CN212532828U - Protective film special for optical glass coating - Google Patents
Protective film special for optical glass coating Download PDFInfo
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- CN212532828U CN212532828U CN201922451908.5U CN201922451908U CN212532828U CN 212532828 U CN212532828 U CN 212532828U CN 201922451908 U CN201922451908 U CN 201922451908U CN 212532828 U CN212532828 U CN 212532828U
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Abstract
The utility model provides a special protective film for optical glass coating, which comprises a low-precipitation PET film, an adhesive layer and a PET release film; PET has the viscose layer from the surface coating of type membrane, low appear PET membrane with PET has the one side laminating on viscose layer from the type membrane coating, the beneficial effects of the utility model reside in that: through special development of the film material and the acrylic adhesive and strict selection of the release film, the high-temperature-resistant acrylic adhesive has excellent temperature resistance, no precipitate after high temperature, no pollution and good die cutting performance. The technical development of the scheme completely compensates the micromolecule precipitation and adhesive residue pollution of the protective film in the optical glass coating film, improves the process yield and the manufacturing efficiency, greatly reduces the production cost, has the advantages of high temperature resistance, no precipitate pollution, no adhesive residue, excellent die cutting performance and the like, and can be widely applied to the PVD process of the optical glass.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a protection film especially relates to a special protection film of optical glass coating film.
[ background of the invention ]
With the updating of intelligent electronic products, the requirements of touch screens on light refraction, fingerprint resistance, scratch resistance and the like are higher and higher, and various new PVD materials on the surface of optical glass are widely applied to improve the optical performance and the physical performance of the glass; the requirement for the protective film is higher and higher because the PVD process requires higher temperature and ultrahigh vacuum degree; firstly, the thinner the protective film is, the better the protective film is, the normal thickness is controlled below 10um and 20um, so as to improve the quantity of mass production; secondly, the film material and the acrylic adhesive are required to resist high temperature (reaching 180 ℃ for more than 2 hours), and the existing protective film can be stripped to separate out residual adhesive pollution; the method has the advantages of no excellent temperature resistance, poor die cutting performance, low process yield and manufacturing efficiency and high production cost.
[ Utility model ] content
The utility model aims to solve the problems that the protective film existing in the prior protective film can separate out the residual glue pollution after peeling off, has no excellent temperature resistance, poor die cutting performance, low process yield and manufacturing efficiency and high production cost, and provides a special protective film for optical glass coating.
The utility model discloses a realize through following technical scheme: a special protective film for optical glass coating comprises a low-precipitation PET film, an adhesive layer and a PET release film;
the surface of the PET release film is coated with an adhesive layer, and the low-precipitation PET film is attached to one surface of the PET release film coated with the adhesive layer.
Further, the thickness of the low-precipitation PET film is 6-12 um, and the small-molecule precipitation (180 ℃, 30Min) of the low-precipitation PET film is less than 0.2%.
Furthermore, the adhesive layer is a high-temperature-resistant acrylic adhesive, the high-temperature-resistant acrylic adhesive is made of high-temperature-resistant resin copolymerized polyester, and the change additive is made of metal strip modification resistance.
Further, the low-precipitation PET film is purified from PET polyester at high temperature.
Further, the thickness of viscose layer is 2 to 10um, and temperature resistant 180 ℃, 2 Hrs.
Further, the adhesive force of the low-precipitation PET film, the adhesive layer and the PET release film is 5 to 50g/25 mm.
Further, PET is from the thickness of type membrane and is 25 to 75um, PET is from type membrane peel force 5 to 30g/25mm, PET is greater than 95% from the type membrane incomplete percent.
The beneficial effects of the utility model reside in that: through special development of the film material and the acrylic adhesive and strict selection of the release film, the high-temperature-resistant acrylic adhesive has excellent temperature resistance, no precipitate after high temperature, no pollution and good die cutting performance. The technical development of the scheme completely compensates the micromolecule precipitation and adhesive residue pollution of the protective film in the optical glass coating film, improves the process yield and the manufacturing efficiency, greatly reduces the production cost, has the advantages of high temperature resistance, no precipitate pollution, no adhesive residue, excellent die cutting performance and the like, and can be widely applied to the PVD process of the optical glass.
[ description of the drawings ]
Fig. 1 is a schematic view of the structure of the protective film dedicated for coating optical glass of the present invention.
Reference numerals: 1. low-precipitation PET film; 2. an adhesive layer; 3. PET release film.
[ detailed description ] embodiments
The invention will be further described with reference to the accompanying drawings and specific embodiments:
the first embodiment is as follows:
as shown in fig. 1, a special protective film for optical glass coating comprises a low-precipitation PET film 1, an adhesive layer 2 and a PET release film 3;
PET has adhesive layer 2 from the coating of the surface of type membrane 3, low precipitation PET membrane 1 with PET is from the laminating of the one side that adhesive layer 2 was coated to type membrane 3.
Preferably, the thickness of the low-precipitation PET film 1 is 6-12 um, and the small-molecule precipitation (180 ℃, 30Min) of the low-precipitation PET film 1 is less than 0.2%.
Preferably, the adhesive layer 2 is a high-temperature-resistant acrylic adhesive, the high-temperature-resistant acrylic adhesive is a high-temperature-resistant resin copolymerized polyester, and the change additive is made by modifying the metal strip.
Preferably, the low-precipitation PET film 1 is purified by PET polyester at high temperature.
Preferably, the thickness of the adhesive layer 2 is 2 to 10um, and the adhesive layer can resist 180 ℃ and 2 Hrs.
Preferably, the adhesive force of the low-extraction PET film 1, the adhesive layer 2 and the PET release film 3 is 5 to 50g/25 mm.
Preferably, the thickness of PET release film 3 is 25 to 75um, PET release film 3 peel force 5 to 30g/25mm, PET release film 3 is incomplete to be rateed and is greater than 95%.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (4)
1. The special protective film for optical glass coating is characterized in that: comprises a low-precipitation PET film, an adhesive layer and a PET release film;
PET has the viscose layer from the surface coating of type membrane, low-precipitate PET membrane with PET is laminated from the one side that the type membrane coating has the viscose layer, low-precipitate PET membrane thickness is 6 to 12um, just the micromolecule precipitate of low-precipitate PET membrane is less than 0.2% at 180 ℃ and 30Min, the viscose layer is high temperature resistant ya keli viscose agent, PET is 25 to 75um from the thickness of type membrane, PET is from type membrane peel force 5 to 30g/25mm, PET is greater than 95% from type membrane residual rate.
2. The protective film special for optical glass coating according to claim 1, wherein: the low-precipitation PET film is obtained by purifying PET polyester at high temperature.
3. The protective film special for optical glass coating according to claim 1, wherein: the thickness of the adhesive layer is 2-10 um, and the adhesive layer can resist the temperature of 180 ℃ and 2 Hrs.
4. The protective film special for optical glass coating according to claim 1, wherein: the adhesive force of the low-precipitation PET film, the adhesive layer and the PET release film is 5-50 g/25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922451908.5U CN212532828U (en) | 2019-12-31 | 2019-12-31 | Protective film special for optical glass coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922451908.5U CN212532828U (en) | 2019-12-31 | 2019-12-31 | Protective film special for optical glass coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212532828U true CN212532828U (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922451908.5U Active CN212532828U (en) | 2019-12-31 | 2019-12-31 | Protective film special for optical glass coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN212532828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874712A (en) * | 2022-05-31 | 2022-08-09 | 广东东立新材料科技股份有限公司 | Easily-stripped anti-aging protective film and preparation method and application thereof |
-
2019
- 2019-12-31 CN CN201922451908.5U patent/CN212532828U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874712A (en) * | 2022-05-31 | 2022-08-09 | 广东东立新材料科技股份有限公司 | Easily-stripped anti-aging protective film and preparation method and application thereof |
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