Apparatus for and method of coloring wood by-products

Details Apparatus for and method of coloring wood by-products Apparatus for and method of coloring wood by-products

1989-04-14

1990-12-25

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Wood dyeing process

8680, D06P 360

Patent

active

049799606

ABSTRACT:
An apparatus and method for coloring aggregate wood material by directing a flow of material onto vertically spaced, perforate conveyors with each conveyor served by conduits discharging curtains of liquid dye. A drive system for the conveyors includes the provision of driving the conveyors at different speeds to increase aggregate depth for saturation purposes. Conduits of the spray system have oversized orifices directing discharges onto deflectors for curtain formation. Curtain impingement includes the aggregate material in transition in between conveyors. An inclined conveyor and pan returns dye removed from the material to a catch basin.

REFERENCES:
patent: 3839073 (1974-10-01), Hill
patent: 3900615 (1975-08-01), Dunn
patent: 4478896 (1984-10-01), Barnes et al.
patent: 4551191 (1985-11-01), Kock et al.
patent: 4737154 (1988-04-01), Gaines et al.

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