A neutral color low-e coated glass that reflects and transmits

Abstract

The utility model relates to a coated glass production technical field, concretely relates to a kind of neutral color low-emissivity coated glass of reflection and transmission, including glass substrate and the coating layer being set on the one face of substrate, coating layer is composed of bottom dielectric layer, first protective layer, functional layer, second protective layer, top dielectric layer that are sequentially arranged from the one face of glass substrate to the outside side, bottom dielectric layer and top dielectric layer are the composite dielectric layer that is combined by SiAl Nx layer and ZnAl Ox layer, functional layer is Ag layer, first protective layer and second protective layer are Ni Cr or T i layer, the utility model makes the glass face reflection of coated glass, coated surface reflection and transmission all show neutral color by using conventional coating material and reasonable film thickness design.

Description

Technical Field

[0001] This utility model relates to the field of coated glass production technology, and in particular to a neutral color low-emissivity coated glass that reflects and transmits light. Background Technology

[0002] With the escalating global energy crisis and heightened environmental awareness, reducing building energy consumption has become a crucial objective. Building doors, windows, and curtain walls are energy-inefficient components of the building envelope, and glass, in particular, is a weak point in energy consumption within these structures. Its optical and thermal properties have a decisive impact on the overall heating and cooling energy consumption of a building. As global building energy efficiency standards continue to rise, low-emissivity (LEC) coated glass has become a core material for modern building doors, windows, and curtain walls due to its ability to significantly reduce building heating and cooling energy consumption. Single-silver LEC coated glass dominates the energy-saving glass market due to its relatively low manufacturing cost and mature technology, but its optical performance generally has certain limitations.

[0003] Coated glass has three colors: the color reflected from the glass surface, the color reflected from the coating surface, and the color transmitted. It is usually difficult for these three colors to be neutral at the same time. For example, when the color reflected from the glass surface is neutral, the color transmitted may be greenish, and the color reflected from the coating surface may be bluish or purplish. This leads to color deviation when observing objects through the glass or when the glass itself reflects images of objects, affecting the visual effect.

[0004] To address this, a neutral-colored, low-emissivity coated glass that reflects and transmits light is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a neutral-colored, low-emissivity coated glass that reflects and transmits light, in order to solve the problem mentioned in the background art where coated glass has three colors: the glass surface reflection color, the coated surface reflection color, and the transmitted color. Usually, it is difficult for these three colors to be neutral at the same time. For example, when the glass surface reflection color is neutral, the transmitted color may be greenish, and the film surface reflection color may be bluish or purplish. This leads to color deviation when observing objects through the glass or when the glass itself reflects images of objects, resulting in problems with the visual effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reflective and transmissive neutral color low-emissivity coated glass, comprising a glass substrate and a coating layer, wherein the coating layer is composed of a bottom dielectric layer, a first protective layer, a functional layer, a second protective layer, and a top dielectric layer sequentially disposed from one side of the glass substrate facing outwards, wherein the bottom dielectric layer and the top dielectric layer are composite layers composed of SiAlNx layers and ZnAlOx layers, the functional layer is an Ag layer, and the first and second protective layers are NiCr or Ti layers.

[0007] Preferably, the bottom dielectric layer is a composite dielectric layer consisting of SiAlNx layers and ZnAlOx layers sequentially disposed from one side of the glass substrate away from the glass.

[0008] Preferably, the first protective layer is a NiCr or Ti layer disposed on the bottom ZnAlOx layer.

[0009] Preferably, the functional layer is an Ag layer disposed on the first protective layer.

[0010] Preferably, the second protective layer is a NiCr or Ti layer disposed on the functional Ag layer away from the glass direction.

[0011] Preferably, the top dielectric layer is a composite dielectric layer consisting of a ZnAlOx layer and a SiAlNx layer sequentially disposed on the second protective layer away from the glass direction. Alternatively, a ZrOx or SiZrOx protective layer can be disposed on the SiAlNx layer to improve the subsequent processability of the product.

[0012] Preferably, the thickness of the bottom dielectric layer is 35-45 nm; the thickness of the top dielectric layer is 30-45 nm.

[0013] Preferably, the thickness of the functional layer is 8-10 nm.

[0014] Preferably, the thickness of the first protective layer and the second protective layer is 0.4-2 nm.

[0015] Preferably, the thickness of the optional outermost protective layer is 4-6 nm.

[0016] The beneficial effects of this utility model are: This invention, through design and adjustment of the thickness ratio of each film layer, enables the low-emissivity coated glass of this invention to possess neutral-colored glass surface reflection, coating surface reflection, and transmission, solving the problem that it is usually difficult for glass surface reflection, coating surface reflection, and transmission to be neutral-colored simultaneously; at the same time, without adding new film layer materials, it uses conventional coating target materials, ensuring low production costs and process difficulty. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall perspective view of a neutral-colored low-emissivity coated glass that reflects and transmits light, according to an embodiment of the present invention. Figure 2 This is a cross-sectional structural diagram of a reflective and transmissive neutral color low-emissivity coated glass according to an embodiment of the present invention.

[0019] The following are labeled in the figure: 10, glass substrate; 20, coating layer; 21, bottom dielectric layer; 22, first protective layer; 23, functional layer; 24, second protective layer; 25, top dielectric layer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 2 As shown, a specific embodiment of this utility model provides a reflective and transmissive neutral color low-emissivity coated glass, including a glass substrate 10 and a coating layer 20. The coating layer 20 is composed of a bottom dielectric layer 21, a first protective layer 22, a functional layer 23, a second protective layer 24, and a top dielectric layer 25 sequentially disposed from the glass substrate 10 outwards. The bottom dielectric layer 21 and the top dielectric layer 25 are composite layers composed of SiAlNx layers and ZnAlOx layers, the functional layer 23 is an Ag layer, and the first protective layer 22 and the second protective layer 24 are NiCr or Ti layers.

[0023] Specifically, the bottom dielectric layer 21 is a composite dielectric layer composed of SiAlNx layers and ZnAlOx layers sequentially disposed on one side (air side) of the glass substrate 10 away from the glass; the thickness of the bottom dielectric layer 21 is 35-45nm.

[0024] The first protective layer 22 is a NiCr or Ti layer disposed on the bottom ZnAlOx layer; the thickness of the first protective layer 22 is 0.4-2nm.

[0025] The functional layer 23 is an Ag layer disposed on the first protective layer 22 away from the glass; the thickness of the functional layer 23 is 8-10 nm.

[0026] The second protective layer 24 is a NiCr or Ti layer disposed on the functional layer 23; the thickness of the second protective layer 24 is 0.4-2nm.

[0027] The top dielectric layer 25 is a composite dielectric layer consisting of a ZnAlOx layer and a SiAlNx layer sequentially disposed on the second protective layer away from the glass direction. A ZrOx protective layer can be optionally disposed on the SiAlNx layer to improve the subsequent processability of the product. The thickness of the top dielectric layer 25 is 30-45nm, and the thickness of the top protective layer can be optionally 4-6nm. Example

[0028] In this embodiment, a low-emissivity coated glass with neutral color reflection and transmission includes a glass substrate 10 and a coating layer 20, wherein the coating layer 20 is sequentially disposed from the air surface of the glass substrate 10 outwards: Bottom dielectric layer 21 / First protective layer 22 / Functional layer 23 / Second protective layer 24 / Top dielectric layer 25.

[0029] The thicknesses of the corresponding films mentioned above are as follows: 41.8nm / 0.5nm / 8nm / 0.7nm / 39nm The above-mentioned film layers were sequentially deposited on the air surface of a 6mm high-quality processing grade ordinary float glass substrate (glass substrate 10) using a vacuum magnetron sputtering coating process.

[0030] The color of the coated glass prepared in the above embodiments was measured using the EXSITU online inspection equipment on the production line. The results are as follows: The glass surface reflection color L*=26.48, a*=-1.2, b*=-5.1; The reflectance of the film surface is L*=25.22, a*=0.61, b*=0.49; Through color L*=93.65, a*=-1.81, b*=-0.51.

[0031] The measurement results show that the glass surface reflection color, film surface reflection color, and transmission color of the embodiment are all neutral colors.

[0032] L* represents brightness, with a value between 0 and 100. The larger the value, the brighter the brightness, and the smaller the value, the lower the brightness. a* represents red and green, with a larger value indicating redder red and a smaller value indicating greener green. b* represents yellow and blue, with a larger value indicating yellower yellow and a smaller value indicating bluer blue. Example

[0033] In this embodiment, a low-emissivity coated glass that transmits neutral colors includes a glass substrate 10 and a coating layer 20, wherein the coating layer 20 is sequentially disposed from the air surface of the glass substrate 10 outwards: Bottom dielectric layer 21 / First protective layer 22 / Functional layer 23 / Second protective layer 24 / Top dielectric layer 25 / Top dielectric layer protective layer.

[0034] The thicknesses of the corresponding films mentioned above are as follows: 40nm / 0.8nm / 8nm / 0.4nm / 36nm / 4nm; The above-mentioned film layers were sequentially deposited on the air surface of a 6mm high-quality processing grade ordinary float glass substrate (glass substrate 10) using a vacuum magnetron sputtering coating process.

[0035] The color of the coated glass prepared in the above embodiments was measured using the EXSITU online inspection equipment on the production line. The results are as follows: The glass surface reflection color L*=26.77, a*=-1.26, b*=-6.66; The reflectance of the film surface is L*=24.22, a*=0.79, b*=-2.71; Through color L*=93.72.63, a*=-1.83, b*=-0.27.

[0036] The measurement results show that the glass surface reflection color, film surface reflection color, and transmission color of the embodiment are all neutral colors.

[0037] L* represents brightness, with a value between 0 and 100. The larger the value, the brighter the brightness, and the smaller the value, the lower the brightness. a* represents red and green, with a larger value indicating redder red and a smaller value indicating greener green. b* represents yellow and blue, with a larger value indicating yellower yellow and a smaller value indicating bluer blue.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A neutral-colored, low-emissivity coated glass that reflects and transmits light, characterized in that, It includes a glass substrate and a coating layer deposited on one side of the glass substrate. The coating layer is composed of a bottom dielectric layer, a first protective layer, a functional layer, a second protective layer, and a top dielectric layer arranged sequentially from one side of the glass substrate outward. The bottom dielectric layer and the top dielectric layer are composite dielectric layers composed of SiAlNx layers and ZnAlOx layers, the functional layer is an Ag layer, and the first and second protective layers are NiCr or Ti layers.

2. The reflective and transmissive neutral-color low-emissivity coated glass according to claim 1, characterized in that, The bottom dielectric layer is a composite dielectric layer consisting of SiAlNx layers and ZnAlOx layers sequentially disposed from one side of the glass substrate away from the glass.

3. The reflective and transmissive neutral-color low-emissivity coated glass according to claim 1, characterized in that, The first protective layer is a NiCr or Ti layer disposed on the bottom ZnAlOx layer.

4. The reflective and transmissive neutral-color low-emissivity coated glass according to claim 1, characterized in that, The functional layer is an Ag layer disposed on the first protective layer NiCr or Ti layer.

5. The reflective and transmissive neutral-color low-emissivity coated glass according to claim 1, characterized in that, The second protective layer is a NiCr or Ti layer disposed on the functional Ag layer away from the glass direction.

6. The reflective and transmissive neutral-color low-emissivity coated glass according to claim 1, characterized in that, The top dielectric layer is a composite dielectric layer consisting of a ZnAlOx layer and a SiAlNx layer sequentially disposed on the second protective layer away from the glass direction. A protective layer of ZrOx or SiZrOx may be selectively disposed on the SiAlNx layer of the top dielectric layer away from the glass direction.

7. The reflective and transmissive neutral-color low-emissivity coated glass according to claim 1, characterized in that, The thickness of the bottom dielectric layer is 35-45 nm; the thickness of the top dielectric layer is 30-45 nm.

8. The reflective and transmissive neutral-color low-emissivity coated glass according to claim 1, characterized in that, The thickness of the functional layer is 8-10 nm.

9. The reflective and transmissive neutral-color low-emissivity coated glass according to claim 1, characterized in that, The thickness of the first protective layer and the second protective layer is 0.4-2 nm.

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