The present invention relates to a reconstituted wood panel, and more particularly to a reconstituted wood panel with natural wood grain and manufacturing method thereof. The reconstituted wood panel with natural wood grain of the present invention is manufactured by peeling or slicing the logs to obtain veneers with thickness of 320 mm, and then impregnating with adhesive and hot pressing. The compression ratio is 10%, and the density is 0.71.3 g/cm3, and the thickness swelling rate is 3.0% and the internal bonding strength is 3.0 MPa. By comparing the sawn wood board of the same tree species, the density of the reconstituted wood panel with natural wood grain is increased by 10% or more, and the thickness swelling rate is reduced by 20% or more, and the internal bonding strength has a growth of 35% or more. The panel of the present invention is manufactured by firstly peeling or slicing to obtain thick veneer(s) with splitting injury, and then impregnating with the adhesive to repair splits of veneers. The panel has advantages of good toughness, high strength, good dimensional stability, low sawline wastage, and short drying time, high production efficiency, low energy consumption and being environmentally friendly.

The present invention relates to a reconstituted wood panel, and more particularly to a reconstituted wood panel with natural wood grain and manufacturing method thereof. The reconstituted wood panel with natural wood grain of the present invention is manufactured by peeling or slicing the logs to obtain veneers with thickness of 320 mm, and then impregnating with adhesive and hot pressing. The compression ratio is 10%, and the density is 0.71.3 g/cm3, and the thickness swelling rate is 3.0% and the internal bonding strength is 3.0 MPa. By comparing the sawn wood board of the same tree species, the density of the reconstituted wood panel with natural wood grain is increased by 10% or more, and the thickness swelling rate is reduced by 20% or more, and the internal bonding strength has a growth of 35% or more. The panel of the present invention is manufactured by firstly peeling or slicing to obtain thick veneer(s) with splitting injury, and then impregnating with the adhesive to repair splits of veneers. The panel has advantages of good toughness, high strength, good dimensional stability, low sawline wastage, and short drying time, high production efficiency, low energy consumption and being environmentally friendly.

The invention relates to a device for depositing veneers on a carrier board. In order to create a device and a method by which veneers can be applied to a carrier board particularly easily, quickly and precisely, provided in the region of an upper end of a transporting device is a veneer magazine, with at least two compartments which are designed to store and supply veneer strips, and with means for transferring the veneer strips from the compartments to the transporting device, wherein the transporting device extends from an upper end obliquely downwards in the direction of a lower end in the region of a transporting plane for the carrier board and is designed to transport at least two individual adjacent veneer strips from the upper end to the lower end and to deposit them on the carrier board.

The invention relates to a device for depositing veneers on a carrier board. In order to create a device and a method by which veneers can be applied to a carrier board particularly easily, quickly and precisely, provided in the region of an upper end of a transporting device is a veneer magazine, with at least two compartments which are designed to store and supply veneer strips, and with means for transferring the veneer strips from the compartments to the transporting device, wherein the transporting device extends from an upper end obliquely downwards in the direction of a lower end in the region of a transporting plane for the carrier board and is designed to transport at least two individual adjacent veneer strips from the upper end to the lower end and to deposit them on the carrier board.

A veneer panel may include a face veneer, a first inner layer bonded to the face veneer, a second inner layer bonded to the first inner layer, and a thermally conductive layer bonded to the second inner layer. The first inner layer and the second inner layer are treated with a flame retardant. The first inner layer is disposed between the face veneer and the second inner layer, and the second inner layer is disposed between the first inner layer and the thermally conductive layer.

A self-adhesive material for a wood board is described. The self-adhesive material is formed of polyolefin film having a melt index is 4 g/10 min (measured at 190 C. and 2.16 kg), and the polyolefin film contains reactive groups with OH groups of the wood for forming self-adhesive properties. Further, a wood board in which the self-adhesive material is used as a coating and/or as a glue-line material is described.

A self-adhesive material for a wood board is described. The self-adhesive material is formed of polyolefin film having a melt index is 4 g/10 min (measured at 190 C. and 2.16 kg), and the polyolefin film contains reactive groups with OH groups of the wood for forming self-adhesive properties. Further, a wood board in which the self-adhesive material is used as a coating and/or as a glue-line material is described.

A wood preforming device that manufactures a crash pad for a vehicle including a real wood sheet is provided. The wood preforming device includes a lower press mold including a debossed portion disposed on a portion of the lower press mold on which a product is to be formed, and a support portion supporting an upper press mold when the lower press mold and the upper press mold are compressed. The support portion has a fixing protrusion fixing the real wood sheet, the upper press mold has an embossed portion corresponding to the debossed portion of the lower press mold. A movable core provided on the debossed portion of the lower press mold guiding the real wood sheet by moving upward from the debossed portion when the upper press mold moves downward, and a steam module spray steam with a preset capacity to an edge portion of the debossed portion.

A method for producing a binder composition without using a compound selected from the class of phenols, is disclosed. The method comprises: (i) heating an aqueous composition comprising lignin and lignin oligomer in the presence of a catalyst at a temperature of 50-95? ? C. for 0.25-5 hours; (ii) mixing a cross-linking agent with the aqueous composition from (i) and heating the same at a temperature of 60-95? C. for polymerizing lignin, lignin oligomers, and cross-linking agent until a binder composition with a predetermined viscosity value is formed; wherein the molar ratio of crosslinking agent to lignin and lignin oligomer is 0.5-1.8.

The present invention provides bonding systems comprising a formaldehyde-based (urea-/melamine-/phenol-/resorcinol-formaldehyde or other combination) and/or a polymeric isocyanate resin system composition for bonding ligno-cellulosic materials to form panels and/or shaped products, which contain a resin hardener, also referred to as resin catalyst, characterised in that the hardener is activated by heat.