CN218596301U - Energy-saving window film - Google Patents

Abstract

The utility model relates to an energy-conserving window membrane. It includes: the base material layer comprises a TPU layer and a vacuum sputtering coating, and the vacuum sputtering coating is arranged on at least one surface of the TPU layer; and the mounting adhesive layer is arranged on any one surface of the base material layer. Above-mentioned energy-conserving window membrane is because the TPU layer that the substrate layer includes has better ductility, consequently, when to especially arc face window glass dress window membrane, can be comparatively attached in arc face window glass for planar energy-conserving window membrane of shape, stretches energy-conserving window membrane to suitable cambered surface and can adorn the window membrane to arc face window glass to reduce the construction degree of difficulty of arc face window glass when adorning the window membrane, reduce energy-conserving window membrane breakage rate. The vacuum sputtering coating has better infrared ray reflecting capacity, better heat insulation and heat preservation performance, and effectively reduces the heat penetrating through the window film, thereby realizing the heat preservation effect, increasing the comfort level of a human body and saving energy consumption.

Description

Energy-saving window film

Technical Field

The utility model relates to a window membrane technical field especially relates to energy-conserving window membrane.

Background

A window film is a thin film material that can be attached to the surface of an architectural or automotive glazing to improve the performance and strength of the glass. In the conventional technology, the window film mostly uses PET (Polyethylene terephthalate, polyester resin) as a base material.

However, the external window film using PET as a base material has poor aging resistance, so that the external window film generally has a short service life. In addition, as the industry develops, more and more glasses are glasses with radian, namely arc-shaped surface window glass. When the window film is pasted on the window glass with the arc-shaped surface, a constructor is required to have higher technical level. In addition, when the window film is mounted, the conditions of window film damage, mounting failure or material waste and the like are very easy to occur.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for an energy-saving window film that is easy to fail in attaching the window film when the window film is attached.

An energy saving window film, comprising:

the base material layer comprises a TPU layer and a vacuum sputtering coating, and the vacuum sputtering coating is arranged on at least one surface of the TPU layer;

and the mounting adhesive layer is arranged on any one surface of the substrate layer.

In one embodiment, the vacuum sputtering coating comprises at least one coating layer, and the coating layer is made of metal, oxide or nitride.

In one embodiment, the thickness of the vacuum sputtering coating is 5nm-500nm.

In one embodiment, the TPU layer has a thickness of from 5 μm to 500 μm;

and/or the TPU layer has a visible light transmission of 5% -95%.

In one embodiment, the energy-saving window film further comprises a functional layer, and the functional layer is arranged on the surface of the substrate layer, which faces away from the mounting adhesive layer.

In one embodiment, the energy-saving window film further comprises a first release layer, and the first release layer is arranged on one side, far away from the substrate layer, of the functional layer.

In one embodiment, the energy-saving window film further comprises a second release layer, and the second release layer is arranged on one side, far away from the base material layer, of the mounting adhesive layer.

In one embodiment, the base material layer further comprises a composite adhesive layer, the number of the TPU layers is two or more, the vacuum sputtering coating layer is plated on the surface of at least one TPU layer, and the composite adhesive layer is arranged between the adjacent TPU layers.

In one embodiment, the vacuum sputter coating is disposed between the TPU layer and the composite bondline.

In one embodiment, the thickness of the composite glue layer is 3-20 μm;

and/or the composite glue layer is formed by glue which is coated on the TPU layer and contains ultraviolet absorption particles and/or pigment.

The TPU layer has good ductility, so that when the energy-saving window film is attached to the arc-shaped window glass, the energy-saving window film in a plane shape can be attached to the arc-shaped window glass smoothly, the energy-saving window film is stretched to a proper arc surface, and the arc-shaped window glass can be attached to the window film, so that the construction difficulty of the arc-shaped window glass during attaching the window film is reduced, and the breakage rate of the energy-saving window film is reduced. The vacuum sputtering coating has better infrared ray reflecting capacity, better heat insulation and heat preservation performance, and effectively reduces the heat penetrating through the window film, thereby realizing the heat preservation effect, increasing the comfort level of a human body and saving energy consumption.

Drawings

Fig. 1 is a schematic structural view of an energy-saving window film according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an energy-saving window film according to another embodiment of the present invention;

fig. 3 is a schematic structural view of an energy-saving window film according to another embodiment of the present invention.

Reference numerals:

100. a substrate layer; 110. a TPU layer; 110a, a first TPU layer; 110b, a second TPU layer; 120. vacuum sputtering a coating; 130. compounding a glue layer;

200. installing a glue layer;

300. a functional layer;

400. a first release layer;

500. a second release layer.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1-3, the present invention provides an energy saving window film. The energy-saving window film comprises a substrate layer 100 and a mounting adhesive layer 200. The base material layer 100 includes a TPU layer 110 and a vacuum sputtering coating layer 120. Wherein the TPU is thermoplastic polyurethane rubber. The vacuum sputter coating 120 is disposed on at least one surface of the TPU layer 110. That is, the vacuum sputtering coating 120 may be disposed on one surface of the TPU layer 110, or may be disposed on both surfaces of the TPU layer 110. The mounting adhesive layer 200 is provided on any one surface of the base material layer 100. When the energy-saving window film is attached to the glass, the mounting adhesive layer 200 is bonded to the window glass so as to mount the energy-saving window film on the surface of the glass.

Because the TPU layer 110 has good ductility, when the energy-saving window film is attached to the arc-shaped window glass, the energy-saving window film in a plane shape can be smoothly attached to the arc-shaped window glass, and the energy-saving window film is stretched to a proper arc surface to attach the window film to the arc-shaped window glass, so that the construction difficulty of the arc-shaped window glass in attaching the window film is reduced. In addition, the TPU layer 110 has better weather resistance, so that the service life of the energy-saving window film is longer, and the cost for replacing the energy-saving window film is reduced. The vacuum sputtering coating 120 and the TPU layer 110 have good combination performance, and are not easy to separate, so that the service life is prolonged.

In addition, the vacuum sputtering coating 120 can have a good heat insulation performance, and effectively reduce the heat penetrating through the window film, thereby realizing the heat preservation effect. Namely, when the outside temperature is high, the energy-saving window film can reduce the heat entering the building from the outside, thereby reducing the energy loss generated when the building is cooled and saving the energy. When the outside temperature is lower, the energy-saving window film can reduce the heat diffused from the interior of the building to the exterior of the building, thereby reducing the heat loss in the building and saving the energy. In addition, the vacuum sputter coating 120 is a spectrally selective coating and therefore has a better infrared ray reflection capability. Compared with other heat insulation film layers, the vacuum sputtering coating layer 120 has better heat insulation performance and heat preservation performance.

In addition, because the energy-saving window film is attached to the surface of the glass, when external force strikes the glass, partial acting force can be dispersed, and the probability that the glass is broken is reduced. When the glass is broken, the broken glass residues are still attached to the energy-saving window film, so that the condition that personnel are damaged due to splashing after the glass is broken can be effectively reduced.

In some embodiments, the thickness of the TPU layer 110 can range from 5 μm to 500 μm. For example, it may be 5 μm, 10 μm, 25 μm, 50 μm, 100 μm, 200 μm, 300 μm, 400 μm, or 500 μm. The TPU layer 110 with the thickness has good ductility, can be used for attaching the arc-shaped window glass with a large radian, and is not easy to stretch and damage.

In some embodiments, the TPU layer 110 can have a visible light transmission of 5% -95%. The TPU layer 110 with a suitable visible light transmittance can be selected according to actual conditions to satisfy the corresponding light transmitting or shading performance.

It is understood that in some embodiments, the visible light transmittance of the TPU layer 110 can be a fixed value, i.e., the visible light transmittance of the entire TPU layer 110 is substantially uniform. In other embodiments, the TPU layer 110 may include multiple regions with different visible light transmission rates to meet different light transmission or shade requirements.

In some embodiments, the vacuum sputter coating 120 includes at least one coating layer, which may be a metal, an oxide, or a nitride. The vacuum sputtering coating 120 may be provided with different materials and different numbers of coatings. The vacuum sputtering coating 120 has better spectrum selection characteristics, namely has different reflection and transmission performances for light with different wavelengths, so that the energy-saving window film has better heat insulation performance. Further, in some embodiments, the metal of the plating layer may include pure metal, such as aluminum, titanium, copper or silver, and may also include alloy, such as nickel-alloy or stainless steel. The oxide may include titanium oxide, niobium oxide, cesium oxide, silicon oxide, indium tin oxide, zinc oxide, or zinc aluminum oxide. The nitride may include titanium nitride.

When the number of plating layers in the vacuum sputtering plating layer 120 is two or more, the vacuum sputtering may be performed sequentially using targets of different materials to form corresponding plating layers.

When the number of the plating layers is plural, the materials of the adjacent plating layers may be the same or different. The thicknesses of the plating layers may be the same or different.

In some embodiments, the vacuum sputter coating 120 has a thickness in the range of 5nm to 500nm. For example, it may be 5nm, 10nm, 25nm, 50nm, 100nm, 200nm, 300nm, 400nm or 500nm. The vacuum sputtering coating 120 with the thickness has better heat insulation and heat preservation performance, and when the energy-saving window film is attached to the arc-shaped window glass with larger radian, the vacuum sputtering coating 120 is not easy to stretch and damage.

Above-mentioned substrate layer 100 has better ductility for energy-conserving window membrane can adorn and paste in plane or curved surface glass, and above-mentioned substrate layer 100 has better thermal-insulated heat preservation performance simultaneously, can reduce energy loss, more energy-concerving and environment-protective.

As shown in fig. 1, in some embodiments, the substrate layer 100 includes only one TPU layer 110 and one vacuum sputter coating 120.

As shown in fig. 2 and 3, in some other embodiments, the number of the TPU layers 110 in the substrate layer 100 is two or more, and the surface of at least one TPU layer 110 is plated with the vacuum sputtering plating layer 120. The substrate layer 100 further includes a composite adhesive layer 130, and the composite adhesive layer 130 is disposed between the adjacent TPU layers 110. That is, the substrate layer 100 has at least two TPU layers 110, and the TPU layers 110 are adhesively bonded by the composite bondline 130. Through setting up the TPU layer 110 of two and above quantity to increase substrate layer 100's thickness, when making substrate layer 100 have the better effect of preventing glass and splashing, improve energy-conserving window membrane's thermal-insulated effect.

In some embodiments, all TPU layers 110 may have some TPU layers 110 not directly attached to vacuum sputter coating 120, i.e., indirectly attached through composite glue layer 130. The remaining TPU layer 110 is directly attached to the vacuum sputter coating 120. In other embodiments, all of the TPU layers 110 are directly plated with the vacuum sputter coating 120.

In addition, the TPU layer 110 directly plated with the vacuum sputtering plating layer 120 may be plated with the vacuum sputtering plating layer 120 on one surface, or both surfaces may be plated with the vacuum sputtering plating layer 120.

It is understood that when the substrate layer 100 includes two or more vacuum sputtering coating layers 120, the number and the material of the coating layers in the vacuum sputtering coating layers 120 may be the same or different.

Referring to fig. 2 and 3, in some embodiments, the vacuum sputter coating 120 is disposed between the TPU layer 110 and the composite adhesive layer 130. That is, the vacuum sputtering coating 120 is sandwiched between the TPU layer 110 and the composite adhesive layer 130, that is, when the number of the TPU layers 110 is two or more, the vacuum sputtering coating 120 may be disposed on the opposite surfaces of the two TPU layers 110. Due to the arrangement, the TPU layer 110 and the composite adhesive layer 130 can protect both sides of the vacuum sputtering coating 120, the vacuum sputtering coating 120 is prevented from being damaged by external force, and the service life of the energy-saving window film is prolonged. It is understood that in some embodiments, the partial vacuum sputter coating 120 may also be disposed on a side of the TPU layer 110 facing away from the composite glue layer 130.

In some embodiments, the thickness of the composite glue layer 130 is 3 μm to 20 μm. The composite adhesive layer 130 with the thickness mentioned above can bond the two TPU layers 110 well, and when the TPU layers 110 extend, the two TPU layers 110 are not easily separated.

In some embodiments, the mounting adhesive layer 200 may be a pressure sensitive adhesive. The thickness of the mounting paste layer 200 may be 5 μm to 30 μm. The mounting adhesive layer 200 is used to connect the substrate layer 100 and the glass to be laminated with the window film.

In some embodiments, the make-up adhesive layer 200 is formed from a glue containing uv absorbing particles applied to the TPU layer. That is, the ultraviolet absorbing particles can be doped in the pressure sensitive adhesive, so that the mounting adhesive layer 200 has an ultraviolet absorbing function, and further cooperates with the substrate layer 100 to improve the ultraviolet absorbing and aging-resistant capabilities of the energy-saving window film.

In some embodiments, the adhesive layer 200 is formed by a glue containing a pigment applied to the TPU layer. That is, the colorant may be doped in the pressure-sensitive adhesive to achieve the corresponding color of the energy-saving window film by adjusting the color of the colorant, and the light transmittance of the energy-saving window film is affected by adjusting the content of the colorant.

It is understood that in some embodiments, the make-up adhesive layer 200 may be formed from a glue containing uv absorbing particles and a colorant applied to the TPU layer. Namely, the ultraviolet absorption particles and the pigment can be doped in the pressure-sensitive adhesive, so that the color and the light transmittance of the energy-saving window film are adjusted, and meanwhile, the energy-saving window film has a better ultraviolet absorption function.

In some embodiments, for an energy saving window film having two or more TPU layers 110, the composite glue layer 130 is formed from a glue containing uv absorbing particles applied to the TPU layers. That is, the ultraviolet absorbing particles may be doped in the pressure sensitive adhesive or the polyurethane adhesive, so that the composite adhesive layer 130 has an ultraviolet absorbing function, and further cooperates with the substrate layer 100 to improve the ultraviolet absorbing and aging resistant capabilities of the energy-saving window film.

In some embodiments, for an energy saving window film having two or more TPU layers 110, composite glue layer 130 is formed from a glue containing a colorant applied to the TPU layers. That is, the colorant may be disposed on the composite adhesive layer 130. The colorant may be doped in the pressure sensitive adhesive or the polyurethane adhesive to adjust the color and transmittance of the composite adhesive layer 130.

It is understood that in some embodiments, the uv-absorbing particles are doped only in the mounting adhesive layer 200, and in other embodiments, the uv-absorbing particles are doped only in the composite adhesive layer 130. In some other embodiments, the ultraviolet absorbing particles are doped in the mounting adhesive layer 200 and the composite adhesive layer 130 at the same time. Similarly, in some embodiments, the colorant is doped only in the mounting adhesive layer 200, and in other embodiments, the colorant is doped only in the composite adhesive layer 130. In some other embodiments, the pigment is doped in both the mounting adhesive layer 200 and the composite adhesive layer 130.

Referring to fig. 1-3, in some embodiments, the energy saving window film further comprises a functional layer 300. The functional layer 300 is disposed on the surface of the substrate layer 100 away from the mounting adhesive layer 200. The functional layer 300 may be a corrosion resistant, heat healed, scratch resistant functional layer 300. That is, the functional layer 300 has corrosion resistance, thermal repair, and scratch resistance at the same time. The functional layer 300 is disposed on the surface of the substrate layer 100 far from the mounting adhesive layer 200, and can protect the substrate layer 100 and resist corrosion, scratch and the like of the external environment energy-saving window film. In some of these embodiments, the functional layer 300 may be formed by coating of a corresponding material. In other embodiments, the functional layer 300 may be adhesively attached to the substrate layer 100.

In some embodiments, the functional layer 300 has a thickness of 2 μm to 20 μm. When the functional layer 300 with the thickness can better realize corresponding functions, and the energy-saving window film is attached to the arc-shaped window glass with a larger radian, the functional layer 300 is not easy to stretch and damage.

Referring to fig. 1 to 3, in some embodiments, the energy saving window film further includes a first release layer 400, and the first release layer 400 is disposed on a side of the functional layer 300 away from the substrate layer 100. The first release layer 400 can protect the functional layer 300 to prevent the energy saving window film from being worn during transportation and causing damage to the window film.

Further, in some embodiments, the thickness of the first release layer 400 is 12 μm to 100 μm. The first release layer 400 may be selected to have a suitable thickness according to factors such as cost and transportation conditions. After the energy-saving window film is attached to the glass, the first release layer 400 can be separated from the functional layer 300, so that the light transmittance of the energy-saving window film is ensured.

In some embodiments, the first release layer 400 may be a release paper or a release film, which may be selected according to actual situations.

Referring to fig. 1 to fig. 3, in some embodiments, the energy saving window film further includes a second release layer 500, and the second release layer 500 is disposed on a side of the mounting adhesive layer 200 away from the substrate layer 100. The second release layer 500 can protect the installation adhesive layer 200, so as to prevent the adhesion of the installation adhesive layer 200 and impurities from affecting the viscosity of the installation adhesive layer 200, even preventing the installation adhesive layer 200 from being unable to adhere to glass in the transportation process of the energy-saving window film.

Further, in some embodiments, the thickness of the second release layer 500 is 12 μm to 100 μm. The second release layer 500 may be selected to have a suitable thickness according to factors such as cost and transportation conditions. When the energy-saving window film is attached to the glass, the second release layer 500 is partially or completely separated from the mounting adhesive layer 200, and then the mounting adhesive layer 200 exposed to the outside is bonded to the glass, so that the attachment of the energy-saving window film is realized.

In some embodiments, the second release layer 500 may be a release paper or a release film, which may be selected according to actual situations. Example 1

Referring to fig. 2, the energy-saving window film includes a first release layer 400, a functional layer 300, a substrate layer 100 (a TPU layer 110 and a vacuum sputtering coating layer 120, which are sequentially disposed), a mounting adhesive layer 200, and a second release layer 500. Wherein the thickness of the functional layer 300 is 3 μm. The TPU layer 110 is a transparent TPU layer 110. The thickness of the TPU layer 110 is 100 μm. The vacuum sputter coating 120 includes a coating formed by vacuum sputtering a nickel-chromium alloy. The thickness of the mounting paste layer 200 was 10 μm. The thickness of the second release layer 500 was 23 μm.

Example 2

Referring to fig. 2, the energy-saving window film includes a first release layer 400, a functional layer 300, a substrate layer 100 (a first TPU layer 110a, a composite adhesive layer 130, a vacuum sputtering coating layer 120, and a second TPU layer 110 b), a mounting adhesive layer 200, and a second release layer 500, which are sequentially disposed. Wherein the functional layer 300 has a thickness of 2 μm. The first TPU layer 110a and the second TPU layer 110 are both transparent TPU layers 110. The thickness of the first TPU layer 110a is 80 μm. The thickness of the second TPU layer 110b is 50 μm. The thickness of the composite adhesive layer 130 is 10 μm. The vacuum sputtering coating 120 includes seven coatings, which are in turn formed by vacuum sputtering titanium oxide, silver, nichrome, and titanium oxide. The thickness of the mounting glue layer 200 is 10 μm. The thickness of the second release layer 500 was 23 μm.

Example 3

Referring to fig. 3, the difference between the embodiment 3 and the embodiment 2 is that the substrate layer 100 is a first TPU layer 110a, a vacuum sputtering coating layer 120, a composite glue layer 130, and a second TPU layer 110b sequentially arranged.

Example 4

Embodiment 4 is different from embodiment 3 in that the base material layer 100 includes a first TPU layer 110a, a vacuum sputter plating layer 120, a composite adhesive layer 130, a vacuum sputter plating layer 120, and a second TPU layer 110b, which are sequentially disposed.

Example 5

The embodiment 5 is different from the embodiment 3 in that the base material layer 100 is a vacuum sputtering plating layer 120, a first TPU layer 110a, a vacuum sputtering plating layer 120, a composite adhesive layer 130, a vacuum sputtering plating layer 120, and a second TPU layer 110b, which are sequentially disposed.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An energy saving window film, comprising:

the base material layer comprises a TPU layer and a vacuum sputtering coating, and the vacuum sputtering coating is arranged on at least one surface of the TPU layer;

and the mounting adhesive layer is arranged on any one surface of the base material layer.

2. The energy saving window film of claim 1, wherein the vacuum sputtered coating comprises at least one coating layer, and the coating layer is made of metal, oxide or nitride.

3. The energy saving window film of claim 1, wherein the vacuum sputter coating has a thickness of 5nm to 500nm.

4. The energy saving window film of claim 1, wherein the TPU layer has a thickness of 5-500 μ ι η;

and/or the TPU layer has a visible light transmission of 5% -95%.

5. The energy saving window film of claim 1, further comprising a functional layer disposed on a surface of the substrate layer facing away from the mounting adhesive layer.

6. The energy saving window film of claim 5, further comprising a first release layer disposed on a side of the functional layer away from the substrate layer.

7. The energy saving window film of claim 1, further comprising a second release layer disposed on a side of the mounting adhesive layer away from the substrate layer.

8. The energy saving window film of claim 1, wherein the substrate layer further comprises a composite adhesive layer, the number of the TPU layers is two or more, the vacuum sputtering coating is coated on the surface of at least one TPU layer, and the composite adhesive layer is arranged between the adjacent TPU layers.

9. The energy saving window film of claim 8, wherein the vacuum sputter coating is disposed between the TPU layer and the composite glue layer.

10. The energy saving window film of claim 8, wherein the thickness of the composite glue layer is 3 μm to 20 μm.

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