partially bamboo sheath blades or bamboo husks are provided. A method according to claim 8 or 10, characterized in that the bamboo leaves are smoothed before wetting. Method according to one of claims 8 to 11, characterized in that the bamboo leaves are dried before and / or after wetting, preferably up to a residual moisture content of 10 wt .-%. Method according to one of claims 8 to 12, characterized in that the steps mentioned in claim 8 for producing at least one further layer for the shaped body are repeated. Method according to one of claims 8 to 13, characterized in that an additional component of a renewable raw material, which preferably consists of a renewable plant, is added. Shaped body (20, 30) according to any one of claims 1 to 5 or method according to any one of claims 8 to 14, characterized in that the binder is partially or completely free of formaldehyde.

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