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A modification method for high-end wood

A wood and modification technology, applied in wood treatment, wood impregnation, wood impregnation, etc., can solve the problem of few high-end research on wood, and achieve the effect of consistent and uniform color inside and outside the wood, improving performance, and simplifying the process

Inactive Publication Date: 2015-12-16
EVERFIRST WISEFUND TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many ways to realize the chemical modification of wood and improve the properties of wood. However, there are very few researches on the realization of high-end wood through chemical modification and dyeing.

Method used

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  • A modification method for high-end wood
  • A modification method for high-end wood
  • A modification method for high-end wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] One, preparation imitates the wood dyestuff of black walnut color; Two, select birch as test material; Three, select the melamine modified urea-formaldehyde resin (hereinafter referred to as modified resin) that molecular weight is about 500; Four, 0.4 part of black walnut dye, change Mix 40 parts of resin, 44.3 parts of water, 5 parts of ethanol, and 0.3 parts of sodium alkylbenzene sulfonate to make a modified liquid; 5. Vacuum pressure impregnation treatment: vacuumize to a vacuum degree of 0.085 ~ 0.09Mpa, keep for 30min, Use 2.0Mpa in the pressurization stage and keep it for 120 minutes; 6. Dry the treated birch to a moisture content of 10%-12%.

[0022] Among them, the melamine-modified low-molecular-weight urea-formaldehyde resin is synthesized according to the following steps: 1) Add 100 parts of formaldehyde aqueous solution to the reaction kettle successively, adjust the pH to 9.0-10.0 with aqueous sodium hydroxide solution, add 90 parts of melamine, and then h...

Embodiment 2

[0027] The only difference between this embodiment and Example 1 is: 0.4 parts of black walnut dye, 20 parts of modified resin, 54.3 parts of water, 5 parts of ethanol, and 0.3 parts of sodium alkylbenzene sulfonate are uniformly mixed to make a modified liquid; Steps and parameters are exactly the same as in Example 1.

[0028] The performance comparison of the modified wood prepared in this embodiment is shown in Table 2

[0029] Table 2 Comparison of properties of modified wood

[0030]

Embodiment 3

[0032] The only difference between present embodiment and embodiment 1 is: the wood dye of imitation red cherry color is prepared; other steps and parameters are exactly the same as embodiment 1.

[0033] The performance comparison of the modified wood prepared in this embodiment is shown in Table 3

[0034] Table 3 Comparison of properties of modified wood

[0035]

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Abstract

The invention discloses a wood grade-improving modification method. The method comprises the steps that: (1) a wood dye used for imitating high-grade wood color is prepared; (2) wood with wood grain similar to that of high-grade wood but without good color is selected; (3) melamine-modified low-molecular-weight urea-formaldehyde resin is synthesized; (4) the dye prepared in the step (1) and auxiliary agents are added into the resin obtained in the step (3), and the mixture is well mixed; (5) the modification liquid obtained in the step (4) is used for impregnating the wood prepared in the step (2); and (6) after the impregnation treatment, the wood is dried, such that a finished product is obtained. When wood is treated by using the method provided by the invention, with one time of impregnation treatment, application performance of the wood can be improved, and a high-grade wood imitation effect can be achieved. The method provided by the invention is advantaged in simple process and no need of complicated equipment. With the method, wood texture of the treated wood is preserved, inner and outer colors of the wood are consistent and uniform, the color is good, and color fastness is good. In respect of wood performance, the dimension stability is high, physical and mechanical properties of the wood are improved, and the service life of the wood is long.

Description

technical field [0001] The invention relates to a method for chemically modifying wood, in particular to a method for modifying high-end wood. Background technique [0002] With the improvement of people's living standards, the demand for precious woods such as black walnut, teak, and ebony has increased in the decoration and decoration of living rooms. However, natural forest resources are decreasing day by day, and the supply of large-diameter high-quality timber and valuable furniture materials in natural forests is decreasing. In order to meet people's needs and improve the decorative and aesthetic value of wood products, it is necessary to modify and dye wood. Very necessary. Therefore, by dyeing wood, dyeing ordinary wood into a color close to natural precious wood, imitating precious wood, thereby improving the use value of wood and meeting people's requirements for color diversity, not only can make up for the shortage of natural precious wood resources, but also T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/08B27K3/50B27K3/52B27K5/02
Inventor 雷得定周军浩郝丙业
Owner EVERFIRST WISEFUND TECH BEIJING
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