Mascara Brush Flat Surface Mounting for Material Retention
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Solution Overview
Problem
Conventional mascara brushes with linear bristles and cylindrical rods have a poor material hanging effect, requiring multiple applications to achieve desired makeup coverage, which is inconvenient and reduces makeup application efficiency.
Innovation Solution
A mascara brush design featuring brush bristles arranged on a flat surface of the mounting part of the brush rod, increasing the surface area for better material hanging and retention, allowing for more makeup to be applied in fewer strokes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If brush bristles are arranged on a cylindrical brush rod with linear bristles, then the structure is simple and easy to manufacture, but the material hanging effect is poor and the amount of material taken in a single time is small
Solution Approach 1:
The patent transitions from a traditional cylindrical brush rod to a brush rod with a flat surface mounting part. This dimensional change allows brush bristles to be arranged on a flat surface rather than curved around a cylinder, creating a larger effective surface area for material retention and enabling the brush to hold more makeup material in a single application.
Solution Approach 2:
The patent modifies the brush rod geometry by introducing a flat surface on the mounting part, contrasting with the traditional fully cylindrical shape. This geometric modification increases the surface area available for bristle arrangement and material hanging, directly addressing the limitation of small material capacity in conventional cylindrical brushes.
2Reliability
If brush bristles are arranged on a flat surface, then the material hanging and retaining ability is improved, but the brush structure becomes more complex
Solution Approach 1:
The brush rod is divided into distinct functional parts: a holding part and a mounting part with a flat surface. This segmentation allows the flat surface to be optimized specifically for material retention while the holding part maintains structural integrity and simplicity, thereby improving reliability without excessively increasing overall complexity.
Solution Approach 2:
The flat surface is introduced locally on the mounting part of the brush rod rather than changing the entire brush structure. This localized modification concentrates the material retention function on a specific area with enhanced properties (flat surface), while the rest of the brush maintains its simple cylindrical structure, balancing improved reliability with controlled complexity.
Data Source
AI summary
A mascara brush includes a brush rod and brush bristles. The brush rod includes a holding part and a mounting part that are fixedly connected. Roots of the brush bristles are arranged on a side wall of the mounting part, and free ends of the brush bristles are far from the mounting part. The side wall of the mounting part includes a flat surface, and the flat surface is provided with at least one row of the brush bristles. The center lines of the brush bristles are not perpendicularly intersected with the axis of the brush rod. In the mascara brush, the brush bristles are arranged on the flat surface. The flat surface has better material hanging and retaining ability than an arc surface. The mascara brush can dip and retain more makeup materials from a bottle each time, thereby reducing the times of the mascara brush taking materials.