Coated glass applied to decoration

Abstract

The utility model discloses coated glass applied to decoration 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, a fourth film layer and a fifth film layer from the glass substrate to the outside, the first film layer is a silicon nitride layer, and the fifth film layer is a silicon nitride layer. The coating thickness of the first film layer is 50 nm-60 nm, the coating thickness of the second film layer is 5 nm-10 nm, the coating thickness of the third film layer is a silicon nitride layer, the coating thickness of the third film layer is 60 nm-80 nm, the coating thickness of the fourth film layer is 10 nm-12 nm, the coating thickness of the fifth film layer is 100 nm-120 nm, and the coating thickness of the fifth film layer is 100 nm-120 nm. Reflection, transmission and absorption of direct radiation of the sun are controlled according to the needed proportion, black reflection color is generated, and a good sight shielding function and an attractive effect are achieved.

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 decoration. Background Technique

[0002] With the development of modern science and technology, glass is endowed with various new connotations. One type of product is called decorative glass. As the name implies, decorative glass plays a decorative role. Now most home decorations will use decorative glass, and the functions of household glass vary according to different types. At present, most decorative glasses on the market are mainly colored printed glass, colored enamel glass, painted glass, and sandblasted glass. Most of these products have the disadvantages of high production cost, inability to perform large-panel continuous quantitative production, being toxic and harmful, and causing certain pollution to the environment.

[0003] The purpose of the present invention is to deposit one to multiple layers of metals or compounds on the surface of high-quality float glass by means of vacuum magnetron sputtering to form a thin film, avoiding the use of colored printed glass, colored enamel glass, painted glass, and sandblasted glass as decorative glass. The main function of the thin film is to control the reflection, transmission, and absorption of direct solar radiation in the required proportion and produce the required reflection color, having good line-of-sight shielding function and aesthetic effect, being non-toxic and harmless, and having the ability of continuous quantitative production.

[0004] Based on this, the utility model designs a coated glass applied to decoration to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a coated glass applied to decoration to solve the problem in the above background technique that one to multiple layers of metals or compounds are deposited on the surface of high-quality float glass by means of vacuum magnetron sputtering to form a thin film. The main function of the thin film is to control the reflection, transmission, and absorption of direct solar radiation in the required proportion and produce the required reflection color, having good line-of-sight shielding function and aesthetic effect.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A coated glass applied to decoration, wherein the coating layer is successively compounded with a first film layer, a second film layer, a third film layer, a fourth film layer, and a fifth film layer from the glass substrate outwards. The first film layer is set as a silicon nitride layer, the coating thickness of the first film layer is 50nm - 60nm, the second film layer is set as a nickel-chromium layer, the coating thickness of the second film layer is 5nm - 10nm, the third film layer is set as a silicon nitride layer, the coating thickness of the third film layer is 60nm - 80nm, the fourth film layer is set as a nickel-chromium layer, the coating thickness of the fourth film layer is 10nm - 12nm, the fifth film layer is set as a silicon nitride layer, and the coating thickness of the fifth film layer is 100nm - 120nm.

[0007] Preferably, the sum of the thicknesses of the first film layer, the second film layer, the third film layer, the fourth film layer and the fifth film layer is not less than 220 nm and not more than 260 nm.

[0008] A method for preparing the coated glass applied to decoration, the method comprising the following steps: performing vacuum magnetron sputtering on the surface of a glass substrate with a target in a vacuum environment to sequentially form a first film layer, a second film layer, a third film layer, a fourth film layer and a fifth film layer;

[0009] 1), magnetron sputtering coating layer;

[0010] A. Magnetron sputtering the first film layer:

[0011] Number of targets: 3 AC rotating targets; Target configuration: silicon-aluminum (SiAl); Process gas ratio: argon and nitrogen, and the ratio of argon to nitrogen is 1:1.3; Sputtering pressure is 5-6×10-3 mbar;

[0012] B. Magnetron sputtering the second film layer:

[0013] Number of targets: 1 DC planar target; Target configuration: nickel-chromium (NiCr); Process gas ratio: pure argon; Sputtering pressure is 2-7×10-3 mbar;

[0014] C. Magnetron sputtering the third film layer:

[0015] Number of targets: 4 AC rotating targets; Target configuration: silicon-aluminum (SiAl); Process gas ratio: argon and nitrogen, and the ratio of argon to nitrogen is 1:1.3; Sputtering pressure is 5-6×10-3 mbar;

[0016] D. Magnetron sputtering the fourth film layer:

[0017] Number of targets: 2 DC planar targets; Target configuration: nickel-chromium (NiCr); Process gas ratio: pure argon; Sputtering pressure is 2-7×10-3 mbar;

[0018] E. Magnetron sputtering the fifth film layer:

[0019] Number of targets: 6 AC rotating targets; Target configuration: silicon-aluminum (SiAl); Process gas ratio: argon and nitrogen, and the ratio of argon to nitrogen is 1:1.3; Sputtering pressure is 5-6×10-3 mbar;

[0020] Preferably, the transmission speed of the sputtering chamber is controlled at 3 m / min.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows: in the coated glass, the second film layer and the fourth film layer are set as nickel-chromium layers, and the third film layer of silicon nitride (SiNx) layer is set between the two nickel-chromium (NiCr) layers of the second film layer and the fourth film layer. The nickel-chromium (NiCr) material has a high absorption rate. The superposition of two layers of nickel-chromium can greatly improve the light trapping effect, so that the coated glass has the optical properties of low light transmittance, low reflection and high absorption. The middle silicon nitride (SiNx) layer plays a role in separating the nickel-chromium layers, which is the key to achieving high absorption and low reflection of the coated glass. In addition, the silicon nitride (SiNx) layers of the third film layer, the first film layer and the fifth film layer also play a color adjustment role, which is the key to achieving the black glass surface. The specific 6mm single-piece parameters are as follows: Light transmittance color T∈[8,12],a*∈[1,-2],b*∈[-1,-9];visible light glass surface reflection color Lg∈[25,28],a*∈[0,-1],b*∈[0,-1];visible light film surface reflection color Lf∈[65,75],a*∈[0,-2],b*∈[0,-3]. The coated glass has low reflectivity, visible light transmittance is about 12%, and the film surface has high reflectivity. The glass surface reflection color is black, the film surface reflection color is silver mirror effect, the film layer has high chemical stability and thermal stability, and can be used as a single piece. It has good sight shielding function and aesthetic effect. It is used for decorative glass, is non-toxic and harmless, does not pollute the environment, and has the ability of continuous quantitative production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the layered structure of the coated glass.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-first film layer, 2-second film layer, 3-third film layer, 4-fourth film layer, 5-fifth film layer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 The utility model provides a technical solution: a coated glass for decoration, comprising a glass substrate and a coating layer, wherein the coating layer is compounded with a first film layer 1, a second film layer 2, a third film layer 3, a fourth film layer 4 and a fifth film layer 5 in sequence from the glass substrate to the outside, the first film layer 1 is set as a silicon nitride layer, and the coating thickness of the first film layer 1 is 50nm-60nm, the second film layer 2 is set as a nickel-chromium layer, and the coating thickness of the second film layer 2 is 5nm-10nm, the third film layer 3 is set as a silicon nitride layer, and the coating thickness of the third film layer 3 is 60nm-80nm, the fourth film layer 4 is set as a nickel-chromium layer, and the coating thickness of the fourth film layer 4 is 10nm-12nm, the fifth film layer 5 is set as a silicon nitride layer, and the coating thickness of the fifth film layer 5 is 100nm-120nm.

[0028] Wherein, the sum of the thicknesses of the first film layer, the second film layer, the third film layer, the fourth film layer and the fifth film layer is not less than 220nm and not greater than 260nm.

[0029] In the coated glass, the second film layer 2 and the fourth film layer 4 are set as nickel-chromium layers, and the third film layer 3 of silicon nitride (SiNx) layer is set between the two nickel-chromium (NiCr) layers of the second film layer 2 and the fourth film layer 4. The nickel-chromium (NiCr) material has a high absorption rate. The superposition of two layers of nickel-chromium can greatly improve the light trapping effect, so that the coated glass has the optical properties of low light transmittance, low reflection and high absorption. The middle silicon nitride (SiNx) layer plays a role in separating the nickel-chromium layers, which is the key to achieving high absorption and low reflection of the coated glass. In addition, the silicon nitride (SiNx) layers of the third film layer 3, the first film layer 1 and the fifth film layer 5 also play a color adjustment role, which is the key to achieving the black glass surface. The specific 6mm single-piece parameters are: visible light transmittance color T∈ [8, 12], a*∈[1, -2], b*∈[-1, -9]; visible light glass surface reflection color Lg∈[25, 28], a*∈[0, -1], b*∈[0, -1]; visible light film surface reflection color Lf∈[65, 75], a*∈[0, -2], b*∈[0, -3]. The coated glass has low reflectivity, visible light transmittance is about 12%, and the film surface has high reflectivity. The glass surface reflection color is black, the film surface reflection color is silver mirror effect, the film layer has high chemical stability and thermal stability, and can be used in a single piece. It has good sight shielding function and aesthetic effect. It is used for decorative glass. It is non-toxic and harmless, does not pollute the environment, and has the ability of continuous quantitative production.

[0030] A method for preparing coated glass for decoration, the method comprising the following steps: performing vacuum magnetron sputtering on the surface of a glass substrate with a target material under a vacuum environment, and sputtering in sequence to form a first film layer, a second film layer, a third film layer, a fourth film layer and a fifth film layer;

[0031] 1), magnetron sputtering coating layer;

[0032] A, the first magnetron sputtering film layer:

[0033] Number of targets: 3 AC rotating targets; Target configuration: silicon-aluminum (SiAl); Process gas ratio: argon and nitrogen, and the ratio of argon to nitrogen is 1:1.3; Sputtering pressure is 5 - 6×10-3 mbar;

[0034] B, the second magnetron sputtering film layer:

[0035] Number of targets: 1 DC planar target; Target configuration: nickel-chromium (NiCr); Process gas ratio: pure argon; Sputtering pressure is 2 - 7×10-3 mbar;

[0036] C, the third magnetron sputtering film layer:

[0037] Number of targets: 4 AC rotating targets; Target configuration: silicon-aluminum (SiAl); Process gas ratio: argon and nitrogen, and the ratio of argon to nitrogen is 1:1.3; Sputtering pressure is 5 - 6×10-3 mbar;

[0038] D, the fourth magnetron sputtering film layer:

[0039] Number of targets: 2 DC planar targets; Target configuration: nickel-chromium (NiCr); Process gas ratio: pure argon; Sputtering pressure is 2 - 7×10-3 mbar;

[0040] E, the fifth magnetron sputtering film layer:

[0041] Number of targets: 6 AC rotating targets; Target configuration: silicon-aluminum (SiAl); Process gas ratio: argon and nitrogen, and the ratio of argon to nitrogen is 1:1.3; Sputtering pressure is 5 - 6×10-3 mbar;

[0042] The transmission speed of the sputtering chamber is controlled at 3 m / min.

[0043] The glass substrate is float glass with a thickness of 3 - 12 mm.

[0044] Examples 1 - 4

[0045] A coated glass for decoration and its preparation method, comprising the following steps:

[0046] A: Select a glass substrate, cut it with a cutting machine according to a predetermined size, with the air side of the substrate facing up, clean it with a cleaning machine, and dry the moisture with an air knife;

[0047] B: Feed the cleaned substrate into the vacuum magnetron sputtering chamber, and sputter each coating layer in sequence, and the specific parameters are shown in Table 1

[0048] Table 1

[0049]

[0050]

[0051] The optical properties of the glass prepared in the above Examples 1-4 were measured, and the test results are shown in Table 2 as follows:

[0052] Table 2

[0053] Example 1 Example 2 Example 3 Example 4 Visible light transmittance (%) 8.5 9.2 11.1 11.8 Transmitted color a* value 0.2 0.8 -0.9 -1.3 Transmitted color b* value -8.2 -5.3 -2.2 -3.4 Glass surface reflection luminance L* value 27.8 26.6 26.4 25.2 Glass surface reflection color a* value -1.3 1.5 0.8 -0.2 Glass surface reflection color b* value 1.8 -1.2 -0.5 0.2 Film surface reflection luminance L* value 74.6 68.2 72.7 73.5 Film surface reflection color a* value -1.8 1.2 0.9 -0.3 Film surface reflection color b* value -2.2 -0.2 -1.3 -2.8

[0054] 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 may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0055] 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. This specification selects and specifically describes these embodiments in order 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 decoration, 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), a fourth film layer (4) and a fifth film layer (5) from the glass substrate outwards. The first film layer (1) is set as a silicon nitride layer, the coating thickness of the first film layer (1) is 50 nm to 60 nm, the second film layer (2) is set as a nickel-chromium layer, the coating thickness of the second film layer (2) is 5 nm to 10 nm, the third film layer (3) is set as a silicon nitride layer, the coating thickness of the third film layer (3) is 60 nm to 80 nm, the fourth film layer (4) is set as a nickel-chromium layer, the coating thickness of the fourth film layer (4) is 10 nm to 12 nm, and the fifth film layer (5) is set as a silicon nitride layer, the coating thickness of the fifth film layer (5) is 100 nm to 120 nm.

2. The coated glass applied to decoration according to claim 1, wherein: The sum of the thicknesses of the first film layer, the second film layer, the third film layer, the fourth film layer and the fifth film layer is not less than 220 nm and not greater than 260 nm.

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