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Production process of double neck bottle

Mar. 31, 2021

With the development of science and technology, plastic bottles with different shapes and functions have been widely used in various industries. Two-neck bottles are a new type of packaging, mainly used in animal nutrition solutions, disinfectants, herbicides, and pesticides. And other veterinary packaging.


Production process of double mouth bottle

twin neck bottle


As the name suggests, the double-mouth bottle is composed of two bottle mouths, corresponding to two different spaces of the volume cavity and the quantitative cavity respectively. The structure of the bottle is so special, what kind of processing technology is used to produce it? Common plastic bottle production processes include injection molding, extrusion blowing, injection stretch blowing, etc. Among them, the extrusion blowing process is suitable for the production of various special-shaped bottles, and the two-neck bottle is processed by this process.


Production process of double neck bottle

1000ml dispensing bottle


Extrusion blowing is the extrusion blow molding process. Firstly, the tubular parison is extruded by the extruder. After the material is melted and plasticized by the extruder, the material is extruded from the die; then, the parison is clamped and closed when the parison arrives. Cut off a section of tube embryo while it is hot and place it in the blow mold, close the mold and clamp it at the same time; after that, inflate the parison, and blow compressed air into the parison through the blow nozzle to inflate the parison The precise shape of the molding cavity; finally, the mold is opened to take out the product.

Extrusion blow molding is an earlier type of blow molding method. It is suitable for blow molding of PE, PP, PVC, PETG, thermoplastic engineering plastics, thermoplastic elastomers and other polymers and various blends. It is mainly used to produce packaging. Containers, storage tanks and other industrial parts.

The above is an introduction to the production process of two-neck bottles. There are many types of plastic bottles, and the corresponding production process can be selected for different uses and materials to meet the needs of product storage.


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