Mascara Brush Component With Angled Application Members

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Solution Overview

Problem

Existing mascara brushes do not effectively enhance the application of mascara on eyelashes, leading to insufficient curving and eye opening.

Innovation Solution

A mascara brush component with application members that define an application plane, forming a non-zero angle between 2° and 30° with the longitudinal direction, and are produced from the same elastomer material as the cylindrical sleeve, allowing for improved mascara distribution and lash curvature.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional mascara brushes with application members parallel to the longitudinal direction are used, then the brush structure is simple and easy to manufacture, but the eyelash curving effect is insufficient and eye opening is not enhanced

Engineering Contradiction:
Improvebrush structure simplicityVSAvoideyelash curving effect
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent changes the geometric parameter of the application members by tilting them at a specific angle (5°-15°) relative to the longitudinal direction, rather than keeping them parallel. This parameter change transforms the brush's interaction with eyelashes, enabling the bristles to sweep along the lash shaft and create curvature, thereby resolving the contradiction between structural simplicity and curving effectiveness

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention introduces a new spatial dimension by tilting the application members out of the plane perpendicular to the longitudinal direction. This creates a three-dimensional configuration where the application members extend at an angle, adding a sweeping motion dimension that conventional parallel brushes lack, thus achieving eyelash curving without significantly complicating the manufacturing process

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If application members are tilted at an angle of 5°-15° relative to the longitudinal direction, then significant eyelash curving and wider eye opening are achieved, but the brush structure becomes more complex

Engineering Contradiction:
Improveeyelash curving effectVSAvoidbrush structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent optimizes the tilt angle parameter within a specific range (5°-15°) to achieve the desired eyelash curving effect while minimizing structural complexity. This controlled parameter change ensures that the application members are tilted enough to create sweeping motion and lash curvature, but not so much that the brush becomes difficult to manufacture or use

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention applies local quality by tilting only the application members (bristles) while keeping the brush handle and ferrule simple and conventional. This localized modification allows the complex tilting function to be implemented only where needed at the brush tip, rather than redesigning the entire brush structure, thus achieving curving effect with minimal increase in overall device complexity

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11241074B2Mascara brush component, mascara brush and mascara application assembly
Publication Date: 2022.02.08 PARFUMS CHRISTIAN DIOR SA
  • US11241074B2 patent drawing
  • US11241074B2 patent drawing
  • US11241074B2 patent drawing

AI summary

The mascara brush component comprises: a body (12) that extends along a longitudinal direction (X) and that comprises an outer surface, a row of application members (13) that each extend between a first end (16) connected to the body (12) and a free second end (17) at a distance from the body. The application members of the row extend on average in an application plane (P), and the longitudinal direction (X) forms, with the application plane (P), a non-zero angle between 2° and 30°.