Thermoforming

A manufacturing process where a plastic sheet is heated to a pliable forming temperature, formed to a specific shape in a mold, and trimmed to create a usable product. The sheet, or "film" when referring to thinner gauges and certain material types, is heated in an oven to a high-enough temperature that it can be stretched into or onto a mold and called to a finished shape.

Prototyping

A sample tool to test the concept of the lid. Engineers use their experience to tailor the prototype according to the specific unknowns still present in the intended design. For example, some prototypes are used to confirm and verify consumer interest in a proposed design whereas other prototypes will attempt to verify the performance or suitability of a specific design approach.

Polyethylene Terephthalate (PET)

  • Wide Temperature Performance
  • Great Freezer, Cold Case and Room Temperature Performance
  • Max Hot Fill 140ºF Excellent for low temperature performance
  • High clarity material with strong impact resistance
  • Excellent performance with challenging ingredients
  • Great barrier characteristics for longer shelf life.

Polystyrene

  • Wide Temperature Performance
  • Great for Chilled Foods and Room Temperature Displays
  • Maximum Hot Fill 185ºF
  • High Clarity
  • No odor and taste transfer to or from food
  • Rigid material
       

Polypropylene

  • Wide Temperature Performance
  • Great for Hot Foods such as soups
  • High Clarity
  • Rigid material