Coated glass applied to furniture

Abstract

The utility model discloses coated glass applied to furniture in the technical field of glass magnetron sputtering coating, which comprises a glass substrate and a coating layer, the coating layer is sequentially compounded with a first film layer, a second film layer, a third film layer and a fourth film layer from the glass substrate to the outside, the first film layer is a niobium oxide layer, the coating thickness of the first film layer is 20nm-25nm, and the coating thickness of the second film layer is 20nm-25nm. The first film layer is a nickel-chromium layer, the second film layer is a silicon oxide layer, the coating thickness of the second film layer is 25 nm-30 nm, the third film layer is a nickel-chromium layer, the coating thickness of the third film layer is 25 nm-35 nm, the fourth film layer is a silicon oxide layer, and the coating thickness of the fourth film layer is 35 nm-40 nm. According to the coated glass, the furniture coated glass which is low in cost, free of pollution and capable of being continuously and quantitatively produced is provided through the thickness ratio of the film layers; the glass has good stability and wear resistance, and has a good market prospect as furniture decorative glass.

Description

Technical Field

[0001] The utility model relates to the technical field of glass magnetron sputtering coating, and particularly relates to a coated glass applied to furniture. Background Technique

[0002] With the development of the urbanization process and the improvement of people's living standards, the demand for decoration and furniture is increasing day by day, which also promotes the rapid development of the furniture glass market. Because furniture glass, as an accessory material for furniture, has good airtightness and light transmittance, and the material texture is tough, the appearance is beautiful and easy to clean and maintain, and it is more and more popular with people.

[0003] At present, most high-grade furniture glasses on the market are mainly colored printed glass, colored glaze glass, painted glass, frosted glass, and float color glass. Most of these products have relatively high production costs, are not suitable for large-board continuous quantitative production, are toxic and harmful, and cause certain pollution to the environment.

[0004] The present invention aims to provide a furniture coated glass with low cost, no pollution and continuous quantitative production through the thickness ratio between film layers.

[0005] Based on this, the utility model designs a coated glass applied to furniture to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a coated glass applied to furniture to solve the problem proposed in the above background technique, that is, to provide a furniture coated glass with low cost, no pollution and continuous quantitative production through the thickness ratio between film layers.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A coated glass applied to furniture, including a glass substrate and a coating layer. The coating layer is sequentially compounded with a first film layer, a second film layer, a third film layer and a fourth film layer from the glass substrate outwards. The first film layer is set as a niobium oxide layer, the coating thickness of the first film layer is 20nm - 25nm, the second film layer is set as a silicon oxide layer, the coating thickness of the second film layer is 25nm - 30nm, the third film layer is set as a nickel-chromium layer, the coating thickness of the third film layer is 25nm - 35nm, the fourth film layer is set as a silicon oxide layer, and the coating thickness of the fourth film layer is 35nm - 40nm.

[0008] Preferably, the sum of the film layer thicknesses of the first film layer, the second film layer, the third film layer and the fourth film layer is not less than 1000nm and not more than 130nm.

[0009] A method for preparing the coated glass applied to furniture, the method comprising the following steps: in a vacuum environment, vacuum magnetron sputtering is performed on the surface of the glass substrate with a target, and a first film layer, a second film layer, a third film layer, and a fourth film layer are sequentially sputtered to form;

[0010] 1), Magnetron sputtering coating layer;

[0011] A. Magnetron sputtering the first film layer:

[0012] Number of targets: 3 AC rotating targets; Target configuration: niobium oxide (NbOx); Process gas ratio: argon and oxygen, and the ratio of argon to oxygen is 20:1; Sputtering pressure is 3 - 5×10-3 mbar;

[0013] B. Magnetron sputtering the second film layer:

[0014] Number of targets: 4 AC rotating targets; Target configuration: silicon aluminum (SiAl); Process gas ratio: argon and oxygen, and the ratio of argon to oxygen is 1.4:1; Sputtering pressure is 2 - 3×10-3 mbar;

[0015] C. Magnetron sputtering the third film layer:

[0016] Number of targets: 3 DC planar targets; Target configuration: nickel chromium (NiCr); Process gas ratio: pure argon; Sputtering pressure is 2 - 7×10-3 mbar;

[0017] D. Magnetron sputtering the fourth film layer:

[0018] Number of targets: 6 AC rotating targets; Target configuration: silicon aluminum (SiAl); Process gas ratio: argon and oxygen, and the ratio of argon to oxygen is 1.4:1; Sputtering pressure is 2 - 3×10-3 mbar;

[0019] Preferably, the driving speed of the sputtering chamber is controlled at 4 m / min.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows: In this coated glass, the first film layer and the second film layer are used as dielectric layers, which are respectively set as niobium oxide layer (NbOx) and silicon oxide layer (SiOx). The dielectric layers of niobium oxide (NbOx) and silicon oxide (SiOx) are both oxides. The oxide film layer has excellent thermal stability and antioxidant ability. The second film layer is set as silicon oxide layer (SiOx), and silicon oxide (SiOx) as the top layer material has excellent abrasion resistance, which can better prevent the film layer from being scratched and damaged during single-piece use. The bottom layer is a composite of niobium oxide (NbOx) and silicon oxide (SiOx). Niobium oxide (NbOx) is a high refractive index coating material, and silicon oxide (SiOx) is a low refractive index coating material. The stacking of high and low refractive index film layers is an important part of realizing the low light source single-line perspective characteristic of the product. The ratio of this coated glass is achieved through the thickness ratio between the third film layer and the fourth film layer. Taking a 6mm European gray substrate coated single piece of the product of this patented technology as an example, it has the following points: visible light transmission color T ∈ [4.5, 5.5], a* ∈ [0, -1], b* ∈ [-3, -6]; visible light glass surface reflection color Lg ∈ [40, 45], a* ∈ [2, 4], b* ∈ [0, -2]; visible light film surface reflection color Lf ∈ [75, 80], a* ∈ [0, 1], b* ∈ [5, 8]. This coated glass provides a furniture coated glass with low cost, pollution-free and continuous quantitative production through the thickness ratio between film layers. The visible light transmittance is about 10%, the film surface has the characteristic of high reflectivity, has a one-way perspective effect, the film layer has high chemical stability and thermal stability, and can be used in single piece. As furniture decorative glass, it has a good market prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the layered structure of this coated glass.

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1 - First film layer, 2 - Second film layer, 3 - Third film layer, 4 - Fourth film layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1 , the present invention provides a technical solution: a coated glass applied to furniture, including a glass substrate and a coating layer. The coating layer is sequentially compounded with a first film layer 1, a second film layer 2, a third film layer 3, and a fourth film layer 4 from the glass substrate outwards. The first film layer 1 is set as a niobium oxide layer, and the coating thickness of the first film layer 1 is 20 nm to 25 nm. The second film layer 2 is set as a silicon oxide layer, and the coating thickness of the second film layer 2 is 25 nm to 30 nm. The third film layer 3 is set as a nickel-chromium layer, and the coating thickness of the third film layer 3 is 25 nm to 35 nm. The fourth film layer 4 is set as a silicon oxide layer, and the coating thickness of the fourth film layer 4 is 35 nm to 40 nm.

[0027] Among them, the sum of the film layer thicknesses of the first film layer, the second film layer, the third film layer, and the fourth film layer is not less than 100 nm and not more than 130 nm.

[0028] In this coated glass, the first film layer 1 and the second film layer 2 are used as dielectric layers, which are respectively set as a niobium oxide layer (NbOx) and a silicon oxide layer (SiOx). Both the dielectric layer of niobium oxide (NbOx) and silicon oxide (SiOx) are oxides. The oxide film layer has excellent thermal stability and antioxidant ability. The second film layer 2 is set as a silicon oxide layer (SiOx). As a top layer material, silicon oxide (SiOx) has excellent abrasion resistance, which can better prevent the film layer from being scratched and damaged during single-piece use. The bottom layer is a composite of niobium oxide (NbOx) and silicon oxide (SiOx). Niobium oxide (NbOx) is a high refractive index coating material, and silicon oxide (SiOx) is a low refractive index coating material. The folding of the high and low refractive index film layers is an important part of realizing the low-light single-line perspective characteristic of the product. The ratio of this coated glass is achieved through the thickness ratio between the third film layer 3 and the fourth film layer 4. Taking a 6mm European gray substrate coated single piece of the product of this patented technology as an example, it has the following points: the visible light transmission color T ∈ [4.5, 5.5], a* ∈ [0, -1], b* ∈ [-3, -6]; the visible light glass surface reflection color Lg ∈ [40, 45], a* ∈ [2, 4], b* ∈ [0, -2]; the visible light film surface reflection color Lf ∈ [75, 80], a* ∈ [0, 1], b* ∈ [5, 8]. This coated glass provides a furniture coated glass with low cost, no pollution and continuous quantitative production through the thickness ratio between film layers. The visible light transmittance is about 10%, the film surface has the characteristic of high reflectivity, has a one-way perspective effect, the film layer has high chemical stability and thermal stability, and can be used in single piece. As furniture decorative glass, it has good market prospects.

[0029] A method for preparing coated glass applied to furniture, this method includes the following steps: in a vacuum environment, use a target to perform vacuum magnetron sputtering on the surface of the glass substrate, and sequentially sputter to form the first film layer, the second film layer, the third film layer and the fourth film layer;

[0030] 1), Magnetron sputtering coating layer;

[0031] A. Magnetron sputter the first film layer 1:

[0032] Number of targets: 3 AC rotating targets; Target configuration: niobium oxide (NbOx); Process gas ratio: argon and oxygen, and the ratio of argon to oxygen is 20:1; Sputtering pressure is 3 - 5×10-3 mbar;

[0033] B. Magnetron sputter the second film layer 2:

[0034] Number of targets: 4 AC rotating targets; Target configuration: silicon aluminum (SiAl); Process gas ratio: argon and oxygen, and the ratio of argon to oxygen is 1.4:1; Sputtering pressure is 2 - 3×10-3 mbar;

[0035] C. Magnetron Sputtering the Third Film Layer 3:

[0036] Number of targets: 3 DC planar targets; Target configuration: nickel-chromium (NiCr); Process gas ratio: pure argon; Sputtering gas pressure: 2 - 7×10⁻³ mbar;

[0037] D. Magnetron Sputtering the Fourth Film Layer 4:

[0038] Number of targets: 6 AC rotating targets; Target configuration: silicon-aluminum (SiAl); Process gas ratio: argon and oxygen, with a ratio of argon to oxygen of 1.4:1; Sputtering gas pressure: 2 - 3×10⁻³ mbar;

[0039] The total film layer thickness is controlled within 100 - 130 nm, and generally the driving speed of the sputtering chamber is controlled at 4 m / min.

[0040] The glass substrate is float glass with a thickness of 4 - 12 mm.

[0041] Examples 1 - 4

[0042] A coated glass for furniture and its preparation method, comprising the following steps:

[0043] A: Select a glass substrate, cut it with a cutting machine according to a predetermined size, place the air side of the substrate facing up, clean it with a cleaning machine, and dry the moisture with an air knife;

[0044] B: Feed the cleaned substrate into a vacuum magnetron sputtering chamber and sputter each coating layer in sequence. The specific parameters are shown in Table 1

[0045] Table 1

[0046]

[0047]

[0048] Measure the optical properties of the glass prepared in the above Examples 1 - 4. The test results are shown in Table 2:

[0049] Table 2

[0050] Example 1 Example 2 Example 3 Example 4 Visible light transmittance (%) 5.5 5.1 4.8 4.6 Transmitted color a* value -0.2 -0.8 -0.9 -0.3 Transmitted color b* value -5.2 -4.3 -4.2 -3.4 Glass surface reflection luminance L* value 44.8 43.2 43.4 44.2 Glass surface reflection color a* value 2.3 2.5 3.8 3.2 Glass surface reflection color b* value -1.8 -1.2 -0.5 -0.2 Film surface reflection luminance L* value 75.6 78.2 78.7 79.5 Film surface reflection color a* value 0.8 0.2 0.9 0.3 Film surface reflection color b* value 5.2 6.2 6.3 7.8

[0051] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0052] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A coated glass applied to furniture, comprising a glass substrate and a coating layer, characterized in that: The coating layer is successively compounded with a first film layer (1), a second film layer (2), a third film layer (3) and a fourth film layer (4) from the glass substrate outwards. The first film layer (1) is set as a niobium oxide layer, and the coating thickness of the first film layer (1) is 20 nm to 25 nm. The second film layer (2) is set as a silicon oxide layer, and the coating thickness of the second film layer (2) is 25 nm to 30 nm. The third film layer (3) is set as a nickel-chromium layer, and the coating thickness of the third film layer (3) is 25 nm to 35 nm. The fourth film layer (4) is set as a silicon oxide layer, and the coating thickness of the fourth film layer (4) is 35 nm to 40 nm.

2. The coated glass applied to furniture according to claim 1, wherein: The sum of the film layer thicknesses of the first film layer, the second film layer, the third film layer and the fourth film layer is not less than 100 nm and not more than 130 nm.

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