With the continuous development of the packaging industry, PET bottle blowing technology has risen rapidly in recent years and has become the mainstream choice for liquid and solid packaging containers nationwide. It is particularly prominent in the field of pharmaceutical packaging. PET bottles have significant advantages over traditional glass bottles: under the same drug filling volume, the weight of PET bottles is only about one-tenth of that of glass bottles; and for packaging bottles of the same diameter, the capacity of PET bottles is 1.5 times that of glass bottles. In addition, PET materials can be made into transparent or opaque brown bottles with a variety of color options and beautiful appearance.
The advantages and disadvantages of PET bottle blowing technology and operating precautions are as follows:
Advantages:
Uniform wall thickness: no post-processing is required during the production process of the product, no seamless seams, and reduced waste edges and waste materials.
High production efficiency: The production process has a high degree of automation and is suitable for large-scale production.
Lightweight materials: Compared with traditional materials, PET bottles are lighter, reducing transportation costs and carbon footprint.
Good barrier properties: PET bottles have excellent gas barrier and water vapor barrier properties, meeting the special storage requirements of drugs.
Disadvantages:
High mold cost: Two molds are required to manufacture PET bottles, namely injection molds and blow molds. The mold positioning tolerance requirements are high and the cost is high.
Production shape and size restrictions: Certain shapes of containers, such as handle containers, are not suitable for PET blowing technology.
Operation precautions:
Temperature control key: The temperature of the tube and blow molding needs to be precisely controlled. Too high or too low will affect the quality and stability of the product. Select suitable molding resin: It needs to have good melt fluidity and impact toughness to ensure the strength and durability of the product.
Global polyester production shows a steady growth trend. PET plastic bottles have become one of the mainstream choices for pharmaceutical, health care and food packaging due to their stability and good transparency.
In short, PET blowing technology plays an increasingly important role in the modern packaging industry, which not only improves packaging quality and efficiency, but also contributes to environmental protection and resource conservation. With the advancement of technology and the expansion of application areas, PET blowing technology is expected to continue to play an important role in the future.
If you have more questions or cooperation needs about PET blowing technology, please feel free to contact us. We look forward to further communication and cooperation with you.
