CN110154186A - A kind of aqueous wood stain and color method - Google Patents
A kind of aqueous wood stain and color method Download PDFInfo
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- CN110154186A CN110154186A CN201910279764.1A CN201910279764A CN110154186A CN 110154186 A CN110154186 A CN 110154186A CN 201910279764 A CN201910279764 A CN 201910279764A CN 110154186 A CN110154186 A CN 110154186A
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D15/00—Woodstains
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Forests & Forestry (AREA)
- Paints Or Removers (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The present invention relates to stain for wood technical field more particularly to a kind of aqueous wood stain and color methods.Aqueous wood stain main component of the present invention includes pigment, dopamine, nano-cellulose and aqueous high molecular resin.The present invention solves existing stain for wood technology there is the problems such as uneven to wood permeability, wood surface coloring effect is bad, and provided aqueous wood stain modest viscosity, adhesive force are strong, and partial size is small, dispersion effect is good, it is easier to penetrate into wood internal.
Description
Technical field
The present invention relates to stain for wood technical field more particularly to a kind of aqueous wood stain and color methods.
Background technique
Wood color is an important factor for determining consumer's impression, in order to improve the decoration function and product valence of woodwork
Value, will colour timber and wood materials.For the efficient utilization for realizing artificial forest wood, it is also desirable to be changed by technology of mix colors
Good poor quality material, copies rare timber, to improve the use value of timber, meets people to the multifarious demand of woodwork.It is right
Wood color is adjusted, and timber can be made to have good and programmable surface property, significantly improve utilization rate.But timber contaminates
The auxiliary agent of color is mostly heavily contaminated drug, serious harm can be generated to human body in processing and application process, through hyperchromatic
The physical property of timber can also reduce sometimes, and the processing of remaining dyeing waste liquid also fails to be well solved after dyeing.
There is the problems such as uneven to wood permeability, wood surface coloring effect is bad for existing stain for wood technology.
Since aqueous emulsion paint is when moisture evaporation, close to each other between emulsion particle, contact stacks and generates capillary pressure
Power makes to generate extruding between particle, interpenetrates and form film.But in film forming procedure also can gradually to embrocate movement generate resistance
Power, and increase at any time and increase, lead to embrocate operation becoming difficult, therefore coloring effect is bad.Although adding in formula
Enter the dry polymer that is delayed, its permeability can be improved in terms of, liquid flowing dry from delay, improve surface coloring effect, such as
Tang Shuhua etc. (coatings industry, 2012,42,45-48) joined 2% delay desiccant, but the drying of the method in formula
Time extends, and treatment effeciency can be brought to reduce.In addition, the poor dispersion force of waterborne polymeric particle and its being bonded with wood surface
Power not enough also can make wood surface coloring effect poor.
Summary of the invention
In order to solve existing stain for wood technology, there is uneven to wood permeability, wood surface coloring effect is bad
The problems such as, the present invention provides a kind of aqueous wood stain, and modest viscosity, adhesive force are strong, and partial size is small, dispersion effect is good, more
It is readily permeable into wood internal.
Specifically, the present invention provides a kind of aqueous wood stain, main component includes pigment, dopamine, Nanowire
Dimension element and aqueous high molecular resin.
Preferably, in above-mentioned aqueous wood stain, pigment, dopamine, nano-cellulose and aqueous high molecular resin
Weight ratio is (40-60): (5-15): (5-10): (10-20), more preferably (45-50): (6-10): (6-8): (15-18).
The study found that aqueous wood stain made within the scope of aforementioned proportion, wherein dopamine can with it is aqueous
Macromolecule resin and lumber fibre react, and generate the suitable high adhesion force resin of viscosity；In addition using nano-cellulose as
Molecular resin and pigment composition can be dispersed in aqueous solvent by dispersing agent, and dispersion is more preferable, and colorant partial size is smaller, it is easier to
Penetrate into wood internal.
Further, the nano-cellulose is preferably tempo- oxidation nanometer cellulose, its more preferable size is in 100-
200nm。
Further, the aqueous high molecular resin is in polyacrylate, urethane acrylate, epoxy resin
It is one or more of.
Generally, this field convention pigment can be used.Further study show that when using inorganic pigment such as carbon black, titanium
When one of white powder, iron oxide yellow or iron oxide red, it is more suitable for inventive formulation system.
Further, aqueous wood stain of the present invention further includes the appropriate water as solvent.The dosage of water is usual
It is 10-15 times of pigment, dopamine, nano-cellulose and aqueous high molecular total resin weight.
In some preferred embodiments of the present invention, the aqueous wood stain includes: 40-60 parts of pigment, dopamine
5-15 parts, 5-10 parts of nano-cellulose, 10-20 parts of aqueous high molecular resin, 150-200 parts of water.It is highly preferred that the Waterborne wood
Material colorant includes: 45-50 parts of pigment, and 6-10 parts of dopamine, 6-8 parts of nano-cellulose, 15-18 parts of aqueous high molecular resin,
160-180 parts of water.
The present invention also provides the preparation methods of above-mentioned aqueous wood stain, comprising:
1) nano-cellulose is added to the water, sonic oscillation mixes well；
2) pigment is added according to the ratio, stirs evenly；
3) dopamine and aqueous high molecular resin are added according to the ratio, stirs evenly.
Above-mentioned steps 1) it is usually carried out under 65 DEG C or so, usual sonic oscillation 15-30 minutes.
Above-mentioned steps 2) generally use homogenizer, when revolution 2000r/min or more, stirs 30 minutes or so.
Above-mentioned steps 3) 1-2h or so is usually stirred under the conditions of revolution 200-300r/min.
Usually by aqueous wood stain of the present invention be configured to debita spissitudo aqueous solution (such as general concentration be 1-5%
Left and right), that is, it can be used.
The present invention also provides a kind of stain for wood methods, comprising:
Plasma pretreatment is carried out to timber before coloring；
It is coloured using above-mentioned aqueous wood stain.
The study found that carrying out plasma pretreatment to timber before coloring, wood surface contact angle can be improved, improve wood
Material surface hydrophilicity, this is conducive to water stain and sprawls and soak timber in wood surface；Wood surface also will appear micro-
Meter level is other irregular " out-of-flatness ", is conducive to the attachment of resin in this way, and colorant can be more preferable in the attachment of wood surface.
About timber plasma pretreatment, conventional method in that art can be used.For example, plasma gas is ejected into
Wood surface.In the specific embodiment of the invention, using torch-type DBD, working gas He, plasma is generated and is sprayed in rifle
It is mapped to wood surface, gas velocity 20-30L/min.Power supply is the exchange of tunable high-frequency (10-50kHz), high pressure (5-20kV)
Power supply.Handling the time is preferably 5-10min.
About stain for wood, conventional method in that art can be used.For example, plank is having a size of 25mm × 25mm × 5mm.It will
Colorant is made into the aqueous solution of 1-5%, and plank is impregnated and is wherein air-dried after 10-20 hours.
The invention also includes the timber of above-mentioned color method preparation.
Water stain with non-toxic and tasteless, permeability are excellent and by high praise.Compared with oil stain, water stain
It paints more longlasting, it can permeate timber, show the aesthetic feeling of timber itself, and play a protective role.Timber water stain is logical
Often using water-base resin as main film forming substance, such as polyvinyl acetate, ethylene-vinyl acetate copolymer, EVA lotion, water alcohol acid
Lotion, aqueous epoxy emulsion, aqueous polyurethane emulsion, aqueous acrylic emulsion etc., by colorant dye (face) material particle and
Constitution dye particles bonding is got up, and as erasing acts on, is spread evenly across surface of bottom material or is pressed in timber pore, makes its color
Change.In general, it is no more than 100nm usually as the priming paint of timber and seal coat resin partial size, it in this way can be to substrate
Depths is closed and is coloured, and stereovision is made it have.
Aqueous wood stain provided by the invention improves the caking property of aqueous high molecular resin and timber using dopamine,
Its dispersibility is improved using nano-cellulose.Stain for wood method provided by the invention improves timber by plasma pretreatment
Surface roughness is conducive to water stain sprawling and soaking in wood surface, while improving colorant in wood surface
Adhesive force.The present invention solves that existing stain for wood technology is uneven to wood permeability, wood surface coloring effect is bad
Problem.
Detailed description of the invention
Fig. 1 shows embodiment 1-4 and comparative example 1-4 stain for wood results.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..It is not specified in embodiment specific
Technology or conditions person, described technology or conditions according to the literature in the art, or carried out according to product description.It is used
Production firm person is not specified in reagent or instrument, is the conventional products that can be commercially available by regular distributor.
Tempo- oxidation nanometer cellulose (CNC) opens assist new material science and technology (Shanghai) Co., Ltd., size 100-200nm.
Polyacrylate, polyurethane resin, epoxy resin, Jiangsu Hai Tian Science and Technology Ltd., partial size 60-100nm.
Colouring timber used below is board using poplar board, having a size of 25mm × 25mm × 5mm.
Part used below is parts by weight.
Embodiment 1
A kind of aqueous wood stain, formula are as follows: 5 parts of Tempo- oxidation nanometer celluloses (CNC), 60 parts of carbon blacks, 12 parts
Dopamine, 20 parts of polyacrylate resins, 200 parts of water.
The present embodiment also provides the preparation method of the aqueous wood stain, comprising: presses formula for Tempo- oxidation nanometer
Cellulose (CNC) is added to the water sonic oscillation 15 minutes lower at 65 DEG C or so；Carbon black is added, in the homogeneous of revolution 2000r/min
It is stirred 30 minutes in machine, adds dopamine and polyacrylate resin, stirred 1 hour with the speed of 200r/min.
The present embodiment also provides a kind of stain for wood method, comprising: carries out plasma pretreatment to timber before coloring；It adopts
It is coloured with the present embodiment aqueous wood stain.Specifically, timber is pre-processed using plasma spray gun-type DBD,
Working gas He, plasma generate in rifle and are ejected into wood surface, gas velocity 20L/min.Power supply is high frequency
The AC power source of (50kHz), high pressure (10kV)；Handle time 5min.The present embodiment colorant is made into 1% aqueous solution, it will
Plank impregnates wherein 10 hours, air-dries.
Experimental result is shown in Fig. 1 a for stain for wood.
Comparative example 1
Woodstain, formula are as follows: 60 parts of carbon blacks, 20 parts of polyacrylate resins, 200 parts of water.
For preparation method in addition to not adding CNC and dopamine, remaining is same as Example 1.
This comparative example colorant is made into 1% aqueous solution, timber is coloured according to the same manner as in Example 1.
Experimental result is shown in Fig. 1 b for stain for wood.
Embodiment 2
A kind of aqueous wood stain, formula are as follows: 8 parts of Tempo- oxidation nanometer celluloses (CNC), 40 parts of titanium dioxides, 10
Part dopamine, 15 parts of polyurethane resins, 180 parts of water.
The present embodiment also provides the preparation method of the aqueous wood stain, comprising: presses formula for Tempo- oxidation nanometer
Cellulose (CNC) is added to the water sonic oscillation 30 minutes lower at 65 DEG C or so；Titanium dioxide is added, in the equal of revolution 2000r/min
It is stirred 30 minutes in matter machine, adds dopamine and polyurethane resin, stirred 2 hours with the speed of 200r/min.
The present embodiment also provides a kind of stain for wood method, and the difference with embodiment 1 is only that: by the present embodiment colorant
It is made into 4% aqueous solution, plank is impregnated wherein 20 hours, is air-dried.
Experimental result is shown in Fig. 1 c for stain for wood.
Comparative example 2
Woodstain, formula are as follows: 40 parts of titanium dioxides, 15 parts of polyurethane resins, 180 parts of water.
For preparation method in addition to not adding CNC and dopamine, remaining is same as Example 2.
This comparative example colorant is made into 4% aqueous solution, timber is coloured according to the same manner as in Example 2.
Experimental result is shown in Fig. 1 d for stain for wood.
Embodiment 3
A kind of aqueous wood stain, formula are as follows: 10 parts of Tempo- oxidation nanometer celluloses (CNC), 50 parts of iron oxide yellows, 6 parts
Dopamine, 13 parts of epoxy resin, 160 parts of water.
The present embodiment also provides the preparation method of the aqueous wood stain, comprising: presses formula for Tempo- oxidation nanometer
Cellulose (CNC) is added to the water sonic oscillation 30 minutes lower at 65 DEG C or so；Iron oxide yellow is added, in the homogeneous of revolution 2000r/min
It is stirred 30 minutes in machine, adds dopamine and epoxy resin, stirred 1.5 hours with the speed of 200r/min.
The present embodiment also provides a kind of stain for wood method, and the difference with embodiment 1 is only that: by the present embodiment colorant
It is made into 3% aqueous solution, plank is impregnated wherein 15 hours, is air-dried.
Experimental result is shown in Fig. 1 e for stain for wood.
Comparative example 3
Woodstain, formula are as follows: 50 parts of iron oxide yellows, 13 parts of epoxy resin, 160 parts of water.
For preparation method in addition to not adding CNC and dopamine, remaining is same as Example 3.
This comparative example colorant is made into 3% aqueous solution, timber is coloured according to the same manner as in Example 3.
Experimental result is shown in Fig. 1 f for stain for wood.
Embodiment 4
A kind of aqueous wood stain, formula are as follows: 7 parts of Tempo- oxidation nanometer celluloses (CNC), 50 parts of iron oxide reds, 12 parts
Dopamine, 8 parts of polyacrylate resins, 10 parts of polyurethane resins, 150 parts of water.
The present embodiment also provides the preparation method of the aqueous wood stain, comprising: presses formula for Tempo- oxidation nanometer
Cellulose (CNC) is added to the water sonic oscillation 15 minutes lower at 65 DEG C or so；Iron oxide red is added, in the homogeneous of revolution 2000r/min
It is stirred 30 minutes in machine, adds dopamine, polyacrylate resin, polyurethane resin, it is small with the speed stirring 2 of 200r/min
When.
The present embodiment also provides a kind of stain for wood method, and the difference with embodiment 1 is only that: by the present embodiment colorant
It is made into 2% aqueous solution, plank is impregnated wherein 18 hours, is air-dried.
Experimental result is shown in Fig. 1 g for stain for wood.
Comparative example 4
A kind of aqueous wood stain, formula are as follows: 50 parts of iron oxide reds, 8 parts of polyacrylate resins, 10 parts of polyurethane resins,
150 parts of water.
For preparation method in addition to not adding CNC and dopamine, remaining is same as Example 4.
This comparative example colorant is made into 2% aqueous solution, timber is coloured according to the same manner as in Example 4.
Experimental result is shown in Fig. 1 h for stain for wood.
As shown in Figure 1, compared with comparative example 1-4, the coloring effect uniformity of embodiment 1-4 is preferable, not without obvious color
Even phenomenon.
The detection of 1 colorant viscosity of experimental example
Using the colorant of rotational viscometer detection embodiment 1-4 and comparative example 1-4, every the results are shown in Table 1.
1 emulsion property measurement result of table
The result shows that the viscosity of embodiment 1-4 is between 100-200mPas, and the viscosity of comparative example 1-4 is in 300-
Between 400mPas.Embodiment 1-4 modest viscosity, adhesive force are strong, and partial size is small, dispersion effect is good, it is easier to penetrate into timber
Portion.
Experimental example 2 handles material and intuitively measures with value of chromatism
It is surveyed using chromatic value L, a, b value of the color difference meter to timber after embodiment 1-4 and comparative example 1-4 dyeing
Examination, each test specimen tests 8 points, and carries out value of chromatism Δ E and its standard deviation calculation with untreated board using poplar board, evaluates it
Coloring, the results are shown in Table 2.
The value of chromatism of the processing material of table 2
The result shows that the coloring effect uniformity of embodiment 1-4 improves compared with comparative example 1-4, and lacked without protrusion etc.
It trapping out existing, shows that its value of chromatism is larger, deviation is smaller, and it is whole less than 10, and the deviation of comparative example 1-4 is substantially in 10-
15。
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of aqueous wood stain, which is characterized in that main component includes pigment, dopamine, nano-cellulose and aqueous
Macromolecule resin.
2. aqueous wood stain according to claim 1, which is characterized in that pigment, dopamine, nano-cellulose and water
Property macromolecule resin weight ratio be (40-60): (5-15): (5-10): (10-20), more preferably (45-50): (6-10):
(6-8):(15-18)。
3. aqueous wood stain according to claim 1 or 2, which is characterized in that the nano-cellulose is tempo-
Oxidation nanometer cellulose, preferably its size is in 100-200nm.
4. aqueous wood stain according to claim 1-3, which is characterized in that the macromolecule resin is selected from
One of polyacrylate, urethane acrylate, epoxy resin or more.
5. aqueous wood stain according to claim 1-4, which is characterized in that the pigment is inorganic face
Material, preferably one of carbon black, titanium dioxide, iron oxide yellow or iron oxide red.
6. aqueous wood stain according to claim 1-5, which is characterized in that the aqueous wood stain
It further include the appropriate water as solvent；The dosage of water is preferably that pigment, dopamine, nano-cellulose and aqueous high molecular resin are total
10-15 times of weight.
7. aqueous wood stain according to claim 1-5, which is characterized in that the aqueous wood stain
It include: 40-60 parts of pigment, 5-15 parts of dopamine, 5-10 parts of nano-cellulose, 10-20 parts of aqueous high molecular resin, water 150-
200 parts；It preferably includes: 45-50 parts of pigment, 6-10 parts of dopamine, 6-8 parts of nano-cellulose, aqueous high molecular resin 15-18
Part, 160-180 parts of water.
8. the preparation method of any one of the claim 1-7 aqueous wood stain characterized by comprising
1) nano-cellulose is added to the water, sonic oscillation mixes well；
2) pigment is added according to the ratio, stirs evenly；
3) dopamine and aqueous high molecular resin are added according to the ratio, stirs evenly.
9. a kind of stain for wood method characterized by comprising
Plasma pretreatment is carried out to timber before coloring；
The aqueous wood prepared using any one of the claim 1-7 aqueous wood stain or claim 8 the method
Colorant is coloured；
Preferably, the plasma pretreatment method are as follows: plasma gas is ejected into wood surface, the gas velocity is
20-30L/min；The processing time is preferably 5-10min.
10. the timber of the preparation of color method described in claim 9.
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| CN111393931A (en) * | 2020-04-14 | 2020-07-10 | 合肥科天水性科技有限责任公司 | Water-based easy-to-polish coloring filling primer and preparation method and application thereof |
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| CN112646439A (en) * | 2020-12-18 | 2021-04-13 | 广东现代涂料科技有限公司 | Single-component matte doodle paint and preparation method thereof |
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| CN113461406A (en) * | 2021-07-21 | 2021-10-01 | 上海靓目新材料科技发展有限公司 | Argil soft stone plate and manufacturing process thereof |
| CN116404318A (en) * | 2023-06-06 | 2023-07-07 | 宁德新能源科技有限公司 | Battery cell |
| CN116404318B (en) * | 2023-06-06 | 2024-03-22 | 宁德新能源科技有限公司 | Battery cell |
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