Curved Bristle Cosmetic Applicator with Variable Length Zones
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Solution Overview
Problem
Existing cosmetic applicators, particularly for mascara, lack variability in application behavior, often requiring cumbersome and uncomfortable methods to target individual lashes or small areas, with limited ability to achieve ideal results.
Innovation Solution
A cosmetic applicator design featuring bristles that are curved in the same direction and progressively longer every 90°, with a factor of 1.6 ± tolerance, allowing for variable application behavior by rotating the applicator, and incorporating a comb-like structure for curling and separating lashes, while shorter bristles provide efficient mass transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional cosmetic applicators use uniform bristle designs, then manufacturing is simple, but application behavior lacks variability and cannot effectively target different lash areas
Solution Approach 1:
The patent applies local quality by creating distinct zones of bristles with different lengths and orientations on the applicator head. Short bristles are positioned for general mass application, medium-length bristles for targeted areas, and long bristles for individual lash styling. This spatial variation in bristle properties allows a single applicator to perform multiple functions that previously required multiple tools, resolving the contradiction between versatility and complexity.
Solution Approach 2:
The applicator head is segmented into multiple functional zones with bristles of different lengths (short, medium, long) arranged in specific patterns. This segmentation allows each zone to serve a specific purpose in the makeup application process, enabling variable application behavior without requiring multiple separate applicators, thus improving versatility while keeping the device integrated and manageable.
2Adaptability or versatility
If cosmetic applicators use multiple operation modes for different lash areas, then application versatility improves, but the device becomes cumbersome and uncomfortable to use
Solution Approach 1:
The patent merges multiple functional bristle types (short for mass application, medium for targeted areas, long for individual lashes) into a single integrated applicator head. This consolidation allows users to access different application modes by simply rotating or repositioning the applicator, eliminating the need to switch between multiple separate tools. The result is improved versatility without the cumulative bulk and complexity of multiple dedicated applicators, thereby maintaining ease of operation.
3Adaptability or versatility
If bristles are made longer to reach individual lashes, then styling capability improves, but mass application efficiency decreases
Solution Approach 1:
The patent applies local quality by positioning different bristle lengths in specific zones of the applicator head. Short bristles are arranged in areas optimized for sweeping mass application across multiple lashes efficiently, while long bristles are positioned in zones designed for precise individual lash styling. This spatial differentiation allows each bristle type to excel at its intended function without compromising the other, resolving the contradiction between styling capability and mass application efficiency.
Data Source
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AI summary
Cosmetic applicator with a bristle-bearing core which holds in position a plurality of bristles - being preferably curved and, if curved, in the same direction - which become increasingly longer when viewed along a circumferential direction of the core, wherein the elongated length of the bristles along said circumferential direction of the core becomes longer every 90° by a factor of 1.6 +/- a tolerance factor T.