초록 ▼

A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing lignin and/or lignin derivatives and a metal, a metal compound, and/or a metal ion and oxidizing and/or macromolecularizing of the lignin and/or lignin derivatives in the wood to fix the

A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing lignin and/or lignin derivatives and a metal, a metal compound, and/or a metal ion and oxidizing and/or macromolecularizing of the lignin and/or lignin derivatives in the wood to fix the metal component in the wood, and wood and woody materials obtained by the treating method. According to the method of the present invention, while effectively utilizing lignins, lignosulfonic acids, or lignosulfonic acid salts, leaching of the metal component can be suppressed to a low level to thereby retain the effects due to the incorporation of the metal components for a prolonged period.

대표청구항 ▼

1. A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing (a) lignin and/or a lignin derivative, (b) a metal, a metal compound, and/or a metal ion and (c) an organic alkalizing agent selected from the group consisting of monoethanolamine, die

1. A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing (a) lignin and/or a lignin derivative, (b) a metal, a metal compound, and/or a metal ion and (c) an organic alkalizing agent selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine and ethylenediamine and then oxidizing and/or macromolecularizing the lignin and/or lignin derivative in the wood to fix the metal component in the wood. 2. The method for treating wood according to claim 1, wherein the metal-containing treating agent contains the metal, metal compound, and/or metal ion in a concentration of 0.5 g/liter or more as metal. 3. The method for treating wood according to claim 1, wherein the metal-containing treating agent contains at least one metal selected from zirconium, titanium, vanadium, chromium, molybdenum, manganese, iron, cobalt, nickel, palladium, copper, silver, zinc, cadmium, aluminum, tin, lead, antimony, calcium, magnesium, strontium, and barium or ions thereof. 4. The method for treating wood according to claim 1, wherein the metal-containing treating agent is prepared by mixing a first agent containing a metal, a metal compound and/or a metal ion and said organic alkalizing agent, and a second agent containing lignin and/or lignin derivatives. 5. The method for treating wood according to claim 1, wherein the oxidizing and/or macromolecularization reaction is accelerated by heating. 6. The method for treating wood according to claim 5, wherein the heating is performed at a temperature within the range of 20 to 300° C. 7. The method for treating wood according to claim 6, wherein the heating is performed at a temperature within the range of 40 to 150° C. 8. The method for treating wood according to claim 1, wherein the oxidizing and/or macromolecularization reaction is performed in the presence of a polyphenol oxidizing catalyst. 9. The method for treating wood according to claim 8, wherein the polyphenol oxidizing catalyst is catechol oxidase, laccase, polyphenol oxidase, ascorbic acid oxidase, bilirubin oxidase or peroxidase. 10. The method for treating wood according to claim 1, wherein the lignin derivative is obtained by crosslinking reaction and/or macromolecularization reaction of lignin or ligninsufonic acid with a phenolic compound and/or an aromatic amine compound. 11. The method for treating wood according to claim 10, wherein, the phenolic compound is at least one compound selected from the group consisting of pyrocatechol, hydroquinone, pyrogallol, gallic acid, tannic acid, and ferulic acid. 12. Wood treated by the method according to any one of claims 1 to 11. 13. A method for producing a woody material containing a metal, a metal compound, and/or a metal ion, characterized by comprising a step in which a raw material wood is treated by the method according to any one of claims 1 to 11. 14. The method for producing a woody material according to claim 13, wherein the raw material wood is laminated lumber, single plate laminate, plywood, particle board, fiber board, or raw materials thereof. 15. A woody material containing a metal, a metal compound and/or a metal ion obtained by the production method according to claim 13. 16. The method for treating wood according to claim 1, wherein the metal-containing treating agent is prepared by mixing a metal, a metal compound, and/or a metal ion and said organic alkalizing agent, and a lignin and/or lignin derivatives.