Process for coloring maple wood and maple veneer
AssigneeStanley Interiors Corporation
InventorDavid P. Maddox
Life of this patent
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Abstract
A chemical mixture containing 40% by weight of sugar in water, approximately 0.4% by weight of a shading agent such as strontium nitrate and approximately 0.06% by weight of a stabilizing agent such as potassium chromate is applied to the surface of hard rock maple or print grade maple veneer. When the surface of the wood is subjected to heat in the range of 100.degree. F. to 900.degree. F. and pressure in the range of 5 psi to 2000 psi the color of wood is charged substantially to approach the reddish color of cherry. The degree of color is varied by adjusting the temperature or amount of shading agent. When an embossing step is to be performed on the wood, the chemical coloring mixture is applied to the surface of the wood and the two steps (embossing and staining) are carried out simultaneously.
Claims2
A process for coloring the surface of hardrock maple and print grade maple veneer to resemble cherry, said process comprising the steps of:
- (a) coating the surface of said wood with a sugar and water composition comprising:
- (i) water (H.sub.2 O);
- (ii) sugar (C.sub.12 H.sub.22 O.sub.11)--40% by solution weight of H.sub.2 O;
- (iii) strontium nitrate (Sr(NO.sub.3).sub.2)--0.4% by solution weight of H.sub.2 O;
- (iv) potassium chromate (K.sub.2 CrO.sub.4)--0.06% by solution weight of H.sub.2 O;
- and
- (b) subjecting the coated wood to simultaneous application of heat and pressure for a predetermined period of time.
A chemical composition for use in coloring wood when said wood is subsequently subjected to heat and pressure, said composition comprising:
- (a) Water (H.sub.2 O);
- (b) Sugar (C.sub.12 H.sub.22 O.sub.11)--40% by solution weight of H.sub.2 O;
- (c) Strontium Nitrate (Sr(NO.sub.3).sub.2)--0.4% by solution weight of H.sub.2 O;
- (d) Potassium Chromate (K.sub.2 CrO.sub.4)--0.06% by solution weight of H.sub.2 O.
Dependencies are inferred from the claim text.