CN114392906A - Environment-friendly film hardening UV coating process - Google Patents
Environment-friendly film hardening UV coating process Download PDFInfo
- Publication number
- CN114392906A CN114392906A CN202210115888.8A CN202210115888A CN114392906A CN 114392906 A CN114392906 A CN 114392906A CN 202210115888 A CN202210115888 A CN 202210115888A CN 114392906 A CN114392906 A CN 114392906A
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- Prior art keywords
- film
- coating
- fixed shaft
- hardening liquid
- shaft
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- 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.)
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- 238000000576 coating method Methods 0.000 title claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 239000011248 coating agent Substances 0.000 claims abstract description 46
- 238000004804 winding Methods 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052753 mercury Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007761 roller coating Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007921 spray 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
- B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an environment-friendly film hardening UV coating process, which mainly comprises the following steps: s1, performing corona or coating treatment on the film to be treated to increase the surface adhesion; s2, guiding the film processed in the step S1 into a two-roll coater through an unwinding shaft, a pressing roller and a winding shaft; s3, injecting hardening liquid on the two-roll coater; s4, arranging an ultraviolet light source below the fixed shaft, forming a coating with a set thickness between the fixed shaft and the film by the hardening liquid when the film and the hardening liquid pass through the fixed shaft in the two-roller type coating machine, and forming the hardened coating on the surface of the film after the film and the hardening liquid are cured by the ultraviolet light source; and S5, separating the cured film from the fixed shaft under the traction action of the winding roller and winding the film on the winding roller. Compared with the prior art, the invention has the advantages that: the production process has the advantages of simple production equipment, small occupied area, low investment, low energy consumption and no VOC emission.
Description
Technical Field
The invention relates to the technical field of film coating, in particular to an environment-friendly film hardening UV coating process.
Background
The polymer film is widely applied, but the surface of the film is always easy to scratch, such as a protective film adhered to the surface of a mobile phone, a solar film adhered to automobile glass and the like, and the surface of the film needs to be hardened. With the hardened film, the application is wider. The traditional hardening processing mode is generally roller coating or spray coating, and the roller coating is generally micro-gravure coating or 5-roller coating. The spray coating is typically a pneumatic spray gun. The coating method generally uses a solvent to dilute the hardening liquid to a solid content below 30%. A large amount of solvent is required. After coating, the coating needs to be put into an oven for baking to volatilize the solvent, and a great amount of energy is needed for heating the oven. And curing the hardening liquid by using an ultraviolet lamp after drying.
Disclosure of Invention
The invention aims to overcome the technical defects and provide an environment-friendly film hardening UV coating process.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: an environment-friendly film hardening UV coating process mainly comprises the following steps:
s1, performing corona or coating treatment on the film to be treated to increase the surface adhesion;
s2, guiding the film processed in the step S1 into a two-roll coater through an unwinding shaft, a pressing roller and a winding shaft, wherein the two-roll coater comprises a fixed shaft and an adjusting shaft;
s3, injecting hardening liquid on the two-roller type coating machine to enable the hardening liquid to drop at the middle position of the fixed shaft and the adjusting shaft, and arranging baffles at two sides of the film to prevent the hardening liquid from overflowing;
s4, arranging an ultraviolet light source below the fixed shaft, forming a coating with a set thickness between the fixed shaft and the film by the hardening liquid when the film and the hardening liquid pass through the fixed shaft in the two-roller type coating machine, and curing the coating on the surface of the film after the coating is cured by the ultraviolet light source to form a hardened coating;
and S5, separating the cured film from the fixed shaft under the traction action of the winding shaft and winding the film on the winding roller.
As a modification, the diameter of the fixed shaft in the step S1 is 150-500 mm.
As a modification, the hardening liquid in step S3 is a hardening liquid with 100% solid content, and the hardening liquid is injected in a funnel type or through a metering pump.
As an improvement, the thickness of the hardened coating in S4 is 2-10 um.
As an improvement, the wave band of the ultraviolet light source is 365-400 nm.
As a modification, the fixed shaft and the adjusting shaft in step S2 are chrome plating mirror rollers, and the adjusting shaft is a roller with certain texture.
Compared with the prior art, the invention has the advantages that: the production process has the advantages of simple production equipment, small occupied area, low investment and low energy consumption, does not need to be diluted by a solvent when hardening liquid is coated, can use 100 percent of hardening liquid, does not volatilize VOC, and is more environment-friendly. Is particularly suitable for the production of film products which are not solvent-resistant, and is beneficial to popularization and use.
Drawings
FIG. 1 is a schematic diagram of the principle structure of an environment-friendly UV film hardening coating process of the present invention.
Detailed Description
Example 1
An environment-friendly film hardening UV coating process mainly comprises the following steps:
s1, performing corona or coating treatment on the film to be treated to increase the surface adhesion;
s2, guiding the film processed in the step S1 into a two-roll coater through an unwinding shaft, a pressing roller and a winding shaft, wherein the two-roll coater comprises a fixed shaft and an adjusting shaft;
s3, injecting hardening liquid on the two-roller type coating machine to enable the hardening liquid to drop at the middle position of the fixed shaft and the adjusting shaft, and arranging baffles at two sides of the film to prevent the hardening liquid from overflowing;
s4, arranging an ultraviolet light source below the fixed shaft, forming a coating with a set thickness between the fixed shaft and the film by the hardening liquid when the film and the hardening liquid pass through the fixed shaft in the two-roller type coating machine, and curing the coating on the surface of the film after the coating is cured by the ultraviolet light source to form a hardened coating;
and S5, separating the cured film from the fixed shaft under the traction action and winding the film on a winding shaft.
The diameter of the fixed shaft in the step S1 is 150 mm.
The hardening liquid in the step S3 is 100% solid hardening liquid, and the hardening liquid is injected in a funnel type or through a metering pump.
The thickness of the hardened coating in the step S4 is 4 um.
The wave band of the ultraviolet light source is 395 nm.
The ultraviolet light source is a UVLED light source.
The fixed shaft and the adjusting shaft in the step S2 are chrome plating mirror surface rollers, and the adjusting shaft is a roller with certain texture
Example 2
An environment-friendly film hardening UV coating process mainly comprises the following steps:
s1, performing corona or coating treatment on the film to be treated to increase the surface adhesion;
s2, guiding the film processed in the step S1 into a two-roll coater through an unwinding shaft, a pressing roller and a winding shaft, wherein the two-roll coater comprises a fixed shaft and an adjusting shaft;
s3, injecting hardening liquid on the two-roller type coating machine to enable the hardening liquid to drop at the middle position of the fixed shaft and the adjusting shaft, and arranging baffles at two sides of the film to prevent the hardening liquid from overflowing;
s4, arranging an ultraviolet light source below the fixed shaft, forming a coating with a set thickness between the fixed shaft and the film by the hardening liquid when the film and the hardening liquid pass through the fixed shaft in the two-roller type coating machine, and curing the coating on the surface of the film after the coating is cured by the ultraviolet light source to form a hardened coating;
and S5, separating the cured film from the fixed shaft under the traction action and winding the film on a winding shaft.
The diameter of the fixed shaft in the step S1 is 300 mm.
The hardening liquid in the step S3 is 100% solid hardening liquid, and the hardening liquid is injected in a funnel type or through a metering pump.
The thickness of the hardened coating in the step S4 is 3 um.
The wave band of the ultraviolet light source is 365 nm.
The ultraviolet light source is a UVLED light source.
The fixed shaft and the adjusting shaft in the step S2 are chrome plating mirror surface rollers, and the adjusting shaft is a roller with certain texture
Example 3
An environment-friendly film hardening UV coating process mainly comprises the following steps:
s1, performing corona or coating treatment on the film to be treated to increase the surface adhesion;
s2, guiding the film processed in the step S1 into a two-roll coater through an unwinding shaft, a pressing roller and a winding shaft, wherein the two-roll coater comprises a fixed shaft and an adjusting shaft;
s3, injecting hardening liquid on the two-roller type coating machine to enable the hardening liquid to drop at the middle position of the fixed shaft and the adjusting shaft, and arranging baffles at two sides of the film to prevent the hardening liquid from overflowing;
s4, arranging an ultraviolet light source below the fixed shaft, forming a coating with a set thickness between the fixed shaft and the film by the hardening liquid when the film and the hardening liquid pass through the fixed shaft in the two-roller type coating machine, and curing the coating on the surface of the film after the coating is cured by the ultraviolet light source to form a hardened coating;
and S5, separating the cured film from the fixed shaft under the traction action of the winding roller and winding the film on the winding roller.
The diameter of the fixed shaft in the step S1 is 500 mm.
The hardening liquid in the step S3 is 100% solid hardening liquid, and the hardening liquid is injected by funnel-type fluid injection or by a metering pump.
The thickness of the hardened coating in the step S4 is 5 um.
The wave band of the ultraviolet light source is 365-400 nm.
The ultraviolet light source is a high-pressure mercury lamp.
The fixed shaft and the adjusting shaft in the step S2 are chrome plating mirror surface rollers, and the adjusting shaft is a roller with certain texture
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. An environment-friendly film hardening UV coating process is characterized by mainly comprising the following steps:
s1, performing corona or coating treatment on the film to be treated to increase the surface adhesion;
s2, guiding the film processed in the step S1 into a two-roll coater through an unwinding shaft, a pressing roller and a winding shaft, wherein the two-roll coater comprises a fixed shaft and an adjusting shaft;
s3, injecting hardening liquid on the two-roller type coating machine to enable the hardening liquid to drop at the middle position of the fixed shaft and the adjusting shaft, and arranging baffles at two sides of the film to prevent the hardening liquid from overflowing;
s4, arranging an ultraviolet light source below the fixed shaft, forming a coating with a set thickness between the fixed shaft and the film by the hardening liquid when the film and the hardening liquid pass through the fixed shaft in the two-roller type coating machine, and curing the coating on the surface of the film after the coating is cured by the ultraviolet light source to form a hardened coating;
and S5, separating the cured film from the fixed shaft under the traction action and winding the film on a winding shaft.
2. The process of claim 1, wherein the diameter of the fixed shaft in step S1 is 150-500 mm.
3. The process of claim 1, wherein the hardening liquid in step S3 is 100% solid hardening liquid, and the hardening liquid is injected by funnel injection or by a metering pump.
4. The process of claim 1, wherein the thickness of the hardened coating in step S4 is 2-10 um.
5. The process of claim 1, wherein the wavelength range of the UV light source is 365-400 nm.
6. The process of claim 1, wherein the ultraviolet light source is a high-pressure mercury lamp, an inorganic lamp or a UVLED light source.
7. The process of claim 1, wherein the fixed shaft and the adjusting shaft in step S2 are chrome-plated mirror rollers, and the adjusting shaft is a textured roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210115888.8A CN114392906A (en) | 2022-02-07 | 2022-02-07 | Environment-friendly film hardening UV coating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210115888.8A CN114392906A (en) | 2022-02-07 | 2022-02-07 | Environment-friendly film hardening UV coating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114392906A true CN114392906A (en) | 2022-04-26 |
Family
ID=81231878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210115888.8A Pending CN114392906A (en) | 2022-02-07 | 2022-02-07 | Environment-friendly film hardening UV coating process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114392906A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007105647A (en) * | 2005-10-14 | 2007-04-26 | Hitachi Maxell Ltd | Base film, and method and apparatus for manufacturing base film |
| JP2008279438A (en) * | 2007-04-10 | 2008-11-20 | Hitachi Maxell Ltd | Laminated film production method and production apparatus |
| CN102520465A (en) * | 2011-11-10 | 2012-06-27 | 中国乐凯胶片集团公司 | Preparation method of optical film |
| CN103869387A (en) * | 2014-03-27 | 2014-06-18 | 宁波惠之星新材料科技有限公司 | Ultraviolet light curing optic hardened film, preparing device thereof and preparing method thereof |
| CN203874964U (en) * | 2014-03-28 | 2014-10-15 | 宁波惠之星新材料科技有限公司 | Device used for preventing coating liquid of ultraviolet (UV) light curing coining system from overflowing |
| CN105425323A (en) * | 2015-12-17 | 2016-03-23 | 宁波惠之星新材料科技有限公司 | Impressing roller and coating equipment for preparing ultraviolet curing coating |
| CN210935627U (en) * | 2019-08-12 | 2020-07-07 | 苏州普莱特环保新材料有限公司 | Roller coating production line for heat-insulating decorative plate |
-
2022
- 2022-02-07 CN CN202210115888.8A patent/CN114392906A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007105647A (en) * | 2005-10-14 | 2007-04-26 | Hitachi Maxell Ltd | Base film, and method and apparatus for manufacturing base film |
| JP2008279438A (en) * | 2007-04-10 | 2008-11-20 | Hitachi Maxell Ltd | Laminated film production method and production apparatus |
| CN102520465A (en) * | 2011-11-10 | 2012-06-27 | 中国乐凯胶片集团公司 | Preparation method of optical film |
| CN103869387A (en) * | 2014-03-27 | 2014-06-18 | 宁波惠之星新材料科技有限公司 | Ultraviolet light curing optic hardened film, preparing device thereof and preparing method thereof |
| CN203874964U (en) * | 2014-03-28 | 2014-10-15 | 宁波惠之星新材料科技有限公司 | Device used for preventing coating liquid of ultraviolet (UV) light curing coining system from overflowing |
| CN105425323A (en) * | 2015-12-17 | 2016-03-23 | 宁波惠之星新材料科技有限公司 | Impressing roller and coating equipment for preparing ultraviolet curing coating |
| CN210935627U (en) * | 2019-08-12 | 2020-07-07 | 苏州普莱特环保新材料有限公司 | Roller coating production line for heat-insulating decorative plate |
Non-Patent Citations (1)
| Title |
|---|
| 江谷等: "《软包装印刷及后加工技术》", 30 September 2007 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20220426 |