CN107471366A - A kind of redwood dehumidification process based on suppression cytoactive - Google Patents
A kind of redwood dehumidification process based on suppression cytoactive Download PDFInfo
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- CN107471366A CN107471366A CN201710924812.9A CN201710924812A CN107471366A CN 107471366 A CN107471366 A CN 107471366A CN 201710924812 A CN201710924812 A CN 201710924812A CN 107471366 A CN107471366 A CN 107471366A
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- redwood
- fermentation vat
- cytoactive
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- dehumidification process
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Classifications
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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
- 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
- B27K3/10—Apparatus
-
- 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
- B27K3/34—Organic impregnating agents
-
- 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
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- 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
- B27K2240/00—Purpose of the treatment
- B27K2240/70—Hydrophobation treatment
Abstract
The invention provides a kind of based on the redwood dehumidification process for suppressing cytoactive, belong to redwood manufacture field.Including pretreatment, shock heating quenching circulation pressurization is soaked, heating is dried, heating wet down drying steps, combined by shock heating quenching temperature change and Triiodobenzoic acid, the pectic substance in secondary wall and intercellular layer in the cell membrane of redwood cell and cellulolytic activity are destroyed, reduces the breathing campaign in follow-up temperature-fall period cell membrane.This technique can shorten redwood drying time, and drying effect is good.
Description
Technical field
The invention belongs to redwood manufacture field, is related to a kind of based on the redwood dehumidification process for suppressing cytoactive.
Background technology
Redwood, the general designation of high-end, the rare furniture woodses of China initially refer to the hardwood of red, and kind is more；In last century
After the eighties, everybody increase in demand to mahogany furniture, industry is urgently to be speculated, and country is carried out according to indexs such as density to redwood
Specification, redwood specification it is：Two sections, five category, eight classes, 33 kinds.Redwood because it is slow-growing, material is hard, growth period all
More than the centuries, many redwood of south China are originated in, what Zao Ming, clear period were just cut down remains little, of today
Redwood, it is to originate in Southeast Asia, Africa mostly, there are cultivation cultivation and introducing and planting in China Guangdong, Yunnan.The difference of timber heart sapwood is aobvious
Bright, sapwood is narrow, canescence；The yellowish red of heartwood is changed into aubergine, certain Huanghua Pear, Burma long to redness of the skin or complexion when being exposed in air
The color of the timber such as pasture flower pears, Door frame will not take on a red color.Wood figure is attractive in appearance, and material is hard, durable, is valuable furniture and work
Skill artistic products etc. use material.Redwood is torrid areas pulse family wingceltis category timber, mainly originates in India, China Guangdong, Yunnan and Nan Yang group
Island also produces, and is common rare hardwood." redwood " is the title of Jiangsu and Zhejiang Provinces and north prevalence, and the band of Guangdong one is commonly called as " sour branch
Wood ".
And it is to the general flow of mahogany furniture processing at present：Sorting, drying and processing, mortise, carve, assembling, scraped finish, on
Paint.Wherein, drying and processing be redwood drying steps, now with drying means generally use steam convection current method, change
Wet-bulb temperature and dry-bulb temperature realize drying, and redwood timber is made up of cell, and each cell is by lumen and thin again
Cell wall composition.Possessed pit on cell membrane, the lumen of each cell is connected with each other, constitutes big capillary piping
System；And cell membrane is mainly made up of microfibre, microfibre is made up of protomere again, is had between microfibre and between protomere
Space constitute microcapillary system, the moisture in timber is present among the two capillary systems.In big capillary
There is Free water in system, there is hygroscopic water in microcapillary system, generally, redwood initially evaporates freedom when drying
Water, hygroscopic water is secondly evaporated, the former is realized by pit and moved, and the latter is real by the space between microfibre and between protomere
Now move, but the special construction of redwood is different from remaining wood structure, its internal fiber is completely embedded, and global density is big, carefully
Pit and gap on cell wall are respectively less than remaining timber, and larger difficulty is brought to drying, drying time very as long as.
The content of the invention
The purpose of the present invention is to be directed to the above-mentioned problems in the prior art, there is provided one kind is based on suppression cytoactive
Redwood dehumidification process, should based on suppress cytoactive redwood dehumidification process can shorten redwood drying time, drying effect
Good, solving the drying process of existing redwood, to dry difficulty big, and drying time waits so long problem.
The purpose of the present invention can be realized by following technical proposal：A kind of redwood dehumidifying work based on suppression cytoactive
Skill, comprise the following steps：
A, pre-process, the redwood under cutting down is rinsed after removing branches and leaves by giant to redwood surface, is rinsed extremely
Untill redwood surface is spilt without chip；
The chip on redwood surface and spot are cleaned, prevents from entering in follow-up solution and causes redwood surface to block.
B, shock heating quenching circulation pressurization immersion, added in the first fermentation vat Triiodobenzoic acid powder and concentration be 75% with
On ethanol water, be sufficiently stirred make Triiodobenzoic acid powder dissolve, then by it is above-mentioned through flushing redwood be completely soaked
In in the first fermentation vat, to the first fermentation vat bottom be heated to mixed solution temperature as 65 DEG C -75 DEG C and keep constant temperature, it is right
First fermentation vat is sealed and passage is left in top, and carrying out supercharging to above-mentioned mixed solution by supercharging equipment makes mixing molten
Liquid energy enough enters in redwood, and boost pressure 130Mpa-150Mpa, pressurization time is 10-12 hours；
Then the ethanol water that concentration is more than 40% is added in the second fermentation vat, above-mentioned redwood is soaked from first
Take out and be completely soaked in the second fermentation vat in pond, it is zero that the second fermentation vat bottom, which is carried out being cooled to ethanol water temperature,
Lower 20 DEG C-subzero 10 DEG C, the second fermentation vat is sealed and passage is left in top, by supercharging equipment to above-mentioned mixing
Solution, which carries out supercharging, enables mixed solution to enter in redwood, boost pressure 130Mpa-150Mpa, pressurization time 10-12
Hour；
Again above-mentioned redwood is taken out to be put into the first fermentation vat of equal conditions out of second fermentation vat and carries out same operation,
After above-mentioned redwood is taken out from the first fermentation vat be again put into the second fermentation vat of equal conditions and carry out same operation, repeatedly
Operate to redwood and be put into the number of the first fermentation vat and the second fermentation vat and be no less than 4 times and redwood last time is from the first immersion
Taken out in pond；
The mixing liquid of high temperature expands redwood after entering redwood inside, now the cell membrane extension of redwood cell,
Making the pit on cell membrane, the gap between microfibre between micro- colloid becomes big, and Triiodobenzoic acid powder is dissolved in alcohol solvent,
And there is growth inhibiting effect to cell, mixing liquid is slowly entered inside redwood under the effect of the pressure, Triiodobenzoic acid
The cell membrane of redwood cell is acted on, is destroyed the pectic substance in secondary wall and intercellular layer in cell membrane and cellulolytic activity,
The breathing campaign in follow-up temperature-fall period cell membrane is reduced, then the redwood of high temperature is positioned in low temperature environment rapidly, suddenly
The change of heat quenching temperature makes the breathing function of cell membrane further be destroyed, and cell membrane only enters in the presence of Triiodobenzoic acid
The trickle rebound motion of row, then redwood is played back in hot environment rapidly, the function that cell membrane is repeated is lost substantially
Lose, and even permanent loss function can not be recovered after a short period of time, now pit, between microfibre between micro- colloid gap
Size is maximum, the Free water in follow-up technique in lumen and the hygroscopic water liquid in cell membrane, gaseous state or steam
Combining form can discharge redwood faster.Ethanol also has the function that sterilizing as the organic solvent of Triiodobenzoic acid,
Ethanol, which enters inside redwood, to be killed to the moth inside redwood, play a protective role.Other redwood last time from
The process for saving follow-up redwood preheating is taken out in first fermentation vat, has saved the time.Redwood last time is out of first fermentation vat
The temperature taken out now is 65 DEG C -75 DEG C and humidity is close to saturation, realization pair while quenching circulation pressurization that progress is shock heating is soaked
The perfect preheating of redwood.
C, heat up drying, makes temperature for 75 DEG C -85 DEG C and humidity 65g/m3-75g/m3Humid air pass through 130Mpa-
150Mpa pressure pressurization Posterior circle is along above-mentioned redwood thickness direction by the way that the time is 2-3 days, and humid air gait of march is
1.5m/s-2.5m/s；
Mainly the moisture content of redwood sapwood is dried for the operation in the stage, next to that the moisture content in induction redwood heartwood
Along moisture gradient by pit, sapwood is led in gap between micro- colloid between microfibre.
D, the wet down that heats up is dried, and makes that temperature is 85 DEG C -95 DEG C and humidity is 35g/m3- 45g/m3Humid air pass through
130Mpa-150Mpa pressure pressurization Posterior circle is along above-mentioned redwood thickness direction by the way that the time is 1-2 days, and humid air is advanced fast
Spend for 4m/s-5m/s；
The stage is mainly to strengthen the induction for moisture content in redwood heartwood, makes it along moisture gradient by pit, micro-
Lead to sapwood in gap between micro- colloid between fiber, finally goes out from along through sapwood evaporation.
In a kind of above-mentioned redwood dehumidification process based on suppression cytoactive, what the Triiodobenzoic acid powder added
Measure and be defined to reach saturation solubility in ethanol water.
The Triiodobenzoic acid of high concentration just has the inhibition to cytoactive.
In a kind of above-mentioned redwood dehumidification process based on suppression cytoactive, the supercharging equipment is high-pressure pump.
In a kind of above-mentioned redwood dehumidification process based on suppression cytoactive, first fermentation vat and the second immersion
It is 200Mpa that pond maximum, which bears pressure,.
In a kind of above-mentioned redwood dehumidification process based on suppression cytoactive, the increasing to redwood of the supercharging equipment
Direction is pressed perpendicular to redwood axial direction.
Because the path of redwood thickness direction is short, solution more easily can enter in redwood.
It is above-mentioned it is a kind of based on the redwood dehumidification process for suppressing cytoactive in, redwood is every time from the first fermentation vat or the
Two fermentation vats, which were taken out to the time for being put into the first fermentation vat or the second fermentation vat, is no more than 10min.
This kind sets the mitigation reaction time that can reduce redwood cell, makes the activity of redwood cell without recovering.
Compared with prior art, there is advantages below based on the redwood dehumidification process for suppressing cytoactive：
1st, the swollen of cell membrane is made by the change of shock heating quenching temperature based on the redwood dehumidification process for suppressing cytoactive
Contracting function is destroyed, and makes pit, and the size expansion in gap is maximum and do not bounce back between micro- colloid between microfibre.
2nd, shock heating quenching temperature change and Triiodobenzoic acid knot are passed through based on the redwood dehumidification process for suppressing cytoactive
Close, be destroyed the pectic substance in secondary wall and intercellular layer in the cell membrane of redwood cell and cellulolytic activity, reduce rear
The breathing campaign of continuous temperature-fall period cell membrane.
3rd, also have as the organic solvent of Triiodobenzoic acid based on the redwood dehumidification process ethanol for suppressing cytoactive
The effect of sterilizing, ethanol, which enters inside redwood, to be killed to the moth inside redwood, play a protective role.
Embodiment
Using the steam drying in the current drying of wood as a comparison, subjects are 10 purple elms purchased by Guangdong.
Steam drying (is dried the subsequent adjustment stage, not opposed including steam-injection stage (preheating), drying stage, damping stage
Than), main contrast steams stage and drying stage spent time.
As shown in Table 1 and Table 2.
As shown in Tables 1 and 2,10 purple elms are 8.2%-9.8% via the last gained moisture content of steam seasoning,
Spent time is 12 days (not including the damping stage).
10 purple elms purchased by Guangdong, bag are similarly based on the redwood dehumidification process subjects for suppressing cytoactive
Include following steps：
A, pre-process, the redwood under cutting down is rinsed after removing branches and leaves by giant to redwood surface, is rinsed extremely
Untill redwood surface is spilt without chip；
B, shock heating quenching circulation pressurization immersion, it is 80% that Triiodobenzoic acid powder and concentration are added in the first fermentation vat
Ethanol water, being sufficiently stirred dissolves Triiodobenzoic acid powder, is then completely soaked above-mentioned by the redwood rinsed in the
In one fermentation vat, to the first fermentation vat bottom be heated to mixed solution temperature as 70 DEG C and keep constant temperature, soaked to first
Pond is sealed and passage is left in top, and carrying out supercharging to above-mentioned mixed solution by supercharging equipment enables mixed solution to enter
Enter in redwood, boost pressure 145Mpa, pressurization time is 10 hours；
Then the ethanol water that concentration is 50% is added in the second fermentation vat, by above-mentioned redwood out of first fermentation vat
Take out and be completely soaked in the second fermentation vat, it is subzero 15 that the second fermentation vat bottom, which is carried out being cooled to ethanol water temperature,
DEG C, the second fermentation vat is sealed and passage is left in top, carrying out supercharging to above-mentioned mixed solution by supercharging equipment makes
Mixed solution can enter in redwood, boost pressure 145Mpa, and pressurization time is 10 hours；
Again above-mentioned redwood is taken out to be put into the first fermentation vat of equal conditions out of second fermentation vat and carries out same operation,
After above-mentioned redwood is taken out from the first fermentation vat be again put into the second fermentation vat of equal conditions and carry out same operation, repeatedly
Operate to redwood be put into the first fermentation vat number be 5 times and be put into the second fermentation vat number be 4 times and redwood last time
Taken out out of first fermentation vat；
C, heat up drying, makes temperature for 80 DEG C and humidity 70g/m3Humid air by being followed after the pressurization of 145Mpa pressure
Ring is along above-mentioned redwood thickness direction by the way that the time is 2 days, and humid air gait of march is 2m/s；
D, the wet down that heats up is dried, and makes that temperature is 90 DEG C and humidity is 40g/m3Humid air pressurizeed by 145Mpa pressure
Posterior circle is along above-mentioned redwood thickness direction by the way that the time is 1 day, and humid air gait of march is 4m/s；
By above step, the moisture content and spent time of subjects are as shown in table 3 and table 4.
It can be obtained by table 3 and table 4, the moisture content for testing timber is 8.36%-9.54%.Spent time is approximately equal to 6.8
My god (not including the damping stage), compared to having significant shorten in time by way of steam drying.
This technique needs redwood surface painting after the drying cured in following process, in order to prevent redwood from adding by this technique
Inner aqueous rate holds labile situation after work.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (6)
1. it is a kind of based on the redwood dehumidification process for suppressing cytoactive, comprise the following steps：
A, pre-process, the redwood under cutting down is rinsed after removing branches and leaves by giant to redwood surface, is rinsed to redwood
Untill surface is spilt without chip；
B, shock heating quenching circulation pressurization immersion, it is more than 75% that Triiodobenzoic acid powder and concentration are added in the first fermentation vat
Ethanol water, being sufficiently stirred dissolves Triiodobenzoic acid powder, is then completely soaked above-mentioned by the redwood rinsed in the
In one fermentation vat, be heated to mixed solution temperature as 65 DEG C -75 DEG C to the first fermentation vat bottom and keep constant temperature, to first
Fermentation vat is sealed and passage is left in top, and carrying out supercharging to above-mentioned mixed solution by supercharging equipment enables mixed solution
Enough enter in redwood, boost pressure 130Mpa-150Mpa, pressurization time is 10-12 hours；
Then the ethanol water that concentration is more than 40% is added in the second fermentation vat, by above-mentioned redwood out of first fermentation vat
Take out and be completely soaked in the second fermentation vat, it is subzero 20 that the second fermentation vat bottom, which is carried out being cooled to ethanol water temperature,
DEG C-subzero 10 DEG C, the second fermentation vat is sealed and passage is left in top, above-mentioned mixed solution is entered by supercharging equipment
Row supercharging enables mixed solution to enter in redwood, and boost pressure 130Mpa-150Mpa, pressurization time is 10-12 hours；
Again above-mentioned redwood is taken out to be put into the first fermentation vat of equal conditions out of second fermentation vat and carry out same operation, finished
Again above-mentioned redwood is taken out to be put into the second fermentation vat of equal conditions from the first fermentation vat afterwards and carry out same operation, operated repeatedly
The number that the first fermentation vat and the second fermentation vat are put into redwood is no less than 4 times and redwood last time is out of first fermentation vat
Take out；
C, heat up drying, makes temperature for 75 DEG C -85 DEG C and humidity 65g/m3-75g/m3Humid air pass through 130Mpa-150Mpa's
Pressure pressurization Posterior circle is along above-mentioned redwood thickness direction by the way that the time is 2-3 days, and humid air gait of march is 1.5m/s-2.5m/
s；
D, the wet down that heats up is dried, and makes that temperature is 85 DEG C -95 DEG C and humidity is 35g/m3-45g/m3Humid air pass through 130Mpa-
150Mpa pressure pressurization Posterior circle is along above-mentioned redwood thickness direction by the way that the time is 1-2 days, and humid air gait of march is 4m/
s-5m/s。
It is 2. according to claim 1 a kind of based on the redwood dehumidification process for suppressing cytoactive, it is characterised in that described three
The amount that iodo-benzoic acid powder adds is defined to reach saturation solubility in ethanol water.
It is 3. according to claim 1 a kind of based on the redwood dehumidification process for suppressing cytoactive, it is characterised in that the increasing
Pressure equipment is high-pressure pump.
It is 4. according to claim 1 a kind of based on the redwood dehumidification process for suppressing cytoactive, it is characterised in that described the
It is 200Mpa that one fermentation vat and the second fermentation vat maximum, which bear pressure,.
It is 5. according to claim 1 a kind of based on the redwood dehumidification process for suppressing cytoactive, it is characterised in that the increasing
The supercharging direction to redwood of equipment is pressed perpendicular to redwood axial direction.
It is 6. according to claim 1 a kind of based on the redwood dehumidification process for suppressing cytoactive, it is characterised in that redwood is every
Secondary taken out from the first fermentation vat or the second fermentation vat to the time for being put into the first fermentation vat or the second fermentation vat is no more than 10min.
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| CN201710924812.9A CN107471366B (en) | 2017-10-01 | 2017-10-01 | A kind of redwood dehumidification process based on inhibition cell activity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251400A (en) * | 2020-01-16 | 2020-06-09 | 北京市飞宇商贸有限公司 | Manufacturing method of redwood furniture |
| CN114789490A (en) * | 2022-04-18 | 2022-07-26 | 中山市伍氏大观园家具有限公司 | Redwood furniture production line |
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|---|---|---|---|---|
| DE2437372A1 (en) * | 1973-08-02 | 1975-02-13 | Sadi Soc | METHOD AND DEVICE FOR DRYING IN PARTICULAR HYGROSCOPIC MATERIAL, SUCH AS E. WOOD |
| JPH09314513A (en) * | 1996-05-27 | 1997-12-09 | Hokuetsu Denken Kk | Drying method of wood |
| CN103072166A (en) * | 2012-12-21 | 2013-05-01 | 中国林业科学研究院木材工业研究所 | Closed wood fiber drying method |
| CN104552518A (en) * | 2015-01-10 | 2015-04-29 | 陈霞 | Dehumidification process of redwood |
-
2017
- 2017-10-01 CN CN201710924812.9A patent/CN107471366B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2437372A1 (en) * | 1973-08-02 | 1975-02-13 | Sadi Soc | METHOD AND DEVICE FOR DRYING IN PARTICULAR HYGROSCOPIC MATERIAL, SUCH AS E. WOOD |
| JPH09314513A (en) * | 1996-05-27 | 1997-12-09 | Hokuetsu Denken Kk | Drying method of wood |
| CN103072166A (en) * | 2012-12-21 | 2013-05-01 | 中国林业科学研究院木材工业研究所 | Closed wood fiber drying method |
| CN104552518A (en) * | 2015-01-10 | 2015-04-29 | 陈霞 | Dehumidification process of redwood |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251400A (en) * | 2020-01-16 | 2020-06-09 | 北京市飞宇商贸有限公司 | Manufacturing method of redwood furniture |
| CN114789490A (en) * | 2022-04-18 | 2022-07-26 | 中山市伍氏大观园家具有限公司 | Redwood furniture production line |
| CN114789490B (en) * | 2022-04-18 | 2023-08-08 | 中山市伍氏大观园家具有限公司 | Redwood furniture production line |
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| CN107471366B (en) | 2019-10-01 |
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