WO2015084253A1 - We glass business and coating technology - Google Patents
We glass business and coating technology Download PDFInfo
- Publication number
- WO2015084253A1 WO2015084253A1 PCT/SG2013/000508 SG2013000508W WO2015084253A1 WO 2015084253 A1 WO2015084253 A1 WO 2015084253A1 SG 2013000508 W SG2013000508 W SG 2013000508W WO 2015084253 A1 WO2015084253 A1 WO 2015084253A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass
- module
- coating
- process according
- lacquer
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0075—Cleaning of glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/48—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase having a specific function
- C03C2217/485—Pigments
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/31—Pre-treatment
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
Definitions
- the present invention deals with glass coating using a nanoscale structured lacquer composite of inorganic metal oxides, binder solvent-based, inorganic pigment for colour inclusion to product to improve on coating formulation and creating a suitable coating (product) for glass materials to achieve high temperature curing characteristics, self-levelling ability after coating onto glass surface, improvement of glass scratch hardness, reduction of visible infrared heat (both near and far) and induced heat transmission through the product coating, reduction of light permissible light reflectance through the glass materials, improvement of light transmission through the coated glass material as well as the reliability of the coating on the glass material (lifespan). It has a certain viscosity, thickness and dispersion characteristic to be suitable to bond together with the glass surface in order to create a long lasting coating structure with the glass material.
- the product is uniquely identified as a new creation and process to cater for both "on line” and “off line” coating process during actual production as it can be implemented during the glass making process in molten stages till after formation at high temperature, or afterwards when the glass materials are cooled to a certain temperature before coating can take place.
- the chemistry formulation is specially designed to suit both these 2 processes depending on production needs and requirements.
- the description will highlight the various processors or modules needed to complete the "off line” production state of technology together with the product requirement and characteristics as a combinatio is required in order to successfully implement the module to work for the product to be coated and cured using the various modules for the production.
- the "on line” production state of technology will describe and only require 2 indicated modules during the glass making process compared to "off line” which glass materials are already been created and afterwards going through 7 indicated modules to allow coating and curing of the coating onto glass materials.
- Stage 1 The raw glass is loaded on the conveying system by means of the loading module.
- Stage 2 The raw glass will be going through the cleaning module to remove impurities, excessive oil and grease stains and to create high energy / adhesion surface tension to suit chemical coating.
- Stage 3 Special process application for layer coating to allow uniformity coating onto glass material.
- the coating module will apply the special chemical with a controlled thickness to the glass. This process must be done under clean room conditions in order to avoid any kind of particles to contaminate the glass surface before, during and after the coating.
- Stage 4 The coated surface undergo the curing and cooling module to allow full bonding of the coating with the glass material in order to reach a dry and hard condensed state and to achieve a strong bonding with the glass.
- Stage 5 The visual appearance of the coated surface is analyzed by a quality check module using pulse capture data from the camera installed.
- Stage 6 The fully coated and cured glass material is unloaded from the conveying system by means of the unloading module to be packed later.
- the overhead stacker After the PLC system sends a ready signal to the loading module, the overhead stacker approaches the stack of glass sheets on the A-frame structure and applies its suction cups to the first sheet of glass. A depression is created inside of the suction cups, attaching the sheet of glass to the overhead stacker. The overhead stacker then moves with the glass to its position between the rollers of the conveyor. To release the sheet of glass on the roller conveyor, the depression in the suction cups is cancelled. After the sheet of glass has moved to the next station, the roller conveyor over the overhead stacker is free and a new cycle of loading can begin.
- the glass is rinsed in the first section of the machine to flush away the biggest particles and to wet the glass for the next step. Then the glass goes through a scrubbing section where rotating round scrubber fully polish its top surface in a sinusoidal movement. After that the glass goes through three sections where cylindrical brushes finish to clean the surface. Finally the glass is dried by means of air-jets placed in a way to optimize the drying even at high transport speeds.
- the coating module must be applied on the glass as a wet film with a controlled thickness. This is done by a special coating device. This process needslo be done in a controlled environment to avoid any deposition of foreign particles on the glass surface before, during and after the coating. A clean room must enclose the area between washing (2) and curing (4) to achieve this.
- the curing is done by heating the coating and the glass in an oven. Therefore the coated glass is moved in a heating tunnel where it is dried in a controlled process. After that the glass needs to be cooled down to room temperature in a controlled process, so that it can be handled and packed after the final quality check. This is done in a cooling tunnel where a forced air circulation by means of ventilators cools the coated sheets of glass down.
- a spectrophotometer is moved in cross direction to the glass taking measures and comparing these to a predefined range of values. If the measure gets out of this predefined range, an alarm is given through the PLC communication system to the operator.
- Another overhead stacker placed between the rollers of the last roller conveyor awaits a sheet of glass.
- the sheet arriving is stopped in the accurate position, approached smoothly from the bottom by the overhead stacker which applies its suction cups to it.
- the ensemble moves to a quasi-vertical position where the glass sheet is released on a dedicated A-frame structure. There the glass is ready to be packed.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention deals with glass coating using a nanoscale structured lacquer composite of inorganic metal oxides, binder solvent-based, inorganic pigment for colour inclusion to product to improve on coating formulation and creating a suitable coating for glass materials to achieve high temperature curing characteristics.
Description
WE Glass Business and Coating Technology DESCRIPTION OF THE INVENTION
The present invention deals with glass coating using a nanoscale structured lacquer composite of inorganic metal oxides, binder solvent-based, inorganic pigment for colour inclusion to product to improve on coating formulation and creating a suitable coating (product) for glass materials to achieve high temperature curing characteristics, self-levelling ability after coating onto glass surface, improvement of glass scratch hardness, reduction of visible infrared heat (both near and far) and induced heat transmission through the product coating, reduction of light permissible light reflectance through the glass materials, improvement of light transmission through the coated glass material as well as the reliability of the coating on the glass material (lifespan). It has a certain viscosity, thickness and dispersion characteristic to be suitable to bond together with the glass surface in order to create a long lasting coating structure with the glass material.
The product is uniquely identified as a new creation and process to cater for both "on line" and "off line" coating process during actual production as it can be implemented during the glass making process in molten stages till after formation at high temperature, or afterwards when the glass materials are cooled to a certain temperature before coating can take place. The chemistry formulation is specially designed to suit both these 2 processes depending on production needs and requirements.
The description will highlight the various processors or modules needed to complete the "off line" production state of technology together with the product requirement and characteristics as a combinatio is required in order to successfully implement the module to work for the product to be coated and cured using the various modules for the production. The "on line" production state of technology will describe and only require 2 indicated modules during the glass making process compared to "off line" which glass materials are already been created and afterwards going through 7 indicated modules to allow coating and curing of the coating onto glass materials.
Essentially the production process involves few stages.
Stage 1 : The raw glass is loaded on the conveying system by means of the loading module.
Stage 2: The raw glass will be going through the cleaning module to remove impurities, excessive oil and grease stains and to create high energy / adhesion surface tension to suit chemical coating.
Stage 3: Special process application for layer coating to allow uniformity coating onto glass material.
The coating module will apply the special chemical with a controlled thickness to the glass. This process must be done under clean room conditions in order to avoid any kind of particles to contaminate the glass surface before, during and after the coating.
Stage 4: The coated surface undergo the curing and cooling module to allow full bonding of the coating with the glass material in order to reach a dry and hard condensed state and to achieve a strong bonding with the glass.
Stage 5: The visual appearance of the coated surface is analyzed by a quality check module using pulse capture data from the camera installed.
Stage 6 The fully coated and cured glass material is unloaded from the conveying system by means of the unloading module to be packed later.
1. The loading module
It is composed of a roller conveyor and an overhead stacker, which moves perpendicular to the production line between a dedicated A-frame structure and the conveyor. Glass is stored on the A-frame structure with an angle of 15° to the vertical.
After the PLC system sends a ready signal to the loading module, the overhead stacker approaches the stack of glass sheets on the A-frame structure and applies its suction cups to the first sheet of glass. A depression is created inside of the suction cups, attaching the sheet of glass to the overhead stacker. The overhead stacker then moves with the glass to its position between the rollers of the conveyor. To release the sheet of glass on the roller conveyor, the depression in the suction cups is cancelled. After the sheet of glass has moved to the next station, the roller conveyor over the overhead stacker is free and a new cycle of loading can begin.
2. The washing module
The glass is rinsed in the first section of the machine to flush away the biggest particles and to wet the glass for the next step. Then the glass goes through a scrubbing section where rotating round scrubber fully polish its top surface in a sinusoidal movement. After that the glass goes through three sections where cylindrical brushes finish to clean the surface. Finally the glass is dried by means of air-jets placed in a way to optimize the drying even at high transport speeds.
3. The coating module
The coating must be applied on the glass as a wet film with a controlled thickness. This is done by a special coating device. This process needslo be done in a controlled environment to avoid any deposition of foreign particles on the glass surface before, during and after the coating. A clean room must enclose the area between washing (2) and curing (4) to achieve this.
4. The curing and cooling module
The curing is done by heating the coating and the glass in an oven. Therefore the coated glass is moved in a heating tunnel where it is dried in a controlled process. After that the glass needs to be cooled down to room temperature in a controlled process, so that it can be handled and packed after the final quality check. This is done in a cooling tunnel where a forced air circulation by means of ventilators cools the coated sheets of glass down.
5. The quality control module
A spectrophotometer is moved in cross direction to the glass taking measures and comparing these to a predefined range of values. If the measure gets out of this predefined range, an alarm is given through the PLC communication system to the operator.
6. The unloading module
Another overhead stacker placed between the rollers of the last roller conveyor awaits a sheet of glass. The sheet arriving is stopped in the accurate position, approached smoothly from the bottom by the overhead stacker which applies its suction cups to it. Once a under-pressure has been generated between the suction cups and the glass, thus fixing the glass sheet to the overhead stacker, the ensemble moves to a quasi-vertical position where the glass sheet is released on a dedicated A-frame structure. There the glass is ready to be packed.
Claims
1. Process for coating a nanotechnology-based lacquer onto glazing comprising:
a. A glass loading module enhancing productivity.
b. A glass cleaning module able to obtain an optimum surface energy of the glass surface.
c. A pre-metered wet film application module applying an optimum amount of coating chemical onto the glass, thus reducing drastically wastage in comparison to other coating methods.
d. A customized clean-room environment of a class avoiding the deposition / redisposition of contaminant onto the cleaned glass surface.
e. A heat curing module, with a specific heating profile to cure and densify the wet film in order to reach enhanced spectral properties of the glass equipped with the said coating material.
f. A cooling module, operating according to the specific requirement of the coated glass and the glass itself, allowing its further processing by automotive and architectural glazing processors.
g. An unloading module to pack the coated glass on a crate for direct transport.
2. Process according to claim 1, characterized in that the glass size to be coated width will be maximum 3300 mm, length maximum 9000 mm, thickness maximum 19 mm.
3. Process according to claim 1, characterized in that the glass will go through a cleaning module prior to coating to reach an optimal dried surface.
4. Process according to claim 1, characterized in that the nanotechnology- based lacquer is derived from the sol-gel process and furthermore characterized in that:
a. The said lacquer solvent or water or water/solvent based.
b. The said lacquer comprises a dispersion of nanoparticles made of mixed metal oxides and having an average size distribution of less than 150 nm. c. The said lacquer has selective transmissive, reflective and absorbing spectral properties.
d. The lacquer is transparent, clear or coloured.
5. Process according to claims 1 and 4, characterized in that the wet film once applied onto the glass surface . has to be pre-dried at ambient temperature then cured by heat according to a specific heating profile at a temperature above 200°C and below 600°C.
6. Process according to claims 1 and 4, characterized in that the cured coated glass has to be cooled down by an air-cooling module according to a specific profile until it reaches a temperature of below 60°C before reaching the quality control module.
7. Process according to claims 1 and 5, characterized in that, the quality control will be based on a raster spectrophotometric measurement of the coated glass panels which will assess the consistency of the coated surface.
8. The glass product obtained via the process claimed in 1. is meant to improve the green efficiency of glazing destined to the architectural and the automotive businesses by reducing the outdoor towards indoor heat transmission.
9. The glass product obtained via the process claimed in 1 and 6 is meant to provide versatile glazing design possibilities to architectural project developers.
10. Process according to claim 1 , characterized in that the whole process from the outlet of the cleaning module to the inlet of the curing module will take place in to a clean-room controlled environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SG2013/000508 WO2015084253A1 (en) | 2013-12-02 | 2013-12-02 | We glass business and coating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SG2013/000508 WO2015084253A1 (en) | 2013-12-02 | 2013-12-02 | We glass business and coating technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015084253A1 true WO2015084253A1 (en) | 2015-06-11 |
Family
ID=53273849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SG2013/000508 Ceased WO2015084253A1 (en) | 2013-12-02 | 2013-12-02 | We glass business and coating technology |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2015084253A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819878A (en) * | 2016-03-24 | 2016-08-03 | 西安建筑科技大学 | Corundum-spinel light-weight refractory material and preparation method thereof |
| CN108726579A (en) * | 2018-06-28 | 2018-11-02 | 沈阳工业大学 | A kind of nucleocapsid cobalt titanate porous material and preparation method thereof |
| US10921492B2 (en) | 2018-01-09 | 2021-02-16 | Corning Incorporated | Coated articles with light-altering features and methods for the production thereof |
| US11940593B2 (en) | 2020-07-09 | 2024-03-26 | Corning Incorporated | Display articles with diffractive, antiglare surfaces and methods of making the same |
| US12195384B2 (en) | 2013-05-07 | 2025-01-14 | Corning Incorporated | Scratch-resistant laminates with retained optical properties |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0565494A1 (en) * | 1992-04-06 | 1993-10-13 | AXIVETRO S.r.l. | Method for the figurative and chromatic decoration of flat glass and articles of manufacture made thereby |
| WO2003000808A1 (en) * | 2001-06-20 | 2003-01-03 | Röhm GmbH & Co. KG | Method for producing moulded bodies comprising an electroconductive coating and moulded bodies having one such coating |
| EP1947141A1 (en) * | 2007-01-18 | 2008-07-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Stabilised suspensions of anorganic particles |
| DE102007003622A1 (en) * | 2007-01-18 | 2008-07-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Suspension of silicon dioxide particles in polymerizable external phase, for use e.g. as lacquer, contains organic acid in external phase as stabilizer against agglomeration in presence of isocyanate |
| CN101993203A (en) * | 2009-08-28 | 2011-03-30 | 王广武 | Electron beam radiation curing film glass and manufacturing method thereof |
| KR101088850B1 (en) * | 2010-11-11 | 2011-12-06 | 주식회사 대도유리 | Multipurpose glass board used for parish or experiment and its manufacturing method |
-
2013
- 2013-12-02 WO PCT/SG2013/000508 patent/WO2015084253A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0565494A1 (en) * | 1992-04-06 | 1993-10-13 | AXIVETRO S.r.l. | Method for the figurative and chromatic decoration of flat glass and articles of manufacture made thereby |
| WO2003000808A1 (en) * | 2001-06-20 | 2003-01-03 | Röhm GmbH & Co. KG | Method for producing moulded bodies comprising an electroconductive coating and moulded bodies having one such coating |
| EP1947141A1 (en) * | 2007-01-18 | 2008-07-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Stabilised suspensions of anorganic particles |
| DE102007003622A1 (en) * | 2007-01-18 | 2008-07-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Suspension of silicon dioxide particles in polymerizable external phase, for use e.g. as lacquer, contains organic acid in external phase as stabilizer against agglomeration in presence of isocyanate |
| CN101993203A (en) * | 2009-08-28 | 2011-03-30 | 王广武 | Electron beam radiation curing film glass and manufacturing method thereof |
| KR101088850B1 (en) * | 2010-11-11 | 2011-12-06 | 주식회사 대도유리 | Multipurpose glass board used for parish or experiment and its manufacturing method |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12195384B2 (en) | 2013-05-07 | 2025-01-14 | Corning Incorporated | Scratch-resistant laminates with retained optical properties |
| CN105819878A (en) * | 2016-03-24 | 2016-08-03 | 西安建筑科技大学 | Corundum-spinel light-weight refractory material and preparation method thereof |
| US10921492B2 (en) | 2018-01-09 | 2021-02-16 | Corning Incorporated | Coated articles with light-altering features and methods for the production thereof |
| US12019209B2 (en) | 2018-01-09 | 2024-06-25 | Corning Incorporated | Coated articles with light-altering features and methods for the production thereof |
| CN108726579A (en) * | 2018-06-28 | 2018-11-02 | 沈阳工业大学 | A kind of nucleocapsid cobalt titanate porous material and preparation method thereof |
| US11940593B2 (en) | 2020-07-09 | 2024-03-26 | Corning Incorporated | Display articles with diffractive, antiglare surfaces and methods of making the same |
| US11971519B2 (en) | 2020-07-09 | 2024-04-30 | Corning Incorporated | Display articles with antiglare surfaces and thin, durable antireflection coatings |
| US11977206B2 (en) | 2020-07-09 | 2024-05-07 | Corning Incorporated | Display articles with diffractive, antiglare surfaces and thin, durable antireflection coatings |
| US12147009B2 (en) | 2020-07-09 | 2024-11-19 | Corning Incorporated | Textured region to reduce specular reflectance including a low refractive index substrate with higher elevated surfaces and lower elevated surfaces and a high refractive index material disposed on the lower elevated surfaces |
| US12352924B2 (en) | 2020-07-09 | 2025-07-08 | Corning Incorporated | Display articles with diffractive, antiglare surfaces and methods of making the same |
| US12360290B2 (en) | 2020-07-09 | 2025-07-15 | Corning Incorporated | Display articles with antiglare surfaces and thin, durable antireflection coatings |
| US12386101B2 (en) | 2020-07-09 | 2025-08-12 | Corning Incorporated | Textured region of a substrate to reduce specular reflectance incorporating surface features with an elliptical perimeter or segments thereof, and method of making the same |
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