Anti-reflection and anti-static polymer decorative film with multi-layer structure

Abstract

The utility model relates to an antireflection antistatic polymer decorative film with a multilayer structure, and relates to the field of polymer decorative films. The high-molecular decorative film comprises a low-refraction anti-reflection coating (3), a high-refraction anti-reflection antistatic coating (4), a bottom coating (2), a PET layer (1), an adhesive layer (5) and a colored PETG layer (6), wherein the high-refraction anti-reflection antistatic coating (4), the low-refraction anti-reflection coating (3), the bottom coating (2), the PET layer (1), the adhesive layer (5) and the colored PETG layer (6) are sequentially coated with the high-refraction anti-reflection antistatic coating (4), the low-refraction anti-reflection coating (3), the bottom coating (2), the adhesive layer (5) and the colored PETG layer (6). The composite polymer decorative film combines the advantages of a highlight film and a skin-touch film, not only retains the flat surface of the highlight film and has the advantage of easy cleaning, but also has the advantages of less light reflection and good texture of the skin-touch film, and meanwhile, because the reflected light is reduced and the projection light is increased, the composite film has better definition than the highlight decorative film; and the color is brighter and more beautiful.

Description

TECHNICAL FIELD

[0001] The application relates to the field of high polymer decorative films, in particular to a high polymer decorative film with a multilayer structure and antistatic and antireflection functions. BACKGROUND

[0002] With the improvement of people's living standards and the continuous progress of science, the manufacturing method of household cabinets has changed from the traditional carpentry to whole-house customization. At present, the most popular whole-house customized decorative panel in China is mainly high-gloss decorative panel and skin-sense decorative panel. The surface of the high-gloss decorative film is smooth, and it is easy to get dust, fingerprints and stains, and it needs to be cleaned frequently. However, because the film surface is flat, it is relatively easy to clean, but the high-reflectivity surface will make the product look dazzling, and the stains, fingerprints and defects on the surface will be particularly noticeable due to light reflection.

[0003] The skin-sense decorative film usually forms a micro concave-convex structure on the surface of the film by using a coating or a calendering technology. The micro concave-convex structure diffusely reflects light, so it looks more comfortable, has no light pollution, and is more elegant. The high-quality skin-sense coating also has a "lotus effect" like hydrophobic effect, and has a certain anti-fingerprint effect. However, the concave-convex structure on the surface also brings trouble to surface cleaning. Small stains and oil stains will penetrate into the micro concave-convex structure on the surface and become difficult to clean, such as oil stains, fingerprints and cleaning agents. Therefore, the development of a low-reflectivity decorative film without light pollution and easy to clean has become a key breakthrough point for the whole-house customization industry. CONTENT OF THE INVENTION

[0004] In order to reduce the reflection of incident light and improve the transmittance of incident light by using the interference of light through the combination of a low-refractive antireflection coating and a high-refractive antireflection coating, and to achieve the effect of antireflection and increased transmittance, the application provides a high polymer decorative film with a multilayer structure and antistatic and antireflection functions.

[0005] The application provides a high polymer decorative film with a multilayer structure and antistatic and antireflection functions.

[0006] The application provides a high polymer decorative film with a multilayer structure and antistatic and antireflection functions.

[0007] By adopting the above technical scheme, the high polymer decorative film with a multilayer structure and antistatic and antireflection functions is prepared by a multilayer coating method.

[0008] Optionally, a primer layer (2) is coated on the PET substrate layer (1), a low-refractive anti-reflective layer (3) is coated above the primer layer (2), a high-refractive anti-reflective antistatic layer (4) is coated above the low-refractive anti-reflective layer (3), a composite adhesive layer (5) is coated below the PET substrate (1), a color PETG film (6) is attached below the composite adhesive layer (5), to obtain the anti-reflective high-molecular decorative film with a multi-layer structure.

[0009] By adopting the technical scheme, the low-refractive anti-reflective layer and the high-refractive anti-reflective layer are combined, the reflection of incident light is reduced by using the interference of light, and the transmittance of incident light is improved, so that the anti-reflective and anti-reflective effects are achieved.

[0010] Optionally, the PET substrate (1) is an optical-grade BOPET polyester film with a thickness of 50-100 μm.

[0011] By adopting the technical scheme, the anti-yellowing and temperature-resistant polyurethane adhesive is used to combine the anti-reflective PET composite polyester film, so that the surface of the high-light film is flat.

[0012] Optionally, the primer layer (2) is an environmentally friendly water-based adhesion coating with a thickness of 0.5-1 μm.

[0013] By adopting the technical scheme, the combination between the PET substrate and the low-refractive anti-reflective layer is more firm.

[0014] Optionally, the primer layer (2) is used to enhance the adhesion strength between the PET substrate (1) and the low-refractive anti-reflective layer (3).

[0015] By adopting the technical scheme, the high-light film has a flat surface and is easy to clean.

[0016] Optionally, the low-refractive anti-reflective layer (3) is a magnesium fluoride coating with a thickness of 5-10 μm.

[0017] By adopting the technical scheme,

[0018] Optionally, the high-refractive anti-reflective layer (4) is a silica coating with an antistatic agent and a thickness of 5-10 μm.

[0019] By adopting the technical scheme, the reflectivity of incident light can be reduced by about 90% by the silica coating.

[0020] Optionally, the composite adhesive layer (5) is a polyurethane adhesive layer with a thickness of 20-30 μm.

[0021] By adopting the technical scheme, the original color of the composite film is retained, and the composite film does not yellow, bubble or delaminate for a long time.

[0022] Optionally, the colored PETG film (6) is a colored PETG solid film with a thickness of 100-200 μm.

[0023] By using the above technical solution, the reflected light is reduced and the projected light is increased.

[0024] Optionally, the color presented by the high-molecular decorative film is mainly the color of the PETG film (6) through multi-layer anti-reflection technology.

[0025] By using the above technical solution, the composite film has better clarity and brighter color than the high-light decorative film.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. By combining a low-refraction anti-reflection coating and a high-refraction anti-reflection coating, the reflection of incident light is reduced by using the interference of light, the transmittance of incident light is improved, and the effect of anti-reflection and transmittance is achieved.

[0028] 2. The anti-yellowing and temperature-resistant polyurethane adhesive is used to bond the anti-reflection PET composite polyester film and the colorful PETG solid film, and the composite high-molecular decorative film combines the advantages of the high-light film and the skin-sensing film, retains the smooth surface of the high-light film and has the advantage of easy cleaning, has the advantages of less reflection and good texture of the skin-sensing film, reduces the reflected light and increases the projected light, and has better clarity and brighter color than the high-light decorative film.

[0029] 3. The color presented by the prepared composite high-molecular film is mainly the color of the PETG film, the reflected light is reduced and the projected light is increased through multi-layer anti-reflection technology, and the effect of anti-reflection and transmittance is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a planar structure schematic diagram of a high-molecular decorative film with a multi-layer structure and anti-reflection and anti-static according to an embodiment of the present application;

[0031] Explanation of reference signs: 1, PET base material; 2, bottom coating; 3, low-refraction anti-reflection coating; 4, high-refraction anti-reflection coating; 5, composite adhesive layer; 6, colored PETG film. DETAILED DESCRIPTION

[0032] The following will be described in detail with reference to the accompanying drawings. Figure 1 The present application will be further described in detail.

[0033] The present application discloses a high-molecular decorative film with a multi-layer structure and anti-reflection and anti-static. Referring to Figure 1The high-molecular decorative film with multi-layer structure, anti-reflective and anti-static, comprises, in sequence, high-refraction anti-reflective and anti-static coating 4, low-refraction anti-reflective coating 3, primer coating 2, PET layer 1, adhesive layer 5 and colored PETG layer 6.

[0034] The PET polyester film 1 with high light transmittance and low haze is selected as the substrate, and the thickness is 50-100 μm.

[0035] The water-based primer coating 2 is coated on the PET substrate 1 by using a precision coating machine in a micro-concave coating or an anilox coating mode, and the coating thickness is 0.5-1 μm.

[0036] The low-refraction anti-reflective coating 3 with a thickness of 5-10 μm is coated on the primer coating 2 by using a sol-gel method, and the main component is magnesium fluoride, which can reduce the reflectivity of incident light by about 70%. The coating is cured by using a thermal curing and UV curing double curing mode, so that the coating has good adhesion and will not delaminate.

[0037] The high-refraction anti-reflective coating 4 with a thickness of 5-10 μm is coated on the low-refraction anti-reflective coating 3 by using a sol-gel method, and the main component is silicon dioxide, which can reduce the reflectivity of incident light by about 90%. The coating is cured by using a thermal curing and UV curing double curing mode, so that the coating has good adhesion and will not delaminate. The antistatic agent is added in the coating, so that the product surface has anti-static effect and is not easy to adsorb dust.

[0038] The low-refraction anti-reflective layer and the high-refraction anti-reflective layer are combined, so that the anti-reflective effect and the anti-reflection effect are better than those of a single anti-reflective layer.

[0039] The composite polyurethane adhesive layer 5 with a thickness of 20-30 μm is coated below the PET substrate layer 1 by using a precision coating machine in a comma coating mode. The high-transparency two-component polyurethane adhesive with temperature resistance and yellowing resistance is used, so that the original color of the composite film is retained, and the composite film does not yellow, does not bubble and does not delaminate during long-term use.

[0040] The solid PETG film 6 is attached below the polyurethane adhesive layer 5 to provide the color of the composite film. After curing, the high-molecular decorative film with multi-layer structure, anti-reflective and anti-static, is obtained.

[0041] The implementation principle of the anti-reflective and anti-static high polymer decorative film with multi-layer structure according to the embodiment of the application is as follows: the low-refractive anti-reflective coating 3 and the high-refractive anti-reflective coating 4 are combined to reduce the reflection of incident light by using the interference of light, improve the transmittance of incident light, and achieve the effect of anti-reflection and increased transmittance. The transmittance PET composite polyester film and the colorful PETG solid film are adhered by using the temperature-resistant and yellow-resistant polyurethane adhesive, and the obtained composite high polymer decorative film combines the advantages of the high light film and the skin feeling film, retains the smooth surface of the high light film, has the advantage of easy cleaning, has the advantages of less reflection and good texture of the skin feeling film, and simultaneously reduces the reflected light and increases the projected light, so that the composite film has better clarity and brighter color than the high light decorative film.

[0042] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. An antireflective and antistatic polymer decorative film having a multilayer structure, characterized by: The high polymer decorative film comprises a low-refraction anti-reflection coating (3), a high-refraction anti-reflection and anti-static coating (4), a primer coating (2), a PET layer (1), a composite adhesive layer (5), and a colored PETG layer (6).

2. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The primer coating (2) is coated on the PET layer (1), the low-refraction anti-reflection coating (3) is coated on the primer coating (2), the high-refraction anti-reflection and anti-static coating (4) is coated on the low-refraction anti-reflection coating (3), the composite adhesive layer (5) is coated under the PET layer (1), and the colored PETG layer (6) is attached under the composite adhesive layer (5), so as to obtain the anti-reflection high polymer decorative film with the multi-layer structure.

3. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The PET layer (1) is an optical-grade BOPET polyester film with a thickness of 50-100 μm.

4. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The primer coating (2) is a water-based environment-friendly tackiness coating with a thickness of 0.5-1 μm.

5. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The primer coating (2) is used to enhance the adhesion strength between the PET layer (1) and the low-refraction anti-reflection coating (3).

6. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The low-refraction anti-reflection coating (3) is a magnesium fluoride coating with a thickness of 5-10 μm.

7. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The high-refraction anti-reflection and anti-static coating (4) is a silica coating with an anti-static agent and a thickness of 5-10 μm.

8. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The composite adhesive layer (5) is a polyurethane adhesive layer with a thickness of 20-30 μm.

9. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The colored PETG layer (6) is a colored PETG solid film with a thickness of 100-200 μm.

10. The antireflective and antistatic polymer decorative film with multilayer structure according to claim 1, characterized in that: The color of the high polymer decorative film is mainly determined by the color of the colored PETG layer (6) through the multi-layer anti-reflection technology.

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