TWI817012B - Method of preparing anti-bacteria fluid, anti-bacteria substrate, and anti-bacteria substrate thereof - Google Patents

Abstract

A method of preparing anti-bacterial fluid, anti-bacterial substrate, and the anti-bacteria substrate thereof are provided. The anti-bacterial material includes an organic additive and an inorganic additive. The preparing method of the anti-bacterial substrate includes following steps: step a, attaching the anti-bacterial fluid on the surface of one side of a glass carrier; step b, baking the glass carrier for solidifying the anti-bacteria fluid to form an anti-bacterial membrane one the side of the glass carrier. The anti-bacteria substrate is provided with the anti-bacterial membrane and a fingerprint-proof layer form on the surface of one side of the anti-bacterial membrane away from the glass carrier, achieving the anti-bacterial and pollution-proof functions.

Description

Antibacterial liquid, preparation method of antibacterial substrate and antibacterial substrate

The invention relates to an antibacterial product, in particular to an antibacterial liquid, an antibacterial substrate preparation method and an antibacterial substrate.

With the advancement of technology and the development of the Internet, smartphones and tablets have become indispensable portable electronic products in daily life. Users can operate them by touching the glass panel with their fingers. Among them, the user touches the glass panel. When cleaning the glass panel, oil stains or dust on your fingers can easily adhere to the glass panel, leaving fingerprints and marks that may affect the surface appearance of the glass panel.

Moreover, users frequently touch the glass panel, causing bacteria, viruses and foreign pollutants on their fingers to adhere to the surface of the glass panel and cause contamination, making the human body susceptible to infection with germs on the glass panel, thus raising concerns about health and safety.

The main purpose of this case is to solve the problem that the glass panels of electronic devices do not have antibacterial functions and affect human health and safety.

In order to achieve the above object, the present invention provides an antibacterial liquid, which contains alcohol ether solvent, silicon Oxygen compound and an antibacterial material, the antibacterial material includes an organic antibacterial additive and an inorganic antibacterial additive.

Another embodiment of the present invention provides an antibacterial substrate, which is suitable for use on a glass carrier surface. The antibacterial substrate includes an antibacterial film and an anti-fingerprint layer. The anti-bacterial film is disposed on one side surface of the glass carrier. The anti-bacterial film contains a silicon oxide compound and an anti-bacterial material. The anti-bacterial material includes an organic anti-bacterial additive and an inorganic anti-bacterial additive. The anti-fingerprint layer is disposed on one side of the anti-bacterial film away from the glass carrier. On the surface, the anti-fingerprint layer contains a fluorosilicone compound that can combine with the silicone compound of the anti-bacterial film, and the anti-fingerprint layer is distributed with a plurality of pores connected to the anti-bacterial film.

Another embodiment of the present invention provides a method for preparing an antibacterial substrate, which is formed on the surface of a glass carrier using the aforementioned antibacterial liquid. The method for preparing the antibacterial substrate includes step a and step b. Step a: use antibacterial liquid to adhere to one side surface of the glass carrier; step b: bake the glass carrier to solidify the antibacterial liquid and form it on one side of the glass carrier to form an antibacterial film.

In this way, the antibacterial material includes a combination of organic antibacterial additives and inorganic antibacterial additives, which can effectively enhance the antibacterial ability of the antibacterial film, and the antibacterial film forms a covalent bond with the glass carrier, thereby increasing the bonding strength between the antibacterial film and the glass carrier. Achieve long-term maintenance of excellent antibacterial effects and provide healthy operating results.

Moreover, the anti-fingerprint layer has excellent water and oil repellency, anti-fouling properties, smoothness, chemical resistance and environmental resistance, and the anti-bacterial material of the anti-bacterial film can be released through the pores and can inhibit and destroy the surface of the anti-fingerprint layer. The combination of anti-bacterial film and anti-fingerprint layer has excellent anti-bacterial ability and anti-fingerprint effect, thus achieving the dual effects of anti-bacterial and anti-fouling at the same time.

100: Antibacterial substrate

200:Glass carrier

10: Antibacterial film

20: Anti-fingerprint layer

21:pore

a: step

b: step

c: step

d: step

Figure 1 is a step flow chart of an embodiment of the present invention.

Figure 2 is a schematic diagram of the manufacturing process of the antibacterial film according to the embodiment of the present invention.

FIG. 3 is a schematic diagram of the manufacturing process of the anti-fingerprint layer according to the embodiment of the present invention.

Figure 4 is a partial enlarged view of Figure 3.

Figure 5 is a schematic three-dimensional view of an embodiment of the present invention.

Referring to FIGS. 1 to 5 , the present invention provides an antibacterial liquid, a method for preparing an antibacterial substrate 100 and an antibacterial substrate 100 .

The antibacterial liquid in this embodiment includes an alcohol ether solvent, a silicon oxide compound, and an antibacterial material. The antibacterial material includes an organic antibacterial additive and an inorganic antibacterial additive. Further description, the alcohol ether solvent includes propylene glycol methyl ether and ethylene glycol. Alcohol methyl ether, and the boiling point of the alcohol ether solvent is at least higher than 90°C. In some embodiments, the alcohol ether solvent can further be added with a low-boiling point alcohol ether solvent with a boiling point ranging from 80°C to 120°C. In this embodiment Among them, the boiling point range of alcohol ether solvents is 140℃ to 150℃.

The organic antibacterial additive of the antibacterial material is vanillin, while the inorganic antibacterial additive is a metal ion with an antibacterial effective amount. In this embodiment, the metal ion can be a group consisting of silver ions, copper ions and zinc ions. Further It shows that the metal ions of the inorganic antibacterial additives fix silver ions, copper ions and zinc ions on the surface of porous materials such as fluorspar and silicone through physical adsorption, ion exchange and other methods, and then mix the porous materials with the organic antibacterial additives , that is, to obtain antibacterial materials with antibacterial ability. Among them, organic antibacterial additives have antibacterial properties, while inorganic antibacterial additives have positively charged nanoparticles that can attract the negative charges on the surface of bacterial cells and then penetrate through physical To destroy the cell membrane of bacteria to achieve the effect of eliminating bacteria and interfering with bacterial reproduction, organic antibacterial additives and inorganic antibacterial additives The combination of additives can effectively enhance the antibacterial ability of antibacterial materials.

In some embodiments, the organic antibacterial additives can be a group consisting of acylanilines, imidazoles, thiazoles, isothiazolone derivatives, quaternary ammonium salts, bisphosphonates and phenols, while the inorganic antibacterial additives The additive may be a group consisting of zinc oxide, copper oxide, ammonium dihydrogen phosphate and lithium carbonate.

In this embodiment, the content of alcohol ether solvents ranges from 90 to 120 parts by weight, the content of silicon oxide compounds ranges from 2 to 9 parts by weight, and the content of antibacterial materials ranges from 4 to 20 parts by weight, wherein organic antibacterial additives The content range of the substance is 1 to 7 parts by weight, the content range of the inorganic antibacterial additive is 3 to 13 parts by weight, and the aforementioned substances are fully stirred to form an antibacterial liquid, the specific gravity range of the antibacterial liquid is 0.8 to 0.95, and the pH value range is 2 to 4, the viscosity is about 1cp, so the antibacterial liquid has the viscosity to widely adhere to the surface of various substrates.

Referring to Figures 1 to 4, the preparation method of the antibacterial substrate 100 of the present invention is to use the aforementioned antibacterial liquid to form the surface of a glass carrier 200. In this embodiment, the glass carrier 200 is a screen protector. In some embodiments, , the glass carrier 200 can be a glass panel of an electronic device; the preparation method of the antibacterial substrate 100 includes step a and step b.

Step a: Use antibacterial liquid to adhere to one side surface of the glass carrier 200. The antibacterial liquid is attached to the surface of the glass carrier 200 by one of evaporation, sputtering, printing or spraying. In the preferred embodiment, the antibacterial liquid is sprayed to facilitate its attachment to the surface of the glass carrier 200 over a large area. It should be noted that the antibacterial liquid is not limited to machine spraying. In the absence of relevant machines, it can be sprayed manually. The method of painting is this.

Step b: The aforementioned glass carrier 200 is baked, and the solidified antibacterial liquid is formed on one side of the glass carrier 200 to form an antibacterial film 10. As shown in Figure 2, the thickness of the formed antibacterial film 10 ranges from 90 to 110 nanometers. , making the antibacterial film 10 colorless and transparent. It is worth mentioning that the antibacterial film 10 of this embodiment can increase the light transmittance of the glass carrier 200 by 0.5 to 1.5%, and the water droplet angle on the surface of the antibacterial film 10 is about 60 to 70 degrees, thereby enabling according to According to the increase in light transmittance, it is judged whether the antibacterial film 10 is attached to the glass carrier 200; furthermore, the glass carrier 200 is baked in an environment of at least 180°C for 60 minutes to remove the alcohol ether solvent of the antibacterial liquid and make the antibacterial solution The film 10 is non-toxic and biocompatible. This embodiment further complies with the Japanese JIS Z2801 antibacterial testing standard and obtains an antibacterial value (R) of the antibacterial film 10 greater than 2.0, indicating that it has antibacterial properties. Furthermore, the silicone compound of the antibacterial film 10 It can form a covalent bond with the surface of the glass carrier 200, thereby improving the bonding strength between the antibacterial film 10 and the glass carrier 200, providing superior abrasion durability, thereby achieving long-term maintenance of excellent antibacterial effects. In this article, the term "antibacterial" preferably means having the effects of sterilization, sterilization, disinfection, bacteriostatic, mildewproofing and antisepsis.

In a preferred embodiment, as shown in Figures 1, 3 to 5, a step c and a step d are further included after step b.

Step c: Form an anti-fingerprint layer 20 containing a fluorosilicon compound on the side surface of the anti-bacterial film 10 away from the glass carrier 200. In this embodiment, the anti-fingerprint layer 20 is attached to the surface of the anti-bacterial film 10 by spraying.

Step d: The aforementioned glass carrier 200 is baked twice so that the fluorosilicone compound of the anti-fingerprint layer 20 can be dehydrated and combined with the silicon oxide compound of the antibacterial film 10. It is worth mentioning that the anti-fingerprint layer 20 of this embodiment can improve the quality of the glass carrier. 200 has a light transmittance of 0.5 to 1.5%, and the water droplet angle on the surface of the anti-fingerprint layer 20 is approximately 105 to 114 degrees; further stated, the glass carrier 200 is baked in an environment of at least 150°C for 60 minutes, and the anti-fingerprint layer 20 is formed The thickness range is below 20 nanometers. During the baking process of the glass carrier 200, dehydration condensation occurs between the molecules of the anti-fingerprint layer 20 and the antibacterial film 10 to generate siloxane bonds (-Si-O-Si-), which are then solidified. The anti-fingerprint layer 20 improves abrasion durability and achieves the effect of preventing fingerprint adhesion and easy wiping of oil stains for a long time.

Moreover, the anti-fingerprint layer 20 is distributed with a plurality of pores 21 connected to the anti-bacterial film 10. The anti-bacterial material of the anti-bacterial film 10 can be released through the pores 21, and can inhibit and eliminate bacteria on the surface of the anti-fingerprint layer 20. In this embodiment Furthermore, according to the Japanese JIS Z2801 antibacterial testing standard, the antibacterial value (R) of the antifingerprint layer 20 is greater than 2.0. Therefore, the antibacterial substrate 100 includes a combination of the antibacterial film 10 and the antifingerprint layer 20, which has excellent antibacterial ability and antifingerprint effect, thereby achieving It has the dual functions of antibacterial and antifouling at the same time.

It is particularly noted that the above-mentioned Table 1 is the antibacterial result of further testing the antibacterial substrate 100 in this embodiment. Among them, the present invention uses the antibacterial substrate 100 as a processed sample, and uses a non-antibacterial plastic film as an unprocessed sample, and for processing The sample and unprocessed sample were respectively inoculated with Escherichia coli ATCC8739, Staphylococcus aureus ATCC6538P and Klebsiella pneumoniae ATCC4352 for group testing to detect the growth status of the strains.

The antibacterial test results showed that the processed samples showed sterile growth compared with the unprocessed samples, and the processed samples corresponded to Escherichia coli ATCC8739, Staphylococcus aureus ATCC6538P and Klebsiella pneumoniae. The antibacterial value (R) of inflammatory bacteria ATCC4352 is >4. It is obvious that the antibacterial effect of the antibacterial film 10 of the antibacterial substrate 100 of the present invention is not affected by the anti-fingerprint layer 20, and can effectively inhibit the reproduction of various bacterial strains and has excellent antibacterial ability, making the antibacterial substrate 100 can continuously maintain antibacterial properties to achieve effective antibacterial effects.

Table 2 above shows the evaluation results of the surface properties of the antibacterial substrate 100 of this embodiment. The evaluation results show that the anti-fingerprint layer 20 does have excellent water and oil repellency, anti-fouling properties, smoothness and environmental resistance, and the anti-fingerprint layer 20 The water-repellent and oil-repellent property will not be affected by abrasion. The anti-fingerprint layer 20 formed on the surface of the anti-bacterial film 10 can protect the anti-bacterial film 10 from being affected by water or fingerprints, so that the combination of the anti-bacterial film 10 and the anti-fingerprint layer 20 has excellent anti-bacterial ability. And anti-fingerprint effect, thus achieving the dual effects of antibacterial and antifouling at the same time, and can be applied to various touch electronic devices to provide healthy operation effects.

Thus, the present invention has the following effects:

1. The antibacterial material includes a combination of organic antibacterial additives and inorganic antibacterial additives, which can effectively improve the antibacterial ability of the antibacterial film 10, and the antibacterial film 10 and the glass carrier 200 form a covalent bond, thereby improving the antibacterial ability of the antibacterial film 10 and the glass carrier 200. Combined with strength, it provides superior wear durability, thereby achieving long-term maintenance of excellent antibacterial effects.

2. The anti-fingerprint layer 20 of the anti-bacterial substrate 100 is formed on the surface of the anti-bacterial film 10, which can protect the anti-bacterial film 10 from being affected by water or fingerprints, and the anti-bacterial effect of the anti-bacterial film 10 will not be affected by the anti-fingerprint layer 20, making the anti-bacterial film 10 And the combination of the anti-fingerprint layer 20 has excellent antibacterial ability and anti-fingerprint effect, thereby achieving the dual effects of antibacterial and antifouling at the same time.

The above embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. All modifications or changes that do not violate the spirit of the present invention fall within the scope of the invention.

a: step

b: step

c: step

d: step

Claims (12)

An antibacterial liquid, which contains alcohol ether solvents, silicon oxide compounds and an antibacterial material. The antibacterial material includes an organic antibacterial additive and an inorganic antibacterial additive. The inorganic antibacterial additive is nanoparticles, wherein alcohol ethers are The content of the solvent ranges from 90 to 120 parts by weight, the content of the silicon oxide compound ranges from 2 to 9 parts by weight, the content of the antibacterial material ranges from 4 to 20 parts by weight, and the content of the organic antibacterial additive ranges from 1 to 9 parts by weight. 7 parts by weight, and the content of the inorganic antibacterial additive ranges from 3 to 13 parts by weight. The antibacterial liquid according to claim 1, wherein the organic antibacterial additive is vanillin, and the inorganic antibacterial additive is a metal ion with an antibacterial effective amount, and the metal ion is selected from the group consisting of silver ions, copper ions and zinc. A group of ions. The antibacterial liquid of claim 1, wherein the alcohol ether solvent includes propylene glycol methyl ether and ethylene glycol methyl ether, and the boiling point of the alcohol ether solvent is at least higher than 90°C. An antibacterial substrate, which is suitable for the surface of a glass carrier. The antibacterial substrate includes: an antibacterial film, which is disposed on one side surface of the glass carrier. The antibacterial film includes a silicon oxide compound and an antibacterial material. The antibacterial material includes an organic Antibacterial additive and an inorganic antibacterial additive, the inorganic antibacterial additive is nanoparticles, wherein the content of the silicon oxide compound ranges from 2 to 9 parts by weight, and the content of the antibacterial material ranges from 4 to 20 parts by weight, wherein, The content of the organic antibacterial additive ranges from 1 to 7 parts by weight, and the content of the inorganic antibacterial additive ranges from 3 to 13 parts by weight; and an anti-fingerprint layer is disposed on one side surface of the antibacterial film away from the glass carrier. , the anti-fingerprint layer contains a fluorosilicone compound that can combine with the silicon oxide compound of the anti-bacterial film, and the anti-fingerprint layer is distributed with a plurality of pores connected to the anti-bacterial film. The antibacterial substrate as claimed in claim 4, wherein the antibacterial film is produced by evaporation, sputtering, It is attached to the surface of the glass carrier by printing or spraying, and the thickness of the antibacterial film ranges from 90 to 110 nanometers, and the thickness of the anti-fingerprint layer ranges from 20 nanometers to less. The antibacterial substrate according to claim 4, wherein the organic antibacterial additive is vanillin, and the inorganic antibacterial additive is a metal ion with an antibacterial effective amount, and the metal ion is selected from the group consisting of silver ions, copper ions and zinc. A group of ions. A method for preparing an antibacterial substrate, which is formed on the surface of a glass carrier using the antibacterial liquid described in claim 1. The method for preparing the antibacterial substrate includes the following steps: Step a: Use the antibacterial liquid to adhere to one of the glass carriers Side surface; and step b: bake the glass carrier to solidify the antibacterial liquid and form it on one side of the glass carrier to form an antibacterial film. The method for preparing an antibacterial substrate as claimed in claim 7, wherein in step a, the antibacterial liquid is adhered to the surface of the glass carrier by one of evaporation, sputtering, printing or spraying. The method for preparing an antibacterial substrate as claimed in claim 7, wherein in step b, the glass carrier is baked in an environment of at least 180°C to remove the alcohol ether solvent of the antibacterial liquid, and the antibacterial film is formed The thickness range is 90 to 110 nm. The method for preparing an antibacterial substrate as claimed in claim 9, further comprising a step c after step b: step c: forming an anti-fingerprint containing fluorosilicone compound on the side surface of the antibacterial film away from the glass carrier layer. The method for preparing an antibacterial substrate as claimed in claim 10, further comprising a step d after step c: Step d: The glass carrier is baked twice so that the fluorosilicone compound of the anti-fingerprint layer can be dehydrated and combined with the silicon oxide compound of the anti-bacterial film to solidify the anti-fingerprint layer, and the anti-fingerprint layer is distributed with multiple connections. The pores of the antibacterial film. The method for preparing an antibacterial substrate as claimed in claim 11, wherein in step d, the glass carrier is baked in an environment of at least 150°C, and the thickness range of the anti-fingerprint layer is 20 nanometers or less.

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