Champagne low-radiation three-silver coated glass
By adding a metal absorbing layer and an alloy absorbing layer in the tri-silver coated glass and optimizing the film layer structure, the problem of difficulty in taking into account the external inverting of champagne color, metal texture and excellent optical properties in the prior art, achieving high transparency and low inversion characteristics and low emissivity.
Patent Information
- Application Number
- CN202411925360.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-04-18
AI Technical Summary
The existing three-silver coated glass is difficult to take into account the champagne color external inverter, metal texture, excellent optical performance and low transmittance, resulting in an increase in radiation rate and a weakening ability to reflect infrared heat.
The ultra-low energy consumption three-silver film layer structure is adopted to add metal absorbing layer and alloy absorbing layer, and the thickness and composition of the film layer are optimized through the rational assembly of the anti-reflection film layer and the absorption film layer to achieve the characteristics of high transparency and low reverse.
It has achieved high transmittance (higher than 42%) and low reflectance (lower than 15%) of Champagne-colored low-radiation tri-silver coated glass, and has moderate glass surface reflectivity, ultra-low energy consumption and low emissivity, which is suitable for building curtain wall glass.
Smart Images
Figure CN119841557A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of coated glass, and in particular relates to a champagne-colored low-radiation triple-silver coated glass. Background Art
[0002] Triple-silver coated glass is a high-grade coated glass with three layers of silver on the surface of the glass. It is also called triple-silver Low-E glass. It is widely used in construction, automobiles, electronics and other fields because of its excellent heat insulation, light transmission and sun shading properties.
[0003] In architecture, it can be used for the exterior walls and glass curtain walls of high-end residential buildings, commercial buildings, etc. When used as glass curtain walls, the common colors of triple-silver coated glass are light blue, gray, blue-gray, green, etc., but champagne-colored glass curtain walls are rarely seen.
[0004] Champagne color has a noble metallic texture. Champagne color films are generally achieved by reducing reflection and increasing transmittance and increasing absorption. However, when absorption increases, the ability to reflect infrared heat also decreases, and the emissivity increases. Conventional film structures are difficult to balance the requirements of superior optical performance and low transmittance of champagne color. Summary of the invention
[0005] In order to solve the above technical problems, the present invention provides a champagne-colored low-emissivity triple-silver coated glass, whose external reflected color is champagne color, has a metallic texture, and has the characteristics of high transmittance and low reflection. The transmittance is higher than 42% and the reflectivity is lower than 15%, and can be widely used as building curtain wall glass.
[0006] The technical solution adopted by the present invention is as follows:
[0007] A champagne-colored low-radiation triple-silver coated glass, which comprises, from bottom to top, a glass substrate, a bottom protective layer, a metal absorption layer, a dielectric isolation layer, a first dielectric anti-oxidation layer, a first silver layer, a first alloy absorption layer, a second dielectric anti-oxidation layer, a first dielectric interference layer, a third dielectric anti-oxidation layer, a second silver layer, a second alloy absorption layer, a fourth dielectric anti-oxidation layer, a second dielectric interference layer, a fifth dielectric anti-oxidation layer, a third silver layer, a third alloy absorption layer, a sixth dielectric anti-oxidation layer, a third dielectric interference layer, and a top protective layer.
[0008] The first silver layer, the second silver layer and the third silver layer are composed of Ag or a mixture of Ag and at least one of Au and Cu; the thicknesses of the first silver layer, the second silver layer and the third silver layer are 9-10nm, 10-15nm and 15-17nm respectively.
[0009] The bottom protective layer is Si 3 N 4layer or ceramic titanium layer; the thickness of the bottom protective layer is 10 to 20 nm.
[0010] The metal absorption layer is a nickel-chromium layer, a cadmium nitride layer, a cobalt layer or a stainless steel layer; the thickness of the metal absorption layer is 1-5 nm.
[0011] The dielectric isolation layer is a titanium oxide layer or a silicon nitride layer; the thickness of the dielectric isolation layer is 20-30 nm.
[0012] The first dielectric anti-oxidation layer, the third dielectric anti-oxidation layer, and the fifth dielectric anti-oxidation layer are all AZO layers or ZnO layers; the thickness of the first dielectric anti-oxidation layer is 10-15 nm; the thickness of the third dielectric anti-oxidation layer and the fifth dielectric anti-oxidation layer are all 5-10 nm.
[0013] The second dielectric anti-oxidation layer, the fourth dielectric anti-oxidation layer and the sixth dielectric anti-oxidation layer are all AZO layers or titanium oxide layers; the thickness of the second dielectric anti-oxidation layer, the fourth dielectric anti-oxidation layer and the sixth dielectric anti-oxidation layer are all 5-10 nm.
[0014] The first alloy absorption layer, the second alloy absorption layer and the third alloy absorption layer are all NiCr layers or nickel-chromium oxide layers; the thickness of the first alloy absorption layer, the second alloy absorption layer and the third alloy absorption layer are all 0.5-1.0 nm.
[0015] The first dielectric interference layer, the second dielectric interference layer, and the third dielectric interference layer are all ZnSnO layers or Si 3 N 4 layer; the thicknesses of the first dielectric interference layer, the second dielectric interference layer, and the third dielectric interference layer are 55-65 nm, 50-60 nm, and 15-30 nm, respectively.
[0016] The top protective layer is SiO 2 layer, TiO x Layer or ZrO 2 layer, the thickness of which is 5 to 15 nm.
[0017] The present invention also provides a hollow glass, wherein the hollow glass is made of the champagne-colored low-radiation triple-silver coated glass of the present invention.
[0018] The champagne-colored low-radiation triple-silver coated glass provided by the present invention is based on an ultra-low energy consumption triple-silver film layer structure, a metal absorption layer and an alloy absorption layer are added to the film layer structure, and the weakening of the ability to reflect infrared heat and the increase of the emissivity due to the increased absorption are compensated through the reasonable combination of the anti-reflection film layer and the absorption film layer; the glass can achieve more superior optical properties and low emissivity, and make up for the shortcoming of excessive reflectivity and light pollution caused by traditionally increasing the metallic texture.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] The champagne-colored low-emissivity triple-silver coated glass provided by the present invention has a champagne-colored external reflected color and has the characteristics of high transmittance and low reflection. Its transmittance is higher than 42% and its reflectivity is lower than 15%. When used as building curtain wall glass, it has a metallic texture, moderate glass surface reflectivity, ultra-low energy consumption and low emissivity. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the structure of the champagne-colored low-emissivity triple-silver coated glass of the present invention;
[0022] Among them, 1-glass substrate, 2-bottom protective layer, 3-metal absorption layer, 4-dielectric isolation layer, 5-first dielectric anti-oxidation layer, 6-first silver layer, 7-first alloy absorption layer, 8-second dielectric anti-oxidation layer, 9-first dielectric interference layer, 10-third dielectric anti-oxidation layer, 11-second silver layer, 12-second alloy absorption layer, 13-fourth dielectric anti-oxidation layer, 14-second dielectric interference layer, 15-fifth dielectric anti-oxidation layer, 16-third silver layer, 17-third alloy absorption layer, 18-sixth dielectric anti-oxidation layer, 19-third dielectric interference layer, 20-top protective layer. DETAILED DESCRIPTION
[0023] The present invention provides a champagne-colored low-emissivity triple-silver coated glass, which comprises, from bottom to top, a glass substrate, a bottom protective layer, a metal absorption layer, a dielectric isolation layer, a first dielectric anti-oxidation layer, a first silver layer, a first alloy absorption layer, a second dielectric anti-oxidation layer, a first dielectric interference layer, a third dielectric anti-oxidation layer, a second silver layer, a second alloy absorption layer, a fourth dielectric anti-oxidation layer, a second dielectric interference layer, a fifth dielectric anti-oxidation layer, a third silver layer, a third alloy absorption layer, a sixth dielectric anti-oxidation layer, a third dielectric interference layer, and a top protective layer.
[0024] The first silver layer, the second silver layer and the third silver layer are composed of Ag or a mixture of Ag and at least one of Au and Cu; the thicknesses of the first silver layer, the second silver layer and the third silver layer are 9-10nm, 10-15nm and 15-17nm respectively.
[0025] The bottom protective layer is Si 3 N 4 layer or ceramic titanium layer; the thickness of the bottom protective layer is 10 to 20 nm.
[0026] The metal absorption layer is a nickel-chromium layer, a cadmium nitride layer, a cobalt layer or a stainless steel layer; the thickness of the metal absorption layer is 1-5 nm.
[0027] The dielectric isolation layer is a titanium oxide layer or a silicon nitride layer; the thickness of the dielectric isolation layer is 20-30 nm.
[0028] The first dielectric anti-oxidation layer, the third dielectric anti-oxidation layer, and the fifth dielectric anti-oxidation layer are all AZO layers or ZnO layers; the thickness of the first dielectric anti-oxidation layer is 10-15 nm; the thickness of the third dielectric anti-oxidation layer and the fifth dielectric anti-oxidation layer are all 5-10 nm.
[0029] The second dielectric anti-oxidation layer, the fourth dielectric anti-oxidation layer and the sixth dielectric anti-oxidation layer are all AZO layers or titanium oxide layers; the thickness of the second dielectric anti-oxidation layer, the fourth dielectric anti-oxidation layer and the sixth dielectric anti-oxidation layer are all 5-10 nm.
[0030] The first alloy absorption layer, the second alloy absorption layer and the third alloy absorption layer are all NiCr layers or nickel-chromium oxide layers; the thickness of the first alloy absorption layer, the second alloy absorption layer and the third alloy absorption layer are all 0.5-1.0 nm.
[0031] The first dielectric interference layer, the second dielectric interference layer, and the third dielectric interference layer are all ZnSnO layers or Si 3 N 4 layer; the thicknesses of the first dielectric interference layer, the second dielectric interference layer, and the third dielectric interference layer are 55-65 nm, 50-60 nm, and 15-30 nm, respectively.
[0032] The top protective layer is SiO 2 layer, TiO x Layer or ZrO 2 layer, the thickness of which is 5 to 15 nm.
[0033] The present invention is described in detail below with reference to the embodiments.
[0034] Example 1
[0035] A champagne-colored low-emissivity triple-silver coated glass comprises, from bottom to top, a glass substrate, a bottom protective layer, a metal absorption layer, a dielectric isolation layer, a first dielectric anti-oxidation layer, a first silver layer, a first alloy absorption layer, a second dielectric anti-oxidation layer, a first dielectric interference layer, a third dielectric anti-oxidation layer, a second silver layer, a second alloy absorption layer, a fourth dielectric anti-oxidation layer, a second dielectric interference layer, a fifth dielectric anti-oxidation layer, a third silver layer, a third alloy absorption layer, a sixth dielectric anti-oxidation layer, a third dielectric interference layer, and a top protective layer; the film layers and thicknesses thereof are shown in Table 1.
[0036] Table 1
[0037]
[0038]
[0039] Example 2
[0040] A champagne-colored low-emissivity triple-silver coated glass comprises, from bottom to top, a glass substrate, a bottom protective layer, a metal absorption layer, a dielectric isolation layer, a first dielectric anti-oxidation layer, a first silver layer, a first alloy absorption layer, a second dielectric anti-oxidation layer, a first dielectric interference layer, a third dielectric anti-oxidation layer, a second silver layer, a second alloy absorption layer, a fourth dielectric anti-oxidation layer, a second dielectric interference layer, a fifth dielectric anti-oxidation layer, a third silver layer, a third alloy absorption layer, a sixth dielectric anti-oxidation layer, a third dielectric interference layer, and a top protective layer; the film layers and thicknesses thereof are shown in Table 1.
[0041] Table 2
[0042] Film composition Film thickness / nm 6mm white glass / / Bottom layer Ceramic Titanium 18nm Metal absorption layer Chromium Nitride 5nm Dielectric isolation layer Silicon Nitride 26nm The first dielectric anti-oxidation layer ZnO 11nm First silver layer Ag 9~10nm First alloy absorption layer Nickel chromium oxide 0.8nm Second dielectric anti-oxidation layer Titanium oxide 6nm First dielectric interference layer <![CDATA[Si 3 N 4 Layer]]> 60nm The third dielectric anti-oxidation layer ZnO 6nm Second silver layer Ag 15nm Second alloy absorption layer Nickel chromium oxide 0.6nm Fourth dielectric anti-oxidation layer Titanium oxide 8nm Second dielectric interference layer <![CDATA[Si 3 N 4 ]]> 58nm Fifth dielectric anti-oxidation layer ZnO 6nm Third Silver Layer Ag 17nm The third alloy absorption layer Nickel chromium oxide 0.5nm Sixth dielectric anti-oxidation layer Titanium oxide 8nm The third dielectric interference layer <![CDATA[Si 3 N 4 ]]> 22nm Top protective layer <![CDATA[ZrO 2 ]]> 10nm
[0043] Example 3
[0044] A champagne-colored low-emissivity triple-silver coated glass comprises, from bottom to top, a glass substrate, a bottom protective layer, a metal absorption layer, a dielectric isolation layer, a first dielectric anti-oxidation layer, a first silver layer, a first alloy absorption layer, a second dielectric anti-oxidation layer, a first dielectric interference layer, a third dielectric anti-oxidation layer, a second silver layer, a second alloy absorption layer, a fourth dielectric anti-oxidation layer, a second dielectric interference layer, a fifth dielectric anti-oxidation layer, a third silver layer, a third alloy absorption layer, a sixth dielectric anti-oxidation layer, a third dielectric interference layer, and a top protective layer; the film layers and thicknesses thereof are shown in Table 3.
[0045] Table 3
[0046]
[0047]
[0048] Comparative Example 1
[0049] The rest is the same as in Example 1, except that the metal absorption layer and the dielectric isolation layer are omitted.
[0050] The color comparison of a single piece of champagne-colored low-emissivity triple-silver coated glass in the above embodiments is shown in Table 1.
[0051] Table 1 Color of single-piece triple-silver coated glass
[0052]
[0053] As can be seen from Table 1, the triple silver low-emissivity film prepared on 6mm white glass of the present invention has a champagne color on the glass surface, a visible light transmittance between 46.4% and 47.2%, a glass surface reflection between 11.6% and 12.2%, and a film surface reflection between 5.9% and 6.1%, and can be used as building curtain wall glass. The visible light transmittance of Comparative Example 1 is 42%, the glass surface reflection is 22%, and the film surface reflection is 15%.
[0054] The performance of the insulating glass made of the champagne-colored low-emissivity triple-silver coated glass in the above embodiments is shown in Table 2. The structure of the insulating glass is: 6mm triple-silver low-emissivity white glass (second side coating) / 12mm air space / 6mm white glass.
[0055] Table 2
[0056]
[0057] It can be seen from Table 2 that the visible light transmittance of the insulating glass made of the champagne-colored low-emissivity triple-silver coated glass of the present invention is between 42% and 43%, the glass surface reflection is between 13% and 14%, and the film surface reflection is between 11% and 12%. The low shading coefficient can effectively reflect thermal radiation, and the low heat transfer coefficient can well achieve thermal insulation performance, and the excellent light-to-heat ratio can be used as building curtain wall glass and the first choice for home decoration glass. It truly realizes a strong metallic texture in appearance, high saturation, and ultra-high optical and thermal properties. The visible light transmittance of the insulating glass made of the triple-silver coated glass in Comparative Example 1 is about 38%, the glass surface reflection is about 24%, and the film surface reflection is about 20%, and the performance is average.
[0058] The detailed description of a champagne-colored low-emissivity triple-silver coated glass with reference to the above embodiment is illustrative rather than restrictive, and several embodiments can be listed according to the limited scope. Therefore, changes and modifications without departing from the overall concept of the present invention should fall within the scope of protection of the present invention.
Claims
1. A champagne-colored low-emissivity triple-silver coated glass, characterized in that: The champagne-colored low-emissivity triple-silver coated glass includes, from bottom to top, a glass substrate, a bottom protective layer, a metal absorption layer, a dielectric isolation layer, a first dielectric anti-oxidation layer, a first silver layer, a first alloy absorption layer, a second dielectric anti-oxidation layer, a first dielectric interference layer, a third dielectric anti-oxidation layer, a second silver layer, a second alloy absorption layer, a fourth dielectric anti-oxidation layer, a second dielectric interference layer, a fifth dielectric anti-oxidation layer, a third silver layer, a third alloy absorption layer, a sixth dielectric anti-oxidation layer, a third dielectric interference layer, and a top protective layer.
2. The champagne-colored low-emissivity triple-silver coated glass according to claim 1, characterized in that: The first silver layer, the second silver layer and the third silver layer are composed of Ag or a mixture of Ag and at least one of Au and Cu; the thicknesses of the first silver layer, the second silver layer and the third silver layer are 9-10nm, 10-15nm and 15-17nm respectively.
3. The champagne-colored low-emissivity triple-silver coated glass according to claim 1 or 2, characterized in that: The bottom protective layer is a Si3N4 layer or a ceramic titanium layer; the thickness of the bottom protective layer is 10 to 20 nm.
4. The champagne-colored low-emissivity triple-silver coated glass according to claim 1 or 2, characterized in that: The metal absorption layer is a nickel-chromium layer, a cadmium nitride layer, a cobalt layer or a stainless steel layer; the thickness of the metal absorption layer is 1-5 nm.
5. The champagne-colored low-emissivity triple-silver coated glass according to claim 1 or 2, characterized in that: The dielectric isolation layer is a titanium oxide layer or a silicon nitride layer; the thickness of the dielectric isolation layer is 20-30 nm.
6. The champagne-colored low-emissivity triple-silver coated glass according to claim 1 or 2, characterized in that: The first dielectric anti-oxidation layer, the third dielectric anti-oxidation layer, and the fifth dielectric anti-oxidation layer are all AZO layers or ZnO layers; the thickness of the first dielectric anti-oxidation layer is 10-15 nm; the thickness of the third dielectric anti-oxidation layer and the fifth dielectric anti-oxidation layer are all 5-10 nm.
7. The champagne-colored low-emissivity triple-silver coated glass according to claim 1 or 2, characterized in that: The second dielectric anti-oxidation layer, the fourth dielectric anti-oxidation layer and the sixth dielectric anti-oxidation layer are all AZO layers or titanium oxide layers; the thickness of the second dielectric anti-oxidation layer, the fourth dielectric anti-oxidation layer and the sixth dielectric anti-oxidation layer are all 5-10 nm.
8. The champagne-colored low-emissivity triple-silver coated glass according to claim 1 or 2, characterized in that: The first alloy absorption layer, the second alloy absorption layer and the third alloy absorption layer are all NiCr layers or nickel-chromium oxide layers; the thickness of the first alloy absorption layer, the second alloy absorption layer and the third alloy absorption layer are all 0.5-1.0 nm.
9. The champagne-colored low-emissivity triple-silver coated glass according to claim 1 or 2, characterized in that: The first dielectric interference layer, the second dielectric interference layer, and the third dielectric interference layer are all ZnSnO layers or Si3N4 layers; the thicknesses of the first dielectric interference layer, the second dielectric interference layer, and the third dielectric interference layer are 55-65nm, 50-60nm, and 15-30nm, respectively.
10. A hollow glass, characterized in that: The insulating glass is made of the champagne-colored low-emissivity triple-silver coated glass described in any one of claims 1 to 9.