Glass is an older material, and glass wine bottles are made of ordinary silicate materials and various auxiliary raw materials through high temperature melting. The glass bottle became the packaging container for liquid food from the birth of the milk bottle in 1884.
Why glass bottles have always been favored by people, it has its advantages, today we will discuss the advantages of glass bottles together?
How glass bottles are made
1. Raw material preprocessing
The bulk raw materials (quartz sand, soda ash, limestone, feldspar, etc.) are crushed, the wet raw materials are dried, and the iron-containing raw materials are subjected to iron removal treatment to ensure the quality of the glass.
2. Preparation of batching materials
3. Melting
The glass batch is heated at a high temperature (1550~1600 degrees) in a pool kiln or pool furnace to form a uniform, bubble-free liquid glass that meets the molding requirements.
4. Forming
Put the liquid glass into the mold to make glass products of the required shape, such as flat plates, various utensils, etc.
5. Heat treatment
Through annealing, quenching and other processes, the stress, phase separation or crystallization inside the glass is cleaned or generated, and the structural state of the glass is changed.
Main features of glass bottles
Glass bottles are highly transparent and corrosion-resistant, and will not change material properties in contact with most chemicals. Its manufacturing process is simple, free and changeable in shape, high in hardness, heat-resistant, clean, easy to clean, and can be used repeatedly.
Advantages of glass bottles
1. Good transparency
Although glass wine bottles have various shades such as brown and dark green, except for beer bottles, most glass wine bottles are colorless and transparent, and the internal filling amount, wine clarity, and Whether there is precipitation, etc. It is convenient for consumers to choose and drink with confidence.
2. Good chemical stability
The quality of container materials is directly related to the safety of food, so many countries pay more attention to it. When a glass wine bottle is used as a packaging container for alcoholic beverages, there is no eluate from the container material due to its chemical stability. Compared with other containers, the safety of food is greatly guaranteed, which is very important for glass bottles to be superior to other containers.
3. Good sealing
Whether it's beer, liquor or wine, glass wine bottles are guaranteed to be completely sealed. Unlike most plastic and paper containers, glass containers are not breathable, which not only prevents the volatilization of the wine in the bottle, but also prevents the influence of the outside air on the wine.
4. Strong pressure resistance
Although the glass wine bottle is fragile when it is bumped, it is not enough to break the deformation of the wine bottle. However, it should be noted that if the glass surface is scratched or bruised, its compressive strength will be greatly reduced.
5. Diversified shapes
The glass wine bottle is formed after the raw material is melted, so it can be designed into various shapes according to customer requirements, and its capacity and sealing form can be freely selected.