8results about "Wood heating" patented technology

Disclosed is a process for the production of coloured acetylated wood. Herein wood is subjected to a wood acetylation treatment and a wood colouring treatment. The wood colouring treatment comprises subjecting the wood to impregnation with a liquid comprising a colouring agent so as to provide impregnated wood, and subjecting the impregnated wood to a drying process to remove liquid from the impregnated wood by evaporation.

The present invention relates to thermal or thermo-mechanical treatment of hygroscopic materials to adjust material properties. The present invention relates to an apparatus for modifying hygroscopic materials. The modification apparatus comprises a modification unit (202) and a fluid container (204) coupled to at least one fluid opening (203) via a control valve (205). The modification apparatus is configured to heat the hygroscopic material in the modification unit (202) to extract water from the hygroscopic material and to direct the fluid from the fluid container through the at least one fluid opening (203) into the modification unit (202) in response to opening of the control valve (205). The modification apparatus further comprises a treatment agent (207) that is added to the fluid, such that the treatment agent is absorbed into the hygroscopic material and modifies it. The treatment agent (207) comprises at least one of the following components: preservatives, dyes, pigments, fragrances, deodorants, insecticides, impregnation components, or flame retardants.

A flame retardant cellulose-based product formed from ingredients comprising : (i) a cellulose-based material selected from paper-based material, wood-based material and bamboo-based material; (ii) a brominated phosphate ester of Formula (la), wherein the brominated phosphate ester of Formula (la) is present in an amount of about 5% to about 20 % by weight of the cellulose- based product; and (iii) a melamine resin selected from partially methylated melamine formaldehyde resin, methylated melamine formaldehyde resin, and methylated high imino melamine resin, having a molecular weight above 150 gr / mole, above 180, above 300, above 400, above 500, above 600, above 700 gr / mole, preferably having a molecular weight of about or above 500 gr / mole, wherein the melamine resin is present in an amount of about 10% to about 20% by weight of the cellulose-based product.

To provide a method for producing modified wood material with high dimensional stability. [Solution] A method for producing modified wood material, comprising: 1) impregnating an untreated wood material with at least one acid selected from citric acid, malic acid, and glutaric acid, and glycerin to obtain a drug-impregnated wood material; and 2) heating the drug-impregnated wood material obtained in step 1.

The application relates to the technical field of bamboo materials, and discloses modified bamboo materials, a preparation method and application thereof, the preparation method of the modified bamboo material comprises the following steps: (1) mixing tetraethyl orthosilicate, a silane coupling agent and anhydrous ethanol, and then adjusting to acidity to obtain a silicon precursor solution; (2) immersing bamboo materials in the silicon precursor solution, and then taking out and drying to obtain mineralized bamboo materials; and (3) carrying out densification treatment on the mineralized bamboo materials to obtain modified bamboo materials. The bamboo materials are subjected to mineralization and densification treatment to improve the rigidity and density of the bamboo materials, reduce vibration response, effectively inhibit vibration, and when the bamboo materials are applied to musical instruments, sound box equipment and the like, sound transmission loss can be more effectively reduced, and acoustic stability can be improved.

Disclosed is coloured acetylated wood of the species Pinus taeda, which is found to provide advantageous colouring properties. Also disclosed is a process for the production of coloured acetylated wood. Herein wood is subjected to a wood acetylation treatment and a wood colouring treatment. The wood colouring treatment comprises subjecting the wood to impregnation with a liquid comprising a colouring agent so as to provide impregnated wood, and removing liquid from the wood, such as by evaporation.