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Method for inducing color changing of wood by grafting metal ions

A metal ion and wood technology, applied in wood treatment, wood impregnation, wood impregnation, etc., can solve difficult problems such as wood component structure and color directional control, to improve use value, improve dimensional stability and corrosion resistance , the effect of convenient application

Inactive Publication Date: 2017-04-26
BEIJING FORESTRY UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0003] Existing studies have shown that heat treatment produces conjugated chromogenic structures of lignin and extracts, leading to varying degrees of darkening of wood color, but it is difficult to achieve directional regulation of wood component structure and color

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] Black locust wood, produced in Heilongjiang Province, 6 years old. A sample of 100×40×20 (length×width×thickness) is made, and the chord and radial sides with uniform color are selected as the test surface. FeSO 4 Prepare a solution with a concentration of 10%. Immerse the test piece in the above solution, keep the temperature at 80°C, wash it with water after soaking for 1 hour. Then place it in an oven, and dry it for 12 hours at a constant temperature of 80° C., and the moisture content of the wood after drying is 10%.

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Abstract

The present invention relates to a wood treatment technology, and provides a method for inducing the color changing of a wood. The method comprises: immersing a selected wood in a previously prepared metal ion sulfate solution for 1 h at a temperature of 80 DEG C, carrying out water washing, and drying under a certain condition, wherein the metal ion sulfate solution is any one selected from the sulfate solution of metal ions such as Na<+>, Fe<2+>, Cu<2+> and Mn<2+>, the concentration of the solution is 10%, the heat treatment temperature of the heat treatment process is 80-130 DEG C, preferably 120 DEG C, and the heat treatment time is 8-20 h. With the application of the method of the present invention to treat the wood, the chromatic value of the treated wood is high, the treated wood is dark red or dark yellow, the color is uniform, stable and comfortable, and the use value of the low color quality wood is improved.

Description

technical field [0001] The invention relates to a wood coloring treatment technology and colored wood, belonging to the technical field of wood processing. Background technique [0002] Wood is a renewable and recyclable natural material with beautiful patterns and bright colors. It is the most ideal material for wood products, wood-based panel surface and interior decoration. The color of wood is one of the evaluation indicators of wood surface properties, wood quality and utilization value. With the sharp decline in the production of natural forest wood and precious wood, the quality of secondary forest and plantation wood is far from meeting the needs of wood products, wood-based panel surfaces and interior decoration. Over the years, in order to improve the color quality and higher utilization value of secondary forest and plantation wood, people have optimized the color of wood, such as: "wood staining", "wooden products and wood-based panel surface decoration", "wood ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/02B27K3/16B27K3/22B27K3/26B27K3/20
CPCB27K5/02B27K3/16B27K3/20B27K3/22B27K3/26
Inventor 陈瑶樊永明高建民张骥马姗姗
Owner BEIJING FORESTRY UNIVERSITY
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