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Log dyeing method

A dyeing method and technology for logs, applied in the field of wood dyeing, can solve the problems of high pressure and difficult to evenly dye wood, and achieve the effects of increasing service life, increasing utilization value, and being widely used.

Inactive Publication Date: 2005-09-28
高凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the prior art, or only thin boards (0.5mm paulownia veneer) and small-sized blocks (poplar pieces of 7×4.5×15.5cm or 4×4×5cm) can be processed; or extremely high Pressure (80-100MPa); Due to the large size of the log, it is difficult to dye the inside of the wood evenly, so there is no better way to dye the whole log

Method used

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  • Log dyeing method

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Embodiment

[0027] In the figure, 1 is material selection and drying; 2 is dyeing, including room temperature dipping and hot-press dyeing; 3 is cleaning; 4 is drying;

[0028] Wood dyeing is a chemical or physical chemical combination of dyes and wood to make the wood have a certain firm color. It is an important means to improve the surface quality of wood, improve the visual characteristics of wood and increase the added value of wood.

[0029] Due to the large thickness, long wood, and thick dyeing depth, it is difficult to dye the wood evenly and thoroughly by the self-permeability of the dyeing solution under conventional conditions. →Atmospheric pressure→Cycle dyeing process", through compressed air pressurization, so that the dye solution can penetrate into the interior of the wood more smoothly.

[0030] The dye penetration process is divided into three stages, that is, the diffusion stage of the dye to the fiber surface, the adsorption stage of the dye on the fiber surface, and ...

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Abstract

The log dyeing method is one circular hot pressing dyeing and normal temperature and pressure dyeing method on log with water content not higher than 8 % and in proper length. The log dyeing process includes the following steps: compounding acid dye aqua; soaking at room temperature for 120-480 min; dyeing at 25-120 deg.c and 10-15 Mpa under stirring for 30-60 min; lowering to room temperature; dyeing at 25-120 deg.c and 10-15 Mpa under stirring for 30-60 min; and so on until reaching the total dyeing time of 600-900 min; washing with water; drying at 25-120 deg.c to water content not higher than 8 %; and discharging. The log dyeing maintains the natural grains of log, raises the density of timber, homogenizes the color of timber, and raises the value of timber.

Description

technical field [0001] The invention belongs to the category of wood dyeing, in particular to a log dyeing method. Background technique [0002] Today's fashion for interior decoration is to return to nature, but with the increasing scarcity of precious wood resources, wood staining has been put on the agenda. [0003] Wood staining is being widely concerned and valued in the field of production research. In the 1960s, there were studies abroad, and in the late 1980s, some people in my country began to explore wood dyeing technology. [0004] The existing technology is to first spin the logs into 0.4-0.6mm thin boards, and then dip them in glue to form the required boards after chemical coloring; although this method improves the added value of the wood and enriches the color of the boards; The process and equipment are cumbersome, the cost increases, and the glued products have environmental protection problems. The glued sheets will gradually peel off over time, affectin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/08B27K5/02
Inventor 高庆山高凯
Owner 高凯
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