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Solid wood coloring method

A dyeing method and technology for solid wood, applied in wood treatment, wood processing equipment, wood treatment details, etc., can solve the problems of easy color loss, slow coloring, etc., to achieve uniform coloring, fast coloring, and reduce uneven dyeing.

Inactive Publication Date: 2018-08-10
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem that the existing technology can only dye the wood with a small veneer thickness, and the coloring is slow and easy to lose color after coloring, the invention provides a solid wood dyeing method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of poplar dyeing method, comprises the following steps:

[0044] (1) Prepare the dye solution: put cochineal in a container, add potassium aluminum sulfate dodecahydrate, add water at 60°C, stir, keep warm at 50°C, and dissolve to prepare a dye solution with a mass percentage concentration of 3%. The bath ratio is 1:3, the mass percentage concentration of cochineal red is 2%, the mass percentage concentration of potassium aluminum sulfate dodecahydrate is 1%, and the pH value of the dyeing solution is adjusted to 6.5-7 with disodium hydrogen phosphate or citric acid ;

[0045] (2) Soak poplar wood with a thickness of 20mm in the dye solution prepared in step (1), keep the temperature of the water bath at 60°C, take it out after soaking for 3h under the action of ultrasonic waves with a power of 200w, then put it into the magnetic field, and change the magnetic field Intensity and direction, the intensity range of the magnetic field is 0-20mT;

[0046] (3) takin...

Embodiment 2

[0054] A kind of dyeing method of radiata pine, comprises the following steps:

[0055] (1) Prepare the dyeing solution: put chrysanthemum yellow in a container, add potassium aluminum sulfate dodecahydrate, add 75°C warm water to moisten it, stir evenly, keep warm at 60°C, dissolve, and prepare a dyeing solution with a mass percentage concentration of 11%. When the bath ratio is 1:6, the mass percentage concentration of chrysanthemum yellow is 4%, the mass percentage concentration of potassium aluminum sulfate dodecahydrate is 7%, and the pH value of the adjusted dye is neutral or weakly acidic;

[0056] (2) Soak radiata pine with a thickness of 20mm in the dyeing solution prepared in step (1), keep the temperature of the water bath at 75°C, take it out after soaking for 4h under the action of ultrasonic waves with a power of 400w, put it into the magnetic field again, and change the magnetic field Intensity and direction, the intensity range of the magnetic field is 20-40mT;...

Embodiment 3

[0065] A kind of poplar dyeing method, comprises the following steps:

[0066] (1) Configure the dye solution: put tartrazine in a container, add potassium aluminum sulfate dodecahydrate, add 72°C water, stir, keep warm at 55°C, dissolve, and prepare a dye solution with a mass percentage concentration of 7%. The bath ratio is 1:4, the mass percentage concentration of tartrazine is 3%, and the mass percentage concentration of potassium aluminum sulfate dodecahydrate is 4%;

[0067] (2) Soak poplar wood with a thickness of 21mm in the dye solution prepared in step (1), keep the temperature of the water bath at 72°C, take it out after soaking for 5h under the action of ultrasonic waves with a power of 300w, then put it into the magnetic field, and change the magnetic field Intensity and direction, the intensity of the magnetic field is 41-60mT;

[0068] (3) taking out the poplar wood obtained in the step (2) and stacking it for 6d at normal temperature and pressure;

[0069] (4...

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PUM

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Abstract

The invention discloses a solid wood coloring method and belongs to the field of wood coloring. The solid wood coloring method comprises the steps that a coloring solution is prepared, solid wood is soaked in the coloring solution, the colored solid wood is taken out and then stacked for 5-7 h at the normal temperature and normal pressure, the colored solid wood processed in the step (3) is driedtill the moisture content is 12% or below, the colored solid wood is conveyed into a drying kiln again and quickly heated to 70-80 DEG C by jetting high-temperature steam for 2-3 h, heat preservationis conducted for 5-6 h, then high-temperature drying is conducted, the maximum temperature is up to 110-115 DEG C and is maintained for 20-25 h, the moisture content of the solid wood is decreased to12% or below, and accordingly high-temperature quick drying of the colored solid wood is completed. According to the solid wood coloring method, the solid wood is colored through food colorants, so that the solid wood meets the national standard, the advantages of high coloring speed, high tinting strength and the like are achieved, and no harm is caused to human bodies.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and in particular relates to a solid wood dyeing method. Background technique [0002] Wood dyeing is a processing technique in which dyes react chemically or physically with wood to make the wood have a certain firm color. Wood staining can improve the visual characteristics and decorative properties of wood, and increase the value of wood use. The dyed wood can be used for building interior decoration and furniture production. Wood itself is a heterogeneous capillary material composed of cellulose, hemicellulose and lignin. Wood cellulose contains rich hydrophilic groups such as hydroxyl (-OH), carboxyl (-COOH), etc. , the dye passes through the wood capillary channel with the aqueous solution, and after being dragged through the cell wall, it can settle on the surface of the fiber and stain the wood. [0003] The dyeing process is adsorption, the dye migrates from the solution to th...

Claims

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Application Information

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IPC IPC(8): B27K5/02B27K5/04C09D15/00
CPCB27K5/02B27K5/04C09D15/00
Inventor 张耀丽王旋王军锋闻靓王卫东高婧淑朱越骅朱玉慧蒯炳斌
Owner NANJING FORESTRY UNIV
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