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Wood surface bleaching technology and its special-purpose apparatus

A veneer and process technology, applied in the field of wood bleaching, can solve the problems of low production efficiency, unknown, large investment, etc., and achieve the effects of improving efficiency and effect, improving efficiency and stabilizing quality

Inactive Publication Date: 2009-09-30
CHENGDU CANYA WOOD IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the wood bleaching equipment sold in the market has large investment, low production efficiency, unstable bleaching effect, and cannot fully meet the requirements of veneer bleaching.
That is to say, there is no special industrial equipment for veneer bleaching on the market

Method used

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  • Wood surface bleaching technology and its special-purpose apparatus
  • Wood surface bleaching technology and its special-purpose apparatus
  • Wood surface bleaching technology and its special-purpose apparatus

Examples

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Embodiment Construction

[0024] Wood veneer bleaching process of the present invention, carry out according to the following steps: a) by 1000ml water dissolving 2-5 gram hydrogen peroxide, 3 gram sodium hydroxide, 1 gram sodium silicate, 0.05 gram magnesium chloride, prepare bleaching solution in No. 1 bleaching pool 5 : When preparing, first dissolve sodium hydroxide, sodium silicate, and magnesium chloride in water to obtain a solution, then add the sodium hydroxide solution to the magnesium chloride solution, then add the sodium silicate solution, and finally add hydrogen peroxide; b) add the veneer Put it into the veneer bleaching frame, put it into the bleaching tank, so that the bleaching solution will completely submerge the veneer; c) use a pump to pass through the circulation pipeline to keep the bleaching solution in the pool in continuous circulation (see Figure 9 , No. 1 bleaching tank 5 is provided with liquid inlet 5a and liquid outlet 5b, adopts pump to do forced circulation by pipelin...

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Abstract

A wood veneer bleaching process, the steps are as follows: take hydrogen peroxide, sodium hydroxide, sodium silicate and magnesium chloride in a certain proportion to prepare bleaching solution in No. The bleaching solution is in continuous circulation; at the same time, steam is passed through to heat the bleaching solution to keep the temperature constant at 60-70°C, and the constant temperature time is 4-6 hours; take the veneer bleaching frame out of No. 1 bleaching pool and put it into No. 2 In the oxalic acid aqueous solution in the bleaching pool, turn on the liquid medicine forced circulation device, so that the liquid medicine in the pool is in a state of continuous circulation, take out the veneer bleaching frame after continuous soaking for 30 minutes; rinse with clean water under pressure; and finally dry it. The invention also discloses a special veneer bleaching frame and a serpentine spacer made of angle steel. The invention has the characteristics of small equipment investment, high production efficiency and good bleaching effect.

Description

technical field [0001] The invention relates to the technology of wood bleaching, in particular to the bleaching process of veneer for decoration and the special utensil for containing the veneer during bleaching. Background technique [0002] With its beautiful and generous natural patterns and unique texture, wooden products make people feel close to nature and return to nature. However, the reality is that the quantity of high-quality wood is small and the price is high, which makes it difficult to meet market demand. People make very thin veneer from high-quality wood with ornamental value, and stick the veneer on the wooden surface made of ordinary wood to make it have a high-quality appearance. The bleaching of veneer is an important link in the industrial processing of veneer. The bleaching of veneer is to decolorize the chromophoric group or auxochromic group and the components related to coloring through oxidation, reduction and degradation of bleaching agent. Pur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K5/02
Inventor 张蕾张华君郝明生
Owner CHENGDU CANYA WOOD IND
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