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Bottle preforms, as a key intermediate in the production process of packaging containers such as plastic bottles, motor oil barrels, cosmetic boxes, and plastic shampoo bottles, have a crucial impact on the quality and performance of the final product. Foshan Heyan Mold Co., Ltd., as a leader in the field of preform molds, relies on its deep experience in preform mold design, manufacturing and PET bottle preform production to provide you with a detailed analysis of the preform production process.
1. Definition and use
Bottle preform is a semi-finished product formed by filling raw materials into the gun mold of the mold under specific temperature and pressure through injection molding processing technology. After subsequent blow molding processing, these preforms can be turned into various plastic packaging containers common in our daily lives. As an intermediate product, the production of bottle preforms not only simplifies the forming process of the final product, but also significantly reduces the chance of waste products. At the same time, the preforms take up relatively little space, effectively saving transportation costs.
2. Production process
Raw material preparation: Foshan Heyan Mold selects high-quality PET resin particles as the main raw material, and adds appropriate amounts of additives (such as tougheners, stabilizers, etc.) according to customer needs to ensure the strength and toughness of the preform.
Melt mixing: Send the mixed PET resin particles into the melting machine, heat and stir them to melt them and mix them evenly with the additives. Temperature and time control in this step are crucial. Foshan Heyan Mold adopts advanced temperature control technology to ensure stable quality of the melt.
Extrusion molding: The molten material is pushed through the extruder into the PET bottle preform mold independently developed by Heyan Technology to form a blank. The shape and size of the mold determine the final shape and size of the blank, so Heyan Mold Factory invests a lot of effort in mold design and manufacturing to ensure the accuracy and durability of the mold.
Pickling and drying: The formed blank needs to be pickled to remove surface impurities and oil stains. Then, the moisture is removed through drying equipment to ensure that the surface of the blank is dry and clean.
Cutting and quality inspection: Cut the blank into different lengths as needed, and conduct strict inspections on appearance, size, weight and other indicators. Foshan Heyan Mold has a professional quality inspection team and advanced testing equipment to ensure that each batch of preforms meets national standards and customer requirements.
3. Materials and characteristics
In addition to PET, the materials of preforms also include PVC, PS and PP. Bottle preforms made of different materials have different properties and uses:
PET: hard, tough, high strength, bright surface, environmentally friendly and non-toxic, often used to make food packaging boxes and plastic bottles.
PVC: soft, strong toughness, good plasticity, transparent PVC is commonly used to package electronics, cosmetics, toys, gifts and other products.
PS: Low density, environmentally friendly and non-toxic, good plasticity but poor toughness, often used as bottom support blister.
PP: The material is particularly soft, has good toughness, is environmentally friendly, non-toxic, and resistant to high temperatures. It is often used as packaging for dining utensils or other high-temperature-resistant products.
4. Summary and suggestions
In general, the preform is an important link in the production process of plastic bottles and other packaging containers. Foshan Heyan Mold Co., Ltd. relies on its professional strength in preform mold design, manufacturing and PET bottle preform production to provide customers with high-quality preform products and services. When purchasing bottle preforms, it is recommended to choose reliable and formal manufacturers to cooperate with to ensure the stability and reliability of product quality and performance. At the same time, selecting appropriate materials and specifications of preforms according to actual needs is also the key to ensuring the quality and performance of the final product.
Foshan Heyan Precision Mould Technology Co., Ltd.'s main business is preform moulds, bottle blowing moulds, bottle cap moulds and other products. It has a strong engineering, R&D, technology and sales team, advanced processing equipment and rich project experience. If you want to know more or have special needs, please call 13318345050, or add our WhatsApp.
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