EP2374547A1 - Verfahren und Vorrichtung zum Härten einer Beschichtung - Google Patents
Verfahren und Vorrichtung zum Härten einer Beschichtung Download PDFInfo
- Publication number
- EP2374547A1 EP2374547A1 EP10159399A EP10159399A EP2374547A1 EP 2374547 A1 EP2374547 A1 EP 2374547A1 EP 10159399 A EP10159399 A EP 10159399A EP 10159399 A EP10159399 A EP 10159399A EP 2374547 A1 EP2374547 A1 EP 2374547A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- approximately
- irradiating
- substrate
- moving
- 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.)
- Withdrawn
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 86
- 239000011248 coating agent Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000001678 irradiating effect Effects 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 238000010526 radical polymerization reaction Methods 0.000 claims abstract description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 13
- 229910052753 mercury Inorganic materials 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 239000003999 initiator Substances 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 2
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- FAQJJMHZNSSFSM-UHFFFAOYSA-N phenylglyoxylic acid Chemical compound OC(=O)C(=O)C1=CC=CC=C1 FAQJJMHZNSSFSM-UHFFFAOYSA-N 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 2
- -1 αHydroxyketone Chemical compound 0.000 claims description 2
- 238000001723 curing Methods 0.000 description 16
- 229910001507 metal halide Inorganic materials 0.000 description 7
- 150000005309 metal halides Chemical class 0.000 description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000012965 benzophenone Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
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
- 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
- B05D3/04—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 gases
- B05D3/0466—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 gases the gas being a non-reacting gas
-
- 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
- B05D3/066—After-treatment involving also the use of a gas
Definitions
- the present invention relates to a method for curing a coating.
- the invention further relates to a device for curing a coating.
- UV light ultraviolet
- UV-curable coatings are solvent-free compositions that cure upon exposure to UV or electron beam source. Most available UV curable coatings are based on acrylate chemistry that cures via radical polymerisation. The coatings, before curing in liquid form, contain a mixture of reactive oligomer, one or more reactive monomers, an UV-light absorbing component, i.e. a photo initiator, and some more additives.
- a substrate provided with the UV-curable coating is exposed to high energy UV-light, such as a high pressure discharge lamp, with an output of approximately 160 W/cm to induce instant hardening of the coating in a fraction of a second. Since typical a photo initiator tends to react with oxygen in the environment, an overdose of photo initiator is used to ensure in proper polymerization of the coating. Further, the energy of the UV-light source is focused using lenses or mirrors to achieve this high energy exposure.
- high energy UV-light such as a high pressure discharge lamp
- the method according to the invention allows the use of low energy UV light to cure a coating. Due to the fact that the irradiating takes place in a substantially inert environment, the problem of the photo initiator reacting with oxygen is reduced such that a low energy UV light can be used.
- the method thus allows curing coatings with less energy compared to traditional curing methods using for instance high discharge lamps for irradiating a material, for instance a coating.
- the substrate provided with a coating facing towards the light source for irradiating the UV-light is moved through the inert environment.
- the light source can hereby remain stationary, while the substrate is moved, for instance using an endless belt.
- the step of irradiating comprises irradiating the coating with a power of between approximately 0,01 to 0,04 W/cm 2 , preferably between approximately 0,02 to 0,03 W/cm 2 and more preferably with a power of approximately 0,025 W/cm 2 .
- the total dosage of UV-light is between 0,15 and 0,60 J/cm 2 , more preferably between approximately 0,30 and 0,45 J/cm 2 and even more preferably the total dosage is approximately 0,375 J/cm 2 .
- the coating is irradiated during approximately 15 seconds.
- the step of irradiating comprises irradiating the coating with at least one low pressure discharge lamp, preferably a low pressure mercury vapour lamp.
- at least one low pressure discharge lamp preferably a low pressure mercury vapour lamp.
- Such lamps have a high efficiency and long life time. Further, such lamps do not require cooling as with the lamps used in conventional methods.
- the step of irradiating comprises irradiating the coating with a plurality of UV-wavelengths, preferably UV-A and UV-C, more preferably with a wavelength of approximately 254 nm, respectively approximately 365 nm.
- the coating is first irradiated with UV-C light and subsequently with UV-A light. This allows curing of the coating throughout the whole height of the coating.
- the step of irradiating comprises irradiating the coating with UV-A with a power of between approximately 0,0067 and 0,0267 W/cm 2 , preferably between approximately 0,013 and 0,020 W/cm 2 and more preferably with a power of approximately 0,0167 W/cm 2 .
- the total dosage of the UV-A is preferably approximately between 0,075 and 0,3 J/cm 2 , more preferably between approximately 0,15 and 0,225 J/cm 2 and more preferably approximately 0,1875 J/cm 2 . This ensures proper curing of the parts of the coating extending towards the light source, i.e. the top layer of the coating.
- the step of irradiating comprises irradiating the coating with UV-C with a power of between approximately 0,0033 and 0,0133 W/cm 2 , preferably between approximately 0,067 and 0,01 W/cm 2 and more preferably with a power of approximately 0,083 W/cm 2 .
- the total dosage of the UV-C is preferably approximately between 0,075 and 0,3 J/cm 2 , more preferably between approximately 0,15 and 0,225 J/cm 2 and more preferably approximately 0,1875 J/cm 2 . This ensures proper curing of the parts of the coating extending away the light source, i.e. the deeper parts of the coating.
- the coating is irradiated along a length of said substrate, the length being between 0,5 and 4 meters, preferably between 1 and 2 meters and more preferably the length is approximately 1,5 meters, and wherein the step of moving the substrate comprises moving the substrate with a speed of 5 to 40 meter per minute, preferably between 10 to 20 meter per minute and more preferably with a speed of approximately 15 meter per minute.
- the processing speed is thus lower compared to conventional curing methods.
- the problem of heating associated with the high power UV-light sources is reduced.
- providing a substantially inert environment comprises providing a volume of an inert gas at least between the light source and the coating, the gas comprising at least one gas chosen from the group of nitrogen, carbon dioxide and helium.
- the space surrounding the substrate may be filled with an inert gas, most preferably nitrogen, using means known in the art.
- the method may be performed in an enclosed space, wherein a pump is arranged to supply the gas to the enclosed space.
- each of the light sources and the coating to be irradiated extends in the volume of gas. It is however possible to use multiple volumes, each extending at least between the light sources and the coating.
- the coating comprises a radical-type photo initiator of the hydrogen abstraction type, preferably at least one chosen from the group of benzophenon, ⁇ Hydroxyketone, Phenylglyoxylate, Benzyldimethyl-ketal, ⁇ -Aminoketone, Mono-AcylPhosphine,Bi-Acyl-Phosphine.
- the coating comprises at least one coating chosen from the group of Epoxy Acrylate, Urethane Acrylate,, Polyester Acrylate, Polyether Acrylate.
- the invention further relates to a device for curing a coating comprising:
- the moving means are arranged to hold and move the substrate with a coating with respect to the irradiating means.
- the irradiating means can thus remain stationary.
- the irradiating means comprise at least one low pressure discharge lamp, preferably a low pressure mercury vapour lamp.
- the irradiating means irradiate the coating on the substrate while the substrate is moved.
- the environment means create a substantially inert environment at least in the space between the irradiating means and the moving means in the region where the coating is irradiated.
- the lamp extends in the direction of movement of the moving means.
- a low pressure discharge lamp is normally tube shaped. By placing such a lamp with the longitudinal axis parallel to the direction of movement of the moving means, a larger area in the direction of movement is irradiated by the lamp.
- a further preferred embodiment of the device comprises a plurality of lamps for irradiating the coating along a length on the moving means. This ensures that a proper dosage as described above is applied to the coating to allow proper curing.
- At least one the lamps is arranged to irradiate UV-A and at least one of the lamps is arranged to irradiate UV-C, more preferably at least one lamps is arranged to irradiate light with a wavelength of approximately 254 nm and at least one lamp is arranged to irradiate light with a wavelength of approximately 365 nm. It may be possible to use a single lamp principally irradiating both wave lengths.
- the moving means are arranged to move the substrate with a speed of 5 to 40 meter per minute, preferably between 10 to 20 meter per minute and more preferably with a speed of approximately 15 meter per minute with respect to the irradiating means.
- UVA lamps 2 and 10 UVC lamps 3 are placed within a gas tight housing 4, longitudinal to the transportation direction of the coating indicated with I.
- the device 1 is provided with an endless belt 5 to move a substrate provided with a coating through the housing 4 in the moving direction I.
- the UVC lamps 3 have a length of 120 cm and a power of 55 Watt.
- the lamps are placed adjacent to each other to cover a width of 50 cm.
- the UVA lamps 2 have a length of 60 cm and a power of 60 Watt the lamps are also placed adjacent to each other to cover a width of 50 cm.
- the coating comprising of water based PUD dispersion, a Benzophenone based photo initiator and several additives for levelling, wetting and matting, is transported along the length of the lamps in a time frame of 15 seconds.
- an inert environment is created using nitrogen gas coming from pressurized cylinders at a flow of 7 1/ min resulting in an oxygen concentration of ⁇ 0,1%.
- rollers 6 are provided to seal of the environment between the lamps 2 and 3 and the substrate.
- Table 1 shows the energy density and energy dose of the low power UV source in comparison to 3 commercial available high intensity light sources. The values are measured using an EIT UV power puck, This device is measuring four wavelengths. UVA (320-390nm), UVB (280-320nm), UVC (250-260nm) and UVV (395-445nm). The unit measures intensity in W/cm 2 and total dose in J/cm 2 .
- Low power UV 0,01 0,06 -- -- 0,00 3 0,03 -- -- Metal halide arc lamp 1,16 0, 67 0,86 0,50 0,30 0,17 0,77 0,46
- Microwave powered 2 64 1,78 0, 69 0,76 0,15 0,13 1, 17 1,33
- the invention uses a large uniform source compared to the focussed light found in common exposure units. This is resulting in longer exposure times. Common units have a small light footprint resulting in radiation times of +/-0,5 seconds. The invention uses long lamps with a large footprint, resulting in an exposure time of +/- 15 seconds.
- Table 2 shows the resistance of the coating against rubbing with a cloth drained with Methyl Ethyl Ketone. The lower cross linking values result in poorer rub resistance.
- Table 2 MEK rub test Light source UV dose # of rubs None 0 1 Low power UV 0,06 5 Low power UV 0,09 5 Low power UV 0,09 5 Low power UV 0,15 10 Low power UV 0,22 10 Low power UV 0,45 10 Microwave powered 1,24 10 Low power UV 0,30 20 Microwave powered 2,49 30 Microwave powered 3,73 30 Low power UV 0,30 40 Metal halide arc lamp 0,45 40 Low power UV 0,45 40 Mercury arc lamp 0,73 40 Metal halide arc lamp 0,89 40 Mercury arc lamp 1,09 50 Microwave powered 3,74 70 Microwave powered 0,75 100 Mercury arc lamp 1,09 100 Metal halide arc lamp 1,34 100 Mercury arc lamp 2,18 100
- Table 3 shows the results of the pen test.
- the coating is marked with a permanent marker and after 5 minutes the mark is removed with MEK. This also confirms that the low density exposure results in a less densely cross linked but more flexible coating.
- Table 3 Pen resistance test UV Source UV dose value None 0 1 Low power UV 0,06 1 Low power UV 0,09 1 Low power UV 0,09 1 Low power UV 0,15 1 Low power UV 0,30 1 Low power UV 0,45 1 Microwave powered 1,24 1 Low power UV 0,03 2 Low power UV 0,45 2 Low power UV 0,22 3 Microwave powered 3,74 3 Metal halide arc lamp 0,45 4 Mercury arc lamp 0,73 5 Metal halide arc lamp 0,89 5 Mercury arc lamp 1,09 5 Mercury arc lamp 1,09 5 Metal halide arc lamp 1,34 5 Mercury arc lamp 2,18 5
- the present invention is not limited to the embodiment shown, but extends also to other embodiments falling within the scope of the appended claims. It may for instance be possible to use different lengths for the low power lamps, provided that the dosage of the UV-light is suitable for curing the coating.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10159399A EP2374547A1 (de) | 2010-04-08 | 2010-04-08 | Verfahren und Vorrichtung zum Härten einer Beschichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10159399A EP2374547A1 (de) | 2010-04-08 | 2010-04-08 | Verfahren und Vorrichtung zum Härten einer Beschichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2374547A1 true EP2374547A1 (de) | 2011-10-12 |
Family
ID=42556926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10159399A Withdrawn EP2374547A1 (de) | 2010-04-08 | 2010-04-08 | Verfahren und Vorrichtung zum Härten einer Beschichtung |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP2374547A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2786807A1 (de) * | 2013-04-05 | 2014-10-08 | IOT - Innovative Oberflächentechnologie GmbH | Vorrichtung zur Inertisierung bei UV-Bestrahlung in offenen Durchlaufanlagen |
| WO2017136509A1 (en) * | 2016-02-02 | 2017-08-10 | Sensor Electronic Technology, Inc. | Curing ultraviolet sensitive polymer materials |
| CN110976247A (zh) * | 2019-12-16 | 2020-04-10 | 江苏靓时新材料科技股份有限公司 | 一种灯制超哑肤感板材的装置 |
| CN113634464A (zh) * | 2021-05-14 | 2021-11-12 | 邦弗特新材料股份有限公司 | 一种用于uv油漆固化的mec组合光源系统 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2355657A1 (de) * | 1972-11-07 | 1974-05-16 | Mitsubishi Rayon Co | Verfahren zum haerten von synthetischen, polymeren filmschichten durch die bestrahlung mit strahlungsenergie |
| US3918393A (en) * | 1971-09-10 | 1975-11-11 | Ppg Industries Inc | Method of producing flat (non-glossy) films |
| DE102004030674A1 (de) * | 2004-06-24 | 2006-01-19 | Basf Ag | Vorrichtung und Verfahren zum Härten mit energiereicher Strahlung unter Inertgasatmosphäre |
| DE102005024362A1 (de) * | 2005-05-27 | 2006-11-30 | Basf Coatings Ag | Verfahren zur Herstellung kratzfester gehärteter Materialien |
-
2010
- 2010-04-08 EP EP10159399A patent/EP2374547A1/de not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918393A (en) * | 1971-09-10 | 1975-11-11 | Ppg Industries Inc | Method of producing flat (non-glossy) films |
| DE2355657A1 (de) * | 1972-11-07 | 1974-05-16 | Mitsubishi Rayon Co | Verfahren zum haerten von synthetischen, polymeren filmschichten durch die bestrahlung mit strahlungsenergie |
| DE102004030674A1 (de) * | 2004-06-24 | 2006-01-19 | Basf Ag | Vorrichtung und Verfahren zum Härten mit energiereicher Strahlung unter Inertgasatmosphäre |
| DE102005024362A1 (de) * | 2005-05-27 | 2006-11-30 | Basf Coatings Ag | Verfahren zur Herstellung kratzfester gehärteter Materialien |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2786807A1 (de) * | 2013-04-05 | 2014-10-08 | IOT - Innovative Oberflächentechnologie GmbH | Vorrichtung zur Inertisierung bei UV-Bestrahlung in offenen Durchlaufanlagen |
| WO2017136509A1 (en) * | 2016-02-02 | 2017-08-10 | Sensor Electronic Technology, Inc. | Curing ultraviolet sensitive polymer materials |
| US10907055B2 (en) | 2016-02-02 | 2021-02-02 | Sensor Electronic Technology, Inc. | Curing ultraviolet sensitive polymer materials |
| CN110976247A (zh) * | 2019-12-16 | 2020-04-10 | 江苏靓时新材料科技股份有限公司 | 一种灯制超哑肤感板材的装置 |
| CN113634464A (zh) * | 2021-05-14 | 2021-11-12 | 邦弗特新材料股份有限公司 | 一种用于uv油漆固化的mec组合光源系统 |
| CN113634464B (zh) * | 2021-05-14 | 2024-05-24 | 邦弗特新材料股份有限公司 | 一种用于uv油漆固化的mec组合光源系统 |
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