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Bleaching treatment process for modified poplar material for furniture manufacturing

A processing technology and modification technology, applied in wood treatment, wood treatment details, wood processing appliances, etc., can solve the problems of late wood color difference of heartwood, uneven color of surface wood, unable to meet the requirements of furniture production, etc., to meet the requirements , good bleaching effect

Inactive Publication Date: 2016-03-02
SUZHOU DONGBANG FURNITURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the modified wood, especially the modified fast-growing poplar material, has unclear wood grain, serious uneven color on the surface, and defects such as color difference in heartwood, sapwood, early wood and late wood, especially for log processing. If it is not timely, it will cause discoloration, so it often cannot meet the requirements of furniture production in direct use

Method used

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  • Bleaching treatment process for modified poplar material for furniture manufacturing

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Comparison scheme
Effect test

Embodiment 1

[0019] The specific processing method is as follows:

[0020] a) Sodium hydroxide solution extracts and treats wood. First, a sodium hydroxide solution with a concentration of 0.18% is prepared, and then the surface of the modified poplar board is sanded with a semi-automatic sander and No. 80 sandpaper, and then the surface is sanded with sodium hydroxide The modified poplar wood board was treated by solution extraction for 18h. This extraction treatment can increase the permeability of the bleaching agent during bleaching and the stability of the color of the bleached wood.

[0021] b) Compound bleaching agent brushing treatment of wood, the specific treatment process is as follows: first, mix 42% hydrogen peroxide, 8% ammonia water, and 50% water evenly according to the mass percentage, and prepare a compound bleaching agent, in which the concentration of hydrogen peroxide is 30% , the concentration of ammonia water is 25%; then the modified poplar board treated in step a)...

Embodiment 2

[0024] The specific processing method is as follows:

[0025] a) Sodium hydroxide solution extracts and treats wood. First, a sodium hydroxide solution with a concentration of 0.24% is prepared, and then the surface of the modified poplar board is sanded with a semi-automatic sander and No. 80 sandpaper, and then the surface is sanded with sodium hydroxide The modified poplar board was treated with solution extraction for 15 hours. This extraction treatment can increase the permeability of the bleaching agent during bleaching and the stability of the color of the bleached wood.

[0026] b) Treat wood with compound bleaching agent by brushing. The specific treatment process is: first, mix 44% hydrogen peroxide, 9% ammonia water, and 47% water according to the mass percentage to prepare a compound bleaching agent. The concentration of hydrogen peroxide is 30%. , the concentration of ammonia water is 25%; then the modified poplar board treated in step a) is bleached for the firs...

Embodiment 3

[0029] The specific processing method is as follows:

[0030] a) Sodium hydroxide solution extracts and treats wood. First, a sodium hydroxide solution with a concentration of 0.3% is prepared, and then the surface of the modified poplar board is sanded with a semi-automatic sander and No. 80 sandpaper, and then the surface is sanded with sodium hydroxide The modified poplar wood board was treated by solution extraction for 12 hours. This extraction treatment can increase the permeability of the bleaching agent during bleaching and the stability of the color of the bleached wood.

[0031] b) Treat wood with compound bleaching agent by brushing. The specific treatment process is: first, mix 45% hydrogen peroxide, 10% ammonia water, and 45% water according to the mass percentage to prepare a compound bleaching agent. The concentration of hydrogen peroxide is 30%. , the concentration of ammonia water is 25%; then the modified poplar board treated in step a) is bleached for the f...

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Abstract

The invention provides a bleaching treatment process for a modified poplar material for furniture manufacturing. The treatment process includes the following steps that a, timber is extracted through a sodium hydroxide solution; b, the timber is smeared with a composite bleaching agent; and c, aftertreatment of the timber is performed. By the adoption of the bleaching treatment process for the modified poplar material for furniture manufacturing, the bleaching agent is reasonably prepared and the bleaching process parameters are reasonably optimized, so that the good bleaching effect of modified poplar is achieved, and the requirement for the furniture manufacturing material is met.

Description

technical field [0001] The invention relates to a furniture material treatment process, in particular to a bleaching treatment process for modified poplar wood materials used in furniture production, and belongs to the technical field of furniture materials. Background technique [0002] Wood is a renewable natural material, which is widely used in furniture production due to its high strength-to-weight ratio, easy processing, and good insulation properties. However, most of the existing wood used in furniture production has disadvantages such as low density, low mechanical strength, poor dimensional stability and water absorption resistance, and the range of use is greatly limited. Moreover, with the reduction of timber resources and the improvement of people's living standards, people have higher and higher requirements for the quantity and quality of timber utilization, and the contradiction between supply and demand of timber resources has become increasingly prominent. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/02B27K3/12B27K3/32
CPCB27K5/02B27K3/12B27K3/32
Inventor 杨小锋
Owner SUZHOU DONGBANG FURNITURE
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