Hybrid Paper-Plastic Package for Moisture-Resistant Edges
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Solution Overview
Problem
Existing packaging technologies often fail to effectively protect paper-based materials from moisture ingress and damage, particularly at exposed edges, while also considering environmental impact.
Innovation Solution
A hybrid package design incorporating a frame made from plastics material and a wall made from paper or paper-based material, with the frame covering the exposed edges of the wall to prevent moisture entry and damage, using a combination of materials like polypropylene and paperboard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If paper-based material is used for packaging wall, then environmental impact is reduced and recyclability is improved, but moisture protection is compromised particularly at exposed edges
Solution Approach 1:
The patent combines paper-based material with plastics material to create a hybrid package. The paper-based wall provides environmental benefits while the plastics frame and coating provide moisture protection, creating a composite structure that achieves both ecological and protective functions simultaneously.
Solution Approach 2:
The plastics material is applied specifically to exposed edges and surfaces where moisture protection is most needed. The frame structure and edge coating provide localized protection to vulnerable areas while maintaining the overall paper-based construction for environmental sustainability.
2Object-affected harmful factors
If frame is added to cover exposed edges, then moisture protection is improved, but device complexity increases
Solution Approach 1:
The frame and wall components are merged into a single integrated structure where the plastics frame is formed to fit around and protect the paper-based wall. This combining of functions reduces the need for separate protective elements and simplifies the overall package construction.
Solution Approach 2:
The plastics frame serves multiple functions simultaneously: it provides structural support, protects exposed edges from moisture, and maintains the package shape. This multi-functionality reduces the need for additional separate components, thereby reducing overall complexity.
3Reliability
If multiple materials are combined, then performance and environmental impact are improved, but manufacturing complexity increases
Solution Approach 1:
The package is divided into distinct segments - a paper-based wall component and a plastics frame component. Each segment can be manufactured separately using optimized processes for its specific material, then assembled together. This segmentation allows for specialized manufacturing techniques for each material type while maintaining overall manufacturing efficiency.
Data Source
AI summary
A hybrid package (10) is provided and comprises a wall (20) formed from a paper or paper-based material and a frame (15) formed from a plastics material. The frame (15) includes a step which is positioned against a free edge of the wall, whereby one or more exposed edges of the wall are protected by the frame.