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Process Flow Of Glass Bottle
Hangzhou Lecos Packaging Co.,Ltd | Updated: Jun 08, 2018

The production process of glass bottles mainly includes: 1. Raw materials pre processing. The bulk material (quartz sand, soda ash, limestone, feldspar, etc.) is crushed to dry wet raw materials and iron - containing raw materials are treated with iron removal to ensure the quality of glass. 2. Preparation of mixture. (3) melting. The glass batch is heated at a high temperature (1550~1600 degree) in a pool furnace or a pool furnace to form a uniform, non bubble and liquid glass that meets the molding requirements. (4) forming. The liquid glass is put into the mold to make the required shape of glass products, such as plates, containers, etc. Heat treatment. Through annealing, quenching and other processes, the stress, phase separation or crystallization inside the glass can be eliminated or changed, and the structural state of the glass will be changed. The advantages of glass packaging container in the field of beverage packaging

Glass packaging materials and containers have many advantages: 1, glass materials have good barrier properties, can be good to prevent the invasion of oxygen and other gases, and can prevent the volatile components of the contents of the atmosphere to volatilize in the atmosphere.

2, glass bottles can be used repeatedly and can reduce the packaging cost.

3, glass can easily change color and transparency.

4. Glass bottles are safe and hygienic, have good corrosion resistance and acid corrosion resistance, and are suitable for packaging acidic substances (such as vegetable drinks, etc.).

5, in addition, as glass bottles are suitable for the production of automatic filling production line, the development of automatic filling technology and equipment for glass bottles in China is more mature, and glass bottles and vegetable juices have some advantages in domestic production. First, it is necessary to design and manufacture the mold. The glass material is made of quartz sand as the main material, and the other auxiliary materials are dissolved into liquid at high temperature. Then the mold is injected into the mold. The glass bottles are formed by cooling, cutting and tempering. Glass bottles generally have rigid signs, and the logo is also made of mold shapes. The molding of glass bottles can be divided into three types: artificial blowing, mechanical blowing and extrusion molding. Glass bottles can be divided into the following ingredients according to their ingredients: sodium glass, two lead glass and three borosilicate glass.

The main raw materials of glass bottles are natural ores, quartzite, caustic soda, limestone and so on. Glass bottles are highly transparent and corrosion-resistant. Unlike most chemicals, they will not change in material properties. Its manufacturing process is simple, the shape is free and changeable, hardness is big, heat resistance, clean, easy to clean up, and has the characteristics of repeated use. As a packaging material, glass bottles are mainly used in food, oil, liquor, beverages, condiments, cosmetics and liquid chemical products. But glass bottles also have their disadvantages, such as heavy weight, high transport and storage costs, and no impact.

Characteristics and types of glass bottles: glass bottles are the main packaging containers for food, medicine and chemical industry. They have good chemical stability, easy to seal, good air tightness, transparent, can be observed from the outside, good storage performance, smooth surface, easy to sterilize, beautiful modelling, rich and colorful decoration, a certain mechanical strength, can withstand the pressure in the bottle and the external force in the transportation process; original The material has the advantages of wide distribution, low price and so on. The disadvantage is that the quality is large (mass and capacity ratio is large), brittleness is large and fragile. However, with the new technology of thin wall light and physicochemical steel, these shortcomings have been greatly improved, so the glass bottle can increase year by year with the fierce competition with plastic, iron listening and iron cans.

There are many varieties of glass bottles, from small bottles with capacity of 1ML to more than ten liters of large bottles, from round, square, to special-shaped and shank bottles, from colorless transparent amber, green, blue, black shading bottles and opaque turbid glass bottles. In terms of manufacturing technology, glass bottles are generally divided into two categories: moulded bottle (using model bottle) and control bottle (glass control bottle). Moulded bottles are divided into two types: large mouthpiece (bottle diameter is above 30MM) and small mouth bottle. The former is used for holding powder, bulk and paste articles, and the latter is used for holding liquids. According to the form of bottle mouth, it can be divided into cork bottle mouth, thread bottle mouth, cap cap mouth, roller bottle mouth and frosted bottle mouth. According to the usage, it can be divided into one time disposable bottles and multiple recycling bottles. According to the classification of clothing, it can be divided into wine bottles, beverage bottles, oil bottles, cans bottles, acid bottles, medicine bottles, reagent bottles, infusion bottles, cosmetic bottles and so on.


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