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Basic vacuum forming packaging.

12 June 2024 | Plastics By Design

Basic vacuum forming packaging.

Vacuum formed packaging, also known as thermoformed packaging, is a manufacturing process used to create a variety of plastic products, including packaging materials.

Here's an overview of the process and its benefits:

Process
  1. Heating: A plastic sheet is heated until it becomes pliable.
  2. Forming: The heated plastic sheet is placed over a tool. A vacuum is then applied, pulling the plastic tightly against the tool, creating the desired shape.
  3. Cooling: The formed plastic is cooled to retain the shape.
  4. Trimming: The excess plastic is trimmed off, leaving the final product.

Materials Used
Common materials used in vacuum forming include:

• Polyethylene (PE)
• Polypropylene (PP)
• Polystyrene (PS)
• Polyvinyl Chloride (PVC)
• Polyethylene Terephthalate (PET)

Applications
Vacuum formed packaging is used across various industries due to its versatility and cost-effectiveness. Some common applications include:
  • Blister packs: Often used for pharmaceuticals, electronics, and small consumer goods.
  • Clamshell packaging: Used for food products, electronics, and other retail items.
  • Trays: Used in food services, medical equipment, and industrial components transit trays.
  • Custom packaging solutions: Tailored to specific products for protection and display purposes.
Benefits
  • Cost-Effective: The process is generally less expensive than other moulding methods, especially for small to medium production runs.
  • Quick Turnaround: The moulds for vacuum forming can be produced relatively quickly, enabling faster production times.
  • Design Flexibility: Allows for a wide range of shapes and sizes, making it suitable for custom packaging solutions.
  • Durability and Protection: Provides excellent protection for products during shipping and handling.
  • Visibility: Transparent materials can be used, which is beneficial for retail displays where product visibility is important.

Environmental Considerations
  • Recyclability: Many of the materials used in vacuum forming are recyclable.
  • Sustainability: Efforts are being made to use more eco-friendly materials and processes to reduce the environmental impact.
Overall, vacuum formed packaging is a versatile and efficient solution for many packaging needs, offering both functional and aesthetic benefits.