The present invention relates to a process for the batchwise or continuous, preferably continuous production of multilayer lignocellulose materials with a core and with at least one upper and one lower outer layer, comprising the following steps: a) mixing of the components of the individual layers separately from one another, b) layer-by-layer scattering of the mixtures (for the core layer and for the outer layers) to give a mat, c) precompaction after the scattering of the individual layers, d) application of a high-frequency electrical field before, during and/or after the precompaction, and then e) hot pressing,
where, in step a),
for the core, the lignocellulose particles A) [component A)] are mixed with B) from 0 to 25% by weight of expanded plastics particles with bulk density in the range from 10 to 150 kg/m.sup.3 [component B)], C) from 1 to 15% by weight of one or more binders selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [component C)], D) from 0 to 3% by weight of ammonium salts [component D)], E) from 0 to 5% by weight of additives [component E)] and F) from 0.1 to 3% by weight of alkali metal salts or alkaline earth metal salts from the group of the sulfates, nitrates, halides and mixtures of these [component F)],
and for the outer layers, the lignocellulose particles G) [component G)] are mixed with H) from 1 to 15% by weight of one or more binders selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [component H)], I) from 0 to 2% by weight of ammonium salts [component I)], J) from 0 to 5% by weight of additives [component J)] and K) from 0 to 2% by weight of alkali metal salts or alkaline earth metal salts from the group of the sulfates, nitrates, halides and mixtures of these [component K)],
wherein, after step a), the mixture for the core comprises, based on the total dry weight of the mixture of components A) to F) from 3 to 15% by weight of water, the mixture(s) for the outer layers comprise(s), based on the total dry weight of the mixture(s) of components G) to K), from 5 to 20% by weight of water, and the following conditions are met: component F)≧1.1•component K) and [component F)+component D)]≧1.1•component K)+component I

The present invention relates to a process for the batchwise or continuous, preferably continuous production of multilayer lignocellulose materials with a core and with at least one upper and one lower outer layer, comprising the following steps: a) mixing of the components of the individual layers separately from one another, b) layer-by-layer scattering of the mixtures (for the core layer and for the outer layers) to give a mat, c) precompaction after the scattering of the individual layers, d) application of a high-frequency electrical field before, during and/or after the precompaction, and then e) hot pressing,
where, in step a),
for the core, the lignocellulose particles A) [component A)] are mixed with B) from 0 to 25% by weight of expanded plastics particles with bulk density in the range from 10 to 150 kg/m.sup.3 [component B)], C) from 1 to 15% by weight of one or more binders selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [component C)], D) from 0 to 3% by weight of ammonium salts [component D)], E) from 0 to 5% by weight of additives [component E)] and F) from 0.1 to 3% by weight of alkali metal salts or alkaline earth metal salts from the group of the sulfates, nitrates, halides and mixtures of these [component F)],
and for the outer layers, the lignocellulose particles G) [component G)] are mixed with H) from 1 to 15% by weight of one or more binders selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [component H)], I) from 0 to 2% by weight of ammonium salts [component I)], J) from 0 to 5% by weight of additives [component J)] and K) from 0 to 2% by weight of alkali metal salts or alkaline earth metal salts from the group of the sulfates, nitrates, halides and mixtures of these [component K)],
wherein, after step a), the mixture for the core comprises, based on the total dry weight of the mixture of components A) to F) from 3 to 15% by weight of water, the mixture(s) for the outer layers comprise(s), based on the total dry weight of the mixture(s) of components G) to K), from 5 to 20% by weight of water, and the following conditions are met: component F)≧1.1•component K) and [component F)+component D)]≧1.1•component K)+component I

A woody material, where a ratio (HB/HA) between a height (HA) of an absorption peak derived by C−H stretching vibration detected at a wavenumber from 2850 cm-1 to 2950 cm-1 and a height (HB) of an absorption peak derived by skeletal vibration of an aromatic ring detected at a wavenumber from 1480 cm-1 to 1540 cm-1 is 1.10 or less in an ATR spectrum of an inside or a surface of the woody material by an infrared spectroscopic analysis method.

The invention relates to a bamboo floor, in particular to a composite bamboo floor. The composite bamboo floor comprises a floor surface board provided with a body, a pressed surface, a connecting surface connected with the core board, at least one cut surface board side face and surface board end faces, and the core board arranged under the floor surface board and provided with a core board surface connected with the floor surface board, a core board bottom surface, core board side faces and core board end faces, and the positions of the core board side faces or the core board side faces and the surface board side faces are provided with notch structures processed in two sides in the length direction of the composite bamboo floor. The composite bamboo floor is high in strength, high in processing efficiency and low in production cost.

A sheet manufacturing apparatus of the present invention includes a defibrating unit that defibrates a material containing fibers into a defibrated material, and a deposition unit that deposits a defibrated material defibrated by the defibrating unit. The deposition unit includes a material supply port through which the defibrated material from the defibrating unit is supplied, a plurality of opening ports through which the supplied defibrated material passes, and a dwell area disposed between the material supply port and the opening ports so that the defibrated material temporarily dwells in the dwell area. The dwell area allows the defibrated material to temporarily dwell in the dwell area so that a variation amount of the defibrated material that passes through the opening ports becomes smaller than a variation amount of the defibrated material supplied through the material supply port.

A sheet manufacturing apparatus of the present invention includes a defibrating unit that defibrates a material containing fibers into a defibrated material, and a deposition unit that deposits a defibrated material defibrated by the defibrating unit. The deposition unit includes a material supply port through which the defibrated material from the defibrating unit is supplied, a plurality of opening ports through which the supplied defibrated material passes, and a dwell area disposed between the material supply port and the opening ports so that the defibrated material temporarily dwells in the dwell area. The dwell area allows the defibrated material to temporarily dwell in the dwell area so that a variation amount of the defibrated material that passes through the opening ports becomes smaller than a variation amount of the defibrated material supplied through the material supply port.

The present disclosure relates to the technical field of resource recycling and provides a processing method for a waste oriented strand board and waste oriented wood chips, and an oriented strand board preparation method thereof. The processing method for a waste oriented strand board provided in the present disclosure includes the following steps: softening a waste oriented strand board to obtain a softened waste oriented strand board; and flaking the softened waste oriented strand board pieces using a disc flaker to obtain waste oriented wood chips. According to the present disclosure, the waste oriented strand board is softened first to be chipped readily. It is specified in the present disclosure that the disc flaker is used such that relatively intact wood chips can be obtained.

The present disclosure relates to the technical field of resource recycling and provides a processing method for a waste oriented strand board and waste oriented wood chips, and an oriented strand board preparation method thereof. The processing method for a waste oriented strand board provided in the present disclosure includes the following steps: softening a waste oriented strand board to obtain a softened waste oriented strand board; and flaking the softened waste oriented strand board pieces using a disc flaker to obtain waste oriented wood chips. According to the present disclosure, the waste oriented strand board is softened first to be chipped readily. It is specified in the present disclosure that the disc flaker is used such that relatively intact wood chips can be obtained.

A printing device is provided for printing on a workpiece, which preferably comprises at least partially wood, wood fiber containing materials, wood composite materials, veneer, plastic, or a combination thereof. The printing device can include a housing, a holding element arranged on the housing, a print head attached to a first side of the housing, and a first interface. The first interface can communicatively and operatively connect the print head to containers for print media. Further, the printing device can be portable.

A membrane covered panel and a membrane covered panel production method are provided wherein an elastomeric membrane, and preferably, an aqueous elastomeric resin-based membrane, is applied to a finished panel construct, prior to pressing of the membrane covered panel. The method is used to produce panels which can be used in the production of flooring materials, wall panels, furniture, countertops, and the like. The membrane is applied to a transfer film, which transfer film can be removed at any time prior to, or after the pressing operation. The panels produced have a durable but elastic surface which can protect the surfaces of the panel construct. The elastomeric covering on the panel construct also preferably provides a surface which is abrasion resistant, and provides better acoustical properties while providing a soft touch haptic surface.