Disclosed is a process for the treatment of wood strands suitable for the manufacture of OSB boards, in which the wood strands are treated with steam without drying after extraction, the steam being passed over the wood strands at a temperature between 80 C. and 120 C. and a pressure between 0.5 bar and 2 bar. Also disclosed is a process for the production of OSB wood-based boards including the steps of a) producing wood strands from suitable wood logs; b) treating at least part of the wood strands with steam; c) drying the steam-treated wood strands; d) gluing the steam-treated and dried wood strands and gluing the non-steam-treated wood strands with at least one binder; e) scattering the glued wood strands onto a conveyor belt; and f) pressing the glued wood strands into an OSB wood-based board.

Method for manufacturing a single- or multi-layered substrate (9), which is suitable for a floor panel (1), wherein, for forming a substrate layer (9A-9B-9C), thermoplastic material (23A-23B-23C) is strewn, for example, onto a transport device (25), and this strewn thermoplastic material is consolidated under the influence of pressure and/or heat, preferably in a press device (27), characterized in that the thermoplastic material (23A-23B-23C) to be strewn comprises micronized material.

A spreader roll for a distributing device for granular material or fibers, the spreader roll having a load-bearing cylindrical core, and being rotatably mountable to a frame of the distributing device. At least part of the outer circumference of the core is provided with a plastics trimming fitted with bristles and/or pins, the plastics trimming being tubular and being non-destructively detachably mounted to the core and secured against rotation.

A process for the production of OSB wood-based panels including: a) producing wood strands from suitable wood logs; b) treating at least part of the wood strands with steam at a temperature between 80 C. and 120 C. and a pressure between 0.5 bar and 2 bar; c) drying the steam-treated wood strands; d) gluing the steam-treated and dried wood strands and, optionally, gluing the non-steam treated wood strands with at least one binder; e) scattering the glued wood strands onto a conveyor belt; and f) pressing the glued wood strands into an OSB wood-based board. The steam treatment takes place after the wood strands have been produced and made available, or after the wood strands have been sifted and separated according to the use of the wood strands for the middle and top layers of the panel. Also, an OSB wood-based panel made using the process.

This method for manufacturing a high-density strand board enables high-density strand boards to be formed by using about the same press pressure as press pressures required to form strand boards with common densities, so that the high-density strand boards can be produced without using special facilities and equipment. A pretreatment process P2 is performed on strands 5 before pressing. The pretreatment process P2 is comprised of a first treatment process P2a and a subsequent second treatment process P2b. At least one of beating, high-frequency treatment, high-temperature high-pressure treatment, high-water pressure treatment, repeated deaeration and dehydration treatment, and chemical treatment is performed in the first treatment process P2a, and roll pressing or flat press pressing is performed in the second treatment process P2b. A strand board B with a density of 750 to 950 kg/m.sup.3 is formed by using a press pressure of 4 N/mm.sup.2 or less.

An engineered wood based siding, cladding or panel with a microstrand interface layer (MIL) applied to the top of the main strand matrix layers to minimize telegraphing, add rigidity and strength, and provide an improved surface appearance. The MIL comprises microstrands applied to the surface of the strand matrix or mat during production, prior to deposition of a fines layer. The MIL prevents the loss of fines into the strand matrix, and helps prevent or eliminate strand telegraphing.

A sheet manufacturing apparatus capable of suppressing adhesion of defibrated material to the inside of the apparatus is provided. A sheet manufacturing apparatus has a defibrating unit that defibrates into defibrated material feedstock containing fiber; mesh that captures at least part of the defibrated material conveyed from the defibrating unit by gas, and passes the gas; an opening to which the defibrated material captured by the mesh, and gas of a different state than the gas from the defibrating unit, are introduced; and a sheet forming unit that forms a sheet using the defibrated material introduced from the opening.

The present invention provides for methods of manufacturing wood-based composite products, articles of manufacture employed in the manufacturing of wood-based products (e.g., PTFE sheet configured to be attached to platen and/or platen configured to attach to PTFE sheet), systems used in the manufacturing of wood-based products (e.g., platens having PTFE sheet attached thereto), methods of using such articles of manufacture, methods of using such systems, and wood-based products (e.g., OSB, PB, MDF and/or HDF) obtained from such methods.

The invention relates to a process for producing a thermoformable and/or embossable particle/polymer composite using a substrate S based on shredded polymer-coated paper and a thermoplastic polymer P, therewith providing a new method of recycling/upcycling paper waste. Furthermore, a process for the manufacturing of a molded article obtained from the paper-based particle/polymer composite and its use as an element in buildings or in furniture are disclosed.

A thermally fused board manufacturing apparatus includes: a fiberizing section that produces a fiber material by fiberizing a raw material containing fabric; a material supply pipe section that carries the fiber material; a humidifying section configured to humidify the fiber material; a carriage pipe section that adds a material different from the fiber material to the fiber material and carries the material and the fiber material; a mixing section that produces a deposition fiber material by mixing the material and the fiber material, at part of the carriage pipe section; a depositing section that forms a fiber aggregate by depositing the deposition fiber material; a thermal fusing section that forms a thermally fused board by applying heat and pressure to the fiber aggregate; and a controller that controls the humidifying section.