Moulded Fiber Packaging Moisture Equalization by Permeability Control
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Solution Overview
Problem
Conventional manufacturing processes of moulded fiber packaging units result in inhomogeneous moisture content distribution, leading to variations in product quality and increased manufacturing costs due to the need for time-consuming storage under controlled conditions.
Innovation Solution
A method involving the introduction of a moisturized flow, such as an over-saturated air flow, into the packaging units to regulate and homogenize moisture content, controlled by the permeability of the packaging units, using a controller to adjust pressure and flow rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional manufacturing processes are used to form moulded fiber packaging units, then the production speed and manufacturing cost are acceptable, but the moisture content distribution within and between packaging units becomes inhomogeneous and unregulated
Solution Approach 1:
The patent applies preliminary action by introducing a moisturized flow through the fiber material immediately after molding while the packaging unit is still in the mold. This early moisture regulation prevents the inhomogeneous moisture distribution that would otherwise develop during storage, eliminating the need for subsequent buffering storage and enabling continuous production without compromising moisture uniformity.
2Manufacturing precision
If storage under controlled conditions is implemented to homogenize moisture content, then the moisture distribution within packaging units improves, but the manufacturing time increases and buffering capacity is required
Solution Approach 1:
The patent implements continuity of useful action by integrating the moisture regulation step directly into the molding process. The moisturized flow is continuously supplied through the fiber material during and immediately after molding, ensuring uninterrupted moisture homogenization without requiring separate storage phases. This continuous approach eliminates downtime and buffering requirements while maintaining precise moisture control.
3Reliability
If storage buffers are used to accommodate moisture variations, then product quality consistency is maintained, but manufacturing costs and system complexity increase
Solution Approach 1:
The patent applies self-service by enabling the packaging unit itself to regulate its moisture content through the fiber material structure. The moisturized flow passes directly through the porous fiber matrix, allowing each packaging unit to self-homogenize its moisture distribution during the molding process. This eliminates the need for external buffering systems or complex quality control infrastructure, reducing overall system complexity while maintaining product consistency.
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
Achieves consistent moisture distribution within and between packaging units, reducing product quality variations and eliminating the need for storage buffers, thereby enhancing production efficiency and quality.
Implementation Method 1
controlling the moisturized flow depending on the permeability of the primary packaging unit
Data Source
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Figure 3A~3B
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AI summary
The invention relates to a method and system for introducing moisture in a moulded fiber packaging unit in a manufacturing process. The method comprises the steps of: - preparing a mouldable fiber material; - forming the mouldable fiber material in a mould into a primary packaging unit with a compartment; - providing a moisturized flow to the primary packaging unit and forcing the flow through the fiber material of the primary packaging unit; and - controlling the moisturized flow depending on the permeability of the primary packaging unit.