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Microwave-treated dyed decorative veneer and preparation method thereof

A technology of microwave treatment and treatment equipment, which is applied in the direction of radiation/wave wood treatment, wood treatment, wood treatment details, etc. It can solve the problems of poor uniform distribution of resin, long impregnation time, low production efficiency, etc., and achieve uniform density and stable size Good performance and low cost

Inactive Publication Date: 2016-12-07
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing dyeing veneer preparation methods all use veneer as raw material for dyeing, which has low production efficiency and high cost, and some methods require professional dyeing equipment
At the same time, high-pressure impregnation is used when impregnating wood with resin, and there are problems such as high pressure, long impregnation time, poor resin distribution, high production cost, and low efficiency.

Method used

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  • Microwave-treated dyed decorative veneer and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In this embodiment, the microwave-processed recombined material is prepared by using 2500mm (length) × 250mm (width) × 150mm (thick) sylvestris sylvestris sylvestris string cutting board, and the specific steps are as follows:

[0038] (1) by natural drying (air-drying shed of Chinese Academy of Forestry Sciences) or kiln drying (drying temperature 60-80 ℃), the moisture content of Pinus sylvestris lumber is controlled at 30-40%;

[0039] (2) Use continuous tunnel microwave processing equipment (Nanjing Sanle Microwave Technology Development Co., Ltd., model WX100L, the same below) to treat wood with microwaves. The length of the tunnel resonant cavity is 1m, and the cross-sectional size of the tunnel resonant cavity is 0.3m. ×0.25m, the processing parameters are: microwave frequency 915MHz, microwave source power 10kW, microwave volume power 133kW / m 3 , the processing time is 90s;

[0040] (3) Place the wood and dyeing solution that microwave treatment has finished in...

Embodiment 2

[0046] In this embodiment, the microwave-processed recombined material is prepared by using 2500mm (length) × 250mm (width) × 150mm (thick) sylvestris sylvestris sylvestris string cutting board, and the specific steps are as follows:

[0047] (1) by natural drying (air-drying shed of Chinese Academy of Forestry Sciences) or kiln drying (drying temperature 60-80 ℃), the moisture content of Pinus sylvestris lumber is controlled at 30-40%;

[0048] (2) Use continuous tunnel microwave processing equipment (Nanjing Sanle Microwave Technology Development Co., Ltd., model WX100L, the same below) to treat wood with microwaves. The length of the tunnel resonant cavity is 1m, and the cross-sectional size of the tunnel resonant cavity is 0.3m. ×0.25m, the processing parameters are: microwave frequency 915MHz, microwave source power 100kW, microwave volume power 1333kW / m 3 , the processing time is 15s;

[0049] (3) Place the wood and dyeing solution that microwave treatment has finished ...

Embodiment 3

[0055] In this embodiment, the microwave-treated recombined wood is prepared by using fir boards with a size of 2000 mm (length) × 200 mm (width) × 100 mm (thickness), and the specific steps are as follows:

[0056] (1) by natural drying (air-drying shed of Chinese Academy of Forestry Sciences) or kiln drying (drying temperature 60-80 ℃), the moisture content of Chinese fir wood is controlled at 40-60%;

[0057] (2) Use continuous tunnel microwave processing equipment (Nanjing Sanle Microwave Technology Development Co., Ltd., model WX100L, the same below) to treat wood with microwaves. The length of the tunnel resonant cavity is 1m, and the cross-sectional size of the tunnel resonant cavity is 0.3m. ×0.25m, the processing parameters are: microwave frequency 915MHz, microwave source power 100kW, microwave volume power 1333kW / m 3 , the processing time is 15s;

[0058] (3) Place the wood and dyeing solution that microwave treatment has finished in step (2) into a vacuum treatmen...

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Abstract

The invention discloses microwave-treated dyed decorative veneer and a preparation method thereof. The preparation method comprises the following steps: first performing high-intensity microwave treatment of large-size wood; then dyeing the microwave-treated wood with a dye; drying the dyed wood and then soaking the dried wood in a resin-based adhesive or a bio-based adhesive; next preparing the wood into microwave-treated dyed wood by hot pressing or cold pressing; and finally planning the microwave-treated dyed wood to prepare the microwave-treated dyed decorative veneer. Through the microwave-treated dyed decorative veneer and the preparation method thereof, the difficult problems of poor dye liquor permeability, insufficient dye liquor penetration depth, poor physical and mechanical properties of decorative veneer and poor dyeing effect uniformity in a large-size wood dyeing process are solved. The microwave-treated dyed decorative veneer and the preparation method thereof are applicable to the fields of furniture, floor, decoration and finish.

Description

technical field [0001] The invention relates to the field of wood processing, in particular to a microwave-treated dyed decorative veneer and a preparation method thereof. The obtained microwave-treated dyed decorative veneer can be used in the fields of furniture, floors and decoration. Background technique [0002] Wood permeability is one of the important physical properties of wood, and improving the permeability is beneficial to the efficient processing and utilization of wood. A lot of research has been done on improving the permeability of wood at home and abroad. The traditional methods for improving the permeability of wood include three types: chemical method, biological method and physical method: 1) chemical method uses chemical agents to replace the extracted substances in the pit membrane Or degrade the pit membrane, expand the opening between the plug edges of the pit membrane, expand the cell flow channel, thereby improving the permeability of wood; 2) Biolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/00B27K5/02B27K5/04B27K3/08B27N3/08B27N1/02
CPCB27K5/0055B27K3/08B27K5/02B27K5/04B27N1/0209B27N3/08
Inventor 林兰英傅峰周永东徐恩光
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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