CN115160942A - Optical product protective film and production method thereof - Google Patents
Optical product protective film and production method thereof Download PDFInfo
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- CN115160942A CN115160942A CN202210727451.XA CN202210727451A CN115160942A CN 115160942 A CN115160942 A CN 115160942A CN 202210727451 A CN202210727451 A CN 202210727451A CN 115160942 A CN115160942 A CN 115160942A
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- optical
- coating
- protective film
- producing
- pet
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- 230000001681 protective effect Effects 0.000 title claims abstract description 39
- 230000003287 optical effect Effects 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims description 40
- 238000000576 coating method Methods 0.000 claims description 40
- 239000003292 glue Substances 0.000 claims description 25
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- 238000001723 curing Methods 0.000 claims description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 8
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000012452 mother liquor Substances 0.000 claims description 3
- 239000010413 mother solution Substances 0.000 claims description 3
- 238000003847 radiation curing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 1
- 239000010408 film Substances 0.000 abstract description 34
- 238000002834 transmittance Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 8
- 239000012788 optical film Substances 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 25
- 239000005020 polyethylene terephthalate Substances 0.000 description 25
- 239000010410 layer Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 6
- 238000004506 ultrasonic cleaning Methods 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- BPCXHCSZMTWUBW-UHFFFAOYSA-N triethoxy(1,1,2,2,3,3,4,4,5,5,8,8,8-tridecafluorooctyl)silane Chemical compound CCO[Si](OCC)(OCC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F BPCXHCSZMTWUBW-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides an optical product protective film and a production method thereof. According to the optical product protective film and the production method thereof, the protective film can have the visible light transmittance of more than 95 percent even after being laminated in double layers, is used for replacing the original scheme of laminating double layers of conventional protective films, has no influence on the quality inspection process, and integrally improves various problems encountered in the transportation of the optical film.
Description
Technical Field
The invention relates to the field of optical products, in particular to an optical product protective film and a production method thereof.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
With the rapid development of display technologies, people have higher and higher requirements on the texture of pictures of display screens, and reflect to the material and the appearance of optical screens, the material is required to be more wear-resistant, have higher transmittance and lower haze, and the appearance cannot have any foreign points, scratches, fingerprint prints and the like, so that the optical screens or glass used in screen assembly, high-transmittance PET (polyethylene terephthalate) or PI (polyimide) films (optical films for short) are required to be protected by attaching a protective film in the transportation and quality inspection processes.
Because of high modularization of modern industry, clear division of labor in upstream and downstream, participation of a plurality of manufacturers from raw materials to final assembly of a screen relates to a plurality of processes, collision and scratch are difficult to avoid in the transportation and treatment processes, and the impact on the performance of the protective film on the surface of the optical material is influenced, such as damage, scratch or residual glue left on the optical film, and the like, the conventional single-layer protective film can not meet the transportation and quality inspection requirements in the whole process.
Some manufacturers use thicker or more than two layers of protective films to solve the problem, but since the thicker or stacked protective films cause optical scattering, diffraction, etc., the optical transmittance is usually 93-94%, and the quality inspection of the optical material is usually performed under the condition of still covering the protective film, the transmittance of the optical material with the protective film is required to be more than 95%. These optical losses cause errors in the yield determination of optical materials, which results in manufacturer losses, and thus the application difficulty cannot be completely solved.
It should be noted that the above description of the background art is provided for the sake of clarity and complete description of the technical solutions of the present invention, and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the invention.
Disclosure of Invention
The invention aims to provide an optical product protective film and a production method thereof.
In order to solve the above technical problems, the present invention provides a protective film for an optical product, which comprises a PET base layer, an AR coating layer coated on a surface of the PET base layer, and an optical-grade glue layer coated on another surface of the PET base layer.
Preferably, the PET base layer is Toray U48 with the thickness of 50um, the AR coating is fluorine-silicon modified resin, the optical-grade glue layer is acrylic acid system glue, the kinematic viscosity is 30-50 cPs, and the dry glue thickness is 15-25 um.
The application also provides a production method of the optical product protective film, wherein an AR coating is coated on the surface of the PET base layer, an optical glue layer is coated on the other surface of the PET base layer, the AR coating is fluorine-silicon modified resin, the optical glue layer is acrylic acid system glue, the kinematic viscosity is 30-50 cPs, and the dry glue thickness is 15-25 um.
Preferably, the production method of the AR coating comprises the following steps of preparing a solution of TEOS and absolute ethyl alcohol in a molar ratio of 1.
Preferably, the production method of the AR coating further comprises the steps of carrying out deionized water ultrasonic cleaning on the PET base layer, carrying out absolute ethyl alcohol ultrasonic cleaning, carrying out secondary deionized water ultrasonic cleaning, and drying before coating the film mother liquor.
Preferably, the coating mode of the mother solution for coating the film on the surface of the PET base layer is micro-concave coating, a 200-mesh micro-concave roller is used, the curing mode is UV radiation, the radiation energy is 150-300 mJ/C square meter, and the linear velocity is 15-30M/min.
Preferably, the production method of the AR coating further includes coating the film mother liquor on the surface of the PET base layer to form an initial AR coating, sequentially mixing fluorosilicone, absolute ethyl alcohol and deionized water according to a ratio of 3.
Preferably, the optical-grade glue layer is coated by a scraper or slit extrusion, the curing method is thermal radiation curing, the temperature is 90-110 ℃, the linear speed is 15-30M/min, and the curing conditions are as follows: 40 ℃ and 72H.
By means of the technical scheme, the invention has the following beneficial effects:
according to the optical product protective film and the production method thereof, the protective film can have the visible light transmittance of more than 95% as a whole even after double layers are stacked, so that the protective film is used for replacing the original scheme of stacking double layers of conventional protective films, meanwhile, the quality inspection process is not influenced, and various problems encountered in the transportation of the optical film are improved integrally.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The optical PET base layer is 50um Toray U48; the AR coating is fluorine-silicon modified resin, and the preparation method is based on the principle that an alkoxide hydrolysis type sol-gel method is used, tetraethoxysilane (TEOS) is hydrolyzed in an acid environment to generate a large number of silicon hydroxyl groups (Si-OH), and polycondensation reaction occurs among the silicon hydroxyl groups, between the silicon hydroxyl groups and a TEOS body and between fluorine-containing silicon hydroxyl groups and TEOS body.
The specific method comprises the following steps: preparing a TEOS/absolute ethyl alcohol molar ratio of 1:12 for 10 minutes, quickly adding deionized water with a TEOS molar ratio of 1-4 to 1.
And then sequentially carrying out deionized water ultrasonic cleaning, absolute ethyl alcohol ultrasonic cleaning and second deionized water ultrasonic cleaning for 15 minutes respectively on the optical-grade PET, and then drying for more than 30 minutes at 60 ℃.
And then, coating a mother solution coating on the surface of the optical-grade PET, wherein the coating mode is micro-concave coating, a 200-mesh micro-concave roller is selected, the curing mode is UV radiation, the energy is 150-300 mJ/c square meter, preferably 200mJ/c square meter, and the linear velocity is 15-30M/min, preferably 20M/min.
A PET optical film with an initial AR coating was obtained, followed by a coating of fluorosilicone (ex: dynasylan F8261 tridecafluorooctyltriethoxysilane), absolute ethanol and deionized water at a 3: and (3) mixing the components in a ratio of 50. Thus, a PET optical film substrate having low reflection characteristics can be obtained.
Then, coating optical-grade glue on the PET substrate by using another coating mode, wherein the optical-grade glue is an acrylic acid system, the kinematic viscosity of the optical-grade glue is 30-50 cPs, the dry glue thickness is 15-25 um, preferably 20um, a pure glue film is formed, the coating mode is scraper or slit extrusion, preferably slit extrusion, the curing mode is thermal radiation curing, the temperature is 90-110 ℃, preferably 100 ℃, the linear speed is 15-30M/min, preferably 20M/min, and the curing condition is as follows: 40 ℃ and 72H.
By the method, the protective film product with the special AR coating coated with the fluorine-silicon reinforced layer on the surface and the optical acrylic glue on the back surface can be obtained. The product has excellent optical transmittance, and by comparison, the light transmittance of the protective film product with the special AR coating is improved to a certain extent:
| sample (I) | Light transmittance |
| Conventional optical-grade PET protective film | 90-91％ |
| Single SiO 2 2 Coating PET protective film | 91-93％ |
| SiO 2 Fluorine-added silicon reinforced double-coating PET (polyethylene terephthalate) protective film | 95-97％ |
| Two-part bonded conventional optical-grade PET (polyethylene terephthalate) protective film | 83-87％ |
| Two-part laminated double-coating PET (polyethylene terephthalate) protective film | 95-95.5％ |
Therefore, after the double-layer lamination of the protective film with the AR coating is carried out, the conventional light transmittance of 91% is still achieved, the actual optical light transmittance of more than 95% can be achieved, the light transmittance is better than that of a conventional single-layer optical protective film, the basic requirements of protection of various optical elements are met, a better surface protection effect can be brought, and the protective film is an effective solution for pain spots with incomplete light transmittance and protection effects.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. The optical product protective film is characterized by comprising a PET base layer, an AR coating coated on the surface of the PET base layer and an optical-grade glue layer coated on the other surface of the PET base layer.
2. The optical product protective film according to claim 1, wherein the PET substrate is Toray U48 with a thickness of 50um, the AR coating is fluorine-silicon modified resin, the optical-grade glue layer is acrylic glue, the kinematic viscosity is 30-50 cPs, and the dry glue thickness is 15-25 um.
3. The method for producing the optical product protective film according to claim 1, wherein an AR coating is coated on one surface of the PET base layer, an optical-grade glue layer is coated on the other surface of the PET base layer, the AR coating is fluorine-silicon modified resin, the optical-grade glue layer is acrylic acid system glue, the kinematic viscosity is 30-50 cPs, and the dry glue thickness is 15-25 um.
4. The method for producing a protective film for optical products according to claim 3, wherein said AR coating is produced by preparing a solution of TEOS and anhydrous ethanol at a molar ratio of 1.
5. The method for producing an optical product protective film according to claim 4, wherein the method for producing the AR coating further comprises, before coating the mother liquid, ultrasonically cleaning the PET substrate with deionized water, ultrasonically cleaning with absolute ethyl alcohol, ultrasonically cleaning with deionized water for the second time, and drying.
6. The method for producing a protective film for optical products as claimed in claim 5, wherein the coating mother liquor on the surface of the PET substrate is a micro-concave coating, a 200-mesh micro-concave roller is used, the curing method is UV radiation, the radiation energy is 150-300 mJ/C square meter, and the linear velocity is 15-30M/min.
7. The method for producing an optical product protective film according to claim 6, wherein the method for producing an AR coating further comprises coating a film mother solution on the surface of the PET substrate to form an initial AR coating, sequentially mixing fluorosilicone, absolute ethyl alcohol and deionized water in a ratio of 3.
8. The method for producing a protective film for optical products according to claim 6, wherein the optical-grade glue layer is applied by blade or slit extrusion, the curing is thermal radiation curing, the temperature is 90-110 ℃, the linear speed is 15-30M/min, and the curing conditions are as follows: 40 ℃ and 72H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210727451.XA CN115160942B (en) | 2022-06-25 | 2022-06-25 | Optical product protective film and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210727451.XA CN115160942B (en) | 2022-06-25 | 2022-06-25 | Optical product protective film and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115160942A true CN115160942A (en) | 2022-10-11 |
| CN115160942B CN115160942B (en) | 2024-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210727451.XA Active CN115160942B (en) | 2022-06-25 | 2022-06-25 | Optical product protective film and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115160942B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116496706A (en) * | 2023-03-27 | 2023-07-28 | 惠州合益创光学材料有限公司 | Protective film for 3D curved screen and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771727A (en) * | 2013-12-31 | 2014-05-07 | 河南安彩高科股份有限公司 | Anti-reflection glass substrate as well as preparation method and application thereof |
| CN113387596A (en) * | 2021-08-02 | 2021-09-14 | 凯盛晶华玻璃有限公司 | Wear-resistant super-hydrophobic photovoltaic glass and preparation method thereof |
| CN215327870U (en) * | 2021-04-02 | 2021-12-28 | 东莞市恒聪包装制品有限公司 | Anti-fingerprint protective film |
-
2022
- 2022-06-25 CN CN202210727451.XA patent/CN115160942B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771727A (en) * | 2013-12-31 | 2014-05-07 | 河南安彩高科股份有限公司 | Anti-reflection glass substrate as well as preparation method and application thereof |
| CN215327870U (en) * | 2021-04-02 | 2021-12-28 | 东莞市恒聪包装制品有限公司 | Anti-fingerprint protective film |
| CN113387596A (en) * | 2021-08-02 | 2021-09-14 | 凯盛晶华玻璃有限公司 | Wear-resistant super-hydrophobic photovoltaic glass and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 晏良宏 等: "利用氟硅烷提高溶胶-凝胶SiO2增透膜的疏水性", 《强激光与粒子束》, vol. 19, no. 8, pages 1313 - 1316 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116496706A (en) * | 2023-03-27 | 2023-07-28 | 惠州合益创光学材料有限公司 | Protective film for 3D curved screen and preparation method thereof |
| CN116496706B (en) * | 2023-03-27 | 2023-10-27 | 惠州合益创光学材料有限公司 | Protective film for 3D curved screen and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115160942B (en) | 2024-02-27 |
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