Asymmetric Cosmetic Applicator Tip Design
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Solution Overview
Problem
Existing cosmetic applicators for human keratin materials, such as eyeliner, lip products, and eyeshadow, lack versatility in line thickness and ease of use, with complex shapes being difficult to manufacture and practical applicator pens offering inferior performance.
Innovation Solution
A cosmetic applicator with a unique tip design featuring a base part and application part, having multiple surfaces with distinct contours and edges, made from porous materials like synthetic or natural fibers, allowing for capillary action and easy product diffusion, enabling precise and flexible application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex shapes are used for applicator end pieces to achieve different line thicknesses, then makeup versatility is improved, but manufacturing complexity and difficulty increase
Solution Approach 1:
The applicator tip is designed with asymmetric contours including a convex surface, a concave surface, and a planar surface, where each surface has a unique shape that is not symmetrical about any axis or median plane. This asymmetric design enables the applicator to create different line thicknesses and makeup effects depending on the orientation and angle of application, achieving versatility without requiring multiple separate applicators or complex mechanical structures.
2Ease of operation
If applicator pens are used to improve ease of use, then practicality is improved, but application performance deteriorates
Solution Approach 1:
The applicator tip features locally differentiated surfaces with distinct properties: a convex surface for creating fine lines, a concave surface for broader application, and a planar surface for precise control. Each surface is optimized for specific application needs, allowing the user to achieve professional-grade makeup application results while maintaining the simplicity and ease of use of a pen-style applicator.
3Adaptability or versatility
If multiple applicator tips are provided to achieve different line thicknesses, then makeup versatility is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
Multiple functional surfaces (convex, concave, and planar) are merged into a single integrated applicator tip structure. This unified design combines the functionality of multiple separate applicators into one component, providing various line thicknesses and makeup effects while simplifying manufacturing processes and reducing assembly complexity compared to providing multiple separate tips or applicators.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The applicator provides new makeup effects and improved ease of use by allowing different line thicknesses and application styles, enhancing the effectiveness and usability of cosmetic product application.
Implementation Method 1
The applicator tip is made of a porous material, notably of synthetic or natural fibres that are all oriented substantially in the same direction, notably along the longitudinal axis (X), and assembled to form a felt. The applicator tip is preferably impregnated with the cosmetic product to be applied, notably eyeliner, a lip product, eyeshadow or mascara. This can allow the product to diffuse easily by capillary action within the applicator end piece on account of its porosity.
Data Source
AI summary
Applicator for applying a cosmetic product to human keratin materials, having:a holder andan applicator tip (20), of longitudinal axis (X), that is carried by the holder and has:a base part (22), of axis (X), for fastening to the holder by way of at least one of its portions, andan application part (24) that is attached to the base part (22) and has at least three surfaces (26, 28, 30), each having a contour formed byat least one edge (34), and/ora base line (36) that acts as a junction between the application part (24) and a cylindrical portion, of axis (X), of the base part (22),the shapes of the contours of the surfaces (26, 28, 30) being different in pairs and not symmetrical to one another about an axis or a median plane.