Manufacturing method of heat-insulating glass

Abstract

The invention discloses a manufacturing method of heat-insulating glass, which comprises the following steps of: coating a first coating containing polyurethane coating liquid and butyl acetate on one side of a glass layer, and curing the first coating to form a scratch-resistant layer so as to play a role in preventing the glass layer from being scratched; the other surface of the glass layer is coated with a second coating containing a hardening coating, an ultraviolet light absorber and an ultraviolet reflecting agent, and the second coating is cured to form an ultraviolet-proof layer so as to play a role in preventing ultraviolet rays; the metal sputtering layer is formed on the anti-ultraviolet layer by ion sputtering, so that the surface of the metal sputtering layer can reflect strong light, and the heat insulation effect is achieved; and a stripping layer is formed on the metal sputtering layer, so that a protection effect is achieved, and the stripping layer is removed during use.

Description

Technical Field

[0001] The invention relates to the technical field of glass, and in particular to a method for manufacturing heat-insulating glass. Background Art

[0002] At present, glass is used in various industries. With the development of various industries, the requirements for the use of glass are getting higher and higher. For example, the automotive industry and the construction industry have higher and higher requirements for car windows and building glass. Usually, film is applied on the outer surface of glass to improve the performance of glass, and there are more and more ways to apply film. Although there are many types of glass film, the quality of heat insulation performance of glass after film application needs to be improved. Summary of the invention

[0003] In order to solve the above technical problems, an embodiment of the present invention provides a method for manufacturing insulating glass, comprising:

[0004] Applying a first coating on one side of the glass layer and curing the first coating to form a scratch-resistant layer; wherein the first coating comprises a polyurethane coating liquid and butyl acetate;

[0005] Applying a second coating on the other side of the glass layer, and curing the second coating to form an anti-ultraviolet layer; wherein the second coating comprises a hardening coating, an ultraviolet absorber and an ultraviolet reflector;

[0006] forming a metal sputtering layer on the anti-ultraviolet layer by ion sputtering;

[0007] A release layer is formed on the metal sputtering layer.

[0008] As a preferred solution, the first coating comprises, by weight percentage, 60% polyurethane coating liquid and 40% butyl acetate.

[0009] As a preferred solution, the first coating is applied on one side of the glass layer, and the first coating is cured to form an anti-scratch layer, specifically comprising:

[0010] Applying a first coating on one side of the glass layer using an anilox wheel;

[0011] The first coating is cured by ultraviolet irradiation to form a scratch-resistant layer.

[0012] As a preferred solution, the ultraviolet absorber accounts for 10%-30% of the total weight of the second coating, and the ultraviolet reflector accounts for 1%-10% of the total weight of the second coating.

[0013] As a preferred embodiment, the ultraviolet absorber includes epoxy resin.

[0014] As a preferred embodiment, the solute in the ultraviolet reflector includes at least one of a metal and a metal oxide; the metal in the ultraviolet reflector is selected from aluminum and zinc, and the metal oxide in the ultraviolet reflector is selected from zinc oxide and titanium oxide; the ultraviolet reflector uses dibutyl ether and propylene glycol methyl ether as solvents; the ratio of the solute to the solution in the ultraviolet reflector is 7:3.

[0015] As a preferred solution, the target material used in the process of forming the metal sputtering layer on the anti-ultraviolet layer by ion sputtering is at least one of aluminum, copper, chromium, titanium and nickel.

[0016] As a preferred embodiment, after forming the metal sputtering layer on the anti-ultraviolet layer by ion sputtering, the method further comprises:

[0017] The metal sputtering layer and the anti-ultraviolet layer are subjected to a groove processing to form a plurality of grooves in the metal sputtering layer and the anti-ultraviolet layer.

[0018] As a preferred embodiment, after the metal sputtering layer and the anti-ultraviolet layer are grooved to form a plurality of grooves in the metal sputtering layer and the anti-ultraviolet layer, the method further comprises:

[0019] The plurality of grooves are filled with adhesive, and the adhesive is cured.

[0020] As a preferred solution, after filling the plurality of grooves with adhesive and curing the adhesive, the method further comprises:

[0021] A plurality of holes are formed in the cured adhesive.

[0022] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: the embodiments of the present invention provide a method for manufacturing heat-insulating glass, wherein a first coating containing a polyurethane coating and butyl acetate is coated on one side of a glass layer, and the first coating is solidified into an anti-scratch layer to prevent the glass layer from being scratched; a second coating containing a hardening coating, an ultraviolet absorber and an ultraviolet reflector is coated on the other side of the glass layer, and the second coating is solidified into an anti-ultraviolet layer to prevent ultraviolet rays; and a metal sputtering layer is formed on the anti-ultraviolet layer by ion sputtering so that its surface can reflect strong light, thereby achieving a heat-insulating effect; and a peeling layer is formed on the metal sputtering layer to protect it, and the peeling layer is removed when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic flow chart of a method for manufacturing heat-insulating glass in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 , which is a schematic flow chart of a method for manufacturing insulating glass in an embodiment of the present invention.

[0026] The method for manufacturing the heat-insulating glass according to the embodiment of the present invention comprises:

[0027] Step S101, applying a first coating on one side of the glass layer, and curing the first coating to form a scratch-resistant layer; wherein the first coating comprises a polyurethane coating liquid and butyl acetate;

[0028] Step S102, coating the other side of the glass layer with a second coating, and curing the second coating to form an anti-ultraviolet layer; wherein the second coating comprises a hardening coating, an ultraviolet absorber and an ultraviolet reflector;

[0029] Step S103, forming a metal sputtering layer on the anti-ultraviolet layer by ion sputtering;

[0030] Step S104, forming a peeling layer on the metal sputtering layer.

[0031] In an embodiment of the present invention, a first coating containing polyurethane coating and butyl acetate is coated on one side of the glass layer and cured to form an anti-scratch layer to prevent the glass layer from being scratched; a second coating containing a hardening coating, an ultraviolet absorber and an ultraviolet reflector is coated on the other side of the glass layer and cured to form an anti-ultraviolet layer to prevent ultraviolet rays; and a metal sputtering layer is formed on the anti-ultraviolet layer by ion sputtering so that its surface can reflect strong light, thereby achieving a heat-insulating effect; and a peeling layer is formed on the metal sputtering layer to protect it, and the peeling layer is removed when in use.

[0032] In the specific implementation, a scratch-resistant layer can be first formed on the glass layer, and then an anti-ultraviolet layer, a metal sputtering layer and a peeling layer are formed on the glass layer; or an anti-ultraviolet layer, a metal sputtering layer and a peeling layer can be first formed on the glass layer, and then an anti-scratch layer is formed on the glass layer. No further details will be given here.

[0033] In a specific implementation, the glass layer can be, for example, ordinary household glass or tempered glass. For example, household glass and tempered glass can be used in the construction industry, and tempered glass can be used in the automobile industry. Of course, the glass layer can also be made of other materials according to actual use requirements, which will not be described in detail here. In addition, in actual applications, the side with the anti-scratch layer can be facing the outside of the building or the outside of the car.

[0034] In an optional embodiment, the step S101 of "coating a first coating on one side of the glass layer and curing the first coating into a scratch-resistant layer" specifically includes:

[0035] Applying a first coating on one side of the glass layer using an anilox wheel;

[0036] The first coating is cured by ultraviolet irradiation to form a scratch-resistant layer.

[0037] In a specific implementation, the first coating comprises, by weight percentage, 60% polyurethane coating liquid and 40% butyl acetate, which can provide a good anti-scratch effect. Of course, the ratio of the polyurethane coating liquid to the butyl acetate can also be set to other values ​​according to actual use requirements, which will not be described in detail here.

[0038] In an optional embodiment, the step S102 of "coating a second coating on the other side of the glass layer and curing the second coating into an anti-ultraviolet layer" specifically includes:

[0039] Applying a second coating to the other side of the glass layer;

[0040] The glass layer coated with the second coating is dried and cured at a temperature of 80-90° C. to form an ultraviolet protection layer.

[0041] In this embodiment, the second coating is dried and cured at a temperature of 80-90° C. to form an anti-ultraviolet layer, thereby playing a role in anti-ultraviolet.

[0042] In a specific implementation, the ultraviolet absorber accounts for 10%-30% of the total weight of the second coating, for example, it can be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, etc. Of course, the percentage of the total weight of the ultraviolet absorber in the second coating can also be set to other values ​​according to actual use requirements, and no further details are given here. The ultraviolet reflector accounts for 1%-10% of the total weight of the second coating, for example, it can be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, etc. Of course, the percentage of the total weight of the ultraviolet reflector in the second coating can also be set to other values ​​according to actual use requirements, and no further details are given here. Exemplarily, the remainder is hardened coating.

[0043] Exemplarily, the ultraviolet absorber mainly includes epoxy resin. Of course, the ultraviolet absorber can also be made of other materials according to actual use requirements. It only needs to ensure that it has the function of absorbing ultraviolet rays. No further details will be given here.

[0044] Specifically, the solute in the ultraviolet reflector includes at least one of a metal and a metal oxide. Exemplarily, the metal in the ultraviolet reflector is selected from aluminum and zinc, and the metal oxide in the ultraviolet reflector is selected from zinc oxide and titanium oxide. The ultraviolet reflector uses dibutyl ether and propylene glycol methyl ether as solvents. The ratio of the solute to the solution in the ultraviolet reflector is 7:3. Of course, the ratio of the solute to the solution in the ultraviolet reflector can also be set to other values ​​according to actual use requirements, which will not be further elaborated here.

[0045] In an optional embodiment, the target material used in the process of forming the metal sputtering layer on the anti-ultraviolet layer by ion sputtering is at least one of aluminum, copper, chromium, titanium and nickel.

[0046] In an optional embodiment, the peeling layer is a PET film, the main component of which is polyethylene terephthalate. In a specific implementation, a coating can be applied on the surface of the metal sputtering layer or the PET film, and then the coating is dried and cured at 50-70° C. to connect the PET film to the metal sputtering layer, thereby protecting the metal sputtering layer.

[0047] In an optional embodiment, after forming the metal sputtering layer on the anti-ultraviolet layer by ion sputtering, the method further comprises:

[0048] The metal sputtering layer and the anti-ultraviolet layer are subjected to a groove processing to form a plurality of grooves in the metal sputtering layer and the anti-ultraviolet layer.

[0049] In specific implementation, metal materials have a certain shielding effect on signals. In this embodiment, by forming a plurality of grooves in the metal sputtering layer and the anti-ultraviolet layer, on the one hand, it can facilitate the passage of signals in actual use. For example, when the heat-insulating glass is used in indoor windows or car windows, in order to avoid the metal sputtering layer and the anti-ultraviolet layer blocking the signal, the grooves are provided to facilitate the smooth passage of signals, thereby improving the signal transmission capability. On the other hand, when the metal sputtering layer and the anti-ultraviolet layer expand due to heat, expansion space can be provided for them, thereby avoiding damage to the metal sputtering layer and the anti-ultraviolet layer.

[0050] In a specific implementation, for example, the metal sputtering layer and the anti-ultraviolet layer can be grooved by laser or other means to form a plurality of grooves in the metal sputtering layer and the anti-ultraviolet layer, and the grooves penetrate the metal sputtering layer and the anti-ultraviolet layer.

[0051] Exemplarily, the width of the groove is 45 to 95 μm, for example, 45 μm, 48 μm, 51 μm, 56 μm, 58 μm, 61 μm, 64 μm, 68 μm, 72 μm, 76 μm, 78 μm, 82 μm, 86 μm, 91 μm, 95 μm, etc., so as to avoid excessive blocking of the signal, ensure smooth transmission of the signal from the groove, and reduce the impact on the appearance of the insulating glass. Of course, the width of the groove can also be set to other values. Exemplarily, the spacing between each two adjacent grooves is 5 to 9 mm, for example, 5 mm, 5.4 mm, 5.8 mm, 6.1 mm, 6.3 mm, 6.6 mm, 6.8 mm, 7.1 mm, 7.3 mm, 7.6 mm, 7.8 mm, 8.1 mm, 8.3 mm, 8.7 mm, 9 mm, etc., so as to avoid excessive obstruction of the signal, ensure smooth transmission of the signal from the groove, and reduce the impact on the appearance of the insulating glass. Of course, other values ​​can also be set according to actual needs.

[0052] Furthermore, after the metal sputtering layer and the anti-ultraviolet layer are grooved to form a plurality of grooves in the metal sputtering layer and the anti-ultraviolet layer, the method further includes:

[0053] The plurality of grooves are filled with adhesive, and the adhesive is cured.

[0054] In this embodiment, the adhesive is, for example, an epoxy resin adhesive, a phenolic resin adhesive, etc. The adhesive has a certain elasticity and can provide a certain buffering capacity. When the metal sputtering layer and the anti-ultraviolet layer expand due to heat, a certain expansion buffer space can be provided for them; in addition, the adhesive does not block the signal much, so it will not affect its passage too much. In the specific implementation, the adhesive can be set to a desired color according to actual use requirements, for example, it can be set to a color close to the overall color of the insulating glass.

[0055] In the specific implementation, adhesive can be set in all the grooves as needed, or no adhesive can be set, or adhesive can be set in part of the grooves and not in the other part. Preferably, adhesive is set in part of the grooves and not in the other part, and the grooves with adhesive are arranged in sequence with the grooves with adhesive. On the one hand, the signal can pass smoothly, and on the other hand, the metal sputtering layer and the anti-ultraviolet layer can have a certain expansion buffer space when they are heated and expanded. In this way, the above two aspects of performance are taken into account at the same time.

[0056] Furthermore, after the adhesive is filled in the plurality of grooves and the adhesive is cured, the method further comprises:

[0057] A plurality of holes are formed in the cured adhesive.

[0058] In this embodiment, a plurality of holes are formed on the cured adhesive to facilitate better signal transmission, provide more expansion buffer space for the metal sputtering layer and the UV protection layer when heated, and facilitate heat dissipation of the insulating glass during actual use.

[0059] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: the embodiments of the present invention provide a method for manufacturing heat-insulating glass, wherein a first coating containing a polyurethane coating and butyl acetate is coated on one side of a glass layer, and the first coating is solidified into an anti-scratch layer to prevent the glass layer from being scratched; a second coating containing a hardening coating, an ultraviolet absorber and an ultraviolet reflector is coated on the other side of the glass layer, and the second coating is solidified into an anti-ultraviolet layer to prevent ultraviolet rays; and a metal sputtering layer is formed on the anti-ultraviolet layer by ion sputtering so that its surface can reflect strong light, thereby achieving a heat-insulating effect; and a peeling layer is formed on the metal sputtering layer to protect it, and the peeling layer is removed when in use.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A method for manufacturing heat-insulating glass, characterized in that: include: Applying a first coating on one side of the glass layer and curing the first coating to form a scratch-resistant layer; wherein the first coating comprises a polyurethane coating liquid and butyl acetate; Applying a second coating on the other side of the glass layer, and curing the second coating to form an anti-ultraviolet layer; wherein the second coating comprises a hardening coating, an ultraviolet absorber and an ultraviolet reflector; forming a metal sputtering layer on the anti-ultraviolet layer by ion sputtering; A release layer is formed on the metal sputtering layer.

2. The method for manufacturing heat-insulating glass according to claim 1, characterized in that: The first coating comprises, by weight percentage, 60% of polyurethane coating liquid and 40% of butyl acetate.

3. The method for manufacturing heat-insulating glass according to claim 2, characterized in that: The method of coating a first coating on one side of the glass layer and curing the first coating to form an anti-scratch layer specifically includes: Applying a first coating on one side of the glass layer using an anilox wheel; The first coating is cured by ultraviolet irradiation to form a scratch-resistant layer.

4. The method for manufacturing heat-insulating glass according to claim 1, wherein: The ultraviolet absorber accounts for 10%-30% of the total weight of the second coating, and the ultraviolet reflector accounts for 1%-10% of the total weight of the second coating.

5. The method for manufacturing heat-insulating glass according to claim 4, characterized in that: The ultraviolet absorber includes epoxy resin.

6. The method for manufacturing heat-insulating glass according to claim 4, characterized in that: The solute in the ultraviolet reflector includes at least one of a metal and a metal oxide; the metal in the ultraviolet reflector is selected from aluminum and zinc, and the metal oxide in the ultraviolet reflector is selected from zinc oxide and titanium oxide; the ultraviolet reflector uses dibutyl ether and propylene glycol methyl ether as solvents; the ratio of the solute to the solution in the ultraviolet reflector is 7:

3.

7. The method for manufacturing heat-insulating glass according to claim 1, wherein: The target material used in the process of forming the metal sputtering layer on the anti-ultraviolet layer by ion sputtering is at least one of aluminum, copper, chromium, titanium and nickel.

8. The method for manufacturing the heat-insulating glass according to any one of claims 1 to 7, characterized in that: After forming the metal sputtering layer on the anti-ultraviolet layer by ion sputtering, the method further comprises: The metal sputtering layer and the anti-ultraviolet layer are subjected to a groove processing to form a plurality of grooves in the metal sputtering layer and the anti-ultraviolet layer.

9. The method for manufacturing heat-insulating glass according to claim 8, characterized in that: After the metal sputtering layer and the anti-ultraviolet layer are grooved to form a plurality of grooves in the metal sputtering layer and the anti-ultraviolet layer, the method further includes: The plurality of grooves are filled with adhesive, and the adhesive is cured.

10. The method for manufacturing heat-insulating glass according to claim 9, characterized in that: After filling the plurality of grooves with adhesive and curing the adhesive, the method further comprises: A plurality of holes are formed in the cured adhesive.

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