Deep-Drawn Coffee Pod Containers for Reduced Plastic Packaging
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Solution Overview
Problem
Single serve brewing capsules face issues with eco-friendliness due to excessive plastic packaging, inefficient space use, and recyclability challenges, leading to significant waste generation.
Innovation Solution
A single-use coffee pod made from a multi-layer sheet with a specific structure and materials, including a lubricant layer, aluminum layer, and coextrusion coating, designed for deep drawing to achieve a depth-to-diameter ratio of at least 0.5:1, enhancing recyclability and reducing plastic usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If single serve brewing capsules are individually packaged in plastic, then fresh-brewed flavor and preparation convenience are achieved, but packaging material usage increases and recyclability becomes difficult
Solution Approach 1:
The capsule is divided into separable components: a foil lid and a plastic cup body. The foil lid can be removed via pull tab, allowing the plastic cup to be recycled separately without foil contamination. This segmentation resolves the contradiction by enabling convenient single-serve preparation while improving recyclability through component separation.
Solution Approach 2:
The foil lid is extracted as a removable component from the plastic cup body. The pull tab mechanism allows easy removal of the foil lid, separating the two materials so the plastic cup can be recycled without foil contamination. This extraction resolves the packaging complexity issue while maintaining preparation convenience.
2Reliability
If single serve brewing capsules are individually packaged, then fresh-brewed flavor is maintained, but space efficiency in distribution is reduced
Solution Approach 1:
Multiple plastic cup bodies are nested inside a single foil lid, allowing multiple capsules to be stacked vertically in a space-efficient manner for distribution and storage. This nesting arrangement maintains individual capsule freshness while improving space efficiency during transport and storage.
3Strength
If foil lid and plastic cup are affixed together, then capsule integrity is maintained, but recycling becomes difficult due to material contamination
Solution Approach 1:
The capsule is designed with a pull tab on the foil lid that enables easy separation of the lid from the plastic cup body. This segmentation allows the components to be separated for recycling while maintaining capsule integrity during use and storage.
Solution Approach 2:
A pull tab is pre-attached to the foil lid to facilitate easy removal. This preliminary action enables consumers to easily separate the foil lid from the plastic cup for recycling purposes, resolving the contradiction between maintaining capsule integrity and enabling recyclability.
4Adaptability or versatility
If capsules are made small for single serve brewing, then individual choice and variety are achieved, but recycling center efficiency is reduced due to small size
Solution Approach 1:
Multiple small capsule units are combined into a single retail package containing multiple nested capsules. This merging approach maintains the individual choice benefit of single-serve capsules while presenting a larger aggregate size that is more efficient for recycling center handling and processing.
Data Source
AI summary
Described herein are food containers and methods of manufacturing food containers. A food container may include a single-use coffee pod including a multi-layer sheet comprising a rim with a flat top surface, a stacking lip positioned below the rim, an inward tapering sidewall with a draft angle of at least 0.5 degrees and at most 10 degrees positioned below the stacking lip, and a bottom surface; wherein the multi-layer sheet comprises, from outside to inside, a first lubricant layer, an aluminum layer, and a coextrusion coating; and wherein the single-use coffee pod has a depth to diameter ratio of more than 0.5:1.