CN219058868U

CN219058868U - External-adhered color-changing window film for skylight

Info

Publication number: CN219058868U
Application number: CN202222618554.0U
Authority: CN
Inventors: 李宗胜; 李泽鸿; 施庆元
Original assignee: Guangdong Xinrui New Material Technology Co ltd
Current assignee: Guangdong Xinrui New Material Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-05-23
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a color-changing window film externally attached to a skylight, and relates to the technical field of window films. The repairing layer containing the ultraviolet absorber and the hydrophobic material can play a role of blocking ultraviolet rays in cooperation with the first ultraviolet-blocking base film layer on one hand, so that high-degree ultraviolet blocking is achieved; on the other hand, the repair layer and the ultraviolet-proof first base film layer can also effectively prevent water vapor from penetrating into the color-changing layer to cause damage to the color-changing layer, and the weather resistance of the color-changing window film is greatly improved.

Description

External-adhered color-changing window film for skylight

Technical Field

The utility model relates to the technical field of window films, in particular to a color-changing window film externally attached to a skylight.

Background

The window film is used as an energy-saving and environment-friendly product, and has wide market development prospect because of no pollution and convenient installation. The color-changing window film can accurately sense the intensity of light under the irradiation of ultraviolet rays or sunlight, and can generate color change after absorbing the ultraviolet rays or sunlight, so that quick photosensitive color change is realized, the color of the window film is deepened, and the color of the window film is recovered under the state without ultraviolet rays or no light, so that the strong sunlight can be effectively prevented from stimulating the sight of a driver, the functions of intelligent light change, shading and anti-dazzle are achieved, and the safe driving of the driver is effectively ensured. The color-changing window film on the market at present has certain ultraviolet-proof effect, but is difficult to realize high ultraviolet blocking effect, and the color-changing film has poor blocking effect on water vapor, and is difficult to realize effective protection on a color-changing layer, so that the color-changing window film has poor weather resistance and short service life, and cannot be used for outdoor stickers of sky windows at all. Therefore, there is a need in the art for an external window film to solve the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a skylight externally-adhered color-changing window film, which aims to solve the problem of poor weather resistance of the existing color-changing window film.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a skylight pastes color changing window membrane outward, includes from outside to interior repair layer, separates ultraviolet first base film layer, color changing layer, erection layer and from the rete, wherein repair layer doping has ultraviolet absorbent and hydrophobic material.

The color-changing window film comprises a repair layer, a first base film layer, a color-changing layer, a mounting layer and a release film layer from outside to inside, wherein the first base film layer has an ultraviolet isolation function; more importantly, the repair layer is formed into the repair layer with the hydrophobic function by doping the hydrophobic material, so that water vapor can be effectively blocked, the color-changing layer is effectively protected, and the weather resistance and the service life of the color-changing window film are improved. And the repair layer is combined with the first base film layer positioned outside the color-changing layer, so that the water vapor barrier effect can be further improved, and the color-changing layer is protected. The color-changing layer can enable the color-changing window film to sense the intensity of light under sunlight or ultraviolet rays so as to adjust the color of the window film, thereby playing a role in shading and preventing dazzle. The mounting layer facilitates the mounting of the window film on the mounting surface to be mounted. The release film layer is convenient for protecting the mounting layer. Preferably, the ultraviolet-isolating first base film layer is formed by adding an ultraviolet absorber into a slice, and performing melt stretching; or the first ultraviolet-blocking base film layer is an existing base film layer with an ultraviolet-blocking function; specifically, it may be a UV99 base film purchased from the family of the nano-linaceae.

Preferably, the ultraviolet-blocking first base film layer is an ultraviolet-blocking PET base film layer.

The ultraviolet-blocking first base film layer is an ultraviolet-blocking PET base film layer, and compared with the traditional TPU film and the like, the PET base film can effectively improve the water-oxygen blocking rate of the product and reduce the water from entering the color-changing layer. And the cost is lower by adopting the PET film, and the obvious ultraviolet-proof effect can be achieved by matching with the repairing layer. The ultraviolet-blocking PET base film layer and the repair layer containing the ultraviolet absorber are laminated, so that the ultraviolet-blocking effect is exerted together, and the ultraviolet blocking rate of the color-changing window film is more than 99%.

Preferably, the color-changing layer is a polyurethane layer doped with a spiropyran color-changing material; more preferably, the spiropyran color-changing material is OP168 color-changing powder of Tianjin Fuyang brand, and the polyurethane coating is EA2130 of Miya brand.

The color-changing layer is a polyurethane coating containing the spiropyran color-changing material, and is prepared by mixing, coating and curing high-strength and high-transparency polyurethane and the spiropyran color-changing material, and the color-changing material is clamped in the hard polyurethane, so that the stability of the color-changing material can be effectively improved, and the service life of the color-changing window film can be prolonged.

Preferably, a second base film layer is further arranged between the color-changing layer and the mounting layer, and the second base film layer is a PET base film layer. Because the laminating mode of this kind of external application window membrane is mostly water subsides, with window membrane cladding and catch up with the laminating of water after the water spray promptly, and set up the second base film layer, then can avoid in the work progress moisture from window membrane inboard installation one side entering the layer of discolouring and reduce the layer weatherability of discolouring, play the effect of effective separation water oxygen, further promote the weatherability, the life of whole window membrane. The second basic unit membrane effectively separates a large amount of moisture and gets into the layer that discolours when pasting promptly, avoids the injury of moisture to the layer that discolours in the work progress, and the erection site can make window membrane and sunroof adhere. The repairing layer is made of weather-resistant resin materials, so that the outdoor service performance of the product is ensured.

Preferably, the mounting layer is an acrylic pressure sensitive adhesive layer.

Preferably, the release film layer is prepared by coating silicone oil on a polyurethane film. More preferably, the release film layer is formed by coating silicone oil on a biaxially oriented polyurethane film, namely the release film layer is prepared by coating a biaxially oriented polyurethane film with a silicone oil layer; the release layer protects the mounting layer and can be peeled off before use.

Preferably, the thickness of the repair layer is 5-20 μm; and/or the thickness of the ultraviolet-proof first base film layer is 12-50 mu m; and/or the thickness of the color-changing layer is 3-10 mu m; and/or the thickness of the second base film layer is 12-50 mu m; and/or the thickness of the mounting layer is 5-20 mu m; and/or the thickness of the release film layer is 16-38 mu m.

Preferably, the total thickness of the color-changing window film is 53-188 μm.

The thickness of the repair layer is 5-20 mu m, the thickness of the ultraviolet-proof first base film layer is 12-50 mu m, the thickness of the color-changing layer is 3-10 mu m, the thickness of the second base film layer is 12-50 mu m, the thickness of the installation layer is 5-20 mu m, the thickness of the release film layer is 16-38 mu m, the total thickness of the color-changing window film is 53-188 mu m, and the color-changing window film with different thickness ranges comprises the repair layer, the ultraviolet-proof first base film layer, the color-changing layer, the second base film layer, the installation layer and the release film layer, so that the color-changing window film can be suitable for most Shi Cai, is convenient for practical use, ensures the efficacy of the skylight and effectively controls the production cost of the color-changing window film.

Preferably, the ultraviolet absorber is triazine ultraviolet absorber; and/or the hydrophobic material is a silane coupling agent, so as to provide a product hydrophobic effect; more preferably, the ultraviolet absorber is TINVUIN477 or TINVUIN479 of Basf brand; and/or, the hydrophobic material is TEGO 410, a German Di high brand.

The ultraviolet absorber is a triazine ultraviolet absorber, and has wide-spectrum high-efficiency ultraviolet blocking performance, good weather resistance and good long-term outdoor application stability, so that the color-changing window film has good ultraviolet blocking effect; the hydrophobic material is a silane coupling agent, and when the silane coupling agent is doped on the repair layer, the exposed surface of the window film shows hydrophobic property, so that moisture is prevented from entering or staying on the window film for a long time, and the damage to the color-changing layer caused by the penetration of the moisture into the color-changing layer is avoided.

Preferably, the repair layer is a transparent repair layer; can effectively ensure the high light transmittance of the color-changing window film.

Compared with the prior art, the utility model has the following effective effects:

the color-changing window film on the market at present has an ultraviolet-proof effect, but the blocking rate of the color-changing window film to ultraviolet rays is still insufficient, the blocking effect of the color-changing film to water vapor is poor, effective protection to a color-changing layer is difficult to realize, and the weather resistance of the color-changing window film is poor and the service life of the color-changing window film is short. The color-changing window film comprises a repairing layer, an ultraviolet-blocking first base film layer, a color-changing layer, a second base film layer, a mounting layer and a release film layer which are sequentially laminated, wherein the repairing layer contains an ultraviolet absorber and a hydrophobic material, the repairing layer and the ultraviolet-blocking first base film jointly play a role in blocking ultraviolet rays, the ultraviolet blocking rate is obviously improved, and the color-changing layer in the window film is effectively protected; meanwhile, the hydrophobic material in the repairing layer can also effectively prevent water vapor in the air from penetrating into the color-changing layer to cause damage to the color-changing layer, so that the weather resistance of the color-changing window film is greatly improved. And the color-changing layer adopts polyurethane glue to anchor the color-changing material, so that the weather resistance of the color-changing layer is further enhanced. Meanwhile, the weather resistance of the window film is further improved through the second base film layer arranged between the color-changing layer and the mounting layer, and the service life is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a color-changing window film for exterior sunroof in example 1;

in the figure: 1. repairing the layer; 2. the first base film layer is isolated from ultraviolet; 3. a color-changing layer; 4. a second base film layer; 5. an installation layer; 6. and (3) a release film layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

Referring to fig. 1, the present utility model is a color-changing window film for a sunroof, which includes a repair layer 1, a first base film layer 2 for blocking ultraviolet, a color-changing layer 3, a second base film layer 4, a mounting layer 5, and a release film layer 6, wherein the repair layer 1 contains an ultraviolet absorbent and a hydrophobic material.

The ultraviolet-proof first base film layer 2 is an ultraviolet-proof PET base film layer, the color-changing layer 3 is a polyurethane coating containing a spiropyran color-changing material, wherein the polyurethane coating can be formed by EA2130 of Mian, the spiropyran color-changing material can be OP168 color-changing powder of Tianjin Fuyang, the second base film layer 4 is the PET base film layer, the mounting layer 5 is an acrylic pressure-sensitive adhesive layer, and the release film layer 6 is a polyurethane film layer. The ultraviolet absorbent in the repair layer 1 is triazine ultraviolet absorbent; and/or the hydrophobic material is a silane coupling agent, the repairing layer 1 is a transparent repairing layer, and the thickness of the repairing layer 1 is 5-20 mu m; and/or the thickness of the ultraviolet-proof first base film layer 2 is 12-50 mu m; and/or the thickness of the color-changing layer 3 is 3-10 mu m; and/or the thickness of the second base film layer 4 is 12-50 mu m; and/or the thickness of the mounting layer 5 is 5-20 μm; and/or the thickness of the release film layer 6 is 16-38 mu m, and the total thickness of the color-changing window film is 53-188 mu m.

While the embodiments have been described above, other variations and modifications will occur to those skilled in the art once the basic inventive concepts are known, and it is therefore intended that the foregoing description and drawings illustrate only embodiments of the utility model and not limit the scope of the utility model, and it is therefore intended that the utility model not be limited to the specific embodiments described, but that the utility model may be practiced with their equivalent structures or with their equivalent processes or with their use directly or indirectly in other related fields.

Claims

1. The skylight outer-sticking color-changing window film is characterized by comprising a repair layer, an ultraviolet-blocking first base film layer, a color-changing layer, a mounting layer and a release film layer from outside to inside, wherein the repair layer has an ultraviolet blocking function and a hydrophobic function.

2. The sunroof outer covering color-changing window film according to claim 1, wherein the ultraviolet-blocking first base film layer is an ultraviolet-blocking PET base film layer.

3. The skylight outer-sticking color-changing window film according to claim 1, wherein a second base film layer is further arranged between the color-changing layer and the mounting layer, and the second base film layer is a PET base film layer.

4. A sunroof outer covering color-changing window film according to claim 3, wherein the second base film layer has a thickness of 12 to 50 μm.

5. A sunroof outer covering color change window film according to any one of claims 1 to 4, wherein the mounting layer is an acrylic pressure sensitive adhesive layer.

6. A sunroof outer covering color-changing window film according to any one of claims 1 to 4, wherein the thickness of the repair layer is 5 to 20 μm; and/or the thickness of the ultraviolet-proof first base film layer is 12-50 mu m; and/or the thickness of the color-changing layer is 3-10 mu m; and/or the thickness of the mounting layer is 5-20 mu m; and/or the thickness of the release film layer is 16-38 mu m.

7. A sunroof outer covering color-changing window film according to any one of claims 1 to 4, wherein the repair layer is a transparent repair layer.