Coloration of acetylated wood
AssigneeElectronic for Imaging, Inc.
InventorDavid J. Williams
Life of this patent
Estimating the term…
Abstract
Techniques and products are described for coloring acetylated wood products. An acetylated wood product can be impregnated by a coloring medium within a chamber and the colorant or colorants contained within the coloring medium can be fixed to the acetylated wood product by the application of heat or by application of radio frequency radiation to color any external surface or interior region of the acetylated wood product which has been impregnated by the coloring medium.
Claims36
A method for coloring an acetylated wood product, comprising:
- providing the acetylated wood product in a chamber;
- providing a coloring medium in liquid form containing one or more colorants into the chamber;
- causing the coloring medium to impregnate the acetylated wood product, wherein causing the coloring medium to impregnate the acetylated wood product includes reducing pressure in the chamber to remove air from the acetylated wood product, wherein the coloring medium impregnates the surface and at least some of the interior of the acetylated wood product by replacing the air removed from the acetylated wood product by vacuum impregnation;
- and
- heating the impregnated acetylated wood product to fix the one or more colorants to any exterior surface or any interior region of the acetylated wood product which has been impregnated by the coloring medium.
A method of coloring an interior and an exterior of a chemically modified wood product, comprising:
- providing the modified wood product in a chamber;
- providing a coloring medium in liquid form including one or more colorants into the chamber;
- causing the coloring medium to impregnate the modified wood product and then heating or irradiating the impregnated modified wood product to fix the one or more colorants to any exterior surface or internal region of the modified wood product which has been impregnated by the coloring medium, wherein causing the coloring medium to impregnate the modified wood product includes reducing pressure in the chamber to remove air from the modified wood product, wherein the coloring medium impregnates the exterior surface and at least some of the interior region of the modified wood product by replacing the air removed from the modified wood product by vacuum impregnation.
Dependencies are inferred from the claim text.