Bleaching and dyeing; fluid treatment and chemical modification – Wood dyeing process
Patent
1997-06-11
1999-08-24
Liott, Caroline D.
Bleaching and dyeing; fluid treatment and chemical modification
Wood dyeing process
8505, 8611, 8934, D06P 360
Patent
active
059420081
ABSTRACT:
The present invention relates to a method for dyeing wood veneer. The veneer is immersed in a dye bath. The dye is preferably heated to speed up penetration times. The dye bath containing the veneer is then put into pressurized chamber and pressurized to 50-500 psi. The chamber is pressurized until the wood absorbs the amount of color that is desired. When the color is absorbed the pressure is released and the veneer is removed. The veneer is then washed with water until there is no bleeding and then air dried.
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patent: 3959529 (1976-05-01), Winn et al.
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patent: 5171328 (1992-12-01), Trauth et al.
patent: 5480680 (1996-01-01), Vieyra
English language translation of DE 4,316,234, Schweiger, pp. 1-7. Nov. 1994.
Grant & Hackh's Chemical Dictionary, Fifth Edition, McGraw Hill Book Company, p. 632. 1987.
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