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Method for changing weight, hardness and internal and external color transparent consistency of soft wood

A wood and weight technology, applied in wood treatment, impregnated wood, wood impregnation, etc., can solve the problems of only changing wood hardness and weight, changing wood weight, hardness, internal and external color permeability, etc., to achieve beautiful color and physical mechanics Improved performance and good color fastness

Inactive Publication Date: 2021-10-22
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

Although the characteristics of these precious woods can be realized through chemical modification, the wood modification commonly seen in the market can only change the color alone, or can only change the hardness and weight of the wood; it cannot change the weight of the wood at the same time. , hardness, internal and external color permeability

Method used

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  • Method for changing weight, hardness and internal and external color transparent consistency of soft wood
  • Method for changing weight, hardness and internal and external color transparent consistency of soft wood

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A method for changing the weight, hardness, and transparent consistency of soft wood, which includes the following steps,

[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 polymer solidification solution;

[0037] S3, small-molecule dye immersion; select a suitable small-molecule dye, and add the small-molecule dye during the preparation of the polymer solidification 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 Polymer solidification solution, heat the mixed solution to 40-60°C, stir until uniform to make a medicinal solution;

[0039] S4, wood vacuum negative pressure catheter drainage: put the sawn timber with a moisture con...

Embodiment 1-1

[0045] The preparation step of polymer solidified liquid comprises: a. The production raw material preparation of polymer solidified liquid: described polymer solidified liquid is made up of the raw material of following mass fraction ratio: polyoxymethylene (POM) 300 parts, 900 parts of urea, carboxymethyl fiber 0.3 parts of plain sodium, 80 parts of ammonia water, 105 parts of melamine, 95 parts of polyvinyl alcohol, 0.9 parts of hexamethylenetetramine and 0.5 parts of diethylene glycol, 300 parts of small molecule color-changing agent;

[0046]b. One-time feeding: Add formaldehyde, polyvinyl alcohol, ammonia water, hexamethylenetetramine, melamine, and sodium carboxymethylcellulose to the reaction kettle according to the ratio of the above parts, and first add three-thirds of the total amount of urea. One part of urea, after stirring well, adjust the pH value to 8.5-9.0 with sodium hydroxide;

[0047] c. Secondary urea: heat up to 80-85°C, keep for 10-30 minutes, then add 1...

Embodiment 1-2

[0056] The preparation step of macromolecule solidified liquid comprises: a. the production raw material preparation of macromolecule solidified liquid: described macromolecule solidified liquid is made up of the raw material of following mass fraction ratio: polyoxymethylene (POM) 350 parts, urea 1050 parts, 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, 00.9 parts of diethylene glycol, and 350 parts of small molecule color-changing agent;

[0057] b. One-time feeding: Add formaldehyde, polyvinyl alcohol, ammonia water, hexamethylenetetramine, melamine, and sodium carboxymethylcellulose to the reaction kettle according to the ratio of the above parts, and first add three-thirds of the total amount of urea. One part of urea, after stirring well, adjust the pH value to 8.5-9.0 with sodium hydroxide;

[0058] c. Secondary urea: heat up to 80-85°C, keep for 10-30...

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Abstract

The invention discloses a method for changing the weight, hardness and internal and external color transparent consistency of soft wood. The method comprises the steps that S1, carrying out vacuum dehumidification; S2, preparing macromolecule curing liquid; S3, carrying out small molecule dye immersion; S4, preparing an impregnation liquid; and S7, carrying out secondary drying: after the surface of soaked wood is simply washed, putting the wood into a drying kiln, drying till the water content is 8-12%, and taking the wood out of the kiln for use. According to the method, the physical, chemical and biological properties of the wood are changed by cross-linking and curing the macromolecular curing liquid in the wood, the wood is treated by using the method, the wood texture feeling of the treated wood is reserved, the inner and outer colors of the wood are consistent and uniform, the color is attractive, and the color fastness is good; and the dimensional stability in the aspect of wood property is improved, the physical and mechanical properties are improved, and the service life of the wood is prolonged. According to the wood treated through the method, transparent color changing can be conducted while transparent hardening is conducted, the texture is highlighted, no formaldehyde is released, and the national environmental protection requirement is 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 weight, hardness, and consistency of internal and external colors of soft 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 o...

Claims

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Application Information

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