CN101549520B - Method for surface directly coating beaverboard of middle density - Google Patents
Method for surface directly coating beaverboard of middle density Download PDFInfo
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- CN101549520B CN101549520B CN2009103024280A CN200910302428A CN101549520B CN 101549520 B CN101549520 B CN 101549520B CN 2009103024280 A CN2009103024280 A CN 2009103024280A CN 200910302428 A CN200910302428 A CN 200910302428A CN 101549520 B CN101549520 B CN 101549520B
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Abstract
The invention relates to the field of architectural decoration material and its post-contour machining technology, concretely a method for surface directly coating beaverboard of middle density. The invention is indicated constructing continuous coating lines of priming lacquer, emulation grain and top-coat, taking the beaverboard of middle density as basic materials on the continuous coating lines, and continuously coating the basic materials to form into coating of the priming lacquer, emulation grain and top-coat. With employing this method, the aforementioned coatings can dry and form filmin 0.5-2 seconds, the coating speed is quickly, and the quality is excellent without environment pollution.
Description
Technical field
The present invention relates to building and ornament materials and aftershaping processing technique field thereof, specifically a kind of method of medium density fibre board (MDF) being carried out the direct covering with paint in surface.
Background technology
Indoor utensils products such as the cabinet that prior art is made, table, bed, timber, mute mouth, exterior window trim, entry, floor are base material with medium density fibre board (MDF) (being called for short MDF) mostly.Following several method now commonly used carries out top finishing, decoration to MDF:
1, is the product surface coating material with bicomponent polyurethane paint (PU lacquer), adopts spraying or brush technology to being that the product surface of base material is covered with paint, lacquer, colour wash, etc. (mainly being to adopt spraying coating process) with MDF in Product industrialization, large-scale production process.There is following defective in it:
1) drying varniss speed is slow, and product surface quality stability control difficulty is higher in the industrialization process.Brush, be sprayed on the product surface the PU lacquer coat only under the dustless baking room condition of 35 ℃-40 ℃ of constant temperature slowly dry 48 hours ability tentatively finish the paint film film forming procedure; the paint film bone dry needs 72 hours; climate temperature, humidity change if meet at that time; also can influence product surface coating film forming speed and quality of forming film; cause the disposable qualification rate of product surface coating often to have only 70%-85%; in Product industrialization, large-scale production process, lack synchronizing capacity with other manufacturing procedure of product.
2) health risk, contaminated environment.Contain solid pollutants such as VOC (VOC) such as TDI (toluene di-isocyanate(TDI) or aliphatic polyisocyante), benzene, toluene and dimethylbenzene and heavy metal in the PU lacquer.VOC and pollutant endanger the healthy of japanning workman and consumer in PU painting brush, spraying process.In addition, the method that the PU lacquer is covered with paint, lacquer, colour wash, etc. main employing in the technology is the spraying application method, this construction method requires the water curtain " wall " and the air negative pressure system of essential configuration clean water quality in the spray room, only cooperate under the suction function that produces, at the bottom of the PU, finish paint can be sprayed on the product surface in high quality at the extraordinary water curtain of flowability and air compressor.The PU lacquer " splash " that produces in the spraying process, sediment intend being inhaled in the lump or falling into the water system of spraying in the room, clean water constantly is provided in water system, constantly the result of externally discharged waste water has constituted pollution (comprising the pollution to water resource) to environment on the one hand again, has increased the weight of water purification resource load on the other hand again.Also have the steam that the constant temperature source in the dustless baking room mainly provides from coal-burning boiler, the SO that discharged from coal-fired boiler goes out
2, NO
X, pollutants such as dust are also at the harm natural environment.
3) poor performance such as corrosion-resistant, the anti-xanthochromia of product surface coating, anti-ultraviolet radiation line, wear-resisting anti scuffing particularly wherein generally also exist easy loss of gloss, efflorescence, yellowing problem based on the PU of pure white lacquer paint film at present, influence product service life.
4) do not possess the heterochromatic coating scale of isoplanar concave surface and cover with paint, lacquer, colour wash, etc. ability, be unfavorable for improving value-added content of product and selling point level.Because PU lacquer mainly is to rely on spraying coating process to finish being that the product surface of base material is covered with paint, lacquer, colour wash, etc. with MDF, therefore, can only be in scale covering with paint process to the plane on the product surface, the PU lacquer of a kind of color of isoplanar concave surface spraying (or brushing), if requiring to adopt the PU lacquer of different colours covers with paint, lacquer, colour wash, etc. the plane concave surface of product, decorate, then need wait to cover with paint, lacquer, colour wash, etc. after the coloured PU lacquer coat drying on the product plane concave surface, adopt artificial Continuous pressing device for stereo-pattern again, overcovers such as paper cover in after the above-mentioned colored coating, could spray the PU lacquer of (or brushing) another color on the plane of product.Obviously, the covering with paint technology of finishing heterochromatic coating on the concave surface of isoplanar is quite complicated, and also tending to because former thereby mutual interference such as immersion mutually of collapsing between limit, the heterochromatic coating generation " bluring " unclear phenomenon on the product surface between heterochromatic coated thread (phase) boundary.
2, hot pressing sticker melamine, urea-formaldehyde glue immersion-type facing paper (grammes per square metre 80g/m
2To 120g/m
2), or adopt adhesive hot pressing such as urea-formaldehyde glue, paste wooden skin, then the spraying nitro class colored varnish (NC) on wooden skin.The defective of its existence is:
1) contaminated environment.Many steam or the deep fats that provide from coal-burning boiler of thermal source in the present hot pressing sticker process.The SO that discharged from coal-fired boiler goes out
2, NO
X, dust; Adhesive such as urea-formaldehyde glue discharge free formaldehyde to the external world; Contain volatile materials and other solid pollutants such as VOC, TDI, toluene and dimethylbenzene, heavy metal, peculiar smell, dust in the NC lacquer; In addition, one side requires to provide continuously water purification formation water curtain " wall " and air negative pressure system equally in the NC lacquer covering with paint technical process in the spray room, and NC coats with lacquer " splash " on the other hand, sediment falls into again endlessly need be to the water system of external world's discharging.In sum, they have all constituted the pollution sources of natural environment, are detrimental to health, and have increased the weight of water purification resource load.
2) pressing laminate moulding technology is complicated.Need just can finish through each operations such as impregnation, gluing, cut a sheet of paper (wooden skin shearing), wooden skin sorting, wooden skin piece, plywood, hot pressing, stress equilibrium, dyeing, the spraying of NC lacquer, drying varnisses.
3) drying varniss speed is slow.The product coating paint film equally only slowly just can be finished the paint film film forming procedure in dry 48 hours under the dustless baking room condition of 35 ℃-40 ℃ of constant temperature, in Product industrialization, large-scale production process, lack the synchronizing capacity with other manufacturing procedure of product.
4) be an impediment to the protection forest resourceies.High forestick skin is taken from the wildwood resource mostly, and the main resource of impregnated paper consumption also is forest resourceies.
5) the product edge technique controlling difficulty is big in the aftershaping process.For example (be impregnated with the white or the wood grain look facing paper of melamine/urea-formaldehyde glue resin with the two sides as the melamine/urea-formaldehyde glue immersion-type dalle of base material using with gauge 12mm-25mmMDF, mat formation at the MDF substrate surface, the sheet material that forms through hot pressing, hereinafter to be referred as the triamine plate) make in the process of product, need to cut out saw triamine plate (its target book size is generally 2440X1220mm) according to the product order size earlier, and then the sheet material behind the saw that cuts into two exact halves carries out aftershaping processing such as edge sealing, fluting, boring again.Because " black surround " glue trace that edge sealing stays during with glue and triamine plate plate face place are at grade, make edge sealing edge look convergence plate face in order to hide the glue trace, on the technology just must in product aftershaping process almost be 100% to carry out artificial sand milling to the glue trace at product edge place, mend greasy, wipe look/repair look and handle (the glue trace at product edge place manually being wiped the difficulty of look/repair look during with pure white, thin shade triamine plate making product such as light yellow can be higher).But problem such as the poor adhesive force of Cun Zaiing often makes their can separate and influence product quality again in the product use between the two;
3, be coating material (mainly being pure white PE) with polyester (PE), MDF plate face carried out clad can decorate.There is the big above-mentioned defective of product edge processing method difficulty in the aftershaping process equally in it.
Summary of the invention
The problem to be solved in the present invention is exactly at the defective of above-mentioned technology or deficiency, and provide a kind of medium density fibre board (MDF) (MDF) product surface is carried out directly the method for covering with paint and non-environmental-pollution fast.Its technical scheme may further comprise the steps:
(1) be base material with medium density fibre board (MDF) (MDF);
(2) cut out the MDF that the two sides is vegetarian noodles according to product design, order size saw, and then the MDF stock board after the saw sanction is carried out the aftershaping processing that edge sealing, fluting, boring, plane or isoplanar concave surface mill type;
(3) concave surface on the MDF product surface is carried out spraying of PU colored paint or brushing;
(4) according to product design, order size the MDF product surface is carried out thick surely sanding;
(5) set up and to be coated with ornamental thread continuously: priming paint roll coater, intaglio press and finish paint roll coater are installed covering with paint, lacquer, colour wash, etc. the place, and near priming paint roll coater, intaglio press and finish paint roll coater the installation drying machine, the light source that installation can generate electromagnetic waves in the drying machine;
(6) open the drying machine light source, be coated with continuously on the ornamental thread by the priming paint roll coater priming paint direct roller coat on vegetarian noodles MDF product surface as base coat, base coat is 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition that the drying machine light source produces;
(7) direct bat printing has on the MDF product surface of respective base coating at roller coat with Wood-grain-imitating by intaglio press use printing ink or UV printing ink being coated with continuously on the ornamental thread, on the MDF product surface, form wood grain emulation coating, wood grain emulation coating is able in 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition that the drying machine light source produces;
(8) direct roller coat forms the clad can coating on the MDF product surface finish paint by the finish paint roll coater being coated with continuously on the ornamental thread, and the clad can coating is 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition that the drying machine light source produces, must product.
Drying machine of the present invention is a prior art, the light source that drying machine uses is specific light source, make pure white, have under the Electromagnetic Interference condition that color bottom paint, finish paint specific light source in the covering with paint process produces, in the 0.5-2 scope in second, realize the wink-dry film forming, the present invention claims that they are the electromagnetism lacquer.
Compared with prior art the present invention has following beneficial effect:
1, covering with paint speed is fast.The present invention is being coated with on the ornamental thread pure white, the coloured or continuous roller coat of wood grain coating on the MDF surface in commercial process, and adopts the Electromagnetic Interference mode to make roller coat be able to finish wink-dry at 0.5 second to the scope in 2 seconds in the lip-deep coating of MDF.Realized the high efficiency covering with paint in MDF Product industrialization, the large-scale production field.
2, " zero-emission " of pollutant, " zero pollutes " of environment.Product confirms through the examining report result that product quality at the provincial and ministerial level inspection center provides: the resin content in the electromagnetism lacquer that uses in the covering with paint process of the present invention is up to more than 99%, and wherein contained VOC, benzene, toluene and dimethylbenzene, heavy metal, formaldehyde discharge external discharge capacity in volatile injurant matter content and the production process thereof such as limit the quantity of and has only 1/1.67,1/500,1/1900,1/1500 and 1/5 of China E0 and GB18580,18584-2001 standard allowable value respectively; The present invention adopts the Electromagnetic Interference mode to implement dry to direct covering with paint in lip-deep pure white, the coloured or wood grain coating of vegetarian noodles MDF, do not relate to the use of water purification, water for industrial use, coal resources consumption and adhesive, forfeited generation sewage, SO from the source of industry
2, NO
X, pollutant such as pernicious gas, noise possibility.
3, through check, the present invention can make the MDF surface obtain to have pure white, the coloured or Wood-grain-imitating coating of following outstanding physical and chemical performance:
1) paint film is fast in colour stable under moisture-proof heat, weatherability, adhesive force height, the sunshine condition;
2) the progressive corrosion effect that can effectively stop all contaminations that product surface is existed;
3) product surface has good keep a public place clean performance and hand sense of touch;
4) wood grain emulation paint film is true to nature, clear, bright, bright, and vision third dimension, affinity are preferably enriched, had to exquisiteness, wood grain clear layer, contrast;
5) very outstanding wear-resisting wiping and anti-steel wire lump abrade performance.
4, possess the heterochromatic coating scale of isoplanar concave surface and cover with paint, lacquer, colour wash, etc. ability, help by a relatively large margin raising added value of product and selling point level.With the inventive method MDF product isoplanar concave surface is carried out technology that heterochromatic coating covers with paint, lacquer, colour wash, etc. and filled up blank in the heterochromatic covering with paint technology field in China isoplanar, cracked and immersed mutually, disturbing between heterochromatic coated thread (phase) boundary on the product surface, the difficult problem that various process aspects such as easy generation " bluring " unclear defective exist.
5, the present invention is being coated with on the ornamental thread the white coating roller coat on the MDF surface in commercial process, and adopt the Electromagnetic Interference mode to make roller coat be able to finish to the scope in 2 seconds the technology of wink-dry at 0.5 second at the lip-deep white coating of MDF, efficiently solve weakening with titanium dioxide (TiO
2) be the Chinese white screen effect problem intrinsic of Main Ingredients and Appearance to electromagnetic wave (UV).The present invention passes through Electromagnetic Interference, make in the coating resin as the activated centre, the free radical that contains the polyelectron system can be from the ground state transition to excitation state under the interference of photoelectricity magnetic wave, and under excited state, increase effective charge by drilling effect, reduce orbital energy, reduce wherein Chinese white to being in the shielding electromagnetic waves effect of various motion states, covalent bond generation homolysis in the coating resin molecular structure, radical polymerization chain (benzoin ethyl ether, initators such as benzoin isobutyl ether) caused, increase, shift and stop, finally allow white photosensitive resin in the moment in 0.5--2 second scope, be cross-linked into rapidly netted three-dimensional-structure photosensitive paint film and firmly on the substrate surface of MDF product.
6, adopt the inventive method to obtain the effect of " coating engineering amplification ", realized that first the key element between servo intaglio plate three gamut seal technology and the continous way roller coat system is integrated, made lip-deep pure white, the coloured or wood grain coating of MDF between same continous way roller coat system, be able to scale respectively and cover with paint, lacquer, colour wash, etc. and realize wink-dry.
7, the wood grain coating that realizes on the MDF surface of the present invention does not relate to the forest resourceies consumption from trees such as wooden skin, facing paper, is of value to the protection forest resourceies.
8, the present invention carries out edge sealing, fluting, holes, mills type the MDF stock board after the saw sanction earlier, carries out thick surely sanding then, directly covers with paint, lacquer, colour wash, etc.When the product surface top roll is primed, paint film covers simultaneously to the joint portion of edge bonding belt and product surface, thoroughly hidden the hole that the joint portion often exists before the roller coat priming paint, aberration, the edge is the edge sealing defectives such as " sharp cutting edges of a knife or a sword " at 90 ° of angles, the covering with paint of realization electromagnetic interference is carried out high-quality to product edge sealing edge (comprising 45 ° of chamfered edge edges wherein) and is mended greasy, wiping the moment of look handles, do not need artificial sand milling after the covering with paint, mend greasy, wipe look, make colour killing or coloured putty possess good resistance to persistence in MDF edge, moisture resistance, scraping and wiping resistance performance, and can effectively solve edge sealing " sharp cutting edge of a knife or a sword " problem that production board face edge is 90 ° of angles.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Referring to Fig. 1, the inventive method may further comprise the steps:
(1) with thickness is medium density fibre board (MDF) (MDF) (the density 720--860Kg/m of 8mm～25mm
3) be base material.
(2) (its target book size is generally 2440mm * 1220mm), and then the MDF stock board after saw cut out carries out the aftershaping processing that edge sealing, fluting, boring, plane or isoplanar concave surface mill type to cut out the MDF that the two sides is vegetarian noodles according to product design, order size saw.
(3) concave surface on the MDF product surface is carried out spraying of PU colored paint or brushing.Since the concave surface area on the MDF product surface be far smaller than the area of plane (usually the concave surface area have only the area of plane 5% to 8%), therefore its rate of drying is very fast, and the pollution level of environment is also coated with lacquer the level that plane, concave surface spray, brushing PU coats with lacquer that reducing significantly of consumption is far smaller than on the MDF product surface because of PU.
(4) on the high speed belt sander, the MDF product surface is carried out thick surely sanding according to product design, order size.The effect of fixed thick sanding mainly contains following two: the one, the gauge error of product is unified standard in rated range, and the 2nd, remain in the colored paint on the product surface when sand goes (removal) concave surface on product surface to spray (or brushing) PU colored paint simultaneously.
(5) foundation is coated with ornamental thread continuously: covering with paint, lacquer, colour wash, etc. place installation priming paint roll coater, intaglio press and finish paint roll coater, and 2m installs drying machine in position far away near priming paint roll coater, intaglio press and finish paint roll coater, and far infrared, Ga or UV light source are installed in the drying machine.Drying machine according to circumstances can be installed in respectively priming paint roll coater, intaglio press and finish paint roll coater near, also can between roll coater and intaglio press, install again as required; The light source of drying machine can select far infrared, Ga or UV light source to use as required.
(6) open the drying machine light source, be coated with continuously on the ornamental thread by the priming paint roll coater pure white, as base coat, base coat is 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition of drying machine far infrared light source, Ga or the generation of UV light source on vegetarian noodles MDF product surface for the direct roller coat of coloured enamel.
(7) direct bat printing has on the MDF product surface of respective base coating as background color at roller coat with Wood-grain-imitating by servo roll-type radium-shine intaglio press use printing ink or UV printing ink being coated with continuously on the ornamental thread, on the MDF product surface, form bat printing texture and the corresponding to wood grain emulation of radium-shine intaglio plate texture coating, wood grain emulation coating is able in 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition that drying machine far infrared light source, Ga or UV light source produce.
(8) the direct roller coat of finish paint that transparent or white etc. has remarkable anti-steel wool scratch performance is formed the clad can coating being coated with continuously on the ornamental thread by the finish paint roll coater on the MDF product surface, the clad can coating is 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition of drying machine far infrared light source, Ga or the generation of UV light source.
(9) examination and test of products.
(10) finished product packing.
(11) finished product warehouse-in.
Claims (1)
1. one kind is carried out the method that directly cover with paint, lacquer, colour wash, etc. on the surface to medium density fibre board (MDF), it is characterized in that may further comprise the steps:
(1) with the medium density fibre board (MDF) is base material;
(2) cut out the medium density fibre board (MDF) that the two sides is vegetarian noodles according to product design, order size saw, and then the medium density fibre board (MDF) stock board after the saw sanction is carried out the aftershaping processing that edge sealing, fluting, boring, plane or isoplanar concave surface mill type;
(3) to lip-deep concave surface spraying of medium density fibre board (MDF) or brushing PU colored paint;
(4) according to product design, order size thick surely sanding is carried out on the medium density fibre board (MDF) surface;
(5) foundation is coated with ornamental thread continuously: covering with paint, lacquer, colour wash, etc. place installation priming paint roll coater, intaglio press and finish paint roll coater, and 2m installs drying machine, installation can generate electromagnetic waves in the drying machine far infrared, Ga or UV light source in position far away near priming paint roll coater, intaglio press and finish paint roll coater;
(6) open the drying machine light source, be coated with continuously on the ornamental thread by the priming paint roll coater priming paint direct roller coat on vegetarian noodles medium density fibre board (MDF) surface as base coat, base coat is 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition that the drying machine light source produces;
(7) direct bat printing has on the medium density fibre board (MDF) surface of respective base coating at roller coat with Wood-grain-imitating by intaglio press use printing ink or UV printing ink being coated with continuously on the ornamental thread, on the medium density fibre board (MDF) surface, form wood grain emulation coating, wood grain emulation coating is able in 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition that the drying machine light source produces;
(8) direct roller coat forms the clad can coating on the medium density fibre board (MDF) surface finish paint by the finish paint roll coater being coated with continuously on the ornamental thread, and the clad can coating is 0.5-2 wink-dry in second film forming under the Electromagnetic Interference condition that the drying machine light source produces, must product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103024280A CN101549520B (en) | 2009-05-19 | 2009-05-19 | Method for surface directly coating beaverboard of middle density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103024280A CN101549520B (en) | 2009-05-19 | 2009-05-19 | Method for surface directly coating beaverboard of middle density |
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| Publication Number | Publication Date |
|---|---|
| CN101549520A CN101549520A (en) | 2009-10-07 |
| CN101549520B true CN101549520B (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103024280A Expired - Fee Related CN101549520B (en) | 2009-05-19 | 2009-05-19 | Method for surface directly coating beaverboard of middle density |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535813A (en) * | 2012-01-11 | 2012-07-04 | 广州广洋富格丽家居材料有限公司 | Simulated wood board and production method thereof |
| CN105856822B (en) * | 2016-04-19 | 2018-07-17 | 东莞市华立实业股份有限公司 | A kind of coating process |
| CN107470110A (en) * | 2016-12-29 | 2017-12-15 | 浙江圣奥家具制造有限公司 | A kind of novel environment friendly UV roller coat wipes color method |
| CN108638280A (en) * | 2018-05-28 | 2018-10-12 | 嘉兴涌锦服饰有限公司 | A kind of preparation process on floor |
| CN112295870A (en) * | 2020-10-26 | 2021-02-02 | 河北盛可居装饰材料有限公司 | Powder spraying method for special-shaped MDF coated decorative line |
| CN114454286A (en) * | 2021-12-28 | 2022-05-10 | 美克国际家居用品股份有限公司 | Piano paint coating process embedded with amber texture of wood veneer |
| CN114633334B (en) * | 2022-03-21 | 2022-10-25 | 小森新材料科技有限公司 | Anti-yellowing matte surface coating process for UV (ultraviolet) photocureable coating of solid wood composite board |
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2009
- 2009-05-19 CN CN2009103024280A patent/CN101549520B/en not_active Expired - Fee Related
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Effective date of registration: 20110218 Address after: 611230, Sichuan, Chongzhou province Chengdu Industrial Zone, all friends Industrial Park friends Furniture Co., Ltd. Co-patentee after: Zhang Youquan Patentee after: Quanyou Furniture Co., Ltd. Co-patentee after: Zhu Jianyong Address before: 611230, Sichuan, Chongzhou province Chengdu Industrial Zone, all friends Industrial Park friends Furniture Co., Ltd. Co-patentee before: Zhang Youquan Patentee before: Chengdu QuanU Furniture Co., Ltd. Co-patentee before: Zhu Jianyong |
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Granted publication date: 20101013 Termination date: 20170519 |
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