Hybrid Container Processing for Hot-Fill Vacuum Control
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Solution Overview
Problem
Existing hot-fill and aseptic beverage filling technologies face challenges with vacuum pressure buildup in containers and high operational costs, respectively, limiting their effectiveness and efficiency.
Innovation Solution
A hybrid filling line that integrates hot-fill and aseptic methodologies, utilizing an Aseptic Line Converter Chamber to neutralize vacuum pressure by introducing sanitized gas into the container headspace after cooling, allowing for ultra-lightweight containers with improved quality and reduced operational complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hot-fill process is used, then operational cost and ease of maintenance are improved, but container weight increases due to need for rigid structure to resist vacuum forces
Solution Approach 1:
The patent applies preliminary action by introducing gas into the container headspace before the cooling process completes, preemptively counteracting the vacuum pressure that would otherwise form. This prevents the need for heavy-walled containers while maintaining the economical hot-fill process advantages.
2Ease of operation
If hot-fill process is used, then operational simplicity is improved, but container design freedom is reduced due to requirements for vacuum resistance
Solution Approach 1:
By introducing gas into the headspace before cooling completes, the invention removes vacuum constraints that limit container design. This enables use of thin-walled, flexible, or creatively designed containers while maintaining operational simplicity of hot-fill processes.
3Reliability
If aseptic process is used, then product quality is improved, but operational cost and complexity increase
Solution Approach 1:
The patent merges the hot-fill process with a simplified gas introduction step, combining the operational simplicity of hot-fill with the quality benefits of aseptic processing. This hybrid approach achieves product quality comparable to full aseptic systems while avoiding their complexity and cost.
4Reliability
If aseptic process is used, then product quality is improved, but operational cost increases
Solution Approach 1:
The invention merges the economical hot-fill approach with a targeted gas introduction step, achieving aseptic-quality products without the high operational costs of complete aseptic systems. This provides cost-effective access to high-quality packaging.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The hybrid system effectively manages vacuum pressure in hot-filled containers, achieving aseptic quality at a lower cost and operational ease, enabling lightweight containers with enhanced product quality comparable to traditional aseptic systems.
Implementation Method 1
neutralize vacuum pressure by introducing sanitized gas into the container headspace
Implementation Method 2
the hot liquid to soak the upper end of the container and also the inside surface of the cap
Implementation Method 3
The product has been held in a batching process for a period of time prior to filling to ensure any microorganisms have been killed (referred to as pasteurization)
Implementation Method 4
conveyed towards a cooler. After approximately 2-3 minutes it can be safely assumed that the container and its contents have been safely sterilized, and the container may enter the cooler unit. A cooler is usually a simple cold water shower tunnel that cools the bottles more rapidly
Implementation Method 5
the container is heat-set to withstand the hot fill temperature for a set period of time. Once the liquid within the container cools, the volume of the contained liquid reduces, creating a vacuum within the container
Data Source
AI summary
One embodiment of the present invention provides an apparatus for processing sealed plastic containers having a first headspace pressure. The apparatus may include: an open entry port or tunnel for continuously receiving containers; a sanitizer configured to sanitize outside surfaces of the received containers; a perforator configured to perforate or open a cap or seal of the containers within the apparatus; a sealer configured to seal the perforation or opening formed in the cap or seal of the containers; an open exit port of tunnel for continuously exiting the processed containers; and a conveyor system configured to transporting or convey the containers from the open entry port or tunnel, through and within the apparatus, to the open exit port or tunnel and away from the sanitized environment of the apparatus. The apparatus may be further configured to maintain a sanitized environment within the apparatus, perforator, and/or sealer.