Segmented Applicator Brush for Simultaneous Multi-Substance Application
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Solution Overview
Problem
Conventional brushes are limited in their applicator effects, particularly when dealing with multiple product types, requiring multiple brushes for different colors, consistencies, or formulas, which can lead to undesirable streaking or striping due to delays in application and blending.
Innovation Solution
A specialized applicator brush with a tuft of bristles arranged in a laterally flattened formation, featuring at least two sets of bristles with distinct lengths and edge configurations, allowing for separate and simultaneous application of multiple substances, enabling precise control and blending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple brushes are used for different product types, then application precision for each product is improved, but device complexity and time loss increase
Solution Approach 1:
The brush head is segmented into multiple distinct bristle sets (first set, second set, third set) with different configurations (lengths, shapes, densities) that can be independently loaded with different products. Each bristle set acts as an independent application unit, allowing simultaneous application of multiple product types while maintaining precision for each product.
Solution Approach 2:
A single brush instrument is designed to perform multiple functions by applying different products through its multiple bristle sets. The brush can apply liquid foundation, powder blush, and contour products simultaneously or sequentially, replacing the need for multiple separate brushes while maintaining application precision for each product type.
2Adaptability or versatility
If multiple brushes are used for different product types, then application versatility is improved, but loss of time increases
Solution Approach 1:
Multiple bristle sets are merged into a single brush head structure, allowing different products to be applied simultaneously or sequentially without removing or switching brushes. The integrated design enables rapid transition between products within the same brush instrument, eliminating time loss associated with brush switching while maintaining versatility.
Solution Approach 2:
The brush head is designed with pre-configured bristle sets in specific positions and orientations, allowing immediate application of different products without preparation or adjustment. The bristle sets are pre arranged to facilitate simultaneous or sequential application, eliminating time loss for reconfiguration when switching between product types.
3Measurement precision
If separate application of multiple products is used, then application precision is improved, but blending quality deteriorates
Solution Approach 1:
The bristle sets are configured with varying lengths and angles that enable dynamic interaction during application. Longer bristles in certain sets can extend beyond shorter bristles, creating natural blending zones when products are applied adjacently. This dynamic geometric arrangement maintains precision for each product while facilitating smooth blending between different product applications.
Solution Approach 2:
Different regions of the brush head have different bristle configurations tailored to specific application needs. Areas with longer bristles are optimized for certain product types while areas with shorter bristles handle others, creating localized quality variations that enable both precise application and natural blending transitions between different products.
Data Source
AI summary
An applicator brush for applying a material to a surface is provided having a brush head of a width X arranged along a central axis. The brush head includes a first set of bristles having proximal base ends attached to a ferrule and distal ends defining a first edge situated in a substantially straight first plane perpendicular to the central axis. The first set of bristles have a first width Y, wherein Y<X. A second set of bristles is provided having proximal ends attached to the ferrule and distal ends defining a second edge situated in a second plane having a second width (X-Y). A length of each bristle in the first and second sets is defined as a distance between its proximal attachment point and its distal end.