CN103144158A - Decoloring treatment method for Paulownia woods - Google Patents
Decoloring treatment method for Paulownia woods Download PDFInfo
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- CN103144158A CN103144158A CN201310112589XA CN201310112589A CN103144158A CN 103144158 A CN103144158 A CN 103144158A CN 201310112589X A CN201310112589X A CN 201310112589XA CN 201310112589 A CN201310112589 A CN 201310112589A CN 103144158 A CN103144158 A CN 103144158A
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Abstract
The invention discloses a decoloring treatment method for Paulownia woods, and the method can be used for effectively solving the decoloring treatment problem of decolored Paulownia woods. The method comprises the following steps: dividing a raw Paulownia wood into rough-edged boards with the thickness of 12 mm along the height direction of the raw Paulownia wood, removing the edges of the rough-edged boards, and sawing the rough-edged boards into integral-edged boards, stacking the integral-edged boards into a treating pond, separating each layer of integral-edged boards by using long battens, and stacking and fixing the integral-edged boards into the treating pond; and adding water, sodium hydroxide and sodium dodecyl benzene sulfonate into the treating pond, submerging the integral-edged boards, soaking the integral-edged boards 1-5 days at 5-40 DEG C, wherein the sodium hydroxide accounts for 0.1-0.3wt% of the water and the sodium dodecyl benzene sulfonate accounts for 0.005-0.05wt% of the water; adding hydrogen peroxide and sodium bicarbonate into the treating pond, uniformly stirring the obtained object and soaking the integral-edged boards 2-3 days at 5-40 DEG C, wherein the hydrogen peroxide accounts for 2-5wt% of the water and the sodium bicarbonate accounts for 0.01-0.05wt% of the water; adding sodium hydrogen sulfite and borax into the treating pond, uniformly stirring the obtained object, and soaking the integral-edged boards 1-2 days at 5-40 DEG C, wherein the sodium hydrogen sulfite accounts for 0.05-0.1wt% of the water and the borax accounts for 0.005-0.01wt% of the water; and finally, taking out the integral-edged boards subjected to soaking and decoloring, washing the integral-edged boards by using water, and drying the integral-edged boards. The method is simple, rich in raw materials, easy to operate, good in processing effect and energy-saving and can effectively prevent paulownia woods from discoloring, thereby improving the quality.
Description
Technical field
The present invention relates to treating of wood, particularly a kind of paulownia wood decoloration treatment method, be effective to the decolouring processing that stained wood occurs paulownia in the middle of felling, transportation, storage, drying and mechanical processing process, improves the paulownia wood quality.
Background technology
Paulownia are one of important fast-growing industrial cut stock seeds of China, and its material is good, and beautiful texture is the good material of making wood-based plate, furniture, building decoration product etc., plant quantity widely distributed because of it is occupied greatly very consequence in China's production of forestry.In recent years, the paulownia wood of outlet and Paulownia wood board major part concentrate on border land, Shandong, Henan, and a year foreign exchange earning surpasses 5,000 ten thousand dollars, for important function has been played in local wealth accumulation in rural areas, economic development.According to statistics, nearly 4,000 ten thousand mu of the existing paulownia cultivated area of China, approximately 700,000,000 strains, timber reserves reaches 6000 ten thousand steres, year cutting 400 ten thousand steres.Henan Province's paulownia class forest stock 2400 ten thousand steres
,Timber annual production 200 ten thousand steres.Paulownia export and wood-based plate mainly for the production of jigsaw outlet, wall slab in China at present.
The look change very easily occurs in the middle of felling, transportation, storage, drying and mechanical processing process because of paulownia affect its processing and utilization, cause product degradation, degradation when serious, sometimes even cause outlet to return goods, the problem of paulownia variable color is perplexing the paulownia processing industry always, be the insoluble technical barrier of paulownia processing enterprise, it is having a strong impact on quality and the value of Paulownia lumber.The paulownia material is serious due to variable color, decolouring is difficult, its industrial use is very restricted, resolve the problem of paulownia decolouring and variable color, not only can enlarge the industrial use of paulownia material, increase its added value of producing jigsaw, promote outlet wall slab quality and value, and can excite the enthusiasm of peasant planting paulownia, have substantial economics and social benefit.
At present to the processing method of variable color Paulownia lumber decolouring and have problems as follows: the oxidation bleaching method that (1) is single: look just can appear returning in the sheet material after processing in 3～4 months, effect is of short duration, sheet material low in glossiness after processing, and it is inadequate to process the degree of depth, only 1mm; (2) adopt bioanalysis to processings of decolouring of paulownia material: be also the laboratory research stage at present, and cost to be larger; (3) process with bubble: be the method that usually adopts in present industrial production, but not enough is that the processing time is long, large (the bubble processing time: be generally 20 days winter of wastewater discharge, about 10 days summers, need change water 6-8 time), labour cost is high, and treatment effect is not good yet, the anti-variable color of paulownia there is certain effect, and not remarkable to the paulownia decolorization.Therefore, the new decoloration treatment method of development is imperative.
Summary of the invention
For above-mentioned situation, for overcoming the defective of prior art, the present invention's purpose just is to provide a kind of paulownia wood decoloration treatment method, can effectively solve the decolouring that stained wood occurs paulownia and process in the middle of felling, transportation, storage, drying and mechanical processing process, to satisfy the problem that improves the paulownia wood quality in timber processing.
The technical scheme that the present invention solves is to be realized by following steps:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.1% ~ 0.3%, the neopelex 0.005% ~ 0.05% by water and water weight, hydrogen peroxide 2% ~ 5%, sodium acid carbonate 0.01% ~ 0.05%, sodium hydrogensulfite 0.05% ~ 0.1% and borax 0.005% ~ 0.01% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is, NaOH 0.1% ~ 0.3%, the neopelex 0.005% ~ 0.05% of first Jiang Shui and water weight are added to the water, make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate, soaked 1-5 days at 5-40 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 2% ~ 5%, the sodium acid carbonate 0.01% ~ 0.05% of entry weight, stir, become soak for the second time, soaked 2-3 days at 5-40 ℃, the treating selvedge plate is decoloured, afterwards, then add sodium hydrogensulfite 0.05% ~ 0.1%, the borax 0.005% ~ 0.01% of entry weight in treatment pond, stir, become soak for the third time, soaked 1-2 days at 5-40 ℃, further the treating selvedge plate is decoloured, and prevention sheet material variable color, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
In above-mentioned immersion decolouring is processed, wherein:
1, the neopelex with 0.1% ~ 0.3% NaOH and 0.005% ~ 0.05% soaks sheet material, in order to improve the paulownia wood permeability and to reduce its inclusion.Neopelex can increase the wood surface activity as surfactant, helps the infiltration of NaOH, makes its inclusion dissolving fully, opens the timber pit, helps other to process entering of solvent;
2, add 2% ~ 5% hydrogen peroxide and 0.01% ~ 0.05% sodium acid carbonate to soak sheet material, to the sheet material processing of decolouring, make soak be in alkalescent, to control the decomposition rate of hydrogen peroxide, make decolorizer fully contact with the plate face, under the effect of surfactant, make its decolouring thoroughly;
3, add 0.05% ~ 0.1% sodium hydrogensulfite and 0.005% ~ 0.01% borax to soak sheet material, with the sheet material processing of further decolouring, and play the effect of prevention sheet material variable color, sodium hydrogensulfite has discoloration, also can be anti-oxidant, prevent that timber is aging, sodium hydrogensulfite and borax are together, can play to timber the effects such as anti-variable color, anticorrosion, sterilization, and borax there are sterilization and softening effect to water.
The inventive method is simple, and abundant raw materials is easy to operate, and treatment effect is good, and is energy-conservation, can effectively prevent the paulownia wood variable color, improves quality, enlarges the application of paulownia wood, and huge economic and social benefit is arranged.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is elaborated.
Embodiment 1
The present invention is realized by following steps in concrete enforcement:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate;
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.1%, the neopelex 0.005%% by water and water weight, hydrogen peroxide 2%, and sodium acid carbonate 0.01%, sodium hydrogensulfite 0.05% and borax 0.005% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.1% of first Jiang Shui and water weight, neopelex 0.005% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 5 days at 5-10 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 2%, the sodium acid carbonate 0.01% of entry weight, and stir, become soak for the second time, soaked 3 days at 5-10 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.05%, the borax 0.005% of entry weight in treatment pond, stir, become soak for the third time, soaked 2 days at 5-10 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
Embodiment 2
The present invention also can be realized by following steps in concrete enforcement:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.2%, the neopelex 0.03% by water and water weight, hydrogen peroxide 3%, and sodium acid carbonate 0.03%, sodium hydrogensulfite 0.08% and borax 0.008% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.2% of first Jiang Shui and water weight, neopelex 0.03% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 3 days at 20-28 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 3%, the sodium acid carbonate 0.03% of entry weight, and stir, become soak for the second time, soaked 2 days at 20-28 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.08%, the borax 0.008% of entry weight in treatment pond, stir, become soak for the third time, soaked 1.5 days at 20-28 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
Embodiment 3
The present invention also can be realized by following steps in concrete enforcement:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.3%, the neopelex 0.05% by water and water weight, hydrogen peroxide 5%, and sodium acid carbonate 0.05%, sodium hydrogensulfite 0.1% and borax 0.01% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.3% of first Jiang Shui and water weight, neopelex 0.05% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 4 days at 10-18 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 5%, the sodium acid carbonate 0.05% of entry weight, and stir, become soak for the second time, soaked 3 days at 10-18 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.1%, the borax 0.01% of entry weight in treatment pond, stir, become soak for the third time, soaked 2 days at 10-18 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
Embodiment 4
The present invention also can be realized by following steps in concrete enforcement:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.15%, the neopelex 0.008% by water and water weight, hydrogen peroxide 4%, and sodium acid carbonate 0.02%, sodium hydrogensulfite 0.07% and borax 0.007% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.15% of first Jiang Shui and water weight, neopelex 0.008% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 1 day at 35-40 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 4%, the sodium acid carbonate 0.02% of entry weight, and stir, become soak for the second time, soaked 2 days at 35-40 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.07%, the borax 0.007% of entry weight in treatment pond, stir, become soak for the third time, soaked 1 day at 35-40 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
Embodiment 5
The present invention also can be realized by following steps in concrete enforcement:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.25%, the neopelex 0.04% by water and water weight, hydrogen peroxide 4%, and sodium acid carbonate 0.04%, sodium hydrogensulfite 0.09% and borax 0.009% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.25% of first Jiang Shui and water weight, neopelex 0.04% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 4.5 days at 30-35 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 4%, the sodium acid carbonate 0.04% of entry weight, and stir, become soak for the second time, soaked 2.5 days at 30-35 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.09%, the borax 0.009% of entry weight in treatment pond, stir, become soak for the third time, soaked 1.5 days at 30-35 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
Described paulownia log preferably selects mobile jib straight, and the age of tree is more than 10 years, the high at least 2m of mobile jib, without die for the sake of honour, without rotten, without the paulownia log of bark pocket.
Timber after the inventive method decolouring is processed has been obtained satisfied technique effect through test and detection, from leaching its inclusion, improving the paulownia permeability, and interpolation surfactant, thereby infiltration dynamics and the control decolorizer resolving time of improving decolorizer increase its decolouring degree of depth and decolorizing effect, and use with anti-blushing agent is collaborative, make the Paulownia lumber after decolouring, nondiscolouring guarantees later stage product appearance quality.Paulownia lumber after processing with the inventive method, the decolouring degree of depth reaches 5mm, its sheet material color and luster is measured with PC-T II G colour photometer, and whiteness (TW) is 33.08, brightness (L) is 75.29, degree of reddening (a) 6.19, change yellow degree (b) 19.22, total color difference (DE) 28.00.After decolouring was processed, every cube can increase by 1500 yuan.500,000 ~ 1,000,000 cubes of the annual outlets of paulownia finished product material can bring high economic benefit to enterprise.And the present invention has shortened the sheet material processing time, reduces quantity of wastewater effluent, has reduced manually, and cost is low, instant effect.Though what the present invention adopted is chemical method, its waste liquid environmental pollution is little, and from environmental angle, the processing that disposes waste liquid is worked out a cover processing method and make the discharging of its waste liquid reach environmental requirement, reduces disposing waste liquid to the pollution of environment.
Compared with prior art, have following outstanding characteristics:
1, paulownia wood improves through permeability and the decolouring processing, makes the paulownia wood decolouring degree of depth deepen to reach 5mm, has kept well the natural colored of paulownia wood simultaneously, makes it look pure white, more is rich in silky luster, and the grain of wood is clear attractive in appearance.
2, paulownia wood improves through permeability and the decolouring processing, and the paulownia hair plates wood color retention time is extended, and look can no longer occur for 1 year become.
3, paulownia wood improves through permeability and the decolouring processing, and the Paulownia lumber colour index is improved, i.e. brightness is large, whiteness is high, aberration is little, color is even.Paulownia wood improves through permeability and decolouring is processed, and makes the saturating property of timber obtain effectively improving, and makes coating be easy to immerse timber inside, brings great convenience for the covering with paint of product, can widen the enterprise product kind, brings larger economic benefit to enterprise.
4, reduced and changed the waterside number, shortened to 1 time by 6 ~ 8 times, saved water resource.Shortened the processing time, shortened to 5 ~ 8 days by average 15 days, reduced artificial.Disposal cost reduces, and every cube is about 43 yuan of left and right, need heat during common water treatment, and processing cost is 60 yuan of left and right.Every cube of sheet material will increase for enterprise the income of nearly 1500 yuan, can bring good economic benefit for enterprise, be the innovation that the paulownia wood decolouring is processed, and have actual application and promotional value.
Claims (6)
1. a paulownia wood decoloration treatment method, is characterized in that, realized by following steps:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.1% ~ 0.3%, the neopelex 0.005% ~ 0.05% by water and water weight, hydrogen peroxide 2% ~ 5%, sodium acid carbonate 0.01% ~ 0.05%, sodium hydrogensulfite 0.05% ~ 0.1% and borax 0.005% ~ 0.01% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is, NaOH 0.1% ~ 0.3%, the neopelex 0.005% ~ 0.05% of first Jiang Shui and water weight are added to the water, make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate, soaked 1-5 days at 5-40 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 2% ~ 5%, the sodium acid carbonate 0.01% ~ 0.05% of entry weight, stir, become soak for the second time, soaked 2-3 days at 5-40 ℃, the treating selvedge plate is decoloured, afterwards, then add sodium hydrogensulfite 0.05% ~ 0.1%, the borax 0.005% ~ 0.01% of entry weight in treatment pond, stir, become soak for the third time, soaked 1-2 days at 5-40 ℃, further the treating selvedge plate is decoloured, and prevention sheet material variable color, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
2. paulownia wood decoloration treatment method according to claim 1, is characterized in that, realized by following steps:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate;
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.1%, the neopelex 0.005%% by water and water weight, hydrogen peroxide 2%, and sodium acid carbonate 0.01%, sodium hydrogensulfite 0.05% and borax 0.005% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.1% of first Jiang Shui and water weight, neopelex 0.005% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 5 days at 5-10 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 2%, the sodium acid carbonate 0.01% of entry weight, and stir, become soak for the second time, soaked 3 days at 5-10 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.05%, the borax 0.005% of entry weight in treatment pond, stir, become soak for the third time, soaked 2 days at 5-10 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
3. paulownia wood decoloration treatment method according to claim 1, is characterized in that, realized by following steps:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.2%, the neopelex 0.03% by water and water weight, hydrogen peroxide 3%, and sodium acid carbonate 0.03%, sodium hydrogensulfite 0.08% and borax 0.008% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.2% of first Jiang Shui and water weight, neopelex 0.03% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 3 days at 20-28 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 3%, the sodium acid carbonate 0.03% of entry weight, and stir, become soak for the second time, soaked 2 days at 20-28 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.08%, the borax 0.008% of entry weight in treatment pond, stir, become soak for the third time, soaked 1.5 days at 20-28 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
4. paulownia wood decoloration treatment method according to claim 1, is characterized in that, realized by following steps:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.3%, the neopelex 0.05% by water and water weight, hydrogen peroxide 5%, and sodium acid carbonate 0.05%, sodium hydrogensulfite 0.1% and borax 0.01% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.3% of first Jiang Shui and water weight, neopelex 0.05% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 4 days at 10-18 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 5%, the sodium acid carbonate 0.05% of entry weight, and stir, become soak for the second time, soaked 3 days at 10-18 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.1%, the borax 0.01% of entry weight in treatment pond, stir, become soak for the third time, soaked 2 days at 10-18 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
5. paulownia wood decoloration treatment method according to claim 1, is characterized in that, realized by following steps:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.15%, the neopelex 0.008% by water and water weight, hydrogen peroxide 4%, and sodium acid carbonate 0.02%, sodium hydrogensulfite 0.07% and borax 0.007% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.15% of first Jiang Shui and water weight, neopelex 0.008% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 1 day at 35-40 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 4%, the sodium acid carbonate 0.02% of entry weight, and stir, become soak for the second time, soaked 2 days at 35-40 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.07%, the borax 0.007% of entry weight in treatment pond, stir, become soak for the third time, soaked 1 day at 35-40 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
6. paulownia wood decoloration treatment method according to claim 1, is characterized in that, realized by following steps:
(1) making sheet: the paulownia log is analyzed line according to the annual ring situation of every paulownia log, according to the principle of producing vertical texture based plate, the paulownia log saw is become the thick burr plate of 12mm along the short transverse solution, afterwards burr plate trimming is sawn into the treating selvedge plate
(2) piling: in treatment pond, the long stuff with cross section 20 * 20mm between every layer for the treatment of selvedge plate separates with treating selvedge plate piling, and piling fixes in treatment pond, and nonmetal weight is pressed on top, floats when preventing from pouring in treatment pond the decolouring treatment fluid;
(3) be equipped with the decolouring treatment fluid, the decolouring treatment fluid is NaOH 0.25%, the neopelex 0.04% by water and water weight, hydrogen peroxide 4%, and sodium acid carbonate 0.04%, sodium hydrogensulfite 0.09% and borax 0.009% form;
(4) soak decolouring: inject the decolouring treatment fluid in the treatment pond of the good treating selvedge plate of piling, soak decolouring, method is that the NaOH 0.25% of first Jiang Shui and water weight, neopelex 0.04% are added to the water, and make soak for the first time, then soak is injected in the treatment pond of the good treating selvedge plate of piling for the first time, submergence treating selvedge plate, and the water consumption during metering submergence treating selvedge plate soaked 4.5 days at 30-35 ℃, make the dissolving of paulownia wood inclusion fully, open the timber pit; And then add hydrogen peroxide 4%, the sodium acid carbonate 0.04% of entry weight, and stir, become soak for the second time, soaked 2.5 days at 30-35 ℃, the treating selvedge plate is decoloured, afterwards, add again sodium hydrogensulfite 0.09%, the borax 0.009% of entry weight in treatment pond, stir, become soak for the third time, soaked 1.5 days at 30-35 ℃, further the treating selvedge plate is decoloured, and the variable color of prevention sheet material, at last, pull the treating selvedge plate that soaks after decolouring out, water rinses 2-3 time, dry, get final product.
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| CN108943257A (en) * | 2018-06-22 | 2018-12-07 | 巴洛克木业(中山)有限公司 | A kind of manufacturing method of against-sunshine color changing wood floors |
| CN108994996A (en) * | 2018-08-06 | 2018-12-14 | 中南林业科技大学 | The Inner dyeing method of timber |
| CN109227838A (en) * | 2018-10-19 | 2019-01-18 | 国家林业局泡桐研究开发中心 | A kind of rubber wood timber efficient decolorizing treatment formulations and decolorizing process technique |
| CN113733266A (en) * | 2021-09-18 | 2021-12-03 | 国家林业和草原局泡桐研究开发中心 | Manufacturing method of multi-layer flame-retardant fireproof board made of paulownia wood |
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| CN115107123A (en) * | 2021-09-18 | 2022-09-27 | 中国林业科学研究院经济林研究所 | Manufacturing method of multi-layer flame-retardant fireproof board made of paulownia wood |
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