CN102350717A - Wooden sheet dyeing method for performing pretreatment by using cold plasma - Google Patents
Wooden sheet dyeing method for performing pretreatment by using cold plasma Download PDFInfo
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- CN102350717A CN102350717A CN2011102944894A CN201110294489A CN102350717A CN 102350717 A CN102350717 A CN 102350717A CN 2011102944894 A CN2011102944894 A CN 2011102944894A CN 201110294489 A CN201110294489 A CN 201110294489A CN 102350717 A CN102350717 A CN 102350717A
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Abstract
The invention discloses a wooden sheet dyeing method for performing pretreatment by using cold plasma. The process comprises the following steps of: adjusting the water content of a wooden sheet to be 2-12 percent; placing on a feed conveying belt of a cold plasma treatment system; adjusting a space between two electrode rollers to keep the gap between the surface of the wooden sheet and an electrode at 0.5-1.5mm; starting a power supply; adjusting treatment power to be 1-6kW to produce cold plasma through dielectric barrier discharge of working gas between two electrodes; passing the wooden sheet through four pairs of discharge electrode rollers at a speed of 2-20m/min to simultaneously treat two surfaces of the wooden sheet, wherein the working gas between the two pairs of front electrode rollers is air and the working gas between the two pairs of rear electrode rollers is ammonia gas; and immersing the pretreated wooden sheet in direct dye solution for dyeing, and then washing and drying to obtain a dyed wooden sheet. The wooden sheet pretreated by cold plasma has high dyeing speed, high dye uptake and superior light resistance. In addition, the method has the advantages of energy conservation, environmental friendliness, easiness and convenience in operation, high efficiency and capability of continuous working.
Description
Technical field
The present invention relates to a kind of cold plasma that utilizes and carry out pretreated wooden thin plate colouring method, belong to composite wooden material manufacturing technology field.
Background technology
Along with the order benefit minimizing of natural precious timber resource, it is main that industrial cut stock turns to artificial forest wood gradually.The artificial forest speed of growth is very fast, thereby material is more loose, uneven color; Some artificial forest wood is prone to produce variable color etc. in storage, process in addition, and its application at aspects such as building, decorations, furniture, wood-based plate processing is restricted.Through dyeing processing, the texture and the color and luster of simulation rare tree timber are used for building, interior decoration and furniture manufacturing, can obviously improve the ornamental and added value of artificial forest wood with artificial forest wood.
The conventional method that wooden thin plate is dyeed is a thermal diffusion method, is about to be heated to uniform temperature in the wooden thin plate immersion dyeing liquor, utilizes the warm-up movement of dye molecule to permeate, diffuses to timber inside, realizes the dyeing of thin plate.In dyeing course, the horizontal microcapillary system of the vertically big capillary system that dye liquor mainly constitutes through the wood cell chamber and cell membrane and pit formation permeates in timber and spreads.Because the channel diameter of microcapillary system is very little, the horizontal proliferation speed of dye liquor in timber is very slow, thereby when being dyed material web with thickness greatly the time, dyeing kinetics is very slow, and dyeing uniformity is relatively poor.In addition, to the timber direct staining, the power of mutually combining between dyestuff and the timber is mainly intermolecular Van der Waals force or hydrogen bond, is physisorption, and the dyeing light resistance is relatively poor.The problems referred to above have hindered the development of wood staining.Currently press for that exploitation is efficient, the wood staining technology of short period, low energy consumption, compliance with environmental protection requirements.
Plasma is a kind of high-octane material aggregation attitude, wherein contains atom, molecule, photon and the free radical isoreactivity particle of a large amount of electronics, ion, excitation state.Utilize plasma that material is handled the physical change that can cause material surface (like etching, desorb, sputter, inject, excite with ionization etc.) and chemical change (like oxidation, decomposition, crosslinked, polymerization and grafting etc.), to reach the purpose that changes material surface characteristic (comprising hydrophily, hydrophobicity, cohesive, anti-flammability, anti-corrosive properties, static electricity resistance and biocompatibility).Plasma can be divided into high-temperature plasma and low temperature plasma according to the size and the macroscopic property of constituent particle energy; Low temperature plasma is divided into hot plasma (thermodynamical equilibrium) and cold plasma (non-equilibrium thermodynamics) again; Wherein the energy of particle several thousand is spent the hundreds of thousands degree approximately in the hot plasma; Needing to be generally used for the field of high-temperature operation, to prepare superfine powder etc. like magnetohydrodynamic generator, plasma welding, cutting, plasma smelting, plasma spray coating, plasma.The temperature of different particles is inequality in the cold plasma; Wherein the temperature of electronics is spent the hundreds of thousands degree from several thousand, and the temperature of ion and room temperature are very nearly the same, Just because of this; It has important use to be worth, as is used for material surface is carried out modification and light source etc.
Summary of the invention
The objective of the invention is through wooden thin plate is carried out the cold plasma preliminary treatment; Utilize the corrasion of cold plasma to enlarge the interconnection that dye liquor permeates and spreads in wooden thin plate; Utilize oxidation and the grafting of cold plasma to act on wooden thin sheet surface simultaneously and introduce the functional group that can combine with ionic bond with dyestuff; Thereby accelerate the dyeing kinetics of wooden thin plate; Improve dyeing uniformity; Increase dye-uptake, improve the light resistance of the wooden thin plate of dyeing.
Technical solution of the present invention: the processing step of this method is divided into successively,
(1) wooden thin plate is dry: with thickness is that the wooden thin plate of 0.5～5mm is through drying adjustment moisture content to 2～12%.
(2) cold plasma preliminary treatment: wooden thin plate after the drying is placed on the cold plasma treatment system feeding web.Adjust two electrode rollers (electrode covers with the diamond spar pottery) spacing according to being processed wooden gauge of sheet, make the spacing of wooden thin sheet surface and electrode remain on 0.5～1.5mm.Power-on is regulated processing power to 1～6kW, makes the working gas between the electrode produce cold plasma through dielectric barrier discharge.Wooden thin plate passes through four pairs of sparking electrode rollers with the speed of 2～20m/min, and the working gas between preceding two pairs of electrode rollers is an air, and the working gas between back two pairs of electrode rollers is an ammonia.When between two electrodes, applying sufficiently high alternating voltage; Interelectrode working gas is understood breakdown and is produced discharge; The cold plasma that generation contains atom, molecule, photon and the free radical isoreactivity high energy particle of a large amount of electronics, ion, excitation state carries out preliminary treatment simultaneously to two surfaces of wooden thin plate.Working gas between preceding two pairs of electrodes is an air, be used for etching with the activation wooden thin sheet surface, the working gas between back two pairs of electrodes is an ammonia, be used for wooden thin sheet surface grafting can with dyestuff with ionic bond combine-NH
2Functional group.
(3) dyeing: the wooden thin plate after cold plasma handled is immersed in the direct dyes dye liquor for preparing and dyes, and dye liquor temperature is controlled at 80～90 ℃.
(4) it is dry to dye the back: the wooden thin plate that after washing and drying, obtains dyeing of the wooden thin plate after the dyeing.
In above-mentioned wooden thin plate colouring method; Through before dyeing, wooden thin plate being carried out the cold plasma preliminary treatment; Can utilize in the cold plasma high energy particle to the corrasion of wooden thin sheet surface; Increase the specific area of wooden thin plate significantly; Enlarge dye liquor from the interconnection of wooden thin sheet surface, reach the purpose of fast deep dyeing to internal penetration and diffusion.Simultaneously, the active particle that utilizes working gas ammonia discharge back to produce, general-NH
2Graft on wooden thin sheet surface, it can combine with ionic bond with dyestuff, thereby dyestuff and wooden thin plate adhesion are stronger, swashs when dye molecule is subjected to light, and energy is easy to shift, thereby the light resistance of the wooden thin plate of dyeing is improved.
Advantage of the present invention: (1) dyeing kinetics is fast: wooden thin plate dyes after the cold plasma preliminary treatment, and the imbue speed wooden thin plate that is untreated significantly improves, and dyeing energy consumption is descended to some extent, thereby reduced production cost; (2) dark coloured: except having the physics absorption affinity, also combine between dyestuff and wooden thin plate with ionic bond, strong adhesion, dye-uptake significantly improves, and the light resistance of the wooden thin plate that dyes also makes moderate progress; (3) energy-conserving and environment-protective: this invention has proposed a kind of preconditioning technique of dry method non-chemically of wooden thin plate, economizes the energy, and is nuisanceless.Meet the requirement of current industrial production energy-saving and emission-reduction.(4) easy and simple to handle; The serialization operation: can be that the dry workshop section of preceding working procedure on composite (like artificial veneer, the multi-layer solid wood composite floor etc.) industrial production line of raw material is connected with later process applying glue workshop section at present with the wooden thin plate that dyes, realize the serialization processing.
The specific embodiment
Embodiment 1:
Getting thickness is 0.5mm, and length is 100mm, and width is the poplar thin plate of 100mm; After dry, adjust moisture content to 12%; Be placed on the cold plasma treatment system feeding web, adjust the spacing of two electrode rollers, make the spacing of wooden thin sheet surface and electrode remain on 0.5mm.Power-on is regulated processing power to 1kW, makes the working gas between the electrode produce cold plasma through dielectric barrier discharge.Wooden thin plate passes through four pairs of sparking electrode rollers with the speed of 2m/min, and the working gas between preceding two pairs of electrodes is an air, and the working gas between back two pairs of electrodes is an ammonia.Wooden thin plate after cold plasma handled is immersed in the direct dyes dye liquor for preparing and dyes, and dye liquor temperature is 90 ℃, through wash and drying after the wooden thin plate that obtains dyeing.Do not compare with passing through the pretreated wooden thin plate of cold plasma, its imbue speed has improved 9%.Improved 15% at the dye-uptake of dyeing in the time of 4 hours, weathering color fastness has improved 10%.
Embodiment 2:
Getting thickness is 3.0mm, and length is 100mm, and width is the poplar thin plate of 100mm; After dry, adjust moisture content to 8%; Be placed on the cold plasma treatment system feeding web, adjust the spacing of two electrode rollers, make the spacing of wooden thin sheet surface and electrode remain on 1mm.Power-on is regulated processing power to 3.5kW, makes the working gas between the electrode produce cold plasma through dielectric barrier discharge.Wooden thin plate passes through four pairs of sparking electrode rollers with the speed of 10m/min, and the working gas between preceding two pairs of electrodes is an air, and the working gas between back two pairs of electrodes is an ammonia.Wooden thin plate after cold plasma handled is immersed in the direct dyes dye liquor for preparing and dyes, and dye liquor temperature is 90 ℃, through wash and drying after the wooden thin plate that obtains dyeing.Do not compare with passing through the pretreated wooden thin plate of cold plasma, its imbue speed has improved 17%, has improved 20% at the dye-uptake of dyeing in the time of 4 hours, and weathering color fastness has improved 14%.
Embodiment 3:
Getting thickness is 5.0mm, and length is 100mm, and width is the poplar thin plate of 100mm; After dry, adjust moisture content to 2%; Be placed on the cold plasma treatment system feeding web, adjust the spacing of two electrode rollers, make the spacing of wooden thin sheet surface and electrode remain on 1.5mm.Power-on is regulated processing power to 6kW, makes the working gas between the electrode produce cold plasma through dielectric barrier discharge.Wooden thin plate passes through four pairs of sparking electrode rollers with the speed of 20m/min, and the working gas between preceding two pairs of electrodes is an air, and the working gas between back two pairs of electrodes is an ammonia.Wooden thin plate after cold plasma handled is immersed in the direct dyes dye liquor for preparing and dyes, and dye liquor temperature is 80 ℃, through wash and drying after the wooden thin plate that obtains dyeing.Do not compare with passing through the pretreated wooden thin plate of cold plasma, its imbue speed has improved 20%, has improved 22% at the dye-uptake of dyeing in the time of 4 hours, and weathering color fastness has improved 16%.
Claims (1)
1. utilize cold plasma to carry out pretreated wooden thin plate colouring method, it is characterized in that the processing step of this method is divided into successively,
(1) wooden thin plate is dry: with thickness is that the wooden thin plate of 0.5～5mm is through drying adjustment moisture content to 2～12%;
(2) cold plasma preliminary treatment: wooden thin plate after the drying is placed on the cold plasma treatment system feeding web; According to being processed two spacings of wooden gauge of sheet adjustment with diamond spar ceramic coated electrode roller; Make the spacing of wooden thin sheet surface and electrode remain on 0.5～1.5mm; Power-on; Regulate processing power to 1～6kW; Make the working gas between the electrode produce cold plasma by dielectric barrier discharge; Wooden thin plate passes through four pairs of sparking electrode rollers with the speed of 2～20m/min; Working gas between preceding two pairs of electrode rollers is an air; Working gas between the two pairs of electrode rollers in back is an ammonia, and preliminary treatment is carried out on two surfaces of wooden thin plate simultaneously;
(3) dyeing: the wooden thin plate after cold plasma handled is immersed in the direct dyes dye liquor for preparing and dyes, and dye liquor temperature is controlled at 80～90 ℃;
(4) it is dry to dye the back: the wooden thin plate that after washing and drying, obtains dyeing of the wooden thin plate after the dyeing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102944894A CN102350717A (en) | 2011-10-08 | 2011-10-08 | Wooden sheet dyeing method for performing pretreatment by using cold plasma |
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| CN2011102944894A CN102350717A (en) | 2011-10-08 | 2011-10-08 | Wooden sheet dyeing method for performing pretreatment by using cold plasma |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643737A (en) * | 2016-03-31 | 2016-06-08 | 南京林业大学 | Low-temperature plasma modifying and microscale sizing integrated device for wood thin plates |
| CN107139298A (en) * | 2017-06-13 | 2017-09-08 | 浙江省林业科学研究院 | A kind of manufacture method of bamboo material surface load nano-titanium dioxide material |
| CN107471358A (en) * | 2017-09-20 | 2017-12-15 | 安徽三和工艺品有限公司 | A kind of teak discoloration processing method |
| CN108638261A (en) * | 2018-05-17 | 2018-10-12 | 阜南县铭钰柳木工艺品有限公司 | A kind of processing method improving bamboo clappers dyeability |
| CN108714951A (en) * | 2018-05-17 | 2018-10-30 | 阜南县铭钰柳木工艺品有限公司 | A kind of red bamboo clappers |
| CN108748549A (en) * | 2018-06-26 | 2018-11-06 | 阜南县腾博工艺品有限公司 | A kind of Lin's grass low-temperature dyeing method |
| CN108994999A (en) * | 2018-08-08 | 2018-12-14 | 阜南佳利工艺品有限公司 | A kind of colouring method improving rattan anti-pollution characteristic |
| CN109333692A (en) * | 2018-09-20 | 2019-02-15 | 德华兔宝宝装饰新材股份有限公司 | A kind of method that plasma modification height emulates scientific and technological wood skin |
| CN111055359A (en) * | 2019-12-26 | 2020-04-24 | 安徽信达家居有限公司 | Rattan dyeing method capable of improving dyeing fastness |
| CN111805665A (en) * | 2020-06-24 | 2020-10-23 | 浙江省林业科学研究院 | Pretreatment method for improving dyeing performance of bamboo and wood |
| CN114523536A (en) * | 2022-03-09 | 2022-05-24 | 阜南佳利工艺品股份有限公司 | Treatment process for improving wood processing plasticity |
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| CN1147387C (en) * | 2001-07-12 | 2004-04-28 | 国家林业局泡桐研究开发中心 | Dyeing method for producing paulownia single board imitating red sandalwood |
| CN101941224A (en) * | 2010-08-30 | 2011-01-12 | 南京林业大学 | Method for improving bonding performance of woody single plate by utilizing normal pressure cold plasma |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1147387C (en) * | 2001-07-12 | 2004-04-28 | 国家林业局泡桐研究开发中心 | Dyeing method for producing paulownia single board imitating red sandalwood |
| CN101941224A (en) * | 2010-08-30 | 2011-01-12 | 南京林业大学 | Method for improving bonding performance of woody single plate by utilizing normal pressure cold plasma |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643737A (en) * | 2016-03-31 | 2016-06-08 | 南京林业大学 | Low-temperature plasma modifying and microscale sizing integrated device for wood thin plates |
| CN105643737B (en) * | 2016-03-31 | 2018-03-30 | 南京林业大学 | The low-temperature plasma modified and micro applying glue integrated apparatus of wooden thin plate |
| CN107139298A (en) * | 2017-06-13 | 2017-09-08 | 浙江省林业科学研究院 | A kind of manufacture method of bamboo material surface load nano-titanium dioxide material |
| CN107471358A (en) * | 2017-09-20 | 2017-12-15 | 安徽三和工艺品有限公司 | A kind of teak discoloration processing method |
| CN108638261A (en) * | 2018-05-17 | 2018-10-12 | 阜南县铭钰柳木工艺品有限公司 | A kind of processing method improving bamboo clappers dyeability |
| CN108714951A (en) * | 2018-05-17 | 2018-10-30 | 阜南县铭钰柳木工艺品有限公司 | A kind of red bamboo clappers |
| CN108748549A (en) * | 2018-06-26 | 2018-11-06 | 阜南县腾博工艺品有限公司 | A kind of Lin's grass low-temperature dyeing method |
| CN108994999A (en) * | 2018-08-08 | 2018-12-14 | 阜南佳利工艺品有限公司 | A kind of colouring method improving rattan anti-pollution characteristic |
| CN109333692A (en) * | 2018-09-20 | 2019-02-15 | 德华兔宝宝装饰新材股份有限公司 | A kind of method that plasma modification height emulates scientific and technological wood skin |
| CN111055359A (en) * | 2019-12-26 | 2020-04-24 | 安徽信达家居有限公司 | Rattan dyeing method capable of improving dyeing fastness |
| CN111805665A (en) * | 2020-06-24 | 2020-10-23 | 浙江省林业科学研究院 | Pretreatment method for improving dyeing performance of bamboo and wood |
| CN114523536A (en) * | 2022-03-09 | 2022-05-24 | 阜南佳利工艺品股份有限公司 | Treatment process for improving wood processing plasticity |
| CN114523536B (en) * | 2022-03-09 | 2023-09-19 | 阜南佳利工艺品股份有限公司 | Treatment process for improving wood processing plasticity |
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Application publication date: 20120215 |