New and practical antibacterial glass containers have appeared abroad in the early 1990s. Currently in the United States, Japan and other places have been industrialized. In China, new types of antibacterial glass containers are also the development direction of the glass container industry in the 21st century.
1. Overview of Antimicrobial Glass Containers The improvement of people's material living standards places higher demands on glass containers used in food packaging. Although the glass container has the advantages of transparency, cleanliness, good stability, and no contamination of the contents, the microorganisms, viruses, and other microorganisms are generated on the surfaces of the glass containers after use for a long time, which is harmful to people's health. According to the traditional method, cleaning, high-temperature cooking or sterilization is generally used. These sterilizing methods have a long period, are expensive, and can only play a bactericidal effect in a short period of time.
The new antibacterial glass container is a kind of glass container with its own antibacterial effect. It not only maintains the advantages of glassware, is clean and hygienic, but also has stable and lasting antibacterial and antibacterial effects. It is a product of upgrading.
Second, the trend of research on antibacterial devices at home and abroad At present, foreign research on antibacterial materials is in the ascendant, especially in the United States, Japan, Britain and other developed countries, the requirements of antibacterial devices are urgent, such as antibacterial clothing (underwear, insoles, etc.), sterilization equipment (Drinking water processor, etc.), anti-corrosion food additives, etc. have come into being, and the effect is good. However, these antibacterial devices are mostly made of organic antibacterial agents, and they are still not satisfactory in terms of human safety and durability. In recent years, foreign countries have reported that some developed countries have applied inorganic antibacterial agents. For example, in the United States and Japan, antibacterial ceramics (sanitary ware) have achieved industrial production, and their products have been welcomed in homes, hospitals, and hotels. Although the domestic research and application of antibacterial devices is later than abroad, it is also very active. It has recently been reported that a film consisting of photocatalyst antibacterial metal elements, far-infrared elements and their oxides has been successfully developed. The film is plated on ceramics and glass products to provide multi-functional features such as health care, antibacterial, and deodorant. A study of antibacterial ceramic materials using CaHPO4 as a carrier has also been reported. It shows that in the development of antibacterial devices, China has started to develop. Antibacterial devices with good antibacterial effect, strong stability, safe use, and wide application have a large scale. prospect.
III. Antibacterial Mechanism of Antibacterial Glass Containers The key to the research of new antibacterial glass containers lies in the research of antibacterial mechanisms. The antibacterial mechanisms of different antibacterial agents are different and the method of use is different. Therefore, the research of antibacterial mechanisms should be based on the selection of antibacterial agents. Start.
1. Selection of Antibacterial Agents Although there are many kinds of antibacterial agents and varieties of antibacterial agents, they can be divided into two major categories, organic antibacterial agents and inorganic antibacterial agents. Organic antibacterial agents are mainly organic acids, esters, alcohols, phenols and other substances. These antibacterial agents have been widely used and have good results, but they have more or less side effects, and there are also problems such as high temperature resistance and easy failure. When agents act on ceramics and other antibacterial devices, there are deficiencies such as safety and durability. Organic antibacterial agents are usually added to foods, detergents and cosmetics, and exert their antibacterial effects directly. In the use of such antibacterial agents, the effect of small concentration is not obvious, and if the concentration is large, it will cause toxic side effects to the human body. According to the manufacturing characteristics of glass containers, this antibacterial agent cannot be used.
The other type is an inorganic antibacterial agent. Inorganic antibacterial agents are mainly metal and ionic compounds and some porous high ion exchange materials such as metallic silver, phosphate and the like. There are two kinds of antibacterial mechanisms of commonly used inorganic antibacterial agents. The first is the use of photochemical reactions in the atomic state of the oxygen sterilization, the atomic state of the reaction generated atomic oxygenation activity is high, can quickly react with the organic substances in bacteria, kill bacteria in a short time.
The antibacterial mechanism of another kind of inorganic antibacterial agent is to use the metal ions generated after ionization or hydrolysis of the antibacterial agent to hinder the bacterial metabolic process, so that the bacterial cells can not be divided and die, while the metal ions (usually positive ions) attract the negative ions in the cells and make the cell membrane Destroy and die. Compared with organic antibacterial agents, inorganic antibacterial agents have the characteristics of high temperature resistance, stability, broad spectrum, and safety, and are suitable for the production process of antibacterial glass containers.
Fourth, the research of the antibacterial mechanism of the subject The inorganic antibacterial agent studied in this project is selected as a kind of glass with low melting point, certain chemical stability and antibacterial effect. This kind of special antibacterial glass containing different additives, under the combined action of water, acid, salt, light, etc., releases appropriate amounts of atoms and ions with antibacterial effects to achieve the effect of killing bacteria. Then, the glass is used as a carrier of the antibacterial agent so that it is uniformly adhered to the inner surfaces of various glass containers that are molded. In use, the carrier releases a certain amount of antibacterial metal ions in an appropriate amount and utilizes it. Oxidation impedes bacterial metabolism and attracts negative ions in bacterial cells for sterilizing and preservation.
5. Trial Production of Antimicrobial Glass Containers After the process of designing, formulating, melting, crushing, grinding, spraying, and heat-treating glass components, we tried to make new anti-bacterial glass containers and conducted a comparative test of antibacterial properties. The antibacterial properties have laid a solid foundation for further in-depth research.
1. Overview of Antimicrobial Glass Containers The improvement of people's material living standards places higher demands on glass containers used in food packaging. Although the glass container has the advantages of transparency, cleanliness, good stability, and no contamination of the contents, the microorganisms, viruses, and other microorganisms are generated on the surfaces of the glass containers after use for a long time, which is harmful to people's health. According to the traditional method, cleaning, high-temperature cooking or sterilization is generally used. These sterilizing methods have a long period, are expensive, and can only play a bactericidal effect in a short period of time.
The new antibacterial glass container is a kind of glass container with its own antibacterial effect. It not only maintains the advantages of glassware, is clean and hygienic, but also has stable and lasting antibacterial and antibacterial effects. It is a product of upgrading.
Second, the trend of research on antibacterial devices at home and abroad At present, foreign research on antibacterial materials is in the ascendant, especially in the United States, Japan, Britain and other developed countries, the requirements of antibacterial devices are urgent, such as antibacterial clothing (underwear, insoles, etc.), sterilization equipment (Drinking water processor, etc.), anti-corrosion food additives, etc. have come into being, and the effect is good. However, these antibacterial devices are mostly made of organic antibacterial agents, and they are still not satisfactory in terms of human safety and durability. In recent years, foreign countries have reported that some developed countries have applied inorganic antibacterial agents. For example, in the United States and Japan, antibacterial ceramics (sanitary ware) have achieved industrial production, and their products have been welcomed in homes, hospitals, and hotels. Although the domestic research and application of antibacterial devices is later than abroad, it is also very active. It has recently been reported that a film consisting of photocatalyst antibacterial metal elements, far-infrared elements and their oxides has been successfully developed. The film is plated on ceramics and glass products to provide multi-functional features such as health care, antibacterial, and deodorant. A study of antibacterial ceramic materials using CaHPO4 as a carrier has also been reported. It shows that in the development of antibacterial devices, China has started to develop. Antibacterial devices with good antibacterial effect, strong stability, safe use, and wide application have a large scale. prospect.
III. Antibacterial Mechanism of Antibacterial Glass Containers The key to the research of new antibacterial glass containers lies in the research of antibacterial mechanisms. The antibacterial mechanisms of different antibacterial agents are different and the method of use is different. Therefore, the research of antibacterial mechanisms should be based on the selection of antibacterial agents. Start.
1. Selection of Antibacterial Agents Although there are many kinds of antibacterial agents and varieties of antibacterial agents, they can be divided into two major categories, organic antibacterial agents and inorganic antibacterial agents. Organic antibacterial agents are mainly organic acids, esters, alcohols, phenols and other substances. These antibacterial agents have been widely used and have good results, but they have more or less side effects, and there are also problems such as high temperature resistance and easy failure. When agents act on ceramics and other antibacterial devices, there are deficiencies such as safety and durability. Organic antibacterial agents are usually added to foods, detergents and cosmetics, and exert their antibacterial effects directly. In the use of such antibacterial agents, the effect of small concentration is not obvious, and if the concentration is large, it will cause toxic side effects to the human body. According to the manufacturing characteristics of glass containers, this antibacterial agent cannot be used.
The other type is an inorganic antibacterial agent. Inorganic antibacterial agents are mainly metal and ionic compounds and some porous high ion exchange materials such as metallic silver, phosphate and the like. There are two kinds of antibacterial mechanisms of commonly used inorganic antibacterial agents. The first is the use of photochemical reactions in the atomic state of the oxygen sterilization, the atomic state of the reaction generated atomic oxygenation activity is high, can quickly react with the organic substances in bacteria, kill bacteria in a short time.
The antibacterial mechanism of another kind of inorganic antibacterial agent is to use the metal ions generated after ionization or hydrolysis of the antibacterial agent to hinder the bacterial metabolic process, so that the bacterial cells can not be divided and die, while the metal ions (usually positive ions) attract the negative ions in the cells and make the cell membrane Destroy and die. Compared with organic antibacterial agents, inorganic antibacterial agents have the characteristics of high temperature resistance, stability, broad spectrum, and safety, and are suitable for the production process of antibacterial glass containers.
Fourth, the research of the antibacterial mechanism of the subject The inorganic antibacterial agent studied in this project is selected as a kind of glass with low melting point, certain chemical stability and antibacterial effect. This kind of special antibacterial glass containing different additives, under the combined action of water, acid, salt, light, etc., releases appropriate amounts of atoms and ions with antibacterial effects to achieve the effect of killing bacteria. Then, the glass is used as a carrier of the antibacterial agent so that it is uniformly adhered to the inner surfaces of various glass containers that are molded. In use, the carrier releases a certain amount of antibacterial metal ions in an appropriate amount and utilizes it. Oxidation impedes bacterial metabolism and attracts negative ions in bacterial cells for sterilizing and preservation.
5. Trial Production of Antimicrobial Glass Containers After the process of designing, formulating, melting, crushing, grinding, spraying, and heat-treating glass components, we tried to make new anti-bacterial glass containers and conducted a comparative test of antibacterial properties. The antibacterial properties have laid a solid foundation for further in-depth research.
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