Off-Centered Mascara Applicator with Varying Bristle Lengths
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mascara applicators fail to achieve uniform application and separation of eyelashes due to the sensitivity of the application area and the need for complex hand movements, often resulting in clumping and uneven distribution of mascara.
Innovation Solution
A cosmetic applicator with off-centered projecting parts and varying lengths of application elements, forming both concave and convex curves to create lift and combing zones, allowing for easy application, separation, and curling of eyelashes without requiring complex rotating mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional mascara applicators with uniform bristle lengths are used, then the structure is simple and easy to manufacture, but uniform application and separation of eyelashes cannot be achieved
Solution Approach 1:
The patent applies local quality by varying the length of bristles at different locations along the applicator shaft. Specifically, the bristle length is made non-uniform with shorter bristles in certain regions and longer bristles in other regions, allowing different parts of the applicator to perform different functions (separation, application, curling) simultaneously. This resolves the contradiction by achieving uniform application through localized structural variations without requiring complex mechanisms.
Solution Approach 2:
The patent employs asymmetry by creating a non-uniform bristle length distribution that is deliberately asymmetric along the longitudinal axis of the applicator. This asymmetric configuration allows the applicator to naturally separate and curl eyelashes during a single stroke, achieving multiple effects without symmetric repetition of components, thus simplifying the overall device while improving application uniformity.
2Manufacturing precision
If rotatable mascara brushes are used to achieve better application, then the application effect is improved, but the device complexity and user comfort deteriorate
Solution Approach 1:
The patent extracts the rotation function from a separate mechanical mechanism and integrates it directly into the bristle configuration itself. By making the bristle lengths varying along the shaft, the applicator naturally creates a curling and separating action during simple linear strokes, eliminating the need for motors, batteries, or complex rotating mechanisms while maintaining improved application effects.
Solution Approach 2:
The applicator performs the curling and separating functions automatically through its own structural design rather than requiring external mechanical assistance. The non-uniform bristle lengths are configured to naturally interact with eyelashes during application, creating lift and separation effects without requiring user manipulation of complex mechanisms or additional power sources.
3Manufacturing precision
If complex hand movements are required to achieve desired effect, then the application precision can be improved, but the ease of operation deteriorates
Solution Approach 1:
The applicator is pre-configured with non-uniform bristle lengths that are already arranged to perform separation and curling functions during the application stroke itself. This preliminary arrangement of functional elements eliminates the need for users to perform complex hand movements or adjustments, as the desired lash separation and curling effects are built into the applicator's structure and occur automatically during normal application motions.
Data Source
AI summary
A cosmetic applicator comprising at least three successive projecting parts off-centered relative to a central longitudinal axis of the cosmetic applicator. Each of the at least three successive projecting parts comprises at least one application element. The cosmetic applicator of the present disclosure may be used for cosmetic and care applications such as on skin or on keratinous fibers in the area of mascara application, lash care, nail care, mascara removal, lip application, hair coloring and hair repair etc.