Nantong Size Plastic Co.,Ltd.
Glass Jars

Glass Jars

Glass jars are packaging containers for food, beverage and many products. They are widely used. Glass is also a very historical packaging material. In the case of many packaging materials flooding into the market, glass containers still occupy an important position in beverage packaging, which is inseparable from the packaging characteristics that other packaging materials can not replace.


Glass jars have a series of advantages, such as cleanliness, beauty, transparency, high chemical stability, air-tight, easy to seal, keeping the properties of filling items unchanged, being able to be used many times, rich in raw materials, low prices, and so on. They have become widely used packaging materials in food, medicine, chemistry and other industries. Glass jars have been under intense competition from white iron, plastic bottles and so on, which forces them to constantly improve their production process in order to obtain a large number of low-cost and high-quality products. At present, glass jars have reached the level of complete automation in various production processes, such as raw material ingredient, melting, forming, annealing, product inspection and packaging.


INTRODUCTION OF GLASS JARS


FEATURES AND ADVANTAGE OF GLASS JARS

Glass jars have a series of advantages, such as clean and sanitary, beautiful, transparent, high chemical stability, airtight, easy to seal, keeping the nature of the contents unchanged, multiple turnovers, rich raw materials, low price and so on. Glass jar has become a widely used packaging material in food, medicine, chemistry, and other glass jars wholesales.


Glass jars have been subject to intense competition from tin, plastic bottles and so on, which forces it to continuously improve its production process in order to obtain a large number of cheap and high-quality products. Now the glass jars have reached the level of complete automation in raw material batching, melting, forming, annealing, product inspection, packaging and other production processes.


PRODUCTION PROCESS OF GLASS JARS

The production process of the glass jars mainly includes raw material pre-processing. The massive raw materials (quartz sand, soda ash, limestone, feldspar, etc.) are crushed to dry the wet raw materials. The iron-containing raw materials are doing the iron-removing to ensure the quality of glass. It is prepared by melting. The glass mixture is heated at 1550 ~ 1600 ℃ in the tank furnace or tank furnace to form a uniform and bubble-free liquid glass which meets the forming requirements. Put the liquid glass into the mold to make the required shape of glass products, such as heat treatment of the flat plate, various utensils and so on. Through annealing, quenching and other processes, it can eliminate or produce the internal stress, phase separation or crystallization of the glass, and change the structural state of the glass.


Glass jar is often used in food packaging, gift packaging, pharmaceutical packaging, chemical utensils.