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Method for rapidly dyeing wooden veneer by utilizing turmeric powder

A wood veneer, rapid dyeing technology, applied in the field of wood dyeing, can solve the problems of little research and achieve the effect of low equipment requirements, high water fastness, and low destructiveness

Inactive Publication Date: 2018-09-04
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there is a lot of research on its application to food, there is very little research on its application to wood products

Method used

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  • Method for rapidly dyeing wooden veneer by utilizing turmeric powder
  • Method for rapidly dyeing wooden veneer by utilizing turmeric powder
  • Method for rapidly dyeing wooden veneer by utilizing turmeric powder

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Select 3 pieces of walnut veneer (No. 2-1, 2-2, 2-3) and 3 pieces of white oak veneer (No. 2-4, 2-5, 2-6) for staining, and the size of the veneer is 50mm ×60mm×2mm. The dyeing method comprises the following steps:

[0019] (1) Dry the wood veneer at 50°C until the weight does not change;

[0020] (2) Immerse the dried wood veneer in 10% ethanol solution, heat to 85°C and cook for 3 hours, separate the veneers with glass rods to ensure that the dipping liquid is evenly soaked, and seal the container mouth with plastic wrap to prevent ethanol Evaporate; then pull out, wash with distilled water, put into drying kiln and dry to moisture content 8%;

[0021] (3) Preparation of turmeric powder extract: immerse turmeric powder in an ethanol solution with a concentration of 80%, the ratio of solid to liquid is 1:6, extract for 3 hours at a temperature of 70° C., and then centrifuge to obtain a solution that is turmeric powder extract. Immerse the dried wood veneer in step ...

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Abstract

The invention relates to a method for rapidly dyeing a wooden veneer by utilizing turmeric powder. The method comprises the following steps: firstly, drying the wooden veneer at 45 to 55 DEG C until the weight is constant; then immersing the dried wooden veneer into an ethanol solution; heating and steaming; then fishing out the wooden veneer; after washing the wooden veneer with distilled water,putting the wooden veneer into a drying kiln and drying until the moisture content is 6 to 10 percent; immersing the dried veneer into a turmeric powder extracting solution; after immersing for 2 to 5h, fishing out the veneer; washing and drying. According to the method provided by the invention, a natural dyestuff turmeric is used as a dyeing agent; the natural dyestuff is biodegradable and doesnot contain substances harmful to human bodies; the turmeric also has an antibacterial effect and is healthy and environmentally friendly. The dyeing method provide by the invention has low requirements on equipment, is easy to operate and has strong controllability, so that the dyeing method can be used for large-scale production; the dyed veneer has a bright and full color and a dyeing solutionhas high water fastness and strong dyeing performance; the dyeing method has extremely small damages to wood and no formaldehyde is released; the wooden veneer has a lasting color and antibacterial performance and can be used for preparing wooden tableware and wooden toys for children.

Description

technical field [0001] The invention relates to a method for rapidly dyeing wood veneers by using turmeric powder, and belongs to the technical field of wood dyeing. Background technique [0002] With the development of science and technology and material processing industry, wood resources are used as raw materials, and their application scope is becoming more and more extensive. The material properties constructed by the structure and chemical composition of wood resources are becoming more and more popular, especially the natural environmental protection performance. However, due to the shortage of wood and the monotonous color of wood itself, people's material needs cannot be met more and more. Therefore, wood is dyed to enrich the decorative performance of wood. At present, acid dyes and chemical dyes are the most widely used in wood dyeing. After chemical treatment of wood in the early stage, the wood is dyed in the later stage. The dyeing process is complicated, requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/02
CPCB27K5/02
Inventor 祁忆青李瑶瑶王凤珠申黎明郁舒兰
Owner NANJING FORESTRY UNIV
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