Cosmetic Applicator Sponge with RFID Tag for Leakage Control
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Solution Overview
Problem
Conventional cosmetic sponges lack features that provide useful information to users and are wasteful due to excessive substance release, failing to control the amount of substance applied during treatments.
Innovation Solution
A cosmetic applicator featuring a sponge with an elastic open-cell three-dimensional membrane structure and a Radio Frequency Identification (RFID) tag integrated with a rigid plastic base, allowing controlled substance release and storage of treatment information, such as type, expiration date, and treatment duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a regular sponge is used for cosmetic application, then it can absorb and release substance, but it causes excessive substance leakage and waste
Solution Approach 1:
The sponge's density is precisely controlled within the range of 30-120 kg/m³, and its thickness is maintained at 2-10 mm. These parameter optimizations enable the sponge to absorb exactly 5-7 cc of substance while preventing spontaneous leakage, resolving the contradiction between substance retention and controlled release.
Solution Approach 2:
The RFID tag integrated into the applicator provides feedback information about the substance type, expiration date, and treatment duration. This feedback mechanism allows users to adjust their application technique to achieve optimal substance release while minimizing waste.
2Loss of information
If a regular sponge is used, then it provides basic application function, but it fails to provide useful treatment information to the user
Solution Approach 1:
The RFID tag is integrated directly into the applicator handle, merging the information storage function with the application tool. This combination provides treatment information (substance type, expiration date, duration) without significantly increasing overall device complexity, as the tag is embedded within the existing structure.
Solution Approach 2:
The applicator serves multiple functions: it applies cosmetic substance, provides treatment information via RFID, and guides proper usage through the integrated information system. This multi-functionality addresses the information deficit while maintaining reasonable structural complexity.
3Quantity of substance
If the sponge absorbs more substance, then it can cover larger treatment areas, but it increases the risk of spontaneous leakage
Solution Approach 1:
By optimizing the sponge density to 30-120 kg/m³ and thickness to 2-10 mm, the sponge achieves maximum absorption capacity (5-7 cc) while maintaining structural integrity that prevents spontaneous leakage. The controlled pore structure at this density allows optimal substance retention.
Solution Approach 2:
The sponge is designed with a convex curved surface rather than a flat surface. This curvature distributes the absorbed substance evenly across the treatment area, allowing larger coverage while maintaining controlled release and preventing leakage at any single point.
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 enables precise control over substance release, prevents wastage, and provides users with essential treatment information, enhancing the efficiency and effectiveness of cosmetic treatments.
Implementation Method 1
a sponge having an elastic open-cell of a three-dimensional membrane structure of elastic polymer; a predefined density enabling to absorb the substance
Implementation Method 2
a Radio Frequency Identification (RFID) tag integrated to the rigid plastic base
Data Source
AI summary
A cosmetic applicator, comprising a sponge to absorb substance and prevent leakage thereof is provided herein. The sponge having an elastic open-cell of a three-dimensional membrane structure of elastic polymer and is double over molded in combination with the rigid plastic base. The sponge has predefined density enabling to absorb the substance and skin surface having predefined thickness to prevent a spontaneous release of the substance. The substance may be squeezed out of the sponge only when applying pressure on the sponge. A Radio Frequency Identification (RFID) tag is integrated to the rigid plastic base to allow information related storage.