Flexible Cosmetic Applicator Resolving Handling Precision Trade-off
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cosmetic product applicator devices lack comfort, precision, and ease of application, particularly when applying products like eyeliner, due to their design limitations.
Innovation Solution
A hand-held applicator device with a flexible applicator head featuring a convergent body and a longer, constant-section applicator body of specific dimensions (0.5 mm to 5 mm diameter) that allows precise application along a line, facilitated by the applicator body's flexibility and ability to guide along eyelashes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the applicator body has a larger diameter for easier handling, then ease of operation is improved, but manufacturing precision and application precision deteriorate
Solution Approach 1:
The applicator head is divided into two distinct parts: a convergent body for product pickup and a thin applicator body for precise application. This segmentation allows each part to have optimized dimensions for its specific function, resolving the contradiction between handling ease and application precision.
Solution Approach 2:
Different parts of the applicator have different diameters tailored to their functions. The applicator body has a small diameter (0.5-5 mm) for precision application, while the convergent body has a larger diameter for comfortable handling and product pickup. This local differentiation resolves the size contradiction.
2Ease of operation
If the applicator body is made flexible for comfort and adaptability, then ease of operation is improved, but manufacturing precision deteriorates
Solution Approach 1:
The applicator body is made from flexible elastomeric material that can bend and adapt to the curvature of the eyelid and follow the eyelash line. This flexibility provides comfort and adaptability while the controlled thin dimensions maintain application precision.
Solution Approach 2:
The material properties are optimized by selecting elastomeric materials with specific durometer ranges (Shore A 20-40) that balance flexibility for comfort with sufficient structural integrity to maintain the intended application path and precision.
3Ease of operation
If the convergent body is longer for better product pickup, then ease of operation is improved, but manufacturing precision deteriorates
Solution Approach 1:
The applicator head is segmented into a convergent body optimized for product pickup and a separate applicator body optimized for precise application. This segmentation allows the convergent body to be longer for better product pickup while the applicator body remains short and precise for accurate line application.
Data Source
Figure 1~2
AI summary
The invention relates to an applicator device for a cosmetic product, comprising a flexible applicator head (9) that has a convergent body (10) and an applicator body (11). The convergent body is shorter than the applicator body, and the applicator body has a uniform cross-section.