Method of dyeing wood veneer at elevated temperatures and pressu

Details Method of dyeing wood veneer at elevated temperatures and pressu Method of dyeing wood veneer at elevated temperatures and pressu

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.

REFERENCES:
patent: 2052172 (1936-08-01), Frolich
patent: 3900615 (1975-08-01), Dunn, Jr.
patent: 3959529 (1976-05-01), Winn et al.
patent: 3968276 (1976-07-01), Allen
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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