Wide mouth container vacuum control
Vacuum panels or ribs are generally not used on wide mouth containers. Even though increased wall thickness can prevent vacuum deformation, the increased container weight means increased material costs.
Aoki's Direct Heatcon technology enables localization of thicker walls at the center of the container body, which prevents this deformation. This means weight savings.
Molding technology FAQ
In what kind of container applications is vacuum control used?
It is used for containers that are subject to deformation caused by reduced pressure as a result of temperature change in contents or storage environment. Reduced pressure deformation caused by temperature change also includes containers subject to high temperature filling.
How does vacuum control in wide mouth containers affect design?
A popular design is reinforcement with horizontal ribs to suppress deformation. Aoki's Direct Heatcon technology enables reinforcing through thickening the walls only in required sections. Another method is to equip the container with vacuum absorption panels that do not affect quality of appearance.
What are the main factors causing vacuum deformation?
Temperature change in contents or storage environment, and differences in altitude can cause reduced pressure deformation. Reduced pressure deformation caused by temperature change also includes containers subject to high temperature filling.