CN100522522C - Process for coating a substrate - Google Patents
Process for coating a substrate Download PDFInfo
- Publication number
- CN100522522C CN100522522C CNB2005101305811A CN200510130581A CN100522522C CN 100522522 C CN100522522 C CN 100522522C CN B2005101305811 A CNB2005101305811 A CN B2005101305811A CN 200510130581 A CN200510130581 A CN 200510130581A CN 100522522 C CN100522522 C CN 100522522C
- Authority
- CN
- China
- Prior art keywords
- ground
- coating
- finish paint
- pressure
- radiation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/546—No clear coat specified each layer being cured, at least partially, separately
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
The invention relates to a process for coating of a wooden, wood-like and/or cellulose-containing substrate comprising the steps of, a) applying a press coating to the substrate, b) applying heat and pressure to the coated substrate to the cure the press coating and to obtain a substrate with a smooth coating film, with the pressure being such that the substrate is not substantially compressed, c) applying a top coat on the substrate after the curing of the press coating, and d) curing said on top coat. As a result of this process, the amount of unreacted double bonds in the coated substrate is at a low level.
Description
Technical field
The present invention relates to a kind ofly apply wooden, wooden shape and/or contain cellulosic ground such as solid wood, wooden plywood, impregnated paper or the method for reproducing wooden ground.
Background technology
Reproducing wooden ground is the ground that is made by wood particle, fiber, wood shavings or wood chip, as hardboard, medium density fibre board (MDF), oriented wood chipboard (also being known as slicer board), particieboard, flakeboard and flakeboard.This reproduce wooden ground usually by particle, fiber, wood shavings or wood chip in heating with add and depress manufacturing.Reproduce wooden ground generally by with binding agent particle, wood shavings, wood chip or fiber being handled, particle, wood shavings, wood chip or the fiber after then these being handled is arranged in the form of felt and produces under drying condition or wet condition.Then felt is compressed into fine and close ground by applying heat and pressure, is generally sheet-form.In this compression step, felt is compressed to less than 10% of its original depth, and promptly the thickness of ground has compressed more than 90%.In wet method, water pushes from felt in this compression step and removes; In dry method, each particle is forced together tightly.Binding agent bonds together particle, wood shavings, wood chip or fiber, strengthens structural strength and the globality and its resistance to water of reproducing wooden ground.Need, reproduce wooden ground and can be molded as required form or provide grain surface such as wood texture.The representative instance that reproduces wooden ground is hardboard, medium density fibre board (MDF) (MDF), high density fiberboard (HDF) and flakeboard.
For example, among the JP 57-113051 method for preparing fiberboard is disclosed.The document has been described wood chip has been boiled into fibrous material, adds adhesive resin then.Subsequently, mixture is hot pressed into fiberboard.Generally speaking, this mixture is significantly compressed in this hot pressing.After the compacting, this fiberboard is taken out from hot press.Next, with this fiberboard by spreader, flow coater or by spraying the aqueous solution that applies ester compounds.The shortcoming of this method is that the relatively large aqueous solution is understood in the infiltrated fiber plate.
Applying wooden, wooden shape and/or containing the problem that cellulosic ground runs into is that relatively large lacquer can suck in the ground.With low absorb ground or do not absorb ground compare, this will increase the lacquer consumption of these grounds.And the necessary relatively large lacquer of coated substrate causes long volume drying time and the relatively large solvent that must evaporate from coating.
When to wooden, wooden shape and/or when containing cellulosic ground and applying the coating composition of radiation-hardenable, also can run into other problem.This method for example is described in US 4,675, in 234.The document has been described the radiation-curable coating that applies thin layer to various grounds such as timber or paper.In order on these grounds, to obtain shallow layer, must apply relatively large coating.The shortcoming of this method is to can not get coating by radiation, can not solidify in radiative process because infiltrate that part of coating of ground.Uncured material can produce health, safety and environmental problem.
Now, the problem of primary concern is to need to reduce solvent in the coatings industry, and especially volatile hydrocarbon is to airborne discharging.The problem of the relevant radiation-hardenable material that does not thoroughly solidify is important too.
Summary of the invention
The present invention relates to a kind of method that has wooden, the wooden shape of coating of low lacquer consumption and/or contain cellulosic ground.In order to realize this purpose, the inventive method may further comprise the steps:
A) ground is applied pressure coating (press coating);
B) coated substrate is applied heat and pressure to solidify the coating of described pressure coating, obtain to have smooth ground of filming, wherein said pressure should make ground significantly do not compressed;
C) solidify the back in the coating of described pressure coating ground is applied finish paint; And
D) solidify described finish paint.
Detailed Description Of The Invention
For the application, the pressure that ground is not significantly compressed is 10% the pressure that the average thickness of ground is reduced be lower than its initial value.
Wherein the method significantly do not compressed of ground comprises that wherein the local compression of ground surpasses 10%, but the average thickness of ground reduces 10% any method that is lower than its initial value.This local compression can appear when in the step that ground is applied heat and pressure ground being applied special pattern.
In the methods of the invention, pressure coating is used to seal the surface of ground and reduces its absorption to lacquer.Generally speaking, pressure coating applies with the aqueous colloidal dispersions that also is referred to as to call polymer latex liquid.This pressure coating comprises polymer beads and the filler and/or the granules of pigments of ethylenically unsaturated monomer, the T of wherein said polymer
gBe 10-100 ℃.
The latax that is adapted on surface of bottom material or the limit obtaining the polymerization of smooth hard coating comprise based on emulsion solids be 10-60wt% ethylenically unsaturated monomer polymer beads and be pigment and/or the filler particles of 40-60wt% based on emulsion solids, the T of wherein said polymer
gBe 10-100 ℃.
Pressure coating is general not only to provide lubricious on the surface of ground and/or limit, and provide make ground with any other coating that is applied over this ground between the layer of bonding improvement.
Latax can be applied over ground by conventional equipment such as episodic curtain coater, nozzle, roll coater, flow coater or by extruding, and its limit to coated substrate is particularly useful.It is above as front side and dorsal part that this emulsion layer can be applied in a side of ground, perhaps along each limit of the ground that is the plane substantially or apply on the surface of profiling ground such as mechanograph or molded door-plate.
Optionally, in order to quicken the evaporation of water from latax, with ground before applying latax under 30-80 ℃, preferred 40-60 ℃ at 10 seconds to 5 minutes with interior preheating.
Emulsion layer is dried to hardened layer by reducing its moisture content.Generally speaking, this emulsion layer is dried to the 0-20wt% of its moisture content for this layer solid content.Regulate applicable baking temperature and drying time with the latax that is fit to used polymerization and the thickness of applied layer.Applicable baking temperature is generally room temperature to 120 ℃, is preferably 50-80 ℃.Drying time is for the higher baking temperature used and corresponding shortening, for the lower baking temperature used and corresponding prolongation.The drying equipment that is fit to is conventional drying equipment such as convection current air drying cabinet or the conveyer belt that passes the passage that is heated by IR.
Then, with drying layer at 0.1-3.5N/mm
2, preferred 0.14-2.0N/mm
2Following compacting a period of time of pressure.This coat can be heated in this suppression process.Regulate temperature and time with the adhesion of the thermal decomposition that prevents gained coating or ground or coating to platen.Applicable temperature is generally 20-300 ℃.
After pressing step or with it simultaneously, emulsion layer is solidified applicable hardening time under the applicable solidification temperature of the latax that is fit to used polymerization.Regulate hardening time and temperature to prevent the thermal decomposition of gained coating or ground.Applicable solidification temperature is generally 20-300 ℃, is preferably 170-235 ℃; Applicable hardening time be 120 minutes to 1-5 second, be preferably 30-1 minute.
Curing schedule preferably carries out under the applicable solidifying pressure of the latax that is fit to used polymerization simultaneously.Applicable solidifying pressure is 0.1-3.5N/mm
2, be preferably 0.14-2.0N/mm
2Applicable solidification temperature is 50-250 ℃, is preferably 150-200 ℃.Be 0.1 second to 5 minutes applicable hardening time.Conventional hot-press equipment is fit to batch operation as the moulding press with air pressure or hydraulic pressure heating plate, and heated belt or UV cure lamp that the stack of the conventional hot-press equipment such as the stack of a pair of heating, a series of heating, pair of parallel are settled can be used for continued operation by ground is pressed through them.Calendering at elevated temperatures is the compacting of pressure coating and solidifies the method for optimizing that carries out simultaneously.
Then, smooth the filming that obtains like this is used to apply next coating, for example finish paint on ground.In principle, for the coating composition that can be used as finish paint without limits, as long as the bonding of filming on this finish paint and the ground is good.The painted coating composition with not containing pigment all can be used for finish paint.Consider the quantity of solvent that will reduce release in finish paint drying and the solidification process, preferably use high solid solvent reducible coatings, water paint or hot-melt coating.Because the commercial scale of coated substrate of the present invention prepares and carries out preferred within a short period of time, so the curing of finish paint and drying time should be short as much as possible.The curing of finish paint and drying can be quickened by the heating ground, but because its thermo-responsive character, this is always not possible.Therefore, preferred use can be solidified in the rationally short time and needn't be heated the finish paint of the radiation-hardenable of ground too much.
Generally speaking, do not advise using the coating composition of radiation-hardenable to apply wooden, wooden shape and/or contain cellulosic ground, because this coating composition can infiltrate in the hole of ground, and because radiation does not arrive these zones, its result obtains uncured coating.For example when cutting or polishing ground, this can produce health, safety and environmental problem.These problems even after lacquer applies for many years, also can take place.Yet, in the methods of the invention, before the coating composition of radiation-hardenable applies, pressure coating is applied over ground.This pressure coating prevents that effectively the coating composition of radiation-hardenable from infiltrating in the ground.
In framework of the present invention, the coating composition of radiation-hardenable is to utilize the electromagnetic radiation of wavelength X≤500nm or the coating composition that electron beam irradiation solidifies.The example of the electromagnetic radiation of wavelength X≤500nm for example is the UV radiation.
In principle, in the finish paint that the resin of any radiation-hardenable or resin compound all can be used for using in the inventive method.The consumption of these resins is the 20-100wt% of composition.The consumption of preferred resin is 30-90wt%, more preferably 40-90wt%.
Find that the polyester-type acrylate is suitable in the finish compositions very much.The example of the commercially available polyester-type acrylate that is fit to is: Crodamer UVP-215, CrodamerUVP-220 (the two is all from Croda), Genomer 3302, Genomer 3316 (the two is all from Rahn), Laromer PE 44F (from BASF), Ebecryl 800, Ebecryl 810 (the two is all from UCB), Viaktin 5979, Viaktin VTE 5969 and Viaktin 6164 (100%) (all from Vianova).
Epocryl also can be used in the finish compositions.The example of commercially available Epocryl is: Crodamer UVE-107 (100%), Crodamer UVE-130 (the two is all from Croda), Genomer 2254, Genomer 2258, Genomer 2260, Genomer2263 (all from Rahn), CN 104 (from Cray Valley) and Ebecryl 3500 (from UCB).
The polyether-type acrylate also can be used in the finish compositions.The example of commercially available polyether-type acrylate is: Genomer 3456 (from Rahn), Laromer PO33F (from BASF), Viaktin 5968, Viaktin 5978 and Viaktin VTE6154 (all from Vianova).
The polyurethane-type acrylate also can be used in the finish compositions.The example of commercially available polyurethane-type acrylate is: CN 934, CN 976, CN 981 (all from Cray Valley), Ebecryl 210, Ebecryl 2000, Ebecryl 8800 (all from UCB), Genomer 4258, Genomer 4652 and Genomer 4675 (all from Rahn).
Other example that can be used for the radiation curable resins in the used finish compositions in the inventive method is the resin of cationic UV-curable, for example (Uvacure 1500 for cycloaliphatic epoxy resin, Uvacure 1501, Uvacure 1502, Uvacure 1530, Uvacure 1531, Uvacure 1532, Uvacure 1533, Uvacure 1534, Cyracure UVR-6100, Cyracure UVR-6105, Cyracure UVR-6110 and Cyracure UVR-6128, all from UCB Chemicals), SarCat K126 (from Sartomer), acrylate modified cycloaliphatic epoxides, caprolactone base resin (SR 495 (the caprolactone acrylate of=Sartomer), Tone 0201 (=caprolactone triol), Tone 0301, Tone 0305, Tone0310 (all caprolactone triol are all from Union Carbide), the carbamate divinyl ether of aliphatic series, the vinyl ethers oligomer of aromatics, BMI, diglycidyl ethers of bisphenol-A or neopentyl glycol, the hydroxy-functional acrylic monomer, hydroxy-functional epoxy resin, epoxy linseed oil, epoxidized polybutadiene, the bisphenol A epoxide resin of ethylene oxidic ester or part acrylic acid esterification.
In addition, the water-base resin of UV-curable also can be used in the finish compositions used in the inventive method, for example Zhi Zu dispersions of polyurethanes (Lux 101 VP of Alberdingk Boley), especially (methyl) acryloyl functionalized polyurethane dispersion.When comprising alkylene oxide group, (methyl) acryloyl functionalized polyurethane resin obtains extraordinary result.
Compound of the radiation-hardenable that other be fit to use for example be epoxidized oil, (methyl) acroleic acid esterification of polyether polyols, (methyl) acroleic acid esterification of the compound that contains vinyl ethers, unsaturated polyester resin, acroleic acid esterification hyper-branched polyester, siliceous acrylate, maleimide functionalized compounds, unsaturated acyl imide resin, be fit to compound or its mixture of photoinduction cationic curing.
For obtain finish paint be fit to apply viscosity, the monomer that can add the UV-curable of knowing is as viscosity reductant and reactive oligomers.The example of these reactive oligomers is tripropylene glycol diacrylate (TPGDA), hexanediyl ester (HDDA) and methacrylic acid 2-hydroxyethyl ester (HEMA).
In addition, said composition also can comprise the mixture of light trigger or light trigger.The example that can be used for the light trigger that is fit in the radiation-hardenable composition of the inventive method is benzoin, benzoin ether, benzil ketals, α; α-dialkoxy acetophenone, alpha-hydroxyalkyl benzophenone, alpha-aminoalkyl benzophenone, acylphosphine oxide, benzophenone, thioxanthones, 1,2-diketone and composition thereof.But also can use the bimolecular type light trigger or the maleimide functionalized compounds of copolymerization.Coinitiator also can be present in the coating composition of radiation-hardenable as the coinitiator based on amine.Equally also can use a day photocuring light trigger.
The example of the commercially available light trigger that is fit to is: Esacure KIP 100F and Esacure KIP150F (the two is all from Lamberti); Genocure BDK and Velsicure BTF (the two is all from Rahn); Speedcure EDB, Speedcure ITX, Speedcure BKL and SpeedcureDETX (all from Lambson); Cyracure UVI-6990, Cyracure VUI-6974, Cyracure UVI-6976 and Cyracure UVI-6992 (all from Union Carbide); And CGI-901, Darocur 184, Darocur 500, Darocur 1000 and Darocur 1173 (all from Ciba Chemicals).
Yet existing of light trigger is dispensable.Generally speaking, when adopting electron beam irradiation to come hardening composition, just there is no need to add light trigger.When adopting the UV radiation, generally to add light trigger.
Although the total amount of light trigger is not crucial in the composition,, should make coating be enough to obtain acceptable curing when coating during by radiation.Yet this consumption should be greatly to making it influence the performance of hardening composition in unfavorable mode.Generally speaking, when the electromagnetic radiation of adopting wavelength X≤500nm was coating material solidified, composition should comprise the light trigger of 0.1-10wt%, presses the total weight of composition.
Composition also can contain one or more fillers or additive.Filler can be the known any fillers of those skilled in the art, for example barium sulfate, calcium sulfate, calcium carbonate, silica or silicate (as talcum, feldspar and potter's clay).Also can add additive, for example stabilizing agent, antioxidant, levelling agent, antisettling agent, delustering agent, rheology modifier, surfactant, amine synergist, wax or bind enhancer.Generally speaking, coating composition of the present invention comprises filler and/or the additive of 0-50wt%, the total weight of pressing coating composition.
Finish compositions used in the inventive method also can contain one or more pigment.In radiation curable compositions of the present invention, can use the known pigment of those skilled in the art.Yet, it should be noted that pigment should not demonstrate too high absorption to the radiation that is used for hardening composition.Generally speaking, composition of the present invention comprises the pigment of 0-40wt%, presses the total weight of coating composition.
Finish paint can be applied over ground by conventional equipment such as episodic curtain coater, nozzle, roll coater or flow coater.
Optionally, before applying finish paint, one or more layers other coating-so-called inter coat is applied on smooth the filming on the surface of bottom material.Do like this and just for example obtain the better bonding of finish paint or the finish paint that acquisition has particular characteristic.
In principle, for the coating composition that can be used for coating without limits, as long as the bonding of filming on this coating and the ground is good.The painted coating composition with not containing pigment all can use.Consider the quantity of solvent that will reduce release in coating composition drying and the solidification process, preferably use high solid solvent based coating composition, water-based paint compositions or hot-melt coating composition.Because the commercial scale of coated substrate of the present invention prepares and carries out preferred within a short period of time, so the curing of coating composition and drying time should be short as much as possible.The curing of coating composition and drying can be quickened by the heating ground, but because its thermo-responsive character, this is always not possible.Therefore, preferably use the coating composition of radiation-hardenable.
For additional inter coat, though having same composition, additional inter coat and finish paint there is no need, can use the coating composition identical in principle with the top coat layer type.
For obtain the intermediate layer be fit to apply viscosity, the monomer that can add the UV-curable of knowing is as viscosity reductant and reactive oligomers.The example of these reactive oligomers is tripropylene glycol diacrylate (TPGDA), hexanediyl ester (HDDA) and methacrylic acid 2-hydroxyethyl ester (HEMA).
Inter coat can be applied over ground by conventional equipment such as episodic curtain coater, nozzle, roll coater or flow coater.
Optionally, before applying finish paint, ground is imposed stamp (printing).Do the ground that can obtain to have specific surface structure, color or texture like this.
For with industry law to wooden, wooden shape and/or contain the coating of cellulosic ground, the preferred method that wherein all apply and curing schedule all carries out on single production line.In this method, ground is placed on the conveyer belt that moves with continuous speed.Sequentially ground is applied upward pressure coating then, heating and compacting are with the dry and described pressure coating of curing, optional being coated with is covered with additional coating, heating or processing are optionally worked as anterior layer to solidify in another way, the optional stamp that provides, the coating finish paint also heats in another way or handles to solidify described finish paint.
Wherein by at first applying pressure coating, apply other coating then and with wooden, wooden shape and/or contain the inventive method that cellulosic ground applies and compare with the method for wherein not using this pressure coating and have the following advantages:
The required total lacquer amount of ground that-acquisition has identical performance and outward appearance reduces;
The required total solvent amount of ground that-acquisition has identical performance and outward appearance reduces;
The required gross energy of ground that-acquisition has identical performance and outward appearance reduces;
-especially for the ground of finish paint that is coated with UV-curable or inter coat, the amount of unreacted monomer reduces.For example when cutting or polishing ground, these monomers can produce health, safety and environmental problem.Even after applying for many years, this lacquer also these problems can take place.
-ground improved heat resistance.
The invention still further relates to a kind of be coated with pressure coating and at least one deck radiation curable coating wooden, wooden shape and/or contain cellulosic ground, wherein after this radiation curable coating solidifies, amount by the two keys of unreacted in the ground of IR chromatography determination is lower than 15% of two key total amounts of existing in the uncured coating composition, preferably is lower than 10%.The two key amounts of this low unreacted may be since by working pressure coating to due to effective sealing of the porous surface of ground.Because this sealing, radiation curable coating reduces to the infiltration of ground.
Term " IR chromatography " should be thought in the application's context and refers to chromatography and infra-red sepectrometry subsequently, for example gas chromatography and infra-red sepectrometry subsequently.If the employing liquid chromatography then it should be noted, the IR spectrum of the phase that flows is not interfered the IR spectrum of sample.
The amount of extractable matter can be by taking 5cm from surface of bottom material
2The sample of * 1-2mm is measured, and sample dichloromethane extraction, the carrene that contains extractable matter are united by GC/FID (gas chromatography/flame ionization detection method) and GC/MS (gas chromatography/mass spectrography) and analyzed.
The present invention will describe with reference to the following example.These embodiment will set forth the present invention, and should not think by any way the restriction to its scope.
Embodiment
Embodiment 1A
Medium density fibre board (MDF) (MDF) ground is placed on the conveyer belt that the speed with 15m/min moves, and will comprise following component become the pressure coating emulsion (pbw represents weight portion) of white:
26.7pbw water;
20.7pbw T
gIt is 34 ℃ acrylic acid series polymeric compounds;
16.8pbw pigment;
31.5pbw filler mixture; And
4.3pbw additive agent mixture
With 15-20g/m
2Amount be applied on this MDF ground.By this MDF ground is made this pressure coating drying by baking oven, and by being that 150-200 ℃ and pressure are about 1N/mm with this ground by temperature
2A pair of stack and with the compacting of this pressure coating and solidify.
On such filming of forming, utilize episodic curtain coater with 100g/m
2Amount applying the solvent borne finish paint that becomes white (the Proff355 NCS S-0502Y that can obtain from Akzo Nobel Wood Coatings AB Sweden be diluted to the solid content of 50wt%).By by second baking oven this finish paint being solidified ground.
Whole technology is carried out on single production line, need not ground is taken off from conveyer belt.
Embodiment 1B (Comparative Examples)
In contrast, the MDF ground that adopts the preparation of identical condition to apply, but working pressure coating not.In the first step, apply solvent borne fluid sealant coating (the Proff Surf 150 that can obtain from Akzo Nobel Wood CoatingsAB Sweden); In second step, with embodiment 1A become the solvent borne finish paint of white with 100g/m
2Amount apply.In order to obtain as the ground with identical performance and outward appearance among the embodiment 1A, fluid sealant coating must be with 100g/m
2Amount apply.
With embodiment 1A contrast, in this Comparative Examples, must use 100% solvent to have the MDF ground of the coating of identical performance and outward appearance with acquisition more.In addition, because the quantity of solvent that must evaporate is bigger, the energy consumption of this whole technology is higher in this Comparative Examples.
Embodiment 2A
Medium density fibre board (MDF) (MDF) ground is placed on the conveyer belt that the speed with 15m/min moves, and with embodiment 1A become the pressure coating of white with 15-20g/m
2Amount be applied on this MDF ground.By this MDF ground is made this pressure coating drying by baking oven, and by being that 150-200 ℃ and pressure are about 1N/mm with this ground by temperature
2A pair of stack and with the compacting of this pressure coating and solidify.
On such filming of forming, utilize episodic curtain coater with 100g/m
2Amount applying the finish paint that becomes white (No. 5, the IC 102Ikeawhite that can obtain from Akzo Nobel Wood Coatings AB Sweden is diluted to the solid content of 35wt%).By by second baking oven this finish paint being solidified ground.
Whole technology is carried out on single production line, need not ground is taken off from conveyer belt.
Embodiment 2B (Comparative Examples)
In contrast, the MDF ground that adopts the preparation of identical condition to apply, but working pressure coating not.In the first step, apply solvent borne fluid sealant coating (the Proff Surf 150 that can obtain from Akzo Nobel Wood CoatingsAB Sweden); In second step, with embodiment 2A become the finish paint of white with 100g/m
2Amount apply.In order to obtain as the ground with identical performance and outward appearance among the embodiment 2A, fluid sealant coating must be with 100g/m
2Amount apply.
With embodiment 2A contrast, in this Comparative Examples, must use 100% solvent to have the MDF ground of the coating of identical performance and outward appearance with acquisition more.In addition, because the quantity of solvent that must evaporate is bigger, the energy consumption of this whole technology is higher in this Comparative Examples.
Embodiment 3A
Medium density fibre board (MDF) (MDF) ground is placed on the conveyer belt that the speed with 15m/min moves, and with embodiment 1A become the pressure coating of white with 15-20g/m
2Amount be applied on this MDF ground.By this MDF ground is made this pressure coating drying by baking oven, and by being that 150-200 ℃ and pressure are about 1N/mm with this ground by temperature
2A pair of stack and with the compacting of this pressure coating and solidify.
On such filming of forming, utilize episodic curtain coater with 100g/m
2Amount applying the aqueous finish paint that the becomes white (Aqua that can obtain from Akzo Nobel Wood Coatings AB Sweden
Line).By by second baking oven this finish paint being solidified ground.
Whole technology is carried out on single production line, need not ground is taken off from conveyer belt.
Embodiment 3B (Comparative Examples)
In contrast, the MDF ground that adopts the preparation of identical condition to apply, but working pressure coating not.In the first step, applying aqueous priming paint (can be from the Aqua of Akzo Nobel Wood Coatings ABSweden acquisition
Line); In second step, with identical the water paint that becomes white as finish paint with 100g/m
2Amount apply.In order to obtain as the ground with identical performance and outward appearance among the embodiment 3A, this priming paint must be with 100g/m
2Amount apply.
With embodiment 3A contrast, because the water yield that must evaporate is bigger, the energy consumption of this whole technology is higher in this Comparative Examples.
Embodiment 4A
Medium density fibre board (MDF) (MDF) ground is placed on the conveyer belt that the speed with 15m/min moves, and with embodiment 1A become the pressure coating of white with 15-20g/m
2Amount be applied on this MDF ground.By this MDF ground is made this pressure coating drying by baking oven, and by being that 150-200 ℃ and pressure are about 1N/mm with this ground by temperature
2A pair of stack and with the compacting of this pressure coating and solidify.
On such filming of forming, apply following coating:
-utilize roll coater with 8g/m
2Amount apply UV fluid sealant (the IS 401 UV fluid sealants that can obtain from Akzo Nobel WoodCoatings AB Sweden);
-utilize roll coater with 8g/m
2Amount applying the UV base coat that becomes white (the UV base coat Br.Hvid that can obtain from Akzo NobelWood Coatings AB Sweden);
-utilize roll coater with 8g/m
2Amount applying the UV base coat that becomes white (the UV base coat Br.Hvid that can obtain from Akzo NobelWood Coatings AB Sweden),
-utilize Optiroller with 23g/m
2Amount applying the finish paint that becomes white (No. 5, the UV finish paint Ikea that can obtain from Akzo NobelWood Coatings AB Sweden).
After applying, drying is also solidified each coating, applies down one deck then.By with ground under the UV lamp by each coating is solidified.Before applying the ground floor base coat, ground is polished.
Whole technology is carried out on single production line, need not ground is taken off from conveyer belt.
Embodiment 4B (Comparative Examples)
In contrast, the MDF ground that adopts the preparation of identical condition to apply, but working pressure coating not.In the first step, with 20g/m
2Amount apply UV putty (the IF 401 UV light fillers that can obtain from Akzo Nobel WoodCoatings AB Sweden) and solidify.
On the putty that solidifies, apply following coating:
-utilize roll coater with 8g/m
2Amount apply UV fluid sealant (the IS 401 UV fluid sealants that can obtain from Akzo Nobel WoodCoatings AB Sweden);
-utilize roll coater with 8g/m
2Amount applying the UV base coat that becomes white (the UV base coat Br.Hvid that can obtain from Akzo NobelWood Coatings AB Sweden);
-utilize roll coater with 8g/m
2Amount applying the UV base coat that becomes white (the UV base coat Br.Hvid that can obtain from Akzo NobelWood Coatings AB Sweden);
-utilize roll coater with 8g/m
2Amount applying the UV base coat that becomes white (the UV base coat Br.Hvid that can obtain from Akzo NobelWood Coatings AB Sweden);
-utilize Optiroller with 23g/m
2Amount applying the finish paint that becomes white (the UV finish paint that can obtain from Akzo NobelWood Coatings AB Sweden Ikea5 number).
After applying, drying is also solidified each coating, applies down one deck then.By with ground under the UV lamp by coating is solidified.
Whole technology is carried out on single production line, need not ground is taken off from conveyer belt.
With embodiment 4A contrast, in this Comparative Examples, the ground that must use more lacquer to have identical performance and outward appearance with acquisition, the result causes higher overall cost price.In addition, in the coated substrate of embodiment 4B, two keys of about 20% do not transform in the coating composition, and in the coated substrate of embodiment 4A, only not conversion of two keys of 3% in the coating composition.The conversion ratio of two keys is by the IR chromatography determination.
Bright this material of the scale of unconverted pair of key contains uncured monomeric substance in the coated substrate.
Embodiment 5A
Medium density fibre board (MDF) (MDF) ground is placed on the conveyer belt that the speed with 15m/min moves, and with embodiment 1A become the pressure coating of white with 15-20g/m
2Amount be applied on this MDF ground.By this MDF ground is made this pressure coating drying by baking oven, and by being that 150-200 ℃ and pressure are about 1N/mm with this ground by temperature
2A pair of stack and with the compacting of this pressure coating and solidify.
On such filming of forming, utilize roll coater with 25g/m
2Amount applying the aqueous priming paint that becomes white (the IP610 aqueous priming paint 2 that can obtain from Akzo Nobel Wood Coatings AB Sweden).In this priming paint drying with after solidifying, utilize Optiroller with 5g/m
2Amount apply the finish paint (the UV finish paint that can obtain from Akzo Nobel Wood Coatings AB Sweden Ikea5 number) of UV-curable.By with ground under the UV lamp by this finish paint is solidified.
Whole technology is carried out on single production line, need not ground is taken off from conveyer belt.
Embodiment 5B (Comparative Examples)
In contrast, the MDF ground that adopts the preparation of identical condition to apply, but working pressure coating not.In the first step, apply aqueous priming paint (IP 610 aqueous priming paints 2 that can obtain from Akzo Nobel Wood Coatings ABSweden); In second step, will become the finish paint (the UV finish paint that can obtain from Akzo Nobel Wood Coatings AB Sweden lkea5 number) of the UV-curable of white with 5g/m
2Amount apply.In order to obtain as the ground with identical performance and outward appearance among the embodiment 5A, this priming paint must be with 35g/m
2Amount apply 3 times.
With embodiment 5A contrast, because the water yield that must evaporate is bigger, the energy consumption of this whole technology is higher in this Comparative Examples.In addition, the lacquer consumption in the contrast technology is also higher.
Embodiment 6A
Medium density fibre board (MDF) (MDF) ground is placed on the conveyer belt that the speed with 15m/min moves, and with embodiment 1A become the pressure coating of white with 15-20g/m
2Amount be applied on this MDF ground.By this MDF ground is made this pressure coating drying by baking oven, and by being that 150-200 ℃ and pressure are about 1N/mm with this ground by temperature
2A pair of stack and with the compacting of this pressure coating and solidify.
On such filming of forming, with 5-15g/m
2Amount apply the putty (the IF 401 UV light fillers that can obtain from Akzo Nobel Wood Coatings AB Sweden) of UV-curable.By with ground under the UV lamp by this putty is solidified.On the putty that solidifies, with 6-8g/m
2Amount apply the fluid sealant coating (the IS 483 W-W UV fluid sealants that can obtain from Akzo Nobel Wood Coatings ABSweden) of UV-curable.By with ground under the UV lamp by making the sealing adhesive curing.On the fluid sealant coating of solidifying, with 5g/m
2Amount apply the finish paint (No. 5, the UV finish paint lkea that can obtain from Akzo Nobel Wood Coatings AB Sweden) of UV-curable.By with ground under the UV lamp by this finish paint is solidified.
Whole technology is carried out on single production line, need not ground is taken off from conveyer belt.
Embodiment 6B (Comparative Examples)
In contrast, the MDF ground that adopts the preparation of identical condition to apply, but working pressure coating not.In order to obtain as the ground among the embodiment 6A with identical performance and outward appearance, must be with 15-40g/m
2Amount apply the putty of the UV-curable of embodiment 6A.
With embodiment 6A contrast, in this Comparative Examples, the ground that must use more lacquer to have identical performance and outward appearance with acquisition, the result causes higher overall cost price.In addition, in the coated substrate of embodiment 6B, two keys of about 25% do not transform in the coating composition, and in the coated substrate of embodiment 6A, only not conversion of two keys of 7% in the coating composition.The conversion ratio of two keys is by the IR chromatography determination.Bright this material of the scale of unconverted pair of key contains uncured monomeric substance in the coated substrate.
Claims (6)
1. the method for coating adhesive plywood or solid wood ground may further comprise the steps:
A) ground is applied pressure coating with aqueous colloidal dispersions;
B) coated substrate is applied heat and pressure to solidify the coating of described pressure coating, obtain to have smooth ground of filming, wherein said pressure should make ground significantly do not compressed;
C) solidify the back in the coating of described pressure coating ground is applied finish paint; And
D) solidify described finish paint,
The wherein said pressure that ground is not significantly compressed is 10% the pressure that the average thickness of ground is reduced be lower than its initial value.
2. according to the method for claim 1, it is characterized in that in the additional step before applying finish paint, apply and cured primer.
3. according to the method for claim 1 or 2, it is characterized in that all processing steps all carry out on single production line.
4. according to the method for claim 1 or 2, it is characterized in that described finish paint is that the finish paint of radiation-hardenable and the finish paint of this radiation-hardenable adopt the UV radiation to solidify.
5. according to the method for claim 1 or 2, it is characterized in that before applying finish paint, imposing stamp on the ground and finish paint is applied on the described stamp.
6. according to the method for claim 1 or 2, it is characterized in that described pressure coating is polymer beads and the filler of 40-60wt% and/or the aqueous colloidal dispersions of pigment that comprises ethylenically unsaturated monomer, wherein wt percentage is by the total weight of emulsion solids.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00204622 | 2000-12-19 | ||
| EP00204622.5 | 2000-12-19 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01820881.9A Division CN1240906C (en) | 2000-12-19 | 2001-12-10 | Process for coating substrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1788953A CN1788953A (en) | 2006-06-21 |
| CN100522522C true CN100522522C (en) | 2009-08-05 |
Family
ID=8172459
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01820881.9A Expired - Lifetime CN1240906C (en) | 2000-12-19 | 2001-12-10 | Process for coating substrate |
| CNB2005101305811A Expired - Lifetime CN100522522C (en) | 2000-12-19 | 2001-12-10 | Process for coating a substrate |
| CNB2005101305826A Expired - Lifetime CN100361795C (en) | 2000-12-19 | 2001-12-10 | Process for coating a substrate |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01820881.9A Expired - Lifetime CN1240906C (en) | 2000-12-19 | 2001-12-10 | Process for coating substrate |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101305826A Expired - Lifetime CN100361795C (en) | 2000-12-19 | 2001-12-10 | Process for coating a substrate |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1343939B2 (en) |
| CN (3) | CN1240906C (en) |
| AT (1) | ATE371767T1 (en) |
| AU (1) | AU2002240836A1 (en) |
| CZ (1) | CZ304627B6 (en) |
| DE (1) | DE60130251T3 (en) |
| PL (1) | PL193255B1 (en) |
| PT (1) | PT1343939E (en) |
| WO (1) | WO2002050374A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002050374A1 (en) * | 2000-12-19 | 2002-06-27 | Akzo Nobel N.V. | Process for coating a substrate |
| DE102005002059A1 (en) * | 2005-01-14 | 2006-07-27 | Kronotec Ag | Wood material with dissipative surface |
| CA2568440C (en) * | 2004-05-28 | 2015-05-05 | Kronotec Ag | Panel made of a wooden material with a surface coating |
| DE102009002048A1 (en) | 2009-03-31 | 2010-10-07 | Klebchemie M.G. Becker Gmbh & Co. Kg | Adhesion promoter for coatings and prints |
| CN102285193B (en) * | 2011-05-18 | 2014-01-01 | 北京兴有丰科科技发展有限公司 | Water-base cement dry lamination method |
| CN103981717B (en) * | 2014-05-27 | 2016-01-20 | 广东溢达纺织有限公司 | Fag end of tool coating and preparation method thereof |
| CN110582406B (en) * | 2017-04-28 | 2021-06-15 | 阿塔卡化工(施密德吕纳股份公司) | Apparatus and method for producing textured coatings |
| CN107096701A (en) * | 2017-04-29 | 2017-08-29 | 安徽阜南县向发工艺品有限公司 | Strengthen the method for the wooden articles for use surface acid resistance corrosion of furniture |
| FI128812B (en) * | 2018-01-23 | 2020-12-31 | Teknologian Tutkimuskeskus Vtt Oy | Coated wood veneer and method for treating wood veneer |
| CN111570232A (en) * | 2020-05-26 | 2020-08-25 | 梦天家居集团股份有限公司 | Roller coating process for UV primer and water-based finish paint |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839442B1 (en) * | 1969-07-11 | 1973-11-24 | ||
| US4675234A (en) * | 1980-10-01 | 1987-06-23 | Tarkett Ab | Radiation cured coating and process therefor |
| JPS57113051A (en) * | 1980-12-31 | 1982-07-14 | Noda Plywood Mfg Co Ltd | Manufacture of fiber board |
| JPS59199775A (en) † | 1983-04-28 | 1984-11-12 | Mitsui Toatsu Chem Inc | Composition for aqueous dispersion coating material |
| US4587141A (en) * | 1983-12-15 | 1986-05-06 | U.S. Plywood Corporation | Laminated panel and process |
| DE3505750A1 (en) * | 1985-02-20 | 1986-08-21 | Basf Ag, 6700 Ludwigshafen | CAMPHER DITHIOLES COMPLEXES AND THEIR USE |
| JP2810516B2 (en) * | 1990-08-28 | 1998-10-15 | 松下電工株式会社 | How to paint wood |
| JPH0623951A (en) * | 1992-07-10 | 1994-02-01 | Toyo Polymer Kk | Method of treating surface of paper capable of being recycled |
| JPH0860070A (en) * | 1994-08-23 | 1996-03-05 | Nippon Paint Co Ltd | Curable resin composition, coating composition, coating method, and coated item |
| WO1998029489A1 (en) * | 1996-12-31 | 1998-07-09 | Wayne Pigment Corp. | Aqueous paint additive for staining inhibition and procedure |
| WO2002050374A1 (en) * | 2000-12-19 | 2002-06-27 | Akzo Nobel N.V. | Process for coating a substrate |
-
2001
- 2001-12-10 WO PCT/EP2001/014778 patent/WO2002050374A1/en active IP Right Grant
- 2001-12-10 PT PT01988026T patent/PT1343939E/en unknown
- 2001-12-10 CN CN01820881.9A patent/CN1240906C/en not_active Expired - Lifetime
- 2001-12-10 DE DE60130251T patent/DE60130251T3/en not_active Expired - Lifetime
- 2001-12-10 CN CNB2005101305811A patent/CN100522522C/en not_active Expired - Lifetime
- 2001-12-10 PL PL362434A patent/PL193255B1/en unknown
- 2001-12-10 AU AU2002240836A patent/AU2002240836A1/en not_active Abandoned
- 2001-12-10 CZ CZ2003-1720A patent/CZ304627B6/en not_active IP Right Cessation
- 2001-12-10 AT AT01988026T patent/ATE371767T1/en not_active IP Right Cessation
- 2001-12-10 EP EP01988026.9A patent/EP1343939B2/en not_active Expired - Lifetime
- 2001-12-10 CN CNB2005101305826A patent/CN100361795C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CZ20031720A3 (en) | 2003-11-12 |
| CN1240906C (en) | 2006-02-08 |
| EP1343939B1 (en) | 2007-08-29 |
| AU2002240836A1 (en) | 2002-07-01 |
| CN1788954A (en) | 2006-06-21 |
| CN1481465A (en) | 2004-03-10 |
| PL362434A1 (en) | 2004-11-02 |
| PL193255B1 (en) | 2007-01-31 |
| DE60130251T3 (en) | 2013-11-07 |
| CZ304627B6 (en) | 2014-08-13 |
| ATE371767T1 (en) | 2007-09-15 |
| CN100361795C (en) | 2008-01-16 |
| CN1788953A (en) | 2006-06-21 |
| DE60130251T2 (en) | 2008-05-15 |
| EP1343939B2 (en) | 2013-07-03 |
| EP1343939A1 (en) | 2003-09-17 |
| WO2002050374A1 (en) | 2002-06-27 |
| PT1343939E (en) | 2007-12-06 |
| DE60130251D1 (en) | 2007-10-11 |
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Granted publication date: 20090805 |