Angled Applicator Brush with Convex Tuft for Precision
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing eyebrow applicator brushes are limited by their thin, beveled design, which restricts product loading and application precision, making it difficult to apply cosmetics evenly and accurately.
Innovation Solution
A brush with a handle extending along a longitudinal axis and an applicator head that is angled relative to the handle, featuring a tuft of bristles with a convex applicator surface that increases in width towards the middle and tapers towards the tip, allowing for adjustable pressure and precise application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a thin, bevelled brush design is used, then the application precision is improved, but the product loading capacity is reduced
Solution Approach 1:
The brush tuft is segmented into different zones along its length, with the distal portion having a larger transverse dimension for product loading and the proximal portion tapering for precision application. This segmentation allows different sections of the same brush to serve different functions.
Solution Approach 2:
The brush design transitions from a two-dimensional thin bevelled profile to a three-dimensional domed shape with varying transverse dimensions along the longitudinal axis. This adds a dimensional aspect that enables both product capacity and precision application.
2Measurement precision
If a thin, bevelled brush design is used, then the application precision is improved, but the ease of operation is reduced
Solution Approach 1:
The domed applicator surface allows dynamic adjustment of the application zone by varying the pressure applied to the tuft of bristles. This makes the brush adaptable to different application needs, improving ease of operation while maintaining precision.
Solution Approach 2:
The brush design changes the geometric parameters of the applicator surface, making it convex and domed rather than flat or bevelled. This parameter change enables better control over the application zone and improves user control during operation.
3Quantity of substance
If a uniform width brush is used, then the product loading is improved, but the precision application at tapered zones is reduced
Solution Approach 1:
Different sections of the brush tuft have different transverse dimensions tailored to their specific functions. The distal section has larger dimensions for product loading while the proximal section tapers for precision work, implementing local quality variations throughout the brush structure.
Data Source
AI summary
The present invention relates to an applicator brush (1) for applying a cosmetic, make-up or care product to human keratin materials, especially the eyebrows, comprising a handle (4) which extends along a longitudinal axis (X) and, at the distal end thereof, an applicator head (2) having distal (2c) and proximal ends, and carrying a tuft (3) of bristles (6), the free ends (6a) of which define an applicator surface (5) that is convex towards the outside, in which applicator the applicator head (2) extends along a longitudinal axis (Y) that is not parallel to the longitudinal axis (X) of the handle (4), and wherein the tuft (3) of bristles (6) is arranged such that the transverse dimension of the applicator surface (5) increases towards the distal end (2c) of the applicator head (2), passing through a maximum, before decreasing from the location at which the transverse dimension is maximum towards the distal end (2c), the maximum of the transverse dimension of the applicator surface (5) being closer to the proximal end of the applicator head (2) than to the distal end (2c) thereof.