Molded Fiber Packaging with Chemical Barriers for Moisture Resistance
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Solution Overview
Problem
Current fiber-based packaging technologies are not well-suited for meat, poultry, prepared food, produce, microwavable food containers, and beverage lids due to limitations in moisture, vapor, and oil barriers, which affect structural rigidity and shelf life.
Innovation Solution
Development of novel slurries with added chemical components such as alkylketene dimer (AKD), fluorine-containing polymers, and dry strength additives to create moisture, vapor, and oil barriers, combined with geometric features like ribbed structures and extended vent holes, to enhance the structural integrity and shelf life of molded fiber products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fiber-based packaging is used, then environmental sustainability is improved, but moisture and vapor barriers are insufficient leading to poor structural rigidity and short shelf life
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition of the fiber slurry through the addition of alkylketene dimer (AKD) in specific concentrations (0.1-5% by weight). This chemical parameter change creates a moisture barrier that prevents water penetration while maintaining the fiber-based structure's biodegradability and environmental sustainability.
Solution Approach 2:
The patent creates composite materials by combining conventional fibers (wood pulp, newsprint, corrugated boxes) with chemical additives (AKD, fluorine-containing polymers, dry strength additives). This composite approach integrates the moisture-blocking properties of chemicals with the structural integrity and environmental benefits of natural fibers, resolving the contradiction between sustainability and moisture resistance.
2Duration of action of stationary object
If conventional fiber-based packaging is used, then environmental sustainability is improved, but vapor and oil barriers are insufficient affecting shelf life
Solution Approach 1:
The patent extends shelf life by changing the chemical parameters of the fiber slurry through the addition of fluorine-containing polymers and dry strength additives in controlled concentrations. These parameter changes create vapor and oil barriers that prevent degradation of packaged goods while maintaining the packaging's biodegradable nature.
Solution Approach 2:
The patent develops composite fiber materials that combine natural fibers with vapor-barrier chemicals. This composite structure provides both the longevity needed for extended shelf life and the environmental sustainability of fiber-based packaging, preventing vapor penetration without relying on conventional plastics.
3Object-affected harmful factors
If plastic containers are used, then moisture and vapor barriers are sufficient, but environmental pollution is caused
Solution Approach 1:
The patent changes the fundamental material parameter from synthetic plastic to chemically-modified natural fiber. By adjusting the chemical composition of the fiber slurry with moisture-barrier additives, the patent achieves plastic-like moisture protection while maintaining biodegradability, thus eliminating plastic pollution.
Solution Approach 2:
The patent creates disposable fiber-based packaging that can be used once and then biodegrades naturally. Unlike persistent plastics, these packaging materials serve their protective function and then decompose, eliminating long-term environmental pollution while providing adequate moisture and vapor barriers through chemical modification.
4Strength
If fiber-based packaging without chemical additives is used, then environmental sustainability is maintained, but structural integrity and rigidity are insufficient
Solution Approach 1:
The patent enhances structural integrity by changing the chemical parameters of the slurry through the addition of dry strength additives and fluorine-containing polymers. These parameter changes strengthen the fiber bonds and create a more rigid structure capable of supporting packaged goods without compromising environmental sustainability.
Solution Approach 2:
The patent creates composite fiber materials that combine natural fibers with strength-enhancing chemicals. This composite approach provides the structural integrity and rigidity needed for practical packaging applications while maintaining the environmental benefits of fiber-based materials, accepting controlled chemical complexity to achieve necessary performance.
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 solution enables fiber-based packaging to maintain structural rigidity and prevent moisture and vapor penetration, effectively replacing plastic containers in various applications, including food and beverage industries, while ensuring extended shelf life and environmental sustainability.
Implementation Method 1
a vacuum is applied to the generally convex backside. The vacuum pulls the slurry onto the mold to form the shape of the package
Implementation Method 2
Air is then blown through the tool to eject the molded fiber piece
Data Source
AI summary
Methods and systems for shipping original design manufacturer (ODM) boxes. The system includes: a plurality of corner sets, each comprising at least two fiber cushions; a plurality of end cap sets, each comprising two opposing corrugated sleeves; and a graphical guide comprising and end cap selector and a corner selector. The graphical guide is configured to allow a user to: compare an ODM box to the end cap selector to thereby select one of the plurality of end cap sets; and compare the ODM box to the corner selector to thereby select one of the plurality of end corner sets. Each sleeve comprises a plurality of height score lines, a plurality of width score lines, and a support feature to stabilize the sleeve during folding.