CN101823275A - Method for dyeing bamboo wood - Google Patents
Method for dyeing bamboo wood Download PDFInfo
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- CN101823275A CN101823275A CN201010161776A CN201010161776A CN101823275A CN 101823275 A CN101823275 A CN 101823275A CN 201010161776 A CN201010161776 A CN 201010161776A CN 201010161776 A CN201010161776 A CN 201010161776A CN 101823275 A CN101823275 A CN 101823275A
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Abstract
The invention relates to a method for dyeing bamboo wood, which comprises the steps of (a) drying the bamboo wood so as to reduce the water content of the bamboo wood to 6-8%; (b) putting the dried bamboo wood into a pressure container and sealing the container; (c) extracting air in the container by a vacuum pump so as to generate a negative pressure in the container, controlling the pressure between 0.06 and 0.09 MPa, and maintaining the pressure for 15-30 minutes; (d) infusing prepared dye into the container and heating so as to make the dye infiltrated into the bamboo wood more quickly; (e) starting the pressure pump, continuously infusing the dye by the pressure pump so as to make the pressure in the container reach 1.5-4 MPa, and maintaining for 2-4 hours; (f) opening a drain valve of the container, extracting the dye and simultaneously closing the heating valve of the container to stop heating; (g) closing the drain valve after the dye is completely removed, and vacuuming the container again by the vacuum pump for 15 minutes; and (h) closing the vacuum pump, opening the container, taking out the bamboo wood and putting the bamboo wood into a drying kiln for drying.
Description
Technical field:
The present invention relates to a kind of method of bamboo dyeing.
Background technology:
Bamboo has that growth cycle is short, output is high, the fast characteristic of becoming a useful person, and carries out bamboo utilization, be to solve the serious deficient optimal path of the forest reserves a few days ago, and be to make the forest resourceies utilization enter one of effective measure of benign cycle and sustainable development.
At present, the bamboo wood color is divided into two kinds of bleaching look (true qualities) and carbonization looks according to bamboo processing technology difference.By padding, can improve the bamboo wood surface quality, improve its visual characteristic and improve its added value, satisfy people to the polyfunctional needs of bamboo wood, be the important method of carrying out the bamboo wood comprehensive utilization, alleviate the pressure that the timber shortage brings to a certain extent.But the bamboo wood of padding can't carry out secondary operations, has seriously hindered dyeing bamboo wood application.
Compare with timber, bamboo does not have horizontal organization, is unfavorable for the infiltration of dye molecule, and this has caused very big difficulty to dyeing.China produces bamboo big country, and a large amount of bamboo products exports are arranged every year.Because present dyeing bamboo wood especially degree of depth staining technique lacks, unstable product quality becomes the key factor that restricts the bamboo production development.
Summary of the invention:
The invention discloses a kind of method of bamboo wood degree of depth dyeing, the bamboo wood entire body is dyed the homogeneous color, guarantee that the color effects of dyeing bamboo wood in the secondary deep-processing process is not destroyed.
Technology solution of the present invention is as follows:
A kind of method of bamboo dyeing is carried out according to following steps;
(a) bamboo wood is carried out drying, the moisture content of bamboo wood is reduced to 6～8%; Bamboo wood herein can be the good bamboo chip of force plane, also can be the bamboo silk after bleaching or the carbonization;
(b) drying is good bamboo wood is put into pressure vessel, airtight container;
(c) take out air in the container with vavuum pump, make to produce negative pressure in the container, pressure is controlled at 0.06～0.09MPa, and keep-ups pressure 15～30 minutes;
(d) in container, inject deployed dyestuff, and heating, so that the faster infiltration bamboo wood of dyestuff inside;
In this step, those of ordinary skills can allocate the coating of corresponding color voluntarily according to the color that the bamboo wood needs dye; The consumption that adds coating also can be controlled according to the degree of depth of bamboo wood color voluntarily by those of ordinary skills; The allotment of coating and consumption are not that invention of the present invention will be put the place, and those of ordinary skills can grasp voluntarily.
(e) starting pressure pump continues to inject dyestuff by compression pump and makes container inner pressure reach 1.5～4MPa, and kept 2～4 hours; Time that keeps and the pressure in the container are inverse ratio, and the pressure height in the container is the time weak point then, and the low then time of pressure is long.
(f) open the tapping valve of container, discharge dyestuff, the valve of closing containers heating simultaneously stops heating;
(g) treat to close tapping valve after dyestuff is got rid of fully, once more container is vacuumized with vavuum pump, the quick drop of excess dyestuff of bamboo wood surface sagging goes out with dyeing afterwards, and the pumpdown time is 15 minutes;
(h) close vavuum pump, open container, take out bamboo wood, put into dry kiln and carry out drying.
Further, the heating and temperature control in the method for described a kind of bamboo dyeing, step (d) in the container is at 85～95 ℃.
Further, the method for described a kind of bamboo dyeing, dried bamboo wood moisture content is 6～8% in the step (h).
Beneficial effect of the present invention is:
By the dyeing of the present invention to bamboo wood, the bamboo wood entire body is dyed the homogeneous color, the bleaching look or the carbonization color of existing bamboo wood dullness have been changed, and product quality is very stable, guarantee that the color effects of dyeing bamboo wood in the secondary deep-processing process is not destroyed, and do not have discharge of wastewater, free from environmental pollution, energy consumption is low, and cost is also very cheap.The range of application that this has just enlarged bamboo wood greatly makes bamboo wood can replace a large amount of timber to process, use, and has saved a large amount of timber, has reduced the felling of forest, has protected environment.
The specific embodiment:
The following stated only is preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment 1; A kind of method of bamboo dyeing is carried out according to following steps;
(a) bamboo wood is carried out drying, the moisture content of bamboo wood is reduced to 6～8%; Bamboo wood is the good bamboo chip of force plane in the present embodiment; The long 2m of bamboo chip, thickness be at 3mm,
(b) drying is good bamboo wood is put into pressure vessel, airtight container;
(c) take out air in the container with vavuum pump, make to produce negative pressure in the container, pressure is controlled at 0.06MPa, and keep-ups pressure 30 minutes;
(d) in container, inject deployed dyestuff, and heating, so that the faster infiltration bamboo wood of dyestuff inside;
(e) starting pressure pump continues to inject dyestuff by compression pump and makes container inner pressure reach 1.5MPa, and kept 4 hours;
(f) open the tapping valve of container, discharge dyestuff, the valve of closing containers heating simultaneously stops heating;
(g) treat to close tapping valve after dyestuff is got rid of fully, once more container is vacuumized with vavuum pump, the quick drop of excess dyestuff of bamboo wood surface sagging goes out with dyeing afterwards, and the pumpdown time is 15 minutes;
(h) close vavuum pump, open container, take out bamboo wood, put into dry kiln and carry out drying.
The drying of among step (a) bamboo wood being carried out can adopt dry kiln to carry out drying, also can carry out air dry, just the air dry time long, it is shorter to carry out drying time with dry kiln, so but need the consume fuel cost than higher.This sentences air dry for best.
Heating and temperature control in the step (d) in the container is at 85 ℃.
Dried bamboo wood moisture content is 6～8% in the step (h).
By present embodiment can with the bamboo wood entire body from inside to outside, dye uniformly, instant bamboo wood carries out secondary operations can not destroy color on it, can substitute a large amount of timber.
Embodiment 2; A kind of method of bamboo dyeing is carried out according to following steps;
(a) bamboo wood is carried out drying, the moisture content of bamboo wood is reduced to 6～8%; Bamboo wood is the good bamboo chip of force plane in the present embodiment; The long 2m of bamboo chip, thickness be at 2mm,
(b) drying is good bamboo wood is put into pressure vessel, airtight container;
(c) take out air in the container with vavuum pump, make to produce negative pressure in the container, pressure is controlled at 0.09MPa, and keep-ups pressure 15 minutes;
(d) in container, inject deployed dyestuff, and heating, so that the faster infiltration bamboo wood of dyestuff inside;
(e) starting pressure pump continues to inject dyestuff by compression pump and makes container inner pressure reach 1.5MPa, and kept 2 hours;
(f) open the tapping valve of container, discharge dyestuff, the valve of closing containers heating simultaneously stops heating;
(g) treat to close tapping valve after dyestuff is got rid of fully, once more container is vacuumized with vavuum pump, the quick drop of excess dyestuff of bamboo wood surface sagging goes out with dyeing afterwards, and the pumpdown time is 15 minutes;
(h) close vavuum pump, open container, take out bamboo wood, put into dry kiln and carry out drying.
Heating and temperature control in the step (d) in the container is at 95 ℃.
Dried bamboo wood moisture content is 6～8% in the step (h).
Embodiment 3; A kind of method of bamboo dyeing is carried out according to following steps;
(a) bamboo wood is carried out drying, the moisture content of bamboo wood is reduced to 6～8%; Bamboo wood is the good bamboo chip of force plane in the present embodiment; The long 1m of bamboo chip, thickness be at 1mm,
(b) drying is good bamboo wood is put into pressure vessel, airtight container;
(c) take out air in the container with vavuum pump, make to produce negative pressure in the container, pressure is controlled at 0.07MPa, and keep-ups pressure 25 minutes;
(d) in container, inject deployed dyestuff, and heating, so that the faster infiltration bamboo wood of dyestuff inside;
(e) starting pressure pump continues to inject dyestuff by compression pump and makes container inner pressure reach 3.0MPa, and kept 3 hours;
(f) open the tapping valve of container, discharge dyestuff, the valve of closing containers heating simultaneously stops heating;
(g) treat to close tapping valve after dyestuff is got rid of fully, once more container is vacuumized with vavuum pump, the quick drop of excess dyestuff of bamboo wood surface sagging goes out with dyeing afterwards, and the pumpdown time is 15 minutes;
(h) close vavuum pump, open container, take out bamboo wood, put into dry kiln and carry out drying.
Heating and temperature control in the step (d) in the container is at 90 ℃.
Dried bamboo wood moisture content is 6～8% in the step (h).
Embodiment 4; A kind of method of bamboo dyeing is carried out according to following steps;
(a) bamboo wood is carried out drying, the moisture content of bamboo wood is reduced to 6～8%; Bamboo wood is the good bamboo chip of force plane in the present embodiment; The long 2m of bamboo chip, thickness be at 0.5mm,
(b) drying is good bamboo wood is put into pressure vessel, airtight container;
(c) take out air in the container with vavuum pump, make to produce negative pressure in the container, pressure is controlled at 0.08MPa, and keep-ups pressure 20 minutes;
(d) in container, inject deployed dyestuff, and heating, so that the faster infiltration bamboo wood of dyestuff inside;
(e) starting pressure pump continues to inject dyestuff by compression pump and makes container inner pressure reach 2.5MPa, and kept 2.5 hours;
(f) open the tapping valve of container, discharge dyestuff, the valve of closing containers heating simultaneously stops heating;
(g) treat to close tapping valve after dyestuff is got rid of fully, once more container is vacuumized with vavuum pump, the quick drop of excess dyestuff of bamboo wood surface sagging goes out with dyeing afterwards, and the pumpdown time is 15 minutes;
(h) close vavuum pump, open container, take out bamboo wood, put into dry kiln and carry out drying.
Heating and temperature control in the step (d) in the container is at 88 ℃.
Dried bamboo wood moisture content is 6～8% in the step (h).
Claims (3)
1. the method for a bamboo dyeing is characterized in that:
Carry out according to following steps;
(a) bamboo wood is carried out drying, the moisture content of bamboo wood is reduced to 6～8%;
(b) drying is good bamboo wood is put into pressure vessel, airtight container;
(c) take out air in the container with vavuum pump, make to produce negative pressure in the container, pressure is controlled at 0.06～0.09MPa, and keep-ups pressure 15～30 minutes;
(d) in container, inject dyestuff, and heating;
(e) starting pressure pump continues to inject dyestuff by compression pump and makes container inner pressure reach 1.5～4MPa, and kept 2～4 hours;
(f) open the tapping valve of container, discharge dyestuff, the valve of closing containers heating simultaneously stops heating;
(g) treat to close tapping valve after dyestuff is got rid of fully, once more container is vacuumized with vavuum pump, the quick drop of excess dyestuff of bamboo wood surface sagging goes out with dyeing afterwards, and the pumpdown time is 15 minutes;
(h) close vavuum pump, open container, take out bamboo wood, put into dry kiln and carry out drying.
2. the method for a kind of bamboo dyeing according to claim 1 is characterized in that: the heating and temperature control in the step (d) in the container is at 85～95 ℃.
3. the method for a kind of bamboo dyeing according to claim 1 and 2, it is characterized in that: dried bamboo wood moisture content is 6～8% in the step (h).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010161776A CN101823275A (en) | 2010-05-04 | 2010-05-04 | Method for dyeing bamboo wood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010161776A CN101823275A (en) | 2010-05-04 | 2010-05-04 | Method for dyeing bamboo wood |
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| CN101823275A true CN101823275A (en) | 2010-09-08 |
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| CN201010161776A Pending CN101823275A (en) | 2010-05-04 | 2010-05-04 | Method for dyeing bamboo wood |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152364A (en) * | 2010-12-29 | 2011-08-17 | 覃健林 | Colorful bamboo splint processing method |
| CN102294725A (en) * | 2011-06-17 | 2011-12-28 | 吉林森工金桥地板集团有限公司 | Processing method of black oak surface plate solid wood composite floor |
| CN102303334A (en) * | 2011-08-25 | 2012-01-04 | 国家林业局竹子研究开发中心 | Deep-layer coloring method of bamboo |
| CN104385407A (en) * | 2014-10-15 | 2015-03-04 | 浙江安吉双虎竹木业有限公司 | Bamboo wood making method, dyeing method, dyeing water, and preparation method of dyeing water |
| CN107053411A (en) * | 2017-03-16 | 2017-08-18 | 浙江省林产品质量检测站 | A kind of colouring method of bamboo material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613621A (en) * | 2003-11-03 | 2005-05-11 | 常庆发 | Method for coloring wood in black |
| CN101116982A (en) * | 2006-08-02 | 2008-02-06 | 庞雄乾 | Bamboo wood staining method |
| CN101125433A (en) * | 2006-08-18 | 2008-02-20 | 魏象 | Wood dyeing method using pressure-increasing and pressure-decreasing technology |
| CN101574825A (en) * | 2008-05-05 | 2009-11-11 | 萌立尔有限公司 | Method for processing chromatic bamboo integration material |
| CN101579880A (en) * | 2009-06-11 | 2009-11-18 | 国家林业局竹子研究开发中心 | Manufacturing technique of dyeing bamboo filament plate |
-
2010
- 2010-05-04 CN CN201010161776A patent/CN101823275A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613621A (en) * | 2003-11-03 | 2005-05-11 | 常庆发 | Method for coloring wood in black |
| CN101116982A (en) * | 2006-08-02 | 2008-02-06 | 庞雄乾 | Bamboo wood staining method |
| CN101125433A (en) * | 2006-08-18 | 2008-02-20 | 魏象 | Wood dyeing method using pressure-increasing and pressure-decreasing technology |
| CN101574825A (en) * | 2008-05-05 | 2009-11-11 | 萌立尔有限公司 | Method for processing chromatic bamboo integration material |
| CN101579880A (en) * | 2009-06-11 | 2009-11-18 | 国家林业局竹子研究开发中心 | Manufacturing technique of dyeing bamboo filament plate |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152364A (en) * | 2010-12-29 | 2011-08-17 | 覃健林 | Colorful bamboo splint processing method |
| CN102152364B (en) * | 2010-12-29 | 2013-03-13 | 覃健林 | Colorful bamboo splint processing method |
| CN102294725A (en) * | 2011-06-17 | 2011-12-28 | 吉林森工金桥地板集团有限公司 | Processing method of black oak surface plate solid wood composite floor |
| CN102303334A (en) * | 2011-08-25 | 2012-01-04 | 国家林业局竹子研究开发中心 | Deep-layer coloring method of bamboo |
| CN102303334B (en) * | 2011-08-25 | 2014-03-26 | 国家林业局竹子研究开发中心 | Deep-layer coloring method of bamboo |
| CN104385407A (en) * | 2014-10-15 | 2015-03-04 | 浙江安吉双虎竹木业有限公司 | Bamboo wood making method, dyeing method, dyeing water, and preparation method of dyeing water |
| CN107053411A (en) * | 2017-03-16 | 2017-08-18 | 浙江省林产品质量检测站 | A kind of colouring method of bamboo material |
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Application publication date: 20100908 |