Recyclable Packaging With Peelable Interface Between Layers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing packaging technologies, such as tubes and bottles, do not efficiently facilitate recycling, as the materials used for structural and functional layers are not easily separable, leading to challenges in recycling and increased environmental impact.
Innovation Solution
The development of packaging with a peelable interface between structural and functional layers, allowing for easy separation and recycling. This involves using a structural layer based on cellulose and a functional layer based on recyclable plastics, with external and internal reinforcing strips to maintain packaging integrity and facilitate separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If strong adhesion is used between structural and functional layers to ensure packaging integrity during use, then packaging strength is improved, but separation difficulty at end of life increases
Solution Approach 1:
The packaging is divided into distinct structural and functional layers with a dedicated peelable interface between them. This segmentation allows the layers to be easily separated at end of life while maintaining integrity during use, as the interface is designed to fail at controlled locations when separation is needed.
Solution Approach 2:
A peelable interface acts as an intermediary between the structural and functional layers. This interface provides sufficient adhesion to maintain packaging integrity during use, but is designed to separate easily at end of life, enabling recycling of each layer in its appropriate channel.
2Productivity
If different materials are used for structural and functional layers to enable separate recycling, then recycling efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The packaging structure is segmented into different material layers (structural and functional) that can be recycled separately. This segmentation enables recycling efficiency by allowing each layer to be processed in its appropriate channel, while the manufacturing process remains manageable through standardized lamination techniques.
3Ease of operation
If peelable interface is designed to separate layers easily at end of life, then separation ease is improved, but adhesion strength during use may be compromised
Solution Approach 1:
The adhesion between layers is designed to be dynamic rather than static. The peelable interface provides strong adhesion during the product's life to maintain packaging integrity, but is designed to fail easily at controlled locations when separation is needed at end of life, thus adapting the bond strength to different temporal requirements.
Data Source
AI summary
The present invention relates to recyclable packaging comprising parts (1,9,10,11,12) assembled to one another, at least one of said parts of the packaging comprising a structural layer (2) made of a first type of material and a functional layer (3) made of a second type of material, said layers (2,3) being attached to one another by a peelable interface (7) which makes it possible to ensure sufficient adhesion between said structural and functional layers (2,3) to maintain the integrity of the packaging during its use and to separate said layers so that they can be recycled in their respective appropriate recycling channel after they have been separated. The present invention also relates to a method for recycling such packaging.