Cosmetic Brush With Segmented Hairs for Precision and Spreading
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Solution Overview
Problem
Existing cosmetic brushes lack precision and efficiency in applying products, with voluminous brushes unsuitable for detailed applications and flat brushes inadequate for large areas, leading to unsatisfactory results and the need for multiple brushes, while prior designs with varying density portions struggle with product retrieval from irregular containers and precision applications.
Innovation Solution
A brush with a dual function, featuring a convex spreading surface and a centrally arranged, pointed taking and application surface made of the same or different materials, allowing for precise point-like application and even spreading, facilitating product retrieval from various container shapes and sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If voluminous brushes are used, then large areas can be covered, but precision for detailed applications deteriorates
Solution Approach 1:
The brush head is segmented into multiple groups of hairs with different densities and lengths. The first group has lower density and longer length for spreading products over large areas, while the second group has higher density and shorter length for precise application on small areas. This segmentation allows a single brush to perform both functions effectively.
Solution Approach 2:
Different regions of the brush head are given different local qualities through varying hair density and length. The central region has denser, shorter hairs for precision work, while the peripheral regions have sparser, longer hairs for broad coverage. This local differentiation resolves the contradiction between coverage area and application precision.
2Area of stationary object
If flattened and enlarged head brushes are used, then large areas can be covered, but comfort and performance for precision applications deteriorate
Solution Approach 1:
The brush head is divided into functional segments with different characteristics. The first group of hairs (lower density, longer length) handles large area coverage, while the second group (higher density, shorter length) provides the precision and comfort needed for detailed work, making the brush comfortable and effective for both purposes.
Solution Approach 2:
The brush head incorporates local quality variations where different hair densities and lengths are positioned in specific regions. This creates zones optimized for different functions, allowing the brush to be both comfortable for precision work and effective for large area coverage.
3Manufacturing precision
If specially designed precision brushes with smaller dimensions are used, then precision for detailed applications is improved, but suitability for spreading products on large areas deteriorates
Solution Approach 1:
The brush head is segmented into two functional groups: the second group (higher density, shorter length) provides precision for detailed applications, while the first group (lower density, longer length) enables efficient spreading over large areas. This segmentation allows one brush to replace multiple specialized brushes.
Solution Approach 2:
The brush is designed with multi-functionality, incorporating different hair groups that enable it to perform both precision application and broad spreading functions. This universal design eliminates the need for multiple specialized brushes, improving productivity while maintaining precision.
4Adaptability or versatility
If brushes with different density portions are used, then versatility is improved, but ability to take cosmetic products from irregular containers deteriorates
Solution Approach 1:
The brush head features local quality variations with different hair densities positioned strategically. The overall conformation remains optimized for product pickup from various container shapes, while local density variations provide versatility for different application types without compromising product retrieval ease.
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
The brush (1) for the application of cosmetic products, comprising a grip body (2) having at least a housing seat (3) made to measure for a plurality of hairs (6, 7) adapted to take, apply and spread cosmetic products (10) on a user, in which the plurality of hairs (6, 7) is divided into: a first group of hairs (6) adjacent to one another and fitted to measure in the housing seat (3) and defining a convex spreading surface (8) which is adapted to spread the cosmetic products (10) on the user; a second group of hairs (7) adjacent to one another and inserted in the first group of hairs (6), defining a taking and application surface (9) which is protruding with respect to the spreading surface (8) and has a substantially pointed shape and is suitable for taking the cosmetic products (10) and for their point-like application on the user.