CN113649248A - Matte UV coating, preparation method thereof and matte decorating part containing coating - Google Patents
Matte UV coating, preparation method thereof and matte decorating part containing coating Download PDFInfo
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- CN113649248A CN113649248A CN202110824141.5A CN202110824141A CN113649248A CN 113649248 A CN113649248 A CN 113649248A CN 202110824141 A CN202110824141 A CN 202110824141A CN 113649248 A CN113649248 A CN 113649248A
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- Prior art keywords
- matte
- coating
- board
- layer
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- 238000000576 coating method Methods 0.000 title claims abstract description 59
- 239000011248 coating agent Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000004381 surface treatment Methods 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 52
- 239000000758 substrate Substances 0.000 claims description 24
- 239000003973 paint Substances 0.000 claims description 15
- 239000011241 protective layer Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 4
- 239000000378 calcium silicate Substances 0.000 claims description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 3
- 238000007766 curtain coating Methods 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000005286 illumination Methods 0.000 abstract description 7
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000016776 visual perception Effects 0.000 abstract description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 11
- 239000004800 polyvinyl chloride Substances 0.000 description 11
- 238000007639 printing Methods 0.000 description 8
- 238000007761 roller coating Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 3
- 239000006224 matting agent Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/02—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
-
- 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
- B05D3/007—After-treatment
-
- 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
- B05D3/067—Curing or cross-linking the coating
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a matte UV coating and a preparation method thereof, wherein in a nitrogen environment, the UV coating is pre-cured by a UV light source and then subjected to surface treatment by an excimer lamp with the wavelength of 172nm to obtain the matte UV coating; also disclosed are matte films and matte boards comprising the matte UV coating. The invention can realize different matte touch feelings according to different irradiation energies of the UV light source and the excimer lamp, can meet higher requirement visual perception effect and more excellent surface touch texture, uses the excimer light irradiation technology to replace the traditional flatting agent, the surface texture of the product irradiated by the excimer light is superior to the effect which can be achieved by the flatting agent, the glossiness of the product is less than or equal to 10Gu, the process is more controllable compared with the process adopting the flatting agent, and different matte effects can be obtained only by adjusting the illumination intensity.
Description
Technical Field
The invention belongs to the technical field of decorative materials, and particularly relates to a matte UV coating, a preparation method thereof and a matte decorating piece containing the coating.
Background
The matte coatings coated in the conventional mode form uneven coating surfaces by adding matting powder such as silicon powder into a paint layer, so that light diffuse reflection of the paint surface plays a role in matting. In addition, the matte effect of the existing coating process can only be more than 30 ℃, the texture of the product is poor, and the industrial atmosphere is rich.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the invention provides a matte UV coating, a preparation method thereof and a matte decorating part containing the coating, wherein the matte UV coating can meet higher requirements of visual appearance effect and more excellent surface touch texture.
According to one aspect of the invention, the matte UV coating is prepared by precuring the UV coating by a UV light source and then carrying out surface treatment on the UV coating by an excimer lamp with the wavelength of 172nm in a nitrogen environment.
In some embodiments of the present invention, after the surface treatment of the excimer lamp, an electron beam surface treatment is further performed. EB radiation enables molecules to be cross-linked and combined to form a three-dimensional structure, so that the performances of heat resistance, mechanical mechanics and the like of the high polymer material are improved, the scratch resistance of the surface is improved, the weather resistance, antifouling and antibacterial performances are improved, and the impact resistance of the product is enhanced.
In some embodiments of the invention, the UV light source is one of a gallium lamp, a mercury lamp, an iron lamp, or an LED lamp. Preferably, the UV light source is an LED lamp.
In some embodiments of the invention, the illumination of the UV light source is 15-780mw/cm2The illuminance of the excimer lamp is 30-200mW/cm2。
In some embodiments of the invention, the UV coating is applied at a weight of 5 to 50g/m2。
In some embodiments of the invention, the nitrogen concentration is 99.9% or more. Preferably, the concentration of the nitrogen is 99.99-99.999%.
The invention also provides a matte UV coating prepared by the preparation method.
In some embodiments of the invention, the matte UV coating has a gloss of ≦ 10 Gu.
The invention further provides a matte decorating part which comprises the matte UV coating, and the matte decorating part is a matte film or a matte board.
In some embodiments of the invention, the matte film comprises, from bottom to top, a substrate layer, a decorative layer, a protective layer, and the matte UV coating; the substrate layer is made of one of PVC, PP, PET or PETG.
In some embodiments of the invention, the matte board comprises a substrate board, a decorative layer, an abrasion-resistant layer and the matte UV coating from bottom to top; the substrate board is one of a plastic board, a glass magnesium board or a calcium silicate board.
In some embodiments of the invention, the wear-resistant layer is compounded by at least one of PVC, PP, PET or PETG film, or is formed by rolling coating or spraying coating or curtain coating and stacking UV paint or PU or PUR.
In some preferred embodiments of the present invention, the wear layer is coated at a weight of 60 to 250g/m2。
In some embodiments of the invention, the matte board comprises a substrate board and a facing film, the facing film comprises a substrate layer, a decorative layer, a protective layer and the matte UV coating from bottom to top, and the substrate board and the facing film are bonded by glue or hot-pressed and compounded; the substrate layer is made of one of PVC, PP, PET or PETG; the substrate board is one of a plastic board, a glass magnesium board or a calcium silicate board.
In some embodiments of the invention, the decorative layer may be applied by a printed film or printed with a digital printer.
According to a preferred embodiment of the present invention, at least the following advantages are provided:
1. the invention can realize different matte touch according to different irradiation energies of the UV light source and the excimer lamp, and can meet the visual perception effect with higher requirements and more excellent surface touch texture.
3. The invention uses the excimer light irradiation technology to replace the traditional flatting agent, the surface texture of the product irradiated by the excimer light is superior to the effect which can be achieved by the flatting agent, and the glossiness of the product is less than or equal to 10 Gu; compared with the process adopting the flatting agent, the process is more controllable, and different matte effects can be obtained only by adjusting the illumination intensity.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Example 1
The embodiment prepares a matte film, and the matte film is PVC substrate layer, decorative layer, protective layer and matte UV coating from bottom to top in proper order, and the concrete process is:
(1) printing a decorative layer: printing decorative patterns on the PVC substrate layer by using a digital printer to form a decorative layer;
(2) pressing and pasting a protective layer: hot-pressing a layer of colorless semi-hard polyvinyl chloride film with the thickness of 60 mu m on the decorative layer to form a protective layer;
(3) roller coating of UV paint: coating a layer of UV paint on the protective layer through a double-roller coating machine, wherein the coating weight is 10g/m2。
(4) Surface treatment: the film material is subjected to LED lamp tube pre-curing treatment by a matte machine, and the illumination of the LED lamp tube is 15mW/cm2Performing surface matte extinction treatment by using an excimer lamp with wavelength of 172nm and illuminance of 35mW/cm2Obtaining the matte UV coating with the glossiness of 6.7, wherein the nitrogen concentration in the matte machine is 99.99%.
The excimer lamp used in the embodiment has the following characteristics: (1) the spectral wavelength is 172nm and none of the spectraUV-A or UV-B, and does not contain infrared rays; (2) good monochromaticity, concentrated ultraviolet output energy, high ultraviolet output intensity and illuminance up to 170mW/cm2The shooting range is 70 mm; (3) no cooling (nitrogen environment) is needed, and no additional heat effect is generated; (4) the device can be instantly turned on and off at any time without preheating, and the processed workpiece has no obvious heating effect, thereby saving energy and protecting environment; (5) the light intensity can be adjusted by 10-100% in a stepless way according to the process requirement; (6) no infrared ray, short treating time and low temperature treatment.
The spectral wavelength of the LED light used in this example was 395 nm.
Example 2
The embodiment has prepared a mute light panel, and mute light panel is plastic board, decorative layer, wearing layer and mute light UV coating from up down in proper order, and concrete process is:
(1) printing a decorative layer: printing decorative patterns on the plastic board substrate by using a digital printer to form a decorative layer;
(2) roll coating a wear-resistant layer: repeatedly rolling and coating UV paint on the decorative layer to form a wear-resistant layer, wherein the coating weight of the wear-resistant layer is 120g/m2；
(3) Roller coating of UV paint: coating a layer of UV paint on the solidified wear-resistant layer through a double-roller coating machine in a rolling way, wherein the coating weight is 45g/m2。
(4) Surface treatment: the plate is subjected to LED lamp tube pre-curing treatment by a matte machine, and the illumination of the LED lamp tube is 780mW/cm2Performing surface matte extinction treatment by using an excimer lamp with a wavelength of 172nm and an illuminance of 180mW/cm2Obtaining the matte UV coating with the glossiness of 3.4, wherein the nitrogen concentration in the matte machine is 99.99%.
The matte board of the embodiment can be used as a floor.
Example 3
The embodiment has prepared a mute light panel, mute light panel comprises plastic board and facing film, and facing film is PVC substrate layer, decorative layer, protective layer and mute light UV coating from up down in proper order, and specific process is:
(1) printing a decorative layer: printing decorative patterns on the PVC substrate layer by using a digital printer to form a decorative layer;
(2) pressing and pasting a protective layer: hot-pressing a layer of colorless semi-hard polyvinyl chloride film with the thickness of 60 mu m on the decorative layer to form a protective layer;
(3) roller coating of UV paint: coating a layer of UV paint on the protective layer through a double-roller coating machine, wherein the coating weight is 25g/m2。
(4) Surface treatment: the film material is subjected to LED lamp tube pre-curing treatment by a matte machine, and the illumination of the LED lamp tube is 345mW/cm2Performing surface matte treatment by excimer lamp with wavelength of 172nm and illuminance of 115mW/cm2Obtaining the matte UV coating with the glossiness of 2.8, wherein the nitrogen concentration in the matte machine is 99.99%, and the preparation of the decorative film is finished after the surface treatment.
(5) And (3) gluing the plastic board and the facing film through glue to obtain the matte board.
Example 4
This example produced a matte film different from example 1 in that the illuminance of the LED lamp tube was 775mW/cm2The illuminance of the excimer lamp is 190mW/cm2A matte UV coating with a gloss of 3.0 was obtained.
Example 5
This example produced a matte film different from example 1 in that the illuminance of the LED lamp tube was 650mW/cm2The illuminance of the excimer lamp is 170mW/cm2A matte UV coating with a gloss of 4.6 was obtained.
Example 6
In this example, a matte board was prepared, and the difference from example 2 is that the illuminance of the LED lamp tube is 700mW/cm2The illuminance of the excimer lamp is 180mW/cm2A matte UV coating with a gloss of 3.8 was obtained.
Comparative example 1
This comparative example prepared a matte decorative film, which was different from example 1 in that this comparative example did not undergo excimer lamp treatment and an appropriate amount of matting agent was added to the UV paint. The specific process is as follows:
(1) printing a decorative layer: printing decorative patterns on the PVC substrate layer by using a digital printer to form a decorative layer;
(3) pressing and pasting a protective layer: hot-pressing a colorless semi-hard polyvinyl chloride film with the thickness of 60 mu m on the decorative layer;
(4) roller coating of UV paint: coating a layer of UV paint on the protective layer through a double-roller coating machine, wherein the coating weight is 10g/m2The UV paint contains 3% of matting powder by weight.
(5) And (3) curing: and curing the film material through ultraviolet irradiation to obtain the matte decorative film.
Table 1 shows the comparison of the properties of the products of example 1 and comparative example 1.
TABLE 1
| Index (I) | Example 1 | Comparative example 1 |
| Stability of | Stabilization | Instability of the film |
| Yellowing of | Does not turn yellow | Easy yellowing |
| Matte degree | 1.7 | 17.0 |
| Controllable process | Controllable | Difficult to control |
| Uniform matte brightness | Uniformity | Unevenness of |
As can be seen from table 1, the matte film of example 1 has better stability, is not easy to turn yellow, has lower matte degree, is easy to control, and has uniform matte degree, because the matting agent is used, the target texture effect is difficult to achieve by changing the amount, and the problem of non-uniform matte degree caused by insufficient dispersion degree of the matting agent exists, and different matte effects can be obtained by only adjusting the illumination intensity.
Table 2 is additional performance test data for the matte film of example 1.
TABLE 2
It can be seen from table 2 that the other performance tests of the matte film of example 1 all met the standards, meeting the normal use requirements of the decorative film.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The preparation method of the matte UV coating is characterized in that under the nitrogen environment, the UV coating is pre-cured by a UV light source and then subjected to surface treatment by an excimer lamp with the wavelength of 172nm to obtain the matte UV coating.
2. The method of claim 1, wherein an electron beam surface treatment is further performed after the excimer lamp surface treatment.
3. The method according to claim 1, wherein the nitrogen gas has a concentration of 99.9% or more.
4. A matte UV coating, characterized in that it is obtained by the preparation process according to any one of claims 1 to 3.
5. The matte UV coating according to claim 4, wherein the gloss of the matte UV coating is ≤ 10 Gu.
6. A matte finishing, characterized in that the matte finishing comprises the matte UV coating of claim 4, and the matte finishing is a matte film or a matte board.
7. The matte finish of claim 6, wherein the matte film comprises, from bottom to top, a substrate layer, a decorative layer, a protective layer, and the matte UV coating; the substrate layer is made of one of PVC, PP, PET or PETG.
8. The matte finish of claim 6, wherein the matte board comprises, from bottom to top, a substrate sheet, a decorative layer, an abrasion-resistant layer, and the matte UV coating; the substrate board is one of a plastic board, a wooden board, a glass magnesium board or a calcium silicate board.
9. The matte finishing member of claim 8, wherein the abrasion-resistant layer is compounded from at least one of PVC, PP, PET or PETG films, or is built up by roll coating, spray coating or curtain coating UV paint, PU or PUR.
10. The matte finishing of claim 6, wherein the matte board comprises a substrate board and a facing film, the facing film comprises a substrate layer, a decorative layer, a protective layer and the matte UV coating from bottom to top, and the substrate board and the facing film are glued or hot-pressed and compounded; the substrate layer is made of one of PVC, PP, PET or PETG; the substrate board is one of a plastic board, a glass magnesium board or a calcium silicate board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110824141.5A CN113649248A (en) | 2021-07-21 | 2021-07-21 | Matte UV coating, preparation method thereof and matte decorating part containing coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110824141.5A CN113649248A (en) | 2021-07-21 | 2021-07-21 | Matte UV coating, preparation method thereof and matte decorating part containing coating |
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| Publication Number | Publication Date |
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| CN113649248A true CN113649248A (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110824141.5A Pending CN113649248A (en) | 2021-07-21 | 2021-07-21 | Matte UV coating, preparation method thereof and matte decorating part containing coating |
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| Country | Link |
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| CN (1) | CN113649248A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116063920A (en) * | 2023-02-02 | 2023-05-05 | 广东立邦长润发科技材料有限公司 | Excimer nitrogen protection curing UV coating and curing process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057452A (en) * | 2019-12-19 | 2020-04-24 | 江苏靓时新材料科技股份有限公司 | Matte skin-feel UV coating free of flatting powder and preparation and curing methods thereof |
| CN112705440A (en) * | 2020-02-19 | 2021-04-27 | 浙江晶通塑胶有限公司 | Preparation method of super-matte board |
-
2021
- 2021-07-21 CN CN202110824141.5A patent/CN113649248A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057452A (en) * | 2019-12-19 | 2020-04-24 | 江苏靓时新材料科技股份有限公司 | Matte skin-feel UV coating free of flatting powder and preparation and curing methods thereof |
| CN112705440A (en) * | 2020-02-19 | 2021-04-27 | 浙江晶通塑胶有限公司 | Preparation method of super-matte board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116063920A (en) * | 2023-02-02 | 2023-05-05 | 广东立邦长润发科技材料有限公司 | Excimer nitrogen protection curing UV coating and curing process thereof |
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Address after: 528308 2nd floor, No.5, Industrial Avenue, intensive industrial zone, Xiyong village committee, Lunjiao street, Shunde District, Foshan City, Guangdong Province Applicant after: Guangdong Hanqiu Intelligent Equipment Co.,Ltd. Address before: 528308 2nd floor, No.5, Industrial Avenue, intensive industrial zone, Xiyong village committee, Lunjiao street, Shunde District, Foshan City, Guangdong Province Applicant before: FOSHAN SHUNDE PURETE MECHANICAL CO.,LTD. |
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Application publication date: 20211116 |