CN101121278A - Wood surface bleaching technology and its special-purpose apparatus - Google Patents
Wood surface bleaching technology and its special-purpose apparatus Download PDFInfo
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- CN101121278A CN101121278A CNA2007100498924A CN200710049892A CN101121278A CN 101121278 A CN101121278 A CN 101121278A CN A2007100498924 A CNA2007100498924 A CN A2007100498924A CN 200710049892 A CN200710049892 A CN 200710049892A CN 101121278 A CN101121278 A CN 101121278A
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Abstract
A bark bleaching process; the steps are as follows that hydrogen peroxide, sodium hydroxide, sodium silicate and magnesium chloride are taken in I bleacher according to a certain proportion to make bleaching liquid: the bark is encased in a bark bleaching frame and the frame is soaked in the bleacher; a pump is adopted to continuously circulate the bleaching liquid in the bleacher; at the same time, steam is input for heating the bleaching liquid and the temperature is kept constant between 60 to 70 Celsius degrees; the constant temperature is kept for 4 to 6 hours; the bark bleaching frame is taken out of the in I bleacher and put into II bleacher filled with oxalic acid solution; a liquid compulsory circulation device is used to make the liquid in the bleacher continuously circulate; the bark bleaching frame is taken out after the frame is soaked for continuous 30 minutes; the bleaching frame is washed with pressed clean water and the drying treatment is implemented at last. The present invention also discloses a special bark bleaching frame and snakelike parting strip for angle steel welding. The present invention boasts of low investment on equipment, high production efficiency and excellent bleaching effect.
Description
Technical field
The present invention relates to the technology of timber bleaching, the special implement of splendid attire wood skin when relating to decorate specifically with Wood surface bleaching technology and bleaching thereof.
Background technology
Woodwork is with its natural figure elegant in appearance and distinctive texture, people produced get close to nature, the sensation of back to nature.But reality is the few valency height of high-quality amount of wood, is difficult to meet the need of market.People will have the high-quality timber of ornamental value and make very thin wooden skin, and wooden skin is posted on the wooden surface that common wood is made, and make it have the appearance of high-quality.Bleaching to wooden skin in the wood skin industrial processes is an important step, and wooden skin bleaching is with the chromophoric group in the timber or auxochrome group and painted relevant constituent, destroys to reach the purpose of decolouring through oxidation, reduction, the degraded of bleaching agent.
Wood skin bleaching makes that wood color shoals, uniform hue, pollution abatement, prevent variable color and change the important procedure of bad wood color, is the important component part of technology of mix colors.Lightness is the first element of decision wood color, and majority are there being the wood color of lightness to be judged to be good wood color, and black dull wood color is bad wood color.Whiteness and lightness are proportionate substantially, and bleaching back whiteness increases, and lightness also improves, and improves the use value of material inferior, thereby alleviates the timber imbalance between supply and demand, and wooden skin bleaching is significant.
The timber bleaching equipment investment of selling in the market is big, production efficiency is low, bleaching effect is unstable, can not satisfy the requirement of wooden skin bleaching fully.That is to say, do not see the appearance of the special-purpose industrial equipment that is useful on wooden skin bleaching on the market.
Summary of the invention
The purpose of this invention is to provide a kind of industrial mass processing, production efficiency height, Wood surface bleaching technology that bleaching effect is good of being applicable to.
The object of the present invention is achieved like this: a kind of Wood surface bleaching technology, carry out according to the following steps: a) by water-soluble 2-5 gram hydrogen peroxide, 3 gram NaOH, 1 gram sodium metasilicate, the 0.05 gram magnesium chloride separated of 1000ml, in the I Bellmer, prepare bleaching liquid: during preparation, earlier NaOH, sodium metasilicate, magnesium chloride are dissolved in the water respectively and make solution, then sodium hydroxide solution is added in the magnesium chloride solution, again sodium silicate solution is added, add hydrogen peroxide at last; B) wooden leather jacket is gone into wooden skin bleaching frame, put into Bellmer, bleaching liquid is all flooded wooden skin; C) adopt pump bleaching liquid in the pond to be among the continuous circulation by pipeloop; D) meanwhile, feed steam by the steam steam inlet pipe in the pond, the steam fumarole of the coiled pipe of steam at the bottom of be arranged in the pond sprays, and bleaching liquid is heated, and under the control of temperature control equipment, make the bleaching liquid temperature constant at 60-70 ℃; E) the constant temperature bleaching time is 4-6 hour; F) by the water-soluble 200 gram oxalic acid preparating liquid in the II Bellmer of separating of 1000ml; G) wooden skin bleaching frame is taken out from the I Bellmer, put among the soup of II Bellmer, open the soup forced circulation device, the pond inner liquid medicine is among the continuous circulatory condition, continuous dipping takes out wooden skin bleaching frame after 30 minutes; H) with clear water wooden skin in the frame is carried out pressure flush; I) at last wooden skin in the frame being carried out drying handles.
Above-mentioned chemicals is all with 100% purity meter.
The wooden skin bleaching frame that another object of the present invention provides and a kind ofly simple in structurely is suitable for, wooden skin good positioning effect, working ability are big, be used for above-mentioned Wood surface bleaching technology.
Another object of the present invention is achieved in that a kind of wooden skin bleaching frame of Wood surface bleaching technology, comprise cuboid framework by the angle steel welding, the length of framework and highly respectively greater than the length and the width of wooden skin to be installed, framework top, go to the bottom and the back is welded with 2-4 root band steel respectively equally spacedly; The front of framework is hinged with 2-4 root card article equally spacedly, and the framework front is fixed with the pile crown for the card article cutting ferrule.Also have and be used for along growing in vertical placement framework, being used as the snakelike parting bead that wooden skin is separated: many spiral wires are welded in parallel between upper and lower two parallel steel wires.
In the technique scheme, the inventor filters out the prescription and the preparing process of bleaching liquid by studying for a long period of time and testing.If single use hydrogen peroxide (formal name used at school hydrogen peroxide, as oxidant, bleaching agent), bleaching effect is that oxidation is not remarkable, if under alkali condition, there are sodium metasilicate and magnesia to exist under the situation again, and under uniform temperature and the soup turbulent-flow conditions, its oxidation strengthens, and dark white effect is remarkable.After bleaching is handled, and employing oxalic acid (the formal name used at school ethanedioic acid, water-soluble, as reducing agent) as reducing agent, the wooden skin that above-mentioned bleaching liquid was handled plays acid-base neutralization and reduction.Finally, the chromophoric group in the wooden skin destroys and reaches the purpose of decolouring through the oxidation of bleaching agent, reduction, degraded.
Technological process of the present invention can be divided into three big systems: 1, heating constant-temperature system 2, the circulatory system 3, feed system from the equipment angle.The function and the characteristics of each system are as follows:
1, heating constant-temperature system: bleaching agent at room temperature bleaching power is very low, improve the efficient of wooden skin bleaching, need heat soup, temperature is not simultaneously, the bleaching power difference is therefore in to the bleaching agent heating, for the stability that guarantees bleaching effect just needs a constant temperature.Bleaching liquid prescription of the present invention is in the time of 60～70 ℃, and bleaching effect is best.The design of native system cooperates the use of temperature sensor and temperature controller by industrial enterprise's Steam Heating commonly used, reaches the effect of heating and constant temperature.
2, the circulatory system: bleaching agent under static state bleaching power is very low, and bleaching agent is constantly moved, and increases the molecular motion of oxidation in the bleaching agent, reduction dosage, can improve the efficient of bleaching.Simultaneously, drift agent under static state,, thereby directly influence the effect of bleaching because the local action of wooden skin and oxidation, reducing agent can cause wooden skin the uneven phenomenon of bleaching to occur.Allowing bleaching agent obtain abundant exercise is the important means of raising the efficiency with effect.
3, feed system: wooden skin owing to be subjected to the active force of buoyancy and water circulation, can float in water everywhere, and simple immersion can make between the wooden skin owing to gluing the folded bleaching effect that has a strong impact on mutually.Therefore wooden skin fixing and mutually between to have necessary gap be necessary.This requirement has been satisfied in the design of feeding rack fully, and the charging frame of making according to the sturdy border of wood size can be fixed on wooden skin in the frame, can not float, and the design of snakelike parting bead makes and exists enough spaces to allow bleaching agent and wooden skin fully react between the wooden skin.Promptly improve efficient, stablized the quality of bleaching again.
The snakelike parting bead of wood skin bleaching frame is fixed wooden skin and is kept having between the wooden skin enough gaps to allow soup flow, and each part of soup and wooden skin is fully reacted, and makes bleaching effect evenly, fully.The design of snakelike parting bead has guaranteed gap enough between the wooden skin, and makes to be between parting bead and the wooden skin and contact, and reduces the influence to wooden skin.
Because bleaching agent is strong oxidation, reducing agent, therefore, that the equipment making material should be taked is anti-oxidant, the material of reduction.
Industrial bleaching to wooden skin is in great demand, and more needs to form the ability of batch process.Compare existing bleaching equipment (the existing equipment investment is big, efficient is low, bleaching effect is unstable, is not suitable for wooden skin industrial mass manufacture), technological equipment investment of the present invention is few, efficient is high, can reach stable bleaching effect.
Description of drawings
Fig. 1 is the stereogram of the present invention's wood skin bleaching frame;
Fig. 2 is the stereogram that card article is opened situation in the wooden skin bleaching frame shown in Figure 1;
Fig. 3 Fig. 4 Fig. 5 is respectively front view, left view and the vertical view of snakelike parting bead;
Fig. 6 Fig. 7 Fig. 8 is respectively pack into front view, left view and a vertical view behind wooden skin and the snakelike parting bead of wooden skin bleaching frame shown in Figure 1;
Fig. 9 is the configuration schematic diagram of steam-heating pipe in the I Bellmer of the present invention;
Figure 10 is the configuration schematic diagram of the circulatory system in the II Bellmer of the present invention.
The specific embodiment
Wood surface bleaching technology of the present invention, carry out according to the following steps: a) by water-soluble 2-5 gram hydrogen peroxide, 3 gram NaOH, 1 gram sodium metasilicate, the 0.05 gram magnesium chloride separated of 1000ml, in I Bellmer 5, prepare bleaching liquid: during preparation, earlier NaOH, sodium metasilicate, magnesium chloride are dissolved in the water respectively and make solution, then sodium hydroxide solution is added in the magnesium chloride solution, again sodium silicate solution is added, add hydrogen peroxide at last; B) wooden leather jacket is gone into wooden skin bleaching frame, put into Bellmer, bleaching liquid is all flooded wooden skin; C) adopt pump to make bleaching liquid in the pond be in (referring to Fig. 9, I Bellmer 5 is provided with inlet 5a and liquid outlet 5b, adopts pump to make forced circulation by pipeline) among the continuous circulation by pipeloop; D) meanwhile, feed steam by steam steam inlet pipe 3 in the pond, the steam fumarole of the coiled pipe 4 of steam at the bottom of be arranged in the pond sprays, and bleaching liquid is heated (referring to Fig. 9), and under the control of temperature control equipment, make the bleaching liquid temperature constant at 60-70 ℃; E) the constant temperature bleaching time is 4-6 hour; F) by the water-soluble 200 gram oxalic acid preparating liquid in the II Bellmer of separating of 1000ml; G) wooden skin bleaching frame is taken out from the I Bellmer, put among the soup of II Bellmer 6, open the soup forced circulation device, the pond inner liquid medicine is among the continuous circulatory condition, continuous dipping takes out wooden skin bleaching frame after 30 minutes; H) with clear water wooden skin in the frame is carried out pressure flush; I) at last wooden skin in the frame is carried out drying and handle (referring to Fig. 1).
I pond medicament preparation: before bleaching wooden skin, earlier NaOH, sodium metasilicate, magnesium chloride are dissolved in the water respectively, then sodium hydroxide solution are added in the magnesium chloride solution, add sodium silicate solution again, stir, add hydrogen peroxide (30% content) at last, stand-by after mixing.Unsuitable stored for a long time after the bleaching liquid preparation.
II pond medicament preparation: dissolving 200 gram oxalic acid in the 1000ml water.
More than the adding weight of these chemicals all with 100% purity meter.And its addition all can be selected for use in 150% scope, can be the 1-1.5 gram as the span of sodium metasilicate.
Points for attention
1, solution when preparation, should take care, hand, skin directly do not contact with soup, always wear your gloves, mouth mask.
2, after bleaching agent solution used once, the most decomposition of hydrogen peroxide was intact, but in order to save the consumption of water, can press formula rate again and add hydrogen peroxide, NaOH and sodium metasilicate, and the amount of NaOH and oxalic acid can be replenished adding according to circumstances.If solution colour deepens, then need to change by the gross solution.
Referring to Figure 10, the soup forced circulation device is: the outlet of water pump 8 connects water inlet pipe 10, water inlet pipe 10 stretches into the bottom in the II Bellmer, valve 9 is installed on the water inlet pipe 10, the import of water pump 8 connects outlet pipe 14, outlet pipe 14 stretch in the II Bellmer and with its on have an eyelet three horizontal tubes 11,12,13 be connected, be provided with valve 7 between outlet pipe 14 and the water pump import.
Fig. 1 Fig. 2 illustrates, wooden skin bleaching frame as above-mentioned Wood surface bleaching technology, comprise cuboid framework 1 by angle steel welding, the length of framework and highly respectively greater than the length and the width of wooden skin to be installed, framework top, go to the bottom and the back is welded with to spacing 2-4 root band steel 1a respectively; The front of framework is hinged with 2-4 root card article 1b equally spacedly, and the framework front is fixed with the pile crown 1c for the card article cutting ferrule.Also have and be used for edge length to vertically being placed in the framework, being used as the snakelike parting bead 2 that wooden skin is separated: many spiral wire 2c are welded on (referring to Fig. 3 Fig. 4 Fig. 5) between upper and lower two parallel steel wire 2a, the 2b in parallel.Framework 1 is provided with two hanger 1d, 1e.
Shown in Fig. 6 Fig. 7 Fig. 8 be, the wood leather jacket is gone into the situation of being separated and being fixed by snakelike parting bead in the frame, between the wooden skin, shown in Fig. 8 (putting into the vertical view in pond), be that wooden skin 2d is the setting placement, cut apart by snakelike parting bead each other and be stuck between the snakelike parting bead, wooden skin fixed-site in Bellmer, gapped each other, can fully contact, bleaching action takes place with soup.The appearance and size and the Bellmer of bleaching frame complement one another, and are rectangle as Bellmer, can consider to place side by side two bleaching frame in the pond, change the pond body degree of depth, also can every layer of two bleaching frame, and two superimposed is placed altogether.
Claims (4)
1. Wood surface bleaching technology is characterized in that: carry out according to the following steps:
A) by water-soluble 2-5 gram hydrogen peroxide, 3 gram NaOH, 1 gram sodium metasilicate, the 0.05 gram magnesium chloride separated of 1000ml, in I Bellmer (5), prepare bleaching liquid: during preparation, earlier NaOH, sodium metasilicate, magnesium chloride are dissolved in the water respectively and make solution, then sodium hydroxide solution is added in the magnesium chloride solution, again sodium silicate solution is added, add hydrogen peroxide at last;
B) wooden leather jacket is gone into wooden skin bleaching frame, put into Bellmer, bleaching liquid is all flooded wooden skin;
C) adopt pump bleaching liquid in the pond to be among the continuous circulation by pipeloop;
D) meanwhile, feed steam by steam steam inlet pipe (3) in the pond, the steam fumarole of the coiled pipe (4) of steam at the bottom of be arranged in the pond sprays, and bleaching liquid is heated, and under the control of temperature control equipment, make the bleaching liquid temperature constant at 60-70 ℃;
E) the constant temperature bleaching time is 4-6 hour;
F) by the water-soluble 200 gram oxalic acid preparating liquid in the II Bellmer of separating of 1000ml;
G) wooden skin bleaching frame is taken out from the I Bellmer, put among the soup of II Bellmer (6), open the soup forced circulation device, the pond inner liquid medicine is among the continuous circulatory condition, continue to soak and take out wooden skin bleaching frame after 30 minutes;
H) with clear water wooden skin in the frame is carried out pressure flush;
I) at last wooden skin in the frame being carried out drying handles.
2. according to the described Wood surface bleaching technology of claim 1, it is characterized in that: described soup forced circulation device is: the outlet of water pump (8) connects water inlet pipe (10), water inlet pipe (10) stretches into the bottom in the II Bellmer, valve (9) is installed on the water inlet pipe (10), the import of water pump (8) connects outlet pipe (14), outlet pipe (14) stretch in the II Bellmer and with its on have an eyelet three horizontal tubes (11,12,13) be connected, be provided with valve (7) between outlet pipe (14) and the water pump import.
One kind as power 1 said Wood surface bleaching technology wooden skin bleaching frame, it is characterized in that: comprise cuboid framework (1) by the angle steel welding, the length of framework and highly respectively greater than the length and the width of wooden skin to be installed, framework top, go to the bottom and the back is welded with 2-4 root band steel (1a) respectively equally spacedly; The front of framework is hinged with 2-4 root card article (1b) equally spacedly, and the framework front is fixed with the pile crown (1c) for the card article cutting ferrule; Also have and be used for edge length to vertically being placed in the framework, being used as the snakelike parting bead (2) that wooden skin is separated: many spiral wires (2c) are welded in parallel between upper and lower two parallel steel wires (2a, 2b).
4. drift the wooden skin bleaching frame of technology according to the described wooden skin of claim 3, it is characterized in that: described framework (1) is provided with two hangers (1d, 1e).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100498924A CN100544913C (en) | 2007-08-31 | 2007-08-31 | Wood surface bleaching technology and special implement thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100498924A CN100544913C (en) | 2007-08-31 | 2007-08-31 | Wood surface bleaching technology and special implement thereof |
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| Publication Number | Publication Date |
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| CN101121278A true CN101121278A (en) | 2008-02-13 |
| CN100544913C CN100544913C (en) | 2009-09-30 |
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| CNB2007100498924A Expired - Fee Related CN100544913C (en) | 2007-08-31 | 2007-08-31 | Wood surface bleaching technology and special implement thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101691042B (en) * | 2009-10-12 | 2013-01-16 | 浙江升华云峰新材股份有限公司 | Decoloring agent for decoloring bamboo or wood and method for decoloring bamboo or wood |
| CN103465331A (en) * | 2013-10-09 | 2013-12-25 | 廉江一品木业有限公司 | Old wood archaizing process |
| CN104057520A (en) * | 2014-05-28 | 2014-09-24 | 安徽日昇木竹制品有限公司 | Wood bleaching agent |
| CN105171871A (en) * | 2015-08-17 | 2015-12-23 | 夹江县永兴木业有限公司 | Musical instrument board treating fluid and treating method thereof |
| CN105799026A (en) * | 2016-06-01 | 2016-07-27 | 嘉善久顺木业有限公司 | Wood veneer/batten whitening technology |
| CN105946078A (en) * | 2016-06-01 | 2016-09-21 | 嘉善久顺木业有限公司 | Dyeing technology for wood veneer/batten |
| CN106625952A (en) * | 2016-11-22 | 2017-05-10 | 唐林元 | Wood bleaching method |
| CN107186843A (en) * | 2017-07-04 | 2017-09-22 | 德华兔宝宝装饰新材股份有限公司 | A kind of Efficient Wood bleaching system automatically adjusted based on pH value |
| CN108162112A (en) * | 2017-12-08 | 2018-06-15 | 德华兔宝宝装饰新材股份有限公司 | A kind of ternary built dyestuff and the method that high color fastness veneer layer is prepared using the dyestuff |
| CN109016018A (en) * | 2018-08-30 | 2018-12-18 | 嘉善久顺木业有限公司 | A kind of shallow technique of drift of black walnut wood skin |
| CN110434962A (en) * | 2019-08-16 | 2019-11-12 | 上海卓炫服饰有限公司 | A kind of decoration wood skin dip dyeing drying equipment |
| CN110450251A (en) * | 2019-07-12 | 2019-11-15 | 浙江水墨江南新材料科技有限公司 | A kind of wood skin dyeing infuser device and wood skin dyeing treatment |
| CN111890503A (en) * | 2020-08-06 | 2020-11-06 | 福建鑫隆达竹木科技有限公司 | Bamboo bleaching method |
| CN112297168A (en) * | 2020-11-16 | 2021-02-02 | 五邑大学 | Bleaching method for sparrow-eye maple wood bark |
| CN113070960A (en) * | 2021-04-01 | 2021-07-06 | 浙江久顺新材料科技有限公司 | Low-damage veneer bleaching formula and bleaching process |
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2007
- 2007-08-31 CN CNB2007100498924A patent/CN100544913C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101691042B (en) * | 2009-10-12 | 2013-01-16 | 浙江升华云峰新材股份有限公司 | Decoloring agent for decoloring bamboo or wood and method for decoloring bamboo or wood |
| CN103465331A (en) * | 2013-10-09 | 2013-12-25 | 廉江一品木业有限公司 | Old wood archaizing process |
| CN104057520A (en) * | 2014-05-28 | 2014-09-24 | 安徽日昇木竹制品有限公司 | Wood bleaching agent |
| CN105171871A (en) * | 2015-08-17 | 2015-12-23 | 夹江县永兴木业有限公司 | Musical instrument board treating fluid and treating method thereof |
| CN105799026A (en) * | 2016-06-01 | 2016-07-27 | 嘉善久顺木业有限公司 | Wood veneer/batten whitening technology |
| CN105946078A (en) * | 2016-06-01 | 2016-09-21 | 嘉善久顺木业有限公司 | Dyeing technology for wood veneer/batten |
| CN105799026B (en) * | 2016-06-01 | 2017-07-28 | 嘉善久顺木业有限公司 | The whitening process of wood skin/side |
| CN106625952A (en) * | 2016-11-22 | 2017-05-10 | 唐林元 | Wood bleaching method |
| CN107186843A (en) * | 2017-07-04 | 2017-09-22 | 德华兔宝宝装饰新材股份有限公司 | A kind of Efficient Wood bleaching system automatically adjusted based on pH value |
| CN108162112A (en) * | 2017-12-08 | 2018-06-15 | 德华兔宝宝装饰新材股份有限公司 | A kind of ternary built dyestuff and the method that high color fastness veneer layer is prepared using the dyestuff |
| CN109016018A (en) * | 2018-08-30 | 2018-12-18 | 嘉善久顺木业有限公司 | A kind of shallow technique of drift of black walnut wood skin |
| CN110450251A (en) * | 2019-07-12 | 2019-11-15 | 浙江水墨江南新材料科技有限公司 | A kind of wood skin dyeing infuser device and wood skin dyeing treatment |
| CN110434962A (en) * | 2019-08-16 | 2019-11-12 | 上海卓炫服饰有限公司 | A kind of decoration wood skin dip dyeing drying equipment |
| CN111890503A (en) * | 2020-08-06 | 2020-11-06 | 福建鑫隆达竹木科技有限公司 | Bamboo bleaching method |
| CN112297168A (en) * | 2020-11-16 | 2021-02-02 | 五邑大学 | Bleaching method for sparrow-eye maple wood bark |
| CN113070960A (en) * | 2021-04-01 | 2021-07-06 | 浙江久顺新材料科技有限公司 | Low-damage veneer bleaching formula and bleaching process |
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| CN100544913C (en) | 2009-09-30 |
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