A core layer suitable for a multilayer composite including at least one surface layer and one core layer, the surface layer arranged to at least partially cover the core layer and be fixedly connected thereto, wherein the core layer has elements composed of wood, which elements have plate-like regions arranged in zig-zag-shaped fashion, wherein a plate-like zig region of an element with an adjoining plate-like zag region of the element form a common edge between them, in such a way that the wood element of zig-zag-shaped form is formed, wherein elements of zig-zag-shaped form are arranged in the core layer such that two such edges of two different elements cross one another at a non-zero angle, and wherein the two elements are fixedly connected to one another at the crossing point. In one embodiment, a wood element of zig-zag-shaped form may be adhesively bonded to a planar wood element.

A core layer suitable for a multilayer composite including at least one surface layer and one core layer, the surface layer arranged to at least partially cover the core layer and be fixedly connected thereto, wherein the core layer has elements composed of wood, which elements have plate-like regions arranged in zig-zag-shaped fashion, wherein a plate-like zig region of an element with an adjoining plate-like zag region of the element form a common edge between them, in such a way that the wood element of zig-zag-shaped form is formed, wherein elements of zig-zag-shaped form are arranged in the core layer such that two such edges of two different elements cross one another at a non-zero angle, and wherein the two elements are fixedly connected to one another at the crossing point. In one embodiment, a wood element of zig-zag-shaped form may be adhesively bonded to a planar wood element.

A building panel including a balancing layer, the balancing layer including a first wood veneer having a grain direction, a first sub-layer is arranged on a top surface of the balancing layer, the first sub-layer including a first binder, a core arranged on the first sub-layer, a surface layer arranged on the core, the surface layer, wherein a top surface of the surface layer is adapted to be a visible surface of the building panel when installed, wherein an extension of the balancing layer in a direction parallel to the grain direction of the first wood veneer is equal or less than an extension of the core in the direction parallel to the grain direction of the first wood veneer, and wherein the balancing layer is arranged within the extension of the core in the direction parallel to the grain direction of the first wood veneer.

A building panel including a balancing layer, the balancing layer including a first wood veneer having a grain direction, a first sub-layer is arranged on a top surface of the balancing layer, the first sub-layer including a first binder, a core arranged on the first sub-layer, a surface layer arranged on the core, the surface layer, wherein a top surface of the surface layer is adapted to be a visible surface of the building panel when installed, wherein an extension of the balancing layer in a direction parallel to the grain direction of the first wood veneer is equal or less than an extension of the core in the direction parallel to the grain direction of the first wood veneer, and wherein the balancing layer is arranged within the extension of the core in the direction parallel to the grain direction of the first wood veneer.

A seat shell includes a one-piece shaped wooden shell which has a seat part and a backrest part and which in its transition region has a bent portion bent along a bending axis. The shaped wooden shell has a veneer structure including at least nine wood layers glued on top of each other. The wood layers include a top layer at each of the front and rear of the shaped wooden shell, respectively, the top layer made of a wood layer is arranged in the longitudinal direction. The wood layers also include between the top layers a number of middle and outer wood layers arranged in the longitudinal or transverse direction. The shaped wooden shell is upholstered, and has a transversely extending cutout defined by bars at the edge in the transition region and/or the backrest part.

A seat shell includes a one-piece shaped wooden shell which has a seat part and a backrest part and which in its transition region has a bent portion bent along a bending axis. The shaped wooden shell has a veneer structure including at least nine wood layers glued on top of each other. The wood layers include a top layer at each of the front and rear of the shaped wooden shell, respectively, the top layer made of a wood layer is arranged in the longitudinal direction. The wood layers also include between the top layers a number of middle and outer wood layers arranged in the longitudinal or transverse direction. The shaped wooden shell is upholstered, and has a transversely extending cutout defined by bars at the edge in the transition region and/or the backrest part.

Disclosed is a board core of an artificial board, the board core comprising a plurality of groups of core strip units (5), wherein each of the core strip units has a multi-layer structure in the lengthwise direction of a board core; each of the core strip units comprises multiple substrates; each of the substrates comprises a vertical pressure-bearing body (2) extending in the thickness direction of the board core, a horizontal pressure-bearing body (1) extending in the lengthwise direction of the board core, an oblique pulling structure (3) obliquely arranged with respect to the horizontal pressure-hearing body and the vertical pressure-hearing body, and a dual-horizontal pressure-bearing body (12) extending, in the lengthwise direction of the board core; and each of the core strip units is formed by means of sequentially arranging the multiple substrates, and different substrates form different core strip unit structures.

Disclosed is a board core of an artificial board, the board core comprising a plurality of groups of core strip units (5), wherein each of the core strip units has a multi-layer structure in the lengthwise direction of a board core; each of the core strip units comprises multiple substrates; each of the substrates comprises a vertical pressure-bearing body (2) extending in the thickness direction of the board core, a horizontal pressure-bearing body (1) extending in the lengthwise direction of the board core, an oblique pulling structure (3) obliquely arranged with respect to the horizontal pressure-hearing body and the vertical pressure-hearing body, and a dual-horizontal pressure-bearing body (12) extending, in the lengthwise direction of the board core; and each of the core strip units is formed by means of sequentially arranging the multiple substrates, and different substrates form different core strip unit structures.

Provided is an adhesive that effectively utilizes bark and demonstrates superior adhesion performance. The adhesive of the present invention comprises at least one adhesive resin (A) selected from the group consisting of phenolic resin, urea resin, and melamine resin, and finely pulverized bark (B) comprising cellulose nanofibers.

Provided is an adhesive that effectively utilizes bark and demonstrates superior adhesion performance. The adhesive of the present invention comprises at least one adhesive resin (A) selected from the group consisting of phenolic resin, urea resin, and melamine resin, and finely pulverized bark (B) comprising cellulose nanofibers.