A method of manufacture of medium and high density fibreboard with moisture and mildew resistance and low formaldehyde emission, which includes the steps of: (a) providing wood chips; (b) pre-steaming; (c) refining the wood chips into fibers and adding 250-800 kg/m.sup.3 urea-formaldehyde resin adhesive, mildew inhibiting agent, fireproof bonding agent, nigrosine solution with a mass percentage of nigrosine in absolutely dried fiber of 1-1.2%, 6-8 kg/m.sup.3 refined paraffin and 1.5-2 kg/m.sup.3 curing agent; (d) feeding activated carbon of 100-200 mesh to mix with the fibers and then drying the fibers to a water content between 8-10%; (e) separating qualified fibers to measuring silo; (f) laying the fibers onto a mat formation platform uniformly to form a fiber mat by pre-pressing; (g) pre-heating the fiber mat; and (h) processing continuous hot-pressing to form a raw board. The resulting fiberboard is black in color, has good physical properties and low formaldehyde emission rate.

A method of manufacture of medium and high density fibreboard with moisture and mildew resistance and low formaldehyde emission, which includes the steps of: (a) providing wood chips; (b) pre-steaming; (c) refining the wood chips into fibers and adding 250-800 kg/m.sup.3 urea-formaldehyde resin adhesive, mildew inhibiting agent, fireproof bonding agent, nigrosine solution with a mass percentage of nigrosine in absolutely dried fiber of 1-1.2%, 6-8 kg/m.sup.3 refined paraffin and 1.5-2 kg/m.sup.3 curing agent; (d) feeding activated carbon of 100-200 mesh to mix with the fibers and then drying the fibers to a water content between 8-10%; (e) separating qualified fibers to measuring silo; (f) laying the fibers onto a mat formation platform uniformly to form a fiber mat by pre-pressing; (g) pre-heating the fiber mat; and (h) processing continuous hot-pressing to form a raw board. The resulting fiberboard is black in color, has good physical properties and low formaldehyde emission rate.

The invention relates to a method for producing flexible or elastic wood fiber insulating material products, having the following steps: -providing wood fibers which have been produced in a refiner. -providing multicomponent fibers with an inner and an outer component, said outer component melting or fusing at a melting temperature at which the inner component does not melt or fuse or has not yet melted or fused. -providing a mixture of wood fibers and multicomponent fibers. -heating the mixture to a temperature at which the outer component melts or fuses, andconnecting the multicomponent fibers together and to the wood fibers while cooling the mixture, wherein hardwood fiber bundles, in particular beechwood fiber bundles, are used as the wood fibers, and biodegradable multicomponent fibers are used as the multicomponent fibers.

The invention relates to a method for producing flexible or elastic wood fiber insulating material products, having the following steps: -providing wood fibers which have been produced in a refiner. -providing multicomponent fibers with an inner and an outer component, said outer component melting or fusing at a melting temperature at which the inner component does not melt or fuse or has not yet melted or fused. -providing a mixture of wood fibers and multicomponent fibers. -heating the mixture to a temperature at which the outer component melts or fuses, andconnecting the multicomponent fibers together and to the wood fibers while cooling the mixture, wherein hardwood fiber bundles, in particular beechwood fiber bundles, are used as the wood fibers, and biodegradable multicomponent fibers are used as the multicomponent fibers.

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.

A method for producing a decorated wall or floor panel comprises providing a pourable carrier material, placing the carrier material between two belt-like conveying means, forming the carrier material under the action of temperature to form a web-shaped carrier, compressing the carrier, treating the carrier under action of pressure using a twin belt press, wherein the carrier is cooled within or upstream of the twin belt press, optionally cooling the carrier, optionally applying a decorative subsurface onto at least a portion of the carrier, applying a decoration reproducing a decorative template onto at least a portion of the carrier, applying a protective layer onto at least a portion of the decoration, optionally structuring the protective layer in order to introduce pores and/or the edge region of the carrier in order to form connecting elements, and optionally treating the carrier for electrostatic discharge prior to any one of the above steps.

A method for producing a decorated wall or floor panel comprises providing a pourable carrier material, placing the carrier material between two belt-like conveying means, forming the carrier material under the action of temperature to form a web-shaped carrier, compressing the carrier, treating the carrier under action of pressure using a twin belt press, wherein the carrier is cooled within or upstream of the twin belt press, optionally cooling the carrier, optionally applying a decorative subsurface onto at least a portion of the carrier, applying a decoration reproducing a decorative template onto at least a portion of the carrier, applying a protective layer onto at least a portion of the decoration, optionally structuring the protective layer in order to introduce pores and/or the edge region of the carrier in order to form connecting elements, and optionally treating the carrier for electrostatic discharge prior to any one of the above steps.

The present invention relates to a part of a luggage system, in particular a shell of a hard-shell case or trolley, comprising a natural fiber material. The present invention further relates to a method for the manufacture and a method for the repair of such a part. A part of a luggage system is provided which comprises a fiber-reinforced material, wherein the fiber-reinforced material comprises a natural fiber material and a matrix material. The natural fiber material comprises at least one set of unidirectional fibers which are embedded in and/or impregnated with the matrix material.

A method for making a floor or wall panel has a foamed polymer core. A foamable polymer powder is foamed between two conveyor belts in the forming zone of a steel belt press. The sum of the thicknesses of the two conveyor belts and the total thickness of the layers at the entrance of the steel belt press is less than or equal to the opening of the steel belt press at the entrance of the steel belt press. The sum of the thicknesses of the two conveyor belts and the total thickness of the substrate at the outlet of the steel belt press is equal to the opening of the steel belt press at the outlet of the steel belt press and greater than the sum of the thicknesses of the two conveyor belts and the total thickness of the layers at the entrance of the steel belt press.

A method for making a floor or wall panel has a foamed polymer core. A foamable polymer powder is foamed between two conveyor belts in the forming zone of a steel belt press. The sum of the thicknesses of the two conveyor belts and the total thickness of the layers at the entrance of the steel belt press is less than or equal to the opening of the steel belt press at the entrance of the steel belt press. The sum of the thicknesses of the two conveyor belts and the total thickness of the substrate at the outlet of the steel belt press is equal to the opening of the steel belt press at the outlet of the steel belt press and greater than the sum of the thicknesses of the two conveyor belts and the total thickness of the layers at the entrance of the steel belt press.