PROCESS FOR PRODUCING COMPOSITE PAINTS COMPRISING URUSHIOL EXTRACTS FROM RHUS VERNICIFLUA

Disclosed is a method for preparing a composite paint composition (a composition forming a coating film after the volatilization of a solvent) comprising urushiol extracted from raw lacquer. Specifically, the method comprises the steps of: mixing raw lacquer with an organic solvent and centrifuging the mixture to separate an urushiol layer dissolved in the organic solvent; heating the urushiol layer dissolved in the organic solvent so as to remove the organic solvent and water, thus extracting urushiol; mixing the extracted urushiol with composite paint to prepare a composite coating composition comprising extracted urushiol; and applying the composite paint composition comprising extracted urushiol to the surface of various materials, including wood, various plastics, metals, paper, fabrics or leathers, through various coating processes, including spray coating, roll coating, curtain coating, film coating, printing, dyeing or dipping, and curing the applied composition. Also disclosed are a composite paint composition comprising extracted urushiol, prepared according to said method, and an article coated with the composite paint composition comprising extracted urushiol. The article coated with the lacquer component urushiol, manufactured according to said method, is environment-friendly and beneficial to the health, because the lacquer component has a far- infrared ray-emitting effect, an electromagnetic wave-shielding effect and an excellent antimicrobial effect. L'invention concerne un procédé pour la préparation d'une composition de peinture composite (une composition formant un film de revêtement après l'évaporation d'un solvant) comprenant de l'urushiol extrait de la laque brute. Plus précisément, le procédé comprend les étapes suivantes: mélangeage de la laque brute avec un solvant organique et centrifugation du mélange pour séparer une couche d'urushiol dissoute dans le solvant organique; chauffage de la couche d'urushiol dissous dans le solvant organique visant à supprimer les solvants organiques et l'eau ainsi qu'à extraire urushiol; mélangeage de l'urushiol extrait avec de la peinture composite pour préparer une composition de revêtement composite comprenant des extraits d'urushiol;et application de la peinture composite comprenant de l'urushiol extrait à la surface de divers matériaux, y compris le bois, divers plastiques, des métaux, du papier, des tissus ou des cuirs, au moyen de divers procédés de revêtement, y compris l'application du revê