CN107030824B - The production method of scientific and technological wood skin - Google Patents
The production method of scientific and technological wood skin Download PDFInfo
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- CN107030824B CN107030824B CN201710295182.3A CN201710295182A CN107030824B CN 107030824 B CN107030824 B CN 107030824B CN 201710295182 A CN201710295182 A CN 201710295182A CN 107030824 B CN107030824 B CN 107030824B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/02—Staining or dyeing wood; Bleaching wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
- B27L1/10—Debarking or removing vestiges of branches from trees or logs; Machines therefor using rotatable tools
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of production methods of scientific and technological wood skin, include the following steps：Log is blocked, rotary-cut peeling, obtains the wood raw material of required size；Wood raw material is bleached, dyes to obtain stained wood；It is 30%~50% that stained wood, which is dried to moisture content,；Then rotary-cut obtains the dyeing wood skin of required size；Dyeing wood skin is dried with plate-press dryer, moisture control is 8%~12%；By the dyeing wood skin after drying into trip temperature ageing treatment.The scientific and technological wood skin of production method production according to the invention, does not recombinate, does not destroy natural wood vein, eliminates 10 procedures compared with the production of traditional science wood, has the advantages such as energy-saving and environmental protection.
Description
Technical field
The present invention relates to wood deep processing field more particularly to a kind of production methods of scientific and technological wood skin.
Background technology
Recombinant Wood production be using one kind by common wood, artificial fast growing wood as raw material, in process, not break
The natural attribute of bad timber, and common wood, artificial fast growing wood natural defect can be changed, it realizes the high-value-use of timber, substitutes
The wood deep processing technique of rare rare tree timber resources.Typically the production technology of Recombinant Wood is：One veneer of product design
It manufactures a veneer and shears one sawing of veneer toning one veneer drying, one veneer gluing, one compression molding, one saw lumber, one finished product.Science and technology
Wood is that the protection of wildwood resource opened up a new way, and how to improve Recombinant Wood production technique, and comprehensive profit is carried out to forest tree resource
It is the important topic that wood working industry faces with, green utilization to meet the needs of social development.
Scientific and technological wood skin is a kind of novel face decoration material, and production is mainly with the carbonization of wood and wood staining for two masters
Direction, Chinese patent literature CN201310110340.5 disclose " a kind of new technology wood production technology ", it can only be to veneer
Charing process is carried out, acquisition wood color is limited, and Chinese patent literature CN104493937A provides a kind of raising timber reactive dye
The method of dye fixing rate, has simple for process, and industrializing implementation is easy, and dye fixing rate is high, good level-dyeing property, and color is various,
But obtain thicker scientific and technological plank or square bar, it is necessary to dipping hot pressing recombination be carried out to thin plate, but the timber formaldehyde after dipping is released
It is high-volume more serious, it is not directly applicable indoor furniture, decoration and Floor Industry.
Blank veneer is made by rotary-cut or slicing in Chinese patent literature CN105461873A, and biomass nano cellulose increases
It carries out impregnating toughening flame-proof dyeing processing in the ternary built solution of solvent, fire retardant and acid dyes composition, then recombinate, then
Saw lumber, but the wood skin texture obtained is inflexible, and striped is unnatural and color transition is stiff.
Therefore, it obtains one kind to be not required to recombinate, the production technology for not destroying the scientific and technological wood skin of the natural lines of timber is this field
Urgent need to solve the problem.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide one kind and do not recombinate, do not destroy timber
The production method of the scientific and technological wood skin of native texture.
In order to solve the above technical problems, providing a kind of production method of scientific and technological wood skin, include the following steps：
S1, log is blocked, rotary-cut peeling, obtains the wood raw material of required size；
S2, the wood raw material is bleached, dyes to obtain stained wood；
S3, the stained wood is dried to moisture content be 30%~50%；Then rotary-cut obtains the dyeing of required size
Wood skin；
S4, the dyeing wood skin is dried with plate-press dryer, moisture control is 8%~12%；
S5, by the dyeing wood skin after drying into trip temperature ageing treatment.
Above-mentioned production method, it is preferred that in the S1 steps, in the S1 steps, the diameter of the log is not more than
When 150mm, log rounding is obtained into round log；When the diameter of the log is more than 150mm, by the rounding at required size
Veneer.
Above-mentioned production method, it is preferred that in the S2 steps, the wood raw material is bleached, dyes preceding process
Sodium hydroxide solution processing, sodium hydroxide solution processing be specially after vacuumizing wood raw material be forced into 0.6~
1.0MPa impregnates 4h in a concentration of 2g/L, the NaOH solution that temperature is 40~50 DEG C；It is in vacuum degree by the wood raw material
0.5h is handled under 0.08MPa.
Above-mentioned production method, it is preferred that the S2 steps are specially：
S2-1, after vacuumizing the processed wood raw material of sodium hydroxide solution, it is immersed in hydrogen peroxide bleaching of pressurizeing, taken out
Vacuum obtains bleaching timber；
S2-2, it will be vacuumized after the bleaching drying of wood, be then immersed in dye liquor dyeing of pressurizeing, then vacuumize；
S2-3, stained wood is obtained using soda ash progress fixation.
Above-mentioned production method, it is preferred that the S2 steps are further comprising the steps of：
S2-4, with soaping, liquid soaps the stained wood.
Above-mentioned production method, it is preferred that in the S2-3 steps, the mass concentration of the soda ash is 20g/L；It is described
In S2-4 steps, the liquid of soaping includes the LR-2 soaping agents of 1wt% and the Na of 20g/L2SiO3。
Above-mentioned production method, it is preferred that the S2-1 steps are specially：The processed timber of the NaOH solution is former
Material vacuumizes 0.5h at -0.08MPa, is then immersed in a concentration of 4~6%, in the hydrogen peroxide that temperature is 40~50 DEG C, pressurization
To 0.2~0.6MPa, 2~3h is bleached；Timber is vacuumized into 0.5h at -0.08MPa and obtains bleaching timber.
Above-mentioned production method, it is preferred that the S2-2 steps are specially：The bleaching timber is placed in 40~50 DEG C to do
It is 27%~33% to be dried in dry kiln to moisture content；Then 0.5h is vacuumized at -0.08MPa；Then bleaching timber is impregnated
In the mixed solution containing 0.5wt% reactive dye and 40g/L anhydrous sodium sulphate, 40~50 DEG C are warming up to, it is forced into 0.6~
1.0MPa carries out 3~4h of dyeing；Then timber is vacuumized into 0.5h at -0.08MPa.
Above-mentioned production method, it is preferred that the hydrogen peroxide and reactive dye are heated by waste heat of boiler tail gas.
Above-mentioned production method, it is preferred that will be described using the waste heat of hydrogen peroxide and reactive dye in the S2-2 steps
Bleach the drying of wood.
Above-mentioned production method, it is preferred that middle in the S3 steps that institute is dried using the waste heat of hydrogen peroxide and reactive dye
State stained wood.
Above-mentioned production method, it is preferred that temperature ageing treatment is specially described in the S5 steps：At room temperature, will
Dyeing wood skin after drying is laid between the upper and lower base plate of cold press, flattened 8 hours with 0.1~0.3MPa or more.
Compared with the prior art, the advantages of the present invention are as follows：
(1) the present invention provides a kind of production method of scientific and technological wood skin, 10 procedures are eliminated compared with the production of traditional science wood,
And through above-mentioned processing step process wood skin, more traditional common Recombinant Wood wood skin have wood skin it is naturally comfortable, process without glue,
Without aldehyde, wood skin absolutely environmental protection, color transition nature, the wood grain produced are clear, and global stereopsis is strong, can by above-mentioned technique
It realizes the industrialized production for having more scale than common dyeing Recombinant Wood, reduces the loss of wood skin production process, improve wood utilization
Rate.It greatly improves production automation level and improves production efficiency.
(2) the present invention provides a kind of production method of scientific and technological wood skin, using reactive dye, pressurization, auxiliary heat can contaminate various
Compared with thick timber, round log or the lumps of wood to diameter or thickness 150mm can contaminate, it is even to contaminate.Pressurization can get through the infiltration lane of timber, promote
Into the infiltration of dyestuff in wood.Auxiliary thermal energy makes the solubility of dyestuff increase, and promotes momentum transmission and matter of the dyestuff on timber
Amount is transmitted, to keep larger-size timber dye saturating.Bleaching liquid and dyeing liquor are heated using residual heat from boiler fume, reduce Recombinant Wood
Dyeing energy consumption and cost.
(3) the present invention provides a kind of production method of scientific and technological wood skin, the wood skin of rotary-cut has been stained wood skin, has been not required to
Rotary-cut or slicing are recombinated again, this makes scientific and technological wood skin environmental protection, is entirely free of aldehyde.
(4) the present invention provides a kind of production methods of scientific and technological wood skin, are added to dyeing wood skin using plate-press dryer
Heat, heat source exchanged with bleaching, dye liquor one is dyed process after flue gas, another kind be dyeing with bleaching liquid discharge after from
The heat source of body has the advantages such as energy conservation and environmental protection, drying effect be good.
Description of the drawings
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention carries out clear, complete description.
Fig. 1 is the flow chart of the production technology of the embodiment of the present invention 1.
Fig. 2 is the UTILIZATION OF VESIDUAL HEAT IN schematic diagram that scientific and technological wood skin is produced in the embodiment of the present invention 1.
Fig. 3 is 1 middle plateform drying machine heat source schematic diagram of the embodiment of the present invention.
Fig. 4 is stained wood outside drawing in the embodiment of the present invention 1.
Specific implementation mode
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
Material and instrument employed in following embodiment and comparative example are commercially available.
Embodiment 1
A kind of production technology of the scientific and technological wood skin of the present invention, by taking poplar science and technology wood skin as an example, referring to Fig. 1, specifically include with
Lower step：
(1) log blocks：Log is truncated into the veneer bolt that length is 1025mm by shear.
(2) pre- rotary-cut：The veneer bolt that the length blocked is 1025mm is subjected to rounding to diameter 150mm by peeler
Round log is obtained, the requirement by thickness 0.5mm length 2025mm of extra diameter is peeled into wood skin, forms thickness 0.5mm × length
The wood skin (preparing scientific and technological wood skin by raw material of wood skin, production technology is consistent with log) of 2025mm × width 1025mm.
(3) it dyes：
3.1, by the good 2m of rotary-cut3The round log of diameter 150mm specifications is packed into pretreatment tank, is vacuumized under -0.08MPa
0.5h.2 tons of 2g/L, 40 DEG C of sodium hydroxide solutions are then injected into, 0.6MPa is forced into, round log is made to be immersed in sodium hydroxide solution
4h.Then the sodium hydroxide solution during dyeing fills is released, round log is vacuumized into 0.5h at -0.08MPa, is obtained pretreated
Round log.
3.2, pretreated round log is transferred in bleaching filling, after vacuumizing 0.5h at -0.08MPa, in bleaching fills
2 tons of mass percentage concentrations 4% are injected, (hydrogen peroxide solution uses waste heat of boiler tail gas in the hydrogen peroxide solution that 40~50 DEG C of temperature
Heated, the UTILIZATION OF VESIDUAL HEAT IN schematic diagram of boiler exhaust gas is referring to Fig. 2), so that pretreated round log is immersed in hydrogen peroxide solution,
It is forced into 0.2MPa, carries out bleaching 2 hours.Then the hydrogen peroxide solution during bleaching fills is released, round log is taken out at -0.08MPa
Vacuum 0.5h obtains bleaching timber.
3.3, bleaching timber is put into 40 DEG C of dry kilns (dry kiln is heated using waste heat of boiler tail gas) and is dried extremely
It is 30% to bleach moisture content.Bleaching timber after drying is fitted into dyeing filling, after vacuumizing 0.5h at -0.08MPa,
In dyeing fills in 2 tons of the injection mixed solution with 40g/L anhydrous sodium sulphate red containing 0.5wt% reactive dye, make the drift after drying
Whitewood's material is dipped into mixed solution, is warming up to 40 DEG C (the red solution of reactive dye is heated using waste heat of boiler tail gas), is added
It is depressed into 0.6MPa and carries out dyeing 3h.Then the mixed solution during dyeing fills is released, round log is vacuumized into 0.5h at -0.08MPa.
3.4,2 tons of 20g/L soda ash color fixing agent, the constant temperature and pressure fixation 30min at 40 DEG C, 0.6MPa are added in dyeing pot
Obtain stained wood.
3.5, by stained wood, with 2 tons of liquid of soaping, (liquid of soaping includes the LR-2 soaping agents and 20g/L of 1wt%
Ns2SiO3), normal pressure is soaped 10min at 80 DEG C.
(4) round log is dried：Stained wood after soaping is dried in conduction oil drying shed, dry heating rate control
At 1 DEG C/h, then constant temperature completes round log drying to 40 DEG C to its moisture control 40~50%.
(5) wood skin rotary-cut：It will be dyed with peeler, the round log after drying is peeled into 0.5mm × length 2025mm × width
The wood skin of 1025mm.
(6) wood skin is dried：It by above-mentioned wood skin, is dried with plate-press dryer, 5 thickness 0.5mm is put between every 2 blocks of plates
The wood skin of × length 2025mm × width 1025mm, (on the one hand the heat source of plate-press dryer comes from dyed plate-press dryer
Process exchanged with bleaching, dye liquor after flue gas, on the other hand come from the heat source of itself after the discharge of dyeing and bleaching liquid, heat source shows
Be intended to referring to Fig. 3) inlet temperature control no more than 50 DEG C of wood skin, wood skin temperature is no more than 40 DEG C；Until dry wood skin contains
Between water rate is 10~12%.
(7) wood skin cutting edge：The dried wood skin for not meeting dimensional standard of above-mentioned steps (8) is subjected to cutting edge to requiring ruler
It is very little.
(8) temperature ageing treatment：The wood skin tiling required in accordance with size in above-mentioned steps (9) is stacked in upper and lower base plate
On, it is flattened at room temperature with cold press, pressure is controlled 0.2, and the time continues 8 hours or more.
(9) it examines：Wood skin is divided into excellent, first-class and certified products.
(10) classification storage.
The parameters of poplar science and technology wood skin are detected, testing result is referring to table 1.
Table 1：The quality measurements table of poplar Recombinant Wood
| Detection project | Poplar science and technology wood skin |
| Appearance | Beautiful in colour uniform, wood wool is uniform, clean mark |
| Size | Thickness 0.5mm × length 2000mm × width 1000mm |
| Moisture content | 8~12% |
| Burst size of methanal | Inspection does not measure |
| Resistance to coloured light fastness | 3 grades |
It was found from the testing result of table 1：It is produced due to process without glue, without aldehyde according to production technology of the present invention
Wood skin absolutely environmental protection, color transition nature, wood grain is clear, and global stereopsis is strong, and appearance is good.
Fig. 4 is the stained wood of the various thickness obtained according to colouring method of the present invention, figure 4, it is seen that according to
The stained wood that the method for the present invention obtains, even dyeing, beautiful in colour, clean mark.
The above is only a part of the embodiment of the present invention, is not intended to limit the present invention in any form.
Although the present invention is as above to disclose a part of preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, in the case where not departing from the Spirit Essence and technical solution of the present invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, every content without departing from technical solution of the present invention, according to the technical essence of the invention does above example
Any simple modification, equivalent replacement, equivalence changes and modification, still fall within technical solution of the present invention protection in the range of.
Claims (4)
1. a kind of production method of science and technology wood skin, which is characterized in that include the following steps：
S1, log is blocked, rotary-cut peeling, obtains the wood raw material of required size；
S2, the wood raw material is bleached, dyes to obtain stained wood；
S3, the stained wood is dried to moisture content be 30%~50%；Then rotary-cut obtains the dyeing wood skin of required size；
S4, the dyeing wood skin is dried with plate-press dryer, moisture control is 8%~12%；
S5, by the dyeing wood skin after drying into trip temperature ageing treatment；
In the S2 steps, the wood raw material is bleached, dyes preceding process sodium hydroxide solution processing, the hydroxide
Sodium solution processing is specially after vacuumizing wood raw material, to be forced into 0.6~1.0MPa, in a concentration of 2g/L, temperature is 40~
4h is impregnated in 50 DEG C of NaOH solution；The wood raw material is handled into 0.5h in the case where vacuum degree is 0.08MPa；
The S2 steps are specially：
S2-1, after vacuumizing the processed wood raw material of sodium hydroxide solution, it is immersed in hydrogen peroxide bleaching of pressurizeing, then taken out true
Sky obtains bleaching timber；
S2-2, it will be vacuumized after the bleaching drying of wood, be then immersed in dye liquor dyeing of pressurizeing, then vacuumize；
S2-3, stained wood is obtained using soda ash progress fixation；
S2-4, with soaping, liquid soaps the stained wood；
The S2-1 steps are specially：The processed wood raw material of the NaOH solution is vacuumized into 0.5h at -0.08MPa,
Then a concentration of 4~6% are immersed in, temperature bleaches 2~3h in 40~50 DEG C of hydrogen peroxide, to be forced into 0.2~0.6MPa；It will
Timber vacuumizes 0.5h at -0.08MPa and obtains bleaching timber；
The S2-2 steps are specially：By the bleaching timber be placed in 40~50 DEG C of dry kilns dry to moisture content be 27%~
33%；Then 0.5h is vacuumized at -0.08MPa；Then bleaching timber is immersed in containing 0.5wt% reactive dye and 40g/L
In the mixed solution of anhydrous sodium sulphate, 40~50 DEG C are warming up to, 0.6~1.0MPa is forced into and carries out 3~4h of dyeing；Then by timber
0.5h is vacuumized at -0.08MPa.
2. production method according to claim 1, which is characterized in that in the S2-3 steps, the quality of the soda ash is dense
Degree is 20g/L；In the S2-4 steps, the liquid of soaping includes the LR-2 soaping agents of 1wt% and the Na of 20g/L2SiO3。
3. production method according to claim 1, which is characterized in that the hydrogen peroxide and reactive dye pass through boiler exhaust gas
Waste heat is heated, and uses the waste heat of hydrogen peroxide and reactive dye by the bleaching drying of wood in the S2-2 steps；It is described
The stained wood is dried using the waste heat of hydrogen peroxide and reactive dye in S3 steps.
4. production method according to any one of claim 1 to 3, which is characterized in that temperature described in the S5 steps
Ageing treatment is specially：At room temperature, between the dyeing wood skin after drying being laid in the upper and lower base plate of cold press, with 0.1~
0.3MPa is flattened 8 hours or more.
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| CN104493943A (en) * | 2014-12-28 | 2015-04-08 | 浙江升华云峰新材股份有限公司 | Production process of scientific wood veneer |
| CN105128111A (en) * | 2015-08-11 | 2015-12-09 | 阜阳祥云木业有限公司 | Wood veneer processing technique |
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