Mascara Container Bayonet Assembly for Easier Material Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cosmetic containers composed of multiple materials, such as aluminum and plastic, are difficult to recycle effectively due to complex material separation, often resulting in the sacrifice of lower-grade materials to recycle the more valuable components.
Innovation Solution
The cosmetic container features detachable form-fitting and material-fitting connections, particularly a bayonet connection between the applicator holder and brush rod, along with a differentiated cap structure allowing for separate recycling of components, minimizing plastic content and enabling a uniform recycling process for the remaining materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cosmetic containers are designed as material hybrids with multiple components (aluminum and plastic), then the container functionality and performance are improved, but the complexity of material separation and recycling effectiveness deteriorates
Solution Approach 1:
The cosmetic container is divided into separate components (container body, cap, wiper, applicator) made of different materials, each capable of independent recycling. The detachable connections enable physical separation of aluminum and plastic components, allowing each material to be recycled through appropriate processes without requiring complex separation of the entire hybrid structure.
2Productivity
If detachable material interfaces are implemented for separation between components, then the recyclability is improved, but the device complexity and manufacturing complexity deteriorates
Solution Approach 1:
The connections between components are designed as detachable interfaces that can be easily separated during recycling. The bayonet connection between applicator holder and brush rod, along with the separable cap components, enable dynamic disassembly without complex tools or processes, allowing rapid separation of materials for recycling while maintaining structural integrity during use.
3Productivity
If the plastic content is minimized to reduce non-recyclable material, then the recyclable material proportion is improved, but the functionality and performance of the container deteriorates
Solution Approach 1:
The plastic wiper component is extracted as a separate, detachable element that can be removed and recycled independently. This allows the majority of the container (aluminum body and cap) to be recycled through metal processing, while the plastic wiper can be processed separately, maximizing the overall recyclable material proportion while maintaining the functional requirements of each component.
4Ease of operation
If bayonet connection is used between applicator holder and brush rod, then the ease of applicator replacement is improved, but the complexity of material separation deteriorates
Solution Approach 1:
The bayonet connection provides a dynamic interface that is easily disassembled by hand for applicator replacement during use, yet can be efficiently separated by automated recycling equipment. The simple rotational locking mechanism of the bayonet connection allows rapid manual separation while remaining compatible with automated sorting and separation processes for recycling.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a cosmetic container, in particular a mascara container (400) comprising as components a container part (401), a container cap (402), a wiper (436) inserted into a container neck arranged on the container part, and an applicator (403) connected to the container cap, the applicator having a brush bar (411) provided with an applicator brush at its free end, which penetrates the wiper, wherein material interfaces are formed at least partially to separate the different or matching materials, which are designed as a detachable positive-locking, material-locking or force-locking connection, wherein a connecting end (412) of the brush bar (411) is connected to an applicator holder (414) by means of a bayonet connection (413).