Glass cleaning agent as well as preparation method and application thereof

Abstract

The invention relates to the technical field of glass treatment, in particular to a glass cleaning agent and a preparation method and application thereof. The glass cleaning agent comprises the following components in percentage by mass: 15%-25% of a silane coupling agent, 15%-25% of a surfactant and 50%-70% of absolute ethyl alcohol. According to the glass cleaning agent provided by the invention, the bonding force between organic matters such as printing ink or paint and the glass surface can be improved, the technical problem that the glass surface is difficult to attach is solved, the glass cleaning agent only needs to be directly added into a water tank of a glass cleaning machine in the use process, and the glass surface is treated while the glass is cleaned; the adhesive strength of the glass surface is increased, the requirements of large-scale industrial production are met, and industrial mass production is realized.

Description

Technical Field

[0001] This invention relates to the field of glass processing technology, and in particular to a glass cleaning agent, its preparation method, and its application. Background Technology

[0002] In today's society, glass, with its unique transparency, aesthetics, and durability, is increasingly widely used in daily life, and many products choose glass as a door panel material. This trend has led to the rapid development of the glass deep processing industry, especially with the ever-increasing requirements for glass surface treatment.

[0003] Glass itself possesses high hardness, high density, and an extremely smooth surface. This characteristic makes it difficult to achieve complete adhesion between the ink layer and the glass surface during processes such as color printing, texture screen printing, and UV printing. With the large-scale application of glass doors, the market demand for deep processing of glass surfaces is constantly increasing, with expectations for richer colors, diverse patterns, and unique styles. However, the chemical properties of glass dictate that its surface is smooth, flat, and has high tensile strength, making it difficult for ordinary inks and other coating materials to form good adhesion on the glass surface. This has become a major technical challenge in the glass surface treatment process.

[0004] Currently, existing technologies for addressing the problem of difficult adhesion to glass typically employ the method of wiping on adhesion enhancers to improve bonding strength. However, this process has significant drawbacks: it is not only inefficient and requires a large amount of manual labor, but uneven application can also result in a large number of defective products. Furthermore, for some color-sensitive glass products, traces left by the wiping enhancer can be seen. These problems make existing processes unsuitable for large-scale industrial production and prevent mass production. Therefore, there is an urgent need for a more efficient, reliable, and industrially suitable glass surface treatment technology to solve the problem of difficult adhesion to glass surfaces. Summary of the Invention In order to solve the above-mentioned technical problems in the prior art, the present invention provides a glass cleaning agent, its preparation method and application.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: The first aspect of the present invention is to provide a glass cleaner comprising, by weight percentage: 15% to 25% silane coupling agent, 15% to 25% surfactant, and 50% to 70% anhydrous ethanol.

[0006] This invention provides a glass cleaner that improves adhesion. The silane coupling agent has the molecular formula RSiX3. Utilizing an organosilicon compound containing two different chemical groups within its molecule, the silane coupling agent possesses reactive groups capable of chemically bonding with both inorganic materials (such as glass, silica sand, and metals) and organic materials (synthetic resins). This creates a "molecular bridge" between the inorganic and organic interfaces, thus connecting the two materials with different properties. Glass is an inorganic material, while printing inks or coatings are synthetic resins. Lipid-based organic compounds, such as alkoxy groups in silane coupling agents, can generate hydroxyl groups after hydrolysis, which can form good hydrogen bonds with glass substrates. Organic groups such as alkoxy and amino groups can form good hydrogen bonds and van der Waals forces with synthetic resins. Therefore, cleaning agents containing silane coupling agents can act as bridging agents and enhance adhesion. Surfactants can effectively remove oil and impurities from glass surfaces. Anhydrous ethanol, as a polar solvent, can effectively disperse surfactants and silane coupling agents into a unified whole, while improving the wetting effect of fluorinated surfactants and silane coupling agents on the substrate, and also has a certain cleaning effect.

[0007] Based on the above technical solution, the present invention can also be improved as follows: Furthermore, the silane coupling agent is selected from at least one of epoxy-containing silane coupling agents, amino-containing silane coupling agents, or (meth)acryloyloxy-containing silane coupling agents; preferably KH-560, KH-550, or KH-570.

[0008] The KH-560 has the following structural formula: ; The KH-550 has the following structural formula: ; The KH-570 has the following structural formula: .

[0009] Furthermore, the surfactant is selected from any one or more of alkylbenzene sulfonates, alkyl sulfonates, alkyl sulfonates, alkyl sulfates, fluorinated fatty acid salts, polysiloxanes, fatty alcohol sulfates, fatty alcohol polyoxyethylene ethers, α-alkenyl sulfonates, fatty alcohol polyoxyethylene ether phosphates, alkylolamides, alkyl sulfonate acetamides, alkyl succinate sulfonates, alkanolamine alkylbenzene sulfonates, naphthenates, alkylphenol sulfonates, and polyoxyethylene monolaurates.

[0010] The second aspect of the present invention is to provide a method for preparing the glass cleaning agent provided in the first aspect of the present invention, comprising the following steps: adding anhydrous ethanol to a reaction vessel, then adding a silane coupling agent and a surfactant in sequence, stirring at room temperature for 20 to 30 minutes to prepare the glass cleaning agent.

[0011] A third aspect of the present invention is to provide the application of the glass cleaning agent provided in the first aspect of the present invention in glass surface treatment.

[0012] Furthermore, the glass cleaning agent and water are added to the water tank of the glass cleaning machine, wherein the amount of glass cleaning agent added is 3% to 10% of the mass of water.

[0013] Another aspect of the present invention is to provide a glass obtained by treating it with the glass cleaning agent provided in the first aspect of the present invention.

[0014] Furthermore, after the glass is treated with the glass cleaning agent, ink or coating is adhered to its surface.

[0015] Furthermore, the ink or coating is bonded to the glass surface using a photocuring process.

[0016] Compared with the prior art, the present invention has the following technical effects: This invention provides a glass cleaning agent that can improve the adhesion of organic substances such as printing inks or coatings to the glass surface, solving the technical problem of poor adhesion to the glass surface. In use, the glass cleaning agent only needs to be added directly to the water tank of the glass cleaning machine. While cleaning the glass, the glass surface is also treated, increasing the adhesion of the glass surface, meeting the needs of large-scale industrial production, and realizing industrial mass production. Attached Figure Description

[0017] Figure 1 The peeling condition of glass printed with acrylic ink in Example 1 of the present invention; Figure 2 The peeling condition of glass printed with acrylic ink in Example 2 of the present invention; Figure 3 The peeling condition of glass printed with acrylic ink in Example 3 of the present invention; Figure 4 The peeling of glass printed with acrylic ink is shown in Comparative Example 1 of the present invention. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to this embodiment. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0019] Example 1 The glass cleaner has the following composition: 20% silane coupling agent KH-560, 20% fatty alcohol polyoxyethylene ether AEO-9, and 60% anhydrous ethanol.

[0020] The preparation steps are as follows: Anhydrous ethanol is added to the reaction vessel, and then silane coupling agent KH-560 and fatty alcohol polyoxyethylene ether AEO-9 are added in sequence according to the ratio. The mixture is stirred at room temperature for 25 minutes to prepare the glass cleaning agent.

[0021] Add the above-mentioned glass cleaner to the water tank of the glass cleaning machine, with the amount of cleaner added being 5% of the water mass. Then, use the cleaning machine with the added glass cleaner to clean the glass surface. The alkoxy groups in the silane coupling agent molecule are hydrolyzed to obtain silanol groups, which then react with the hydroxyl groups on the glass surface to form chemical bonds.

[0022] A UV-curable acrylic ink was transferred onto the cleaned glass surface. The ink curing process involved first curing with a 365nm LED lamp at a curing energy of 1000mJ / cm². 2 Then, it is cured at 150℃ for 8 minutes to obtain glass printed with acrylic ink.

[0023] Example 2 The glass cleaner has the following composition: 15% silane coupling agent KH-550, 15% fatty alcohol polyoxyethylene ether phosphate AEO-3P, and 70% anhydrous ethanol.

[0024] The preparation steps are as follows: Anhydrous ethanol is added to the reaction vessel, and then silane coupling agent KH-550 and fatty alcohol polyoxyethylene ether phosphate AEO-3P are added in sequence according to the ratio. The mixture is stirred at room temperature for 20-30 minutes to prepare the glass cleaning agent.

[0025] Add the glass cleaner to the water tank of the glass cleaning machine, with the amount of cleaner added being 5% of the water mass. Then use the cleaning machine with the added glass cleaner to clean the glass surface.

[0026] A UV-curable acrylic ink was transferred onto the cleaned glass surface. The ink curing process involved first curing with a 365nm LED lamp at a curing energy of 1000mJ / cm². 2 Then, it is cured at 150℃ for 8 minutes to obtain glass printed with acrylic ink.

[0027] Example 3 The glass cleaner has the following composition: 25% silane coupling agent KH-570, 25% polyoxyethylene laurate LAE-9, and 50% anhydrous ethanol.

[0028] The preparation steps are as follows: Anhydrous ethanol is added to the reaction vessel, and then silane coupling agent KH-570 and polyoxyethylene laurate LAE-9 are added in sequence according to the ratio. The mixture is stirred at room temperature for 20-30 minutes to prepare the glass cleaning agent.

[0029] Add the glass cleaner to the water tank of the glass cleaning machine, with the amount of cleaner added being 5% of the water mass. Then use the cleaning machine with the added glass cleaner to clean the glass surface.

[0030] A UV-curable acrylic ink was transferred onto the cleaned glass surface. The ink curing process involved first curing with a 365nm LED lamp at a curing energy of 1000mJ / cm². 2 Then, it is cured at 150℃ for 8 minutes to obtain glass printed with acrylic ink.

[0031] Comparative Example 1 The glass surface was cleaned using a cleaning machine without the aforementioned glass cleaning agent.

[0032] A UV-curable acrylic ink was transferred onto the cleaned glass surface. The ink curing process involved first curing with a 365nm LED lamp at a curing energy of 1000mJ / cm². 2 Then, it is cured at 150℃ for 8 minutes to obtain glass printed with acrylic ink.

[0033] Performance testing The adhesion of ink to glass was tested according to GB / T 9286-2021 "Cross-cut test for paints and varnishes". The results are as follows: Figure 1-4 As shown in Table 1, where, Figure 1-3The photos show the results of the cross-cut test in Examples 1-3, respectively. They show that the ink in all the cross-cut areas is well adhered to the glass surface with no obvious peeling. The peeling area is 0% and the hardness of the ink layer reaches 3H. Figure 4 The photograph shows the test results for Comparative Example 1. It is evident that a large amount of ink has peeled off within the marked area, with a peeling area exceeding 65%. Although its ink hardness is also 3H, the adhesion is significantly reduced. In summary, the inks of Examples 1-3 exhibit excellent adhesion to glass while maintaining a hardness of 3H; while the ink of Comparative Example 1 shows significantly insufficient adhesion.

[0034] Table 1 Performance test results of the examples and comparative examples

[0035] This invention can be directly added to the water tank of the cleaning machine and used in conjunction with water. It is very convenient to use, suitable for industrial mass production, low in cost, high in efficiency, and saves labor. While cleaning glass, it also treats the adhesion of the glass surface, improving the product yield.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A glass cleaner, characterized in that, By mass percentage, it comprises the following components: 15%–25% silane coupling agent, 15%–25% surfactant, and 50%–70% anhydrous ethanol.

2. The glass cleaner according to claim 1, characterized in that, The silane coupling agent is selected from at least one of epoxy-containing silane coupling agents, amino-containing silane coupling agents, or (meth)acryloyloxy-containing silane coupling agents.

3. The glass cleaner according to claim 1, characterized in that, The surfactant is selected from any one or more of alkylbenzene sulfonates, alkyl sulfonates, alkyl sulfonates, alkyl sulfates, fluorinated fatty acid salts, polysiloxanes, fatty alcohol sulfates, fatty alcohol polyoxyethylene ethers, α-alkenyl sulfonates, fatty alcohol polyoxyethylene ether phosphates, alkylolamides, alkyl sulfonate acetamides, alkyl succinate sulfonates, alkanolamine alkylbenzene sulfonates, naphthenates, alkylphenol sulfonates, and polyoxyethylene monolaurates.

4. A method for preparing the glass cleaning agent according to any one of claims 1 to 3, characterized in that, The process includes the following steps: adding anhydrous ethanol to a reaction vessel, then adding a silane coupling agent and a surfactant in sequence, and stirring at room temperature for 20-30 minutes to prepare a glass cleaning agent.

5. The application of the glass cleaner according to any one of claims 1 to 3 in glass surface treatment.

6. The application according to claim 5, characterized in that, The glass cleaning agent is added to the water tank of the glass cleaning machine, and the amount of glass cleaning agent added is 3% to 10% of the mass of water.

7. A type of glass, characterized in that, It is obtained by treatment with the glass cleaning agent according to any one of claims 1 to 3.

8. The glass according to claim 7, characterized in that, After the glass is treated with the glass cleaning agent, ink or coating is adhered to its surface.

9. The glass according to claim 8, characterized in that, The ink or coating is bonded to the glass surface using a photocuring process.

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