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Method for changing color permeability of wood

A permeability and wood technology, which is applied in wood treatment, impregnation of wood, wood impregnation, etc., can solve the problems of inability to achieve wood color permeability, etc., and achieve the effect of beautiful color, improved physical and mechanical properties, and good color fastness

Pending Publication Date: 2021-10-29
鼎峰工贸(高唐)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics of these precious woods can be realized through chemical modification, but the wood colors commonly seen on the market are only surface color changes, and cannot achieve the permeability of wood colors

Method used

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  • Method for changing color permeability of wood
  • Method for changing color permeability of wood

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for changing the color permeability of wood, comprising the steps of,

[0035] S1, vacuum dehumidification: put the wet wood after sawing the log into the vacuum dehumidifier, vacuum dehumidify the moisture content of the wood to 8-15%, and set it aside;

[0036] S2, preparation of small molecule impregnation solution;

[0037] S3, small molecule dye immersion; select a suitable small molecule dye, and add small molecule dye during the preparation of the small molecule dipping solution;

[0038] S3, preparation of impregnating solution: a. Put 1.8-2.5 parts of water in the mass-number ratio into the agitator, and raise the temperature to 30-50°C; b. Add 1 part in mass-number ratio of small molecule dye For small molecule impregnating solution, heat the mixed solution to 40-60°C and stir until uniform to make a medicinal solution;

[0039] S4, wood vacuum negative pressure catheter drainage: put the sawn timber with a moisture content of 8-15% in the impregnat...

Embodiment 1-1

[0045] a. Preparation of raw materials for the production of small molecule impregnation solution: the small molecule impregnation solution is composed of the following raw materials in mass fraction ratio: 300 parts of polyoxymethylene (POM), 900 parts of urea, 0.3 parts of sodium carboxymethylcellulose, and 80 parts of ammonia water , 105 parts of melamine, 95 parts of polyvinyl alcohol, 0.9 part of hexamethylenetetramine and 0.5 part of diethylene glycol, 40 parts of borax, 20 parts of boric acid, 15 parts of magnesium chloride, small molecule color changer.

[0046]b. One-time feeding: add polyoxymethylene, polyvinyl alcohol, ammonia water, hexamethylenetetramine, melamine, sodium carboxymethyl cellulose into the reaction kettle according to the ratio of the above parts, and add three-thirds of the total amount of urea first. One part of urea, after stirring well, adjust the pH value to 8.5 with sodium hydroxide;

[0047] c. Secondary urea: heat up to 80-85°C, keep for 10-...

Embodiment 1-2

[0056] The preparation steps of the small molecule impregnating solution include: a. The preparation of raw materials for the production of the small molecule impregnating solution: the small molecule impregnating solution is composed of the following raw materials in mass fraction ratio: 350 parts of polyoxymethylene (POM), 1050 parts of urea, carboxymethyl fiber 0.6 parts of plain sodium, 95 parts of ammonia water, 125 parts of melamine, 115 parts of polyvinyl alcohol, 1.2 parts of hexamethylenetetramine and 0.9 parts of diethylene glycol, 60 parts of borax, 30 parts of boric acid, 5 parts of magnesium chloride, small molecule color change agent.

[0057] b. One-time feeding: add polyoxymethylene, polyvinyl alcohol, ammonia water, hexamethylenetetramine, melamine, sodium carboxymethyl cellulose into the reaction kettle according to the ratio of the above parts, and add three-thirds of the total amount of urea first. One part of urea, after stirring well, adjust the pH value ...

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Abstract

The invention discloses a method for changing the color permeability of wood. The method comprises the steps that S1, conducting vacuum dehumidification; S2, preparing small molecule impregnation liquid; S3, conducting small molecule dye immersion; S4, preparing an impregnation liquid; and S7, conducting secondary drying, specifically, after the surface of the soaked wood is simply washed, putting the wood into a drying kiln to be dried till the water content is 8-12%, and taking the wood out of the kiln for use. The physical, chemical and biological properties of the wood are changed by cross-linking and curing the micromolecule impregnation liquid in the wood, and after the wood is impregnated with the wood impregnation liquid, the wood retains the original natural properties (heat insulation, insulation, temperature regulation and humidity regulation) of the wood, and has excellent properties such as flame retardance, corrosion resistance, bacteria resistance, termite resistance, environmental protection and deformation resistance, the density, hardness and the like of the wood can be increased at will according to user requirements, the free formaldehyde content of a final product meets the national standard E0 level requirement, and the use requirements in the fields of furniture, solid wood floors and the like can be completely met.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and in particular relates to a method for changing the color permeability of 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...

Claims

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Application Information

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IPC IPC(8): B27K3/02B27K5/02B27K3/08B27K5/04B27K3/52B27K3/36B27K3/16B27K3/34B27K3/18
CPCB27K3/0214B27K5/02B27K3/025B27K3/08B27K5/04B27K3/52B27K3/36B27K3/16B27K3/343B27K3/163B27K3/18
Inventor 孙志国孙霄
Owner 鼎峰工贸(高唐)有限公司
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