Antibacterial Cosmetic Brush Tip Filament Coating
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Solution Overview
Problem
Existing cosmetic brush tips face challenges with antibacterial properties, as they are prone to germ proliferation due to moisture retention and limited effectiveness of previous antibacterial measures, especially when used with high-viscosity cosmetics and saliva, leading to hygiene issues and foul odors.
Innovation Solution
A brush tip with antibacterial agent coating or kneaded into the filaments, specifically located behind the discharge port, which prevents germ growth and maintains antibacterial efficacy by using solid agents at normal temperature, ensuring long-lasting antiseptic effects and preventing agent loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If animal hair is used as brush material, then good skin contact and liquid containing properties are achieved, but limited supply and ethical concerns arise
Solution Approach 1:
The patent changes the material parameter from natural animal hair to synthetic fibers, maintaining the functional properties (skin contact, liquid containing) while resolving the supply limitation and ethical issues associated with natural resources
Solution Approach 2:
The patent creates a composite structure by coating synthetic fibers with antibacterial agents, combining the advantages of synthetic materials (availability, consistency) with enhanced functional properties (antibacterial protection)
2Reliability
If antibacterial agents are coated on brush filaments, then germ proliferation is prevented, but the coating may be lost during use
Solution Approach 1:
The patent applies a coating layer of antibacterial agent on the synthetic fiber filaments, creating a protective film that prevents germ proliferation while maintaining flexibility and durability during use
Solution Approach 2:
The patent creates a composite structure by coating synthetic fibers with antibacterial agents, combining the advantages of synthetic materials (availability, consistency) with enhanced functional properties (antibacterial protection)
3Reliability
If antibacterial inorganic particles are kneaded into resin bristle material, then antibacterial effect is achieved, but filament strength decreases and manufacturing complexity increases
Solution Approach 1:
The patent applies antibacterial coating locally on the filament surface rather than kneading particles throughout the entire filament, maintaining the integrity and strength of the filament structure while providing antibacterial protection where needed
Solution Approach 2:
The patent changes the method of applying antibacterial agents from bulk kneading (which compromises strength) to surface coating (which preserves filament integrity), improving both strength and antibacterial effectiveness
4Object-affected harmful factors
If brush is sealed with cap while wet, then protection is provided, but moisture accumulation leads to germ proliferation
Solution Approach 1:
The patent equips the brush with self-contained antibacterial protection through coating the filaments with antibacterial agents, enabling the brush to protect itself against germ proliferation without requiring special storage conditions or ventilation
Solution Approach 2:
The antibacterial coating creates a protective environment on the filament surfaces, preventing germ proliferation in the moisture-trapped interior of the sealed brush, effectively creating an inert zone resistant to microbial contamination
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively suppresses bacterial growth and odors, maintaining hygiene and antibacterial properties even when used intermittently, with the antibacterial agent remaining adhered to the filaments and preventing agent loss during use.
Implementation Method 1
a coating of an antimicrobial agent is formed on the surface of the brush tip filaments, located at least behind the discharge port inside the brush tip
Implementation Method 2
the antibacterial agent remaining adhered to the filaments and preventing agent loss during use
Data Source
AI summary
A brush tip for a cosmetic applicator which is hygienic by preventing the growth of bacteria and other germs in the area of the brush tip not impregnated with the application fluid, as well as the manufacturing method of the brush tip and a cosmetic applicator using the brush tip. This brush tip for a cosmetic applicator includes brush tip filaments and serving as an applying part of the cosmetic applicator having a cosmetic storage for storing a cosmetic fluid, with the rear end of the brush tip attached to the front end of the cosmetic storage. The brush tip incorporates a discharge port that communicates with the cosmetic storage of the cosmetic applicator, and a coating of an antimicrobial agent is formed on the surface of the brush tip filaments, located behind the discharge port inside the brush tip.