Compact Mascara Applicator With Precision Tooth Dimensions
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Solution Overview
Problem
Existing applicators for applying mascara to eyelashes are not satisfactory, particularly for short eyelashes, as they often fail to provide accurate application and can obstruct the field of vision, and are not adaptable to various lash lengths.
Innovation Solution
A compact applicator with a core and teeth that are specifically designed to be less than 6 mm in diameter over 70% of its length, featuring teeth with lengths between 0.5 mm to 1.8 mm and thicknesses between 0.2 mm to 0.65 mm, allowing for precise application without obstructing the view and accommodating different lash lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the applicator diameter is reduced to less than 6 mm, then the applicator can apply makeup to short eyelashes without obstructing the field of vision, but the core section must be maintained to avoid excessive flexibility
Solution Approach 1:
The patent applies parameter changes by precisely controlling the core section dimensions (maintaining a minimum section of 0.8 mm to 1.5 mm) and tooth dimensions (length 0.5-1.8 mm, thickness 0.2-0.65 mm) to achieve the optimal balance between applicator compactness and structural reliability, ensuring the core has sufficient rigidity while the overall applicator remains compact at less than 6 mm diameter
2Length of moving object
If the teeth are made shorter (0.5 mm to 1.8 mm), then the applicator can reach short eyelashes more effectively, but the teeth must maintain sufficient thickness to provide structural support
Solution Approach 1:
The patent applies parameter changes by optimizing the tooth dimensions within specific ranges (length 0.5-1.8 mm and thickness 0.2-0.65 mm) to simultaneously achieve the ability to reach short eyelashes while maintaining sufficient structural support, with the thickness parameter specifically tuned to provide the necessary strength for the reduced tooth length
3Volume of moving object
If the applicator is made more compact, then the field of vision obstruction is reduced, but the manufacturing precision requirements increase to maintain core integrity
Solution Approach 1:
The patent applies parameter changes by defining precise dimensional ranges for the core section (0.8 mm to 1.5 mm) and overall applicator diameter (less than 6 mm, preferably 5.5 mm or less) to achieve compactness while establishing clear manufacturing precision requirements that ensure core integrity is maintained during production
Data Source
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Figure 11b~13c
AI summary
The present invention relates to an applicator (2) for combing the eyelashes and/or the eyebrows and/or for applying a composition thereto, the applicator comprising a molded applicator member (8), comprising: • a core having a longitudinal axis; and • teeth that extend outwards from the core, the majority of the teeth having a length lying in the range 0.5 mm to 1.8 mm; the applicator member (8) having a greatest transverse dimension, measured perpendicularly to the longitudinal axis of the core, that is strictly less than 6 mm, on at least 70% of the length of the applicator member.