DE102008029882A1 - Shaped body for the construction or furniture industry, molding arrangement and method for producing a shaped body - Google Patents

Abstract

The invention relates to a molding (20, 30) for the construction or furniture industry, which is made of a binder and bamboo Halmscheidenblättern. A shaped body arrangement (10) comprises a plurality of such shaped bodies (20, 30), which are arranged adjacent to one another, overlapping and / or one another. Furthermore, the invention relates to a method in which a shaped body (20, 30) for the construction or furniture industry is produced using a binder and bamboo Halmscheidenblättern.

Description

The The present invention relates to a binder made with a binder Shaped body for the construction or furniture industry. Furthermore, the invention relates to a molding arrangement with several such moldings and a method for Production of a molding for the construction or Furniture industry.

In The construction or furniture industry is chipboard or fiberboard widespread. For this purpose, usually wood materials in the form of wood chips or wood fibers, for example made of wood waste, used and with natural or synthetic binders and then mixed to a shaped body, in particular a fiberboard, pressed. As a binder for such wood fiber boards are common urea-containing resins, but a considerable proportion contained in formaldehyde.

The used wood materials have the disadvantage that due to the hygroscopic properties of wood a strong sources occur can. In a subsequent drying occurs due to the uneven fiber structure an uneven Dwindling 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 for producing a thermoplastic natural fiber product by treating at least one natural fiber component such as at least one thermoplastic 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. Chopped cereal straw or crushed cockroaches of hemp or flax, sisal or coconut are used as fiber or plant material.

in the Regard to the ever more stringent regulations, the harmful ones Impact of the binder on the environment and due to the ever more expensive Exploiting raw material resources, such as wood, become solutions sought, which can reduce or avoid such disadvantages. In addition, these solutions should not be disadvantages in view of the other properties of previous moldings, that is especially with regard to the load capacity and in terms of weight, effect.

Of the Invention is based on the object, simple and inexpensive producible moldings for the construction or furniture industry, a suitable mold assembly and an associated Specify manufacturing process, wherein on wood materials largely can be dispensed with, but at the same time the requirements for such Shaped body, in particular with regard to the strength, the weight and the swelling behavior can be fulfilled.

to Solution to this problem is a molding for the construction or furniture industry proposed that from a Binder and bamboo Halmscheidenblätter is made.

Under The term "shaped body" is used in particular a plate-shaped body understood by a suitably trained mold, for example by means Extrusion or by pressing, can be produced.

at Bamboo Halm sheath leaves are an in large quantities of available and renewable raw material. It is expressly stated that not the Halm of the bamboo plant but at least partially the straw Protection of the Halme surrounding leaves of the bamboo in the Frame of the present invention as bamboo-Halmscheidenblätter or Halmscheiden sheets, for the shaped body according to the invention, the Molded body assembly and the manufacturing process used or used.

The bamboo under the genus of grasses forms during its growth Halmscheidenblätter, which have a fiber structure which extends substantially in the longitudinal direction of the sheet. Furthermore, these sheath blades have a longitudinal elongated shape, which may have a length of up to 1 m and a width of about 0.30 m (in the smoothed state), for example. The Halmscheiden leaves, the straw, similar to a sleeve, almost completely enclose, so that a large width for the ge smoothed sheet yields.

The Halmscheidblätter are attached to her at the stalk The approach is usually rounded. The sheath blades are in an area between two nodes (Nodium) of the straw attached to the stalk and then extend with its remaining Remaining length to the blade tip in a curved Course from the stalk upwards. Furthermore, the sheath blades have a unidirectional fiber structure, that is, the leaf fibers extend along the longitudinal direction of the respective sheet.

Of the Section of the Halmscheidenblattes between the adjacent nodes The bamboo stem is particularly preferably used as this section a strong structure with one of the requirements of Having shaped body invoice carrying fiber structure. Compared to the fiber structure of wood, the fibers are at Bamboo Halflight Leaves essentially along one Direction and largely aligned parallel to each other, thereby high strength values for the finished manufactured To achieve shaped body and the molding arrangement to let.

Further is located in the area of this section on the side facing the stalk Side of Halmscheidenblattes a silicon layer, the finished Shaped body gives a pearlescent shine. Especially Semiarundiaria fastrosa bamboo contains silicon high. Due to the size of the Halmscheidenblattes the leaves are particularly suitable.

About that In addition, a weight saving can be achieved. In addition Investigations show that such bamboo Halmscheidblätter only to a very small extent and in particular less to swell as wood. In addition, in a subsequent Drying the original shape back and it occurs due to the essentially unidirectional direction Fibers no cracks. Furthermore, the fiber structure of the Halmscheidblätter compared to wood as essential more suitable, because with wood particles the fiber structure is aligned in many directions.

Regarding of growth, the sheath blades are repelled, when the stalk has reached a corresponding strength and protection is no longer required by the Halmscheidenblatt. This Fall of the Halmscheiden leaves usually takes place once in the year. These are usually dried leaves preferably used. It is therefore not necessary to the bamboo cases. It can be waited until the Halmscheiden leaves can fall off and be harvested. With the present Invention can thus be a natural way in a simple way Waste product be recycled. In particular, it is advantageous that the bamboo sheath is used in its entirety can, thus no previous processing of the leaves necessary is. If necessary, they can also be added to the plant used, not yet dried leaves used be dried in dryers.

at a preferred embodiment of the shaped body The bamboo sheath blades are along the orientation aligned with their fiber structure and lying side by side, in particular substantially parallel to each other, arranged. So can particularly high strength values for the finished product Shaped body can be achieved. On the other hand, for the achievement of a given strength value less material needed, which reduces the molding dimensions can be.

at Another preferred embodiment is the shaped body from a molding compound with particles of bamboo shredded bracts and the binder made, in particular pressed. To this Way can be any shape for the molding produce. For this purpose, the Halmscheidenblätter particles and the binder comprising molding compound in a correspondingly shaped Mold introduced and the molding compound subsequently are pressed to the molding. If necessary you can Fillers, for example from other renewable raw materials, be added.

By the addition of an additional ingredient, preferably from a renewable raw material, for example, can the mechanical strength values are influenced and / or the Cost depending on availability and price of available be varied with renewable raw materials.

advantageously, the components consist of grasses, in particular of Corn. Alternatively, there are the additional components from cereals, in particular from straw, wheat and / or oats. Farther Coconut fibers are also suitable as additional ingredients. Basically, for the extra Components leaves and / or stems are used.

When Binders can all be conventionally known Binders are used. Preferably, a copolymer is included Binder used. In view of the increasingly stringent Requirements, a binder proves to be advantageous, the is formaldehyde-free.

Around during molding of the moldings, in particular by pressing, to prevent unwanted cavities may in a preferred embodiment the mixture Blended mica (vermiculite) and / or mica flour are added.

at In a preferred embodiment, the shaped body is characterized by a plate-like shape and a plurality of recesses and / or Protrusions. Such a shaped body forms a kind of basic module, on the basis of which a modular system of moldings can be provided. Advantageously, extend the recesses and / or projections in a longitudinal direction of the shaped body and are substantially parallel to each other aligned. For example, the recesses and / or Projections a substantially square cross-section exhibit. Preferably, this cross-sectional shape extends along the longitudinal direction with the same shape.

at a shaped body arrangement according to the invention with several moldings, the moldings can adjacent, overlapping and / or contiguous be arranged. Furthermore, the shaped body at a predetermined angle to each other, preferably at right angles to each other, be arranged offset.

Farther The moldings can be offset from one another in such a way be arranged that the recesses of a first molded body and the recesses of a second shaped body to each other directed to or away from each other. Furthermore, one of the Recesses facing away from the first outer side of the first molded body directly on a second outer side of the second molded body rest or be away from it.

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

• – Bereitstellen von Bambus-Halmscheidenblättern;
• – Eintauchen der Bambus-Halmscheidenblätter in ein Bindemittel;
• – Anordnen der Bambus-Halmscheidenblätter entlang der Orientierung ihrer Faserstruktur benachbart nebeneinander, und
• – Formen des Formkörpers mittels der mit dem Bindemittel versehenen Bambus-Halmscheidenblätter 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 hemisphere leaves;
• - dipping the bamboo sheath blades into a binder;
• Arranging the bamboo sheath blades along the orientation of their fibrous structure adjacent to one another, and
• - Forming of the molding by means of the binder provided with bamboo Halmscheidenblätter under the action of pressure and temperature.

Next the beneficial properties of the bamboo-hemmed-disc leaves in itself, as explained in detail above These leaves also process easily and form a shaped body by means of the binder. Basically, this is not a multiple immersion the bamboo leaves required. It is also about a waste product of bamboo that has just been collected from the ground must become. Furthermore, due to the juxtaposition bamboo sheath blades especially lying arrangement high strength values for the finished molded body be achieved.

at a preferred embodiment of the method, the aforementioned method steps for producing at least one further layers are repeated for the molding.

at Another preferred development, the bamboo Haimscheidenblätter smoothed before immersion. So can the largely leveled or smoothed leaves according to the shape and dimensions of the molding accordingly be distributed. Furthermore, a visually appealing surface structure can be achieved for the finished molded body.

Furthermore, the bamboo sheath blades may be dried before and / or after immersion. Drying before immersion reduces the water or moisture content of the bamboo sheath blades. By drying after immersion, the water content resulting from the binder is completely reduced, which has an advantageous effect on the subsequent molding process under temperature and pressure. In a particularly preferred embodiment, the bamboo Halmscheidenblätter 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 Halmscheidenblätter must not be made directly, but only to one later date. In this way, there is the particular advantage that the binder-coated bamboo Halmscheidblätter can be stored for any length of time.

Around in the manufacturing process, any voids in the material structure can prevent the molding, shares be added to expanding mica and / or mica flour.

• – Bereitstellen von Bambus-Halmscheidenblättern;
• – Zerkleinern der Bambus-Halmscheidenblätter 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 hemisphere leaves;
• - crushing the bamboo sheath blades 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.

Regarding the advantageous effects on the above statements to the bamboo hemisphere leaves, to the above method and referenced to the above-mentioned molded article. When using the crushed to particles, in particular Chopped, bamboo-hemmed-leaves leaves can various geometric shapes for the moldings be achieved. For this purpose, the Halmscheidenblätter particles and the binder comprising molding compound in a correspondingly shaped Mold introduced and then the molding compound to pressed the molding. If necessary you can Fillers, for example from other renewable raw materials, be added.

at A preferred embodiment of this method can be an additional component be added from a renewable resource. For this purpose is referred to the above statements to the former method. Preferably, the additional ingredients are from renewable plants won. Further preferably, the ingredients are grasses, especially from corn. Alternatively, the ingredients also from cereals, in particular from straw, wheat and / or oats consist. With regard to the binder used is the above Versions of the invention Referenced molded body.

following the invention is with reference to the attached Drawings further explained. Here are shown schematically:

1 a view of a bamboo stem with a bamboo hemisphere leaf;

2 a cross section through the bamboo stem with the bamboo Halmscheidenblatt according to 1 ;

3 a view of a smoothed bamboo Halmscheidenblattes;

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

5 an enlarged view of the detail V from 4 ;

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

7 a second embodiment of the shaped body assembly, and

8th a third embodiment of the molding arrangement.

The 1 to 3 show a bamboo stick 100 at least partially surrounding bamboo hemisphere leaf 110 , The Halmscheiden leaf 110 has a largely unidirectional fiber structure, which means that the leaf fibers extend substantially in the longitudinal direction of the sheet.

The Halmscheiden leaf 110 is at his on the Barbushalm 100 fastened approach usually rounded shaped. Furthermore, the Halmscheidenblatt lies 110 at least in an area between two nodes 102 . 104 of the bamboo straw 100 on 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 way up (see 1 . 2 ).

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

A section T of the Halmscheidenblattes 110 between the neighboring nodes 102 . 104 of the bamboo straw 100 is particularly preferably used for the production of the shaped body, since this section T has a strong structure with the requirements of the shaped body bill fiber structure. Furthermore, in the area of this section T is on the Bambu shalm 100 facing side of the Halmscheidenblattes 110 a silicon layer, which gives the finished molded body a pearlescent shine.

As already mentioned above, the sheath blades become 110 repelled by the bamboo when the bamboo stem 100 has reached a certain age and strength and no longer protects the bamboo stem 100 is needed. The Halmscheiden leaf 110 then dissolves in the area of nodes 102 . 104 from the bamboo stem 100 from. Here are the nodes 102 . 104 Predetermined breaking points 120 . 122 given to which the sheet 100 then, for example, breaks and falls by the action of wind. The predetermined breaking points 120 . 122 are in 3 in terms of location and indicated by dashed lines, the ratios of the dimensions of the Halmscheidenblattes 110 better to clarify.

A plurality of Halmscheidenblättern explained above 110 is used for the production of the below-explained shaped bodies and shaped body arrangements. The sheath blades 110 can be used in their sheet form, preferably smoothed, or as comminuted particles for production.

4 shows a shaped body 20 who is an outside 22 , an inside 24 and a side surface 26 having. The molded body 20 is a total of plates shaped and has a plurality of recesses 40 and projections 50 on. In other words, they form between the recesses 40 existing sections of the molding 20 the projections 50 , The recesses 40 and projections 50 extend along a longitudinal direction L.

As can be seen in particular from the detail V according to 5 results, has the plate-shaped body 20 a height H. Further, the projections 50 a width Y and a depth X on. The depth X of the projections 50 corresponds to the depth of the recesses 40 , Furthermore, in 5 in the area of the recesses 40 centered in each case an axis A drawn, from which the selected pitch, which corresponds to the depth X in the present 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 represents a basic module that corresponds to those in the 5 to 7 shown embodiments can be used. At the in 5 shown first embodiment of a shaped body assembly 10 this includes the shaped body 20 and another shaped body 30 , The second shaped body 30 is identical to the molding 20 formed and includes an outside 32 , an inside 34 and a side surface 36 , Likewise, the shaped body comprises 30 recesses 40 and projections 50 , The dimensions H, X and Y correspond to the dimensions of the molding 20 ,

The two shaped bodies 20 . 30 are arranged one above the other so that the recesses 40 of the molding 20 from the recesses 40 of the molding 30 are directed away. Here is the outside 22 of the molding 20 with the outside 32 of the molding 30 connected. Preferably, this connection is effected by means of a material connection, for example by an adhesive. Furthermore, the molded body 20 and the shaped body 30 α offset from each other at a predetermined angle. The angle α is according to 6 about 90 °. In other words, the recesses extend 40 or projections 50 of the molding 30 in the longitudinal direction L, whereas the recesses 40 or projections 50 of the molding 20 extend in a direction transverse to the longitudinal direction L transverse direction Q. Alternatively, the two moldings could 20 . 30 also be aligned both parallel to each other in the longitudinal direction L or transverse direction Q.

At the in 7 The second embodiment shown comprises the molded body assembly 10 the two already in 5 Shaped body shown 20 and 30 , In contrast to the embodiment according to 6 are in 7 the two shaped bodies 20 . 30 arranged such that the recesses 40 of the molding 20 and the recesses 40 of the molding 30 directed towards each other. Thus lies the inside 24 of the molding 20 on the inside 34 of the molding 30 on. The outsides 22 and 32 are each directed outward, whereby a closed upper and lower lateral surface can be achieved. If necessary, the side surface 26 be provided with a cover, so that when viewed from the outside closed moldings can be produced.

As another embodiment shows 8th a shaped body arrangement 10 in which two molding assemblies 10 from the embodiment according to 6 lying one above the other and are connected to each other. In the lowest position is the molding 30 , Overlying is the molding 20 positioned. Above this shaped body 20 is another molding 30 , Finally, in the uppermost layer there is another shaped body 20 , In the area of the contact surfaces, the respective shaped bodies are firmly connected to one another, preferably by an adhesive layer. Incidentally, the comments on 7 corresponding.

The aforementioned shaped body 20 . 30 are made of a binder and a mixture, wherein the mixture comprises particles of shredded bamboo leaves having 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 stalk surrounding 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 and is formaldehyde-free.

Around in the manufacturing process, any voids in the material structure To prevent the molding, the mixture can be expanded mica and / or Be added to mica flour. Furthermore, in further Embodiments of the mixture additional ingredients from renewable raw materials and especially from renewable plants be mixed. Advantageously, the ingredients are off the group of grasses or group of cereals selected.

To those in the 4 to 8th shown geometric shape of the moldings 20 . 30 To achieve, a mold with a correspondingly formed cavity is preferably provided. In this way you can use the recesses 40 and protrusions 50 trained plate-shaped structure of the moldings 20 . 30 in a simple way.

The molded article made of the aforementioned material 20 . 30 has a low weight and is formaldehyde-free, both in terms of Bin demittel as well as with regard to the particles used. Furthermore, the necessary for the production of bamboo Halmscheidblätter and / or renewable raw materials, especially the renewable plants are available in sufficient quantities. Furthermore, the shaped body 20 . 30 and the molding assembly 10 as a result of through the recesses 40 formed cavities on a good thermal insulation. In addition, the recesses 40 also serve as ventilation ducts. In addition, the moldings are distinguished 20 . 30 also by their extremely low susceptibility to swelling, which is much lower compared to wood. Finally, the shaped body 20 . 30 Considered in itself a high strength, in particular a high tensile strength, and thus can be used for used in the construction or furniture industry components or furniture parts instead of components based on wood-based materials.

In addition, with the molding 20 . 30 a basic module provided depending on the desired strength and / or dimension of the component or furniture part to be provided in the in the 4 to 8th shown arrangement can be assembled. In this case, arrangements can be selected in which the projections 50 a shaped body in the recesses 40 engage 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 be arranged one above the other. Finally, the outward facing insides 24 . 34 or outside 22 . 32 if necessary, provided with a cover, for example a laminate with a correspondingly visually appealing surface structure.

10

Mold assembly

20

first moldings

22

outside

24

inside

26

side surface

30

second moldings

32

outside

34

inside

36

side surface

40

recess

50

head Start

100

bamboo stem

102

node

104

node

110

Bamboo Halmscheidenblatt

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

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10247711 A1 [0004]
• WO 03/035373 A2 [0004]
• EP 1175981 A2 [0004]

Claims (22)

Molded body ( 20 . 30 ) for the construction or furniture industry, which is made of a binder and bamboo Halmscheidblättern. Molded body ( 20 . 30 ) according to claim 1, characterized in that the bamboo sheath blades are aligned along the orientation of their fiber structure and lying side by side, in particular substantially parallel to each other, are arranged. Molded body ( 20 . 30 ) according to claim 1, characterized in that the shaped body is made of a molding composition with particles of bamboo shredded Halmscheidenblättern and the binder, in particular pressed, is. Molded body ( 20 . 30 ) according to one of the preceding claims, characterized by an additional constituent of a renewable raw material. Molded body ( 20 . 30 ) according to one of the preceding claims, characterized by a plate-like shape and a multiplicity of recesses ( 40 ) and / or protrusions ( 50 ). Molded body ( 20 . 30 ) according to one of the preceding claims, characterized in that the recesses ( 40 ) and protrusions ( 50 ) in a longitudinal direction (L) of the shaped body ( 20 . 30 ) and are aligned substantially parallel to each other. Molded body ( 20 . 30 ) according to one of the preceding claims, characterized in that the recesses ( 40 ) and / or before jumps ( 50 ) have a substantially square cross-section. Shaped body arrangement ( 10 ) with a plurality of shaped bodies ( 20 . 30 ) according to one of claims 5 to 7, characterized in that the shaped bodies ( 20 . 30 ) are adjacent to each other, overlapping and / or arranged on top of each other. Shaped body arrangement ( 10 ) according to claim 8, characterized in that the shaped bodies ( 20 . 30 ) offset at a predetermined angle (α) to each other, preferably at right angles, are arranged. Shaped body arrangement ( 10 ) according to claim 8 or 9, characterized in that the shaped bodies ( 20 . 30 ) are offset from one another in such a way 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 each other. Shaped body arrangement ( 10 ) according to one of claims 8 to 10, characterized in that one of the recesses ( 40 ) facing away from the first outer side ( 22 ) of the first shaped body ( 20 ) directly on a second outside ( 32 ) of the second shaped body ( 30 ) or away from it. Process for producing a shaped article ( 20 . 30 ) for the construction or furniture industry, comprising the following steps: - providing bamboo hemisphere leaves; - dipping the bamboo sheath blades into a binder; Arranging the bamboo sheath blades along the orientation of their fibrous structure adjacent to one another, and forming the shaped body by means of the bamboo sheath blades provided with the binder under the action of pressure and temperature. Process for producing a shaped article ( 20 . 30 ) for the construction or furniture industry, comprising the following steps: - providing bamboo hemisphere leaves; - crushing the bamboo sheath blades into particles; Mixing the particles with a binder, and shaping the shaped article by means of the particles provided with the binder under the action of pressure and temperature. Method according to claim 12, characterized in that that the bamboo stalk sheath leaves before dipping be smoothed. Method according to claim 12 or 14, characterized that the bamboo sheath leaves before and / or after Dipping to be dried. A method according to claim 12 or 14 or 15, characterized characterized in that the steps mentioned in claim 12 for the production at least one further layer for the molding be repeated. Method according to one of claims 12 to 16, characterized in that expanded mica and / or mica flour be mixed. Method according to one of claims 12 to 17, characterized in that an additional constituent of a renewable Raw material is added. Molded body ( 20 . 30 ) according to one of claims 4 to 7 or method according to claim 18, since characterized in that the additional constituent consists of a renewable plant. Molded body ( 20 . 30 ) according to claim 19 or method according to claim 19, characterized in that the additional constituent consists of a grass, in particular of maize. Molded body ( 20 . 30 ) according to one of claims 19 or 20 or method according to one of claims 19 or 20, characterized in that the additional constituent of cereals, in particular of straw, wheat and / or oats, consists. Molded body ( 20 . 30 ) according to one of claims 1 to 7 or process according to one of claims 12 to 21, characterized in that the binder is free of formaldehyde.