Recyclable Cosmetic Container With Mechanical Detachable Layers
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Solution Overview
Problem
Cosmetic containers with multiple layers of different materials, such as plastic and metal, are difficult to recycle separately due to the use of adhesives that bind them together, hindering effective material separation and recycling.
Innovation Solution
A cosmetic container design featuring a cylinder, lining, and sleeve with specific flanges, ridges, and protuberances that allow for easy assembly and disassembly, enabling separate recycling of polyethylene terephthalate and metal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is used to connect layers, then connection strength is improved, but ease of separation for recycling deteriorates
Solution Approach 1:
The container is divided into multiple detachable layers (first layer, second layer, third layer) that can be separated from each other. Each layer has specific structural features (protrusions, recesses, flanges) that enable mechanical connection and disconnection without permanent bonding, allowing easy separation for recycling while maintaining connection strength during use.
Solution Approach 2:
The second layer acts as an intermediary between the first and third layers. It includes a flange that connects to the first layer and a corresponding structure that connects to the third layer, enabling the layers to be joined together mechanically while remaining separable for recycling purposes.
2Adaptability or versatility
If multiple layers of different materials are used, then functional versatility is improved, but recyclability deteriorates
Solution Approach 1:
The container is designed with separable layers made of different materials (plastic, metal, paperboard) that can be easily detached from each other. This segmentation allows each material type to be recycled through appropriate channels while maintaining the functional benefits of using multiple materials in the overall container structure.
Solution Approach 2:
The design enables easy discarding of the complete container and subsequent recovery of individual materials through simple separation. The mechanical connection structures allow consumers to easily separate the layers at recycling facilities, ensuring that each material (plastic, metal, paperboard) can be recovered and processed according to its specific recycling requirements.
Data Source
AI summary
An easily recyclable cosmetic container includes a cylinder, a lining and a sleeve. The cylinder includes an outward flange and a shoulder. The lining includes two recesses and an annular ridge. The sleeve includes an inward flange, rectilinear ridges and an annular protuberance. The outward flange is inserted in one of the recesses and the shoulder is inserted in the remaining one of the recesses when the cylinder is inserted the lining. When the lining is inserted in the sleeve, an end of the lining is covered by the inward flange, the annular ridge is located against the annular protuberance, and the rectilinear ridges are in contact with the lining to prevent the lining from rotation relative to the sleeve.