Process for the staining of wood with aqueous wood stains

Details Process for the staining of wood with aqueous wood stains Process for the staining of wood with aqueous wood stains

C - Chemistry, Metallurgy

09

D

C09D 15/00 (2006.01) B23K 5/02 (2006.01)

Patent

CA 2405196

The present invention relates to a process for the staining of wood, which comprises treating the unstained wood with an aqeous preparation comprising a) at least one dye, and b) at least one dye stabilizer of the formulae (I) or (II) in which G1 and G2, independently of one another, are C1-C4 alkyl or together are pentamethylene, Z1 and Z2 are methyl, or Z1 and Z2 form a bridging member which is unsubstituted or substituted by an ester, ether, hydroxyl, oxo, cyanohydrin, amido, amino, carboxyl or urethane radical, E is oxyl or hydroxyl, and X is an inorganic or organic anion, and the total number of cations h corresponds to the total number of anions j, to a wood stain comprising a dye and a dye stabilizer of the formula (I) or (II), and to the use of this wood stain for the staining of wood.

La présente invention concerne un procédé pour la teinture du bois. Ce procédé consiste à traiter le bois non teint à l'aide d'une préparation aqueuse comprenant : a) au moins une teinture et b) au moins un stabilisateur de teinture selon les formules (I) ou (II). Dans ces dernières, G1 et G2, indépendamment l'un de l'autre sont alkyle C1-C4 ou ensemble représentent pentaméthylène, Z1 et Z2 sont du méthyle, ou Z1 et Z2 forment un élément de liaison qui n'est pas substitué ou est substitué par un ester, éther, hydroxyle, oxo, cyanohydrine, amido, amino, carboxyle ou un radical uréthane, E représente oxyle ou hydroxyle, et X est un anion inorganique ou organique, et le nombre total de cations h correspond au nombre total d'anions j. L'invention traite également d'une teinture pour bois comprenant un colorant et un stabilisateur de teinture selon la formule (I) ou (II), et de l'utilisation de cette teinture pour teindre le bois.

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