Heating Applicator Segmentation Prevents Product Dry-Out
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Solution Overview
Problem
Heated applicators for cosmetic and personal care products often cause the formula in the reservoir to dry out, leading to product degradation and interference with the applicator's performance, resulting in customer frustration and unfulfilled benefits.
Innovation Solution
A disposable first subassembly with a reservoir and applicator head, combined with a reusable second subassembly featuring a heat generating portion and power source, allowing for controlled heating and easy replacement of the disposable components to prevent product dry-out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a heated applicator is used repeatedly with a saleable amount of product (4g to 10g), then the product can be used many times (100 times or more), but the formula in the reservoir dries out and the applicator performance degrades after tens of uses
Solution Approach 1:
The system is divided into a reusable heated applicator component and a disposable reservoir component. The reservoir containing the product is separated from the heated applicator, allowing the expensive heated components to be reused while the disposable reservoir prevents product degradation. This segmentation resolves the contradiction by enabling many uses without product dry-out.
Solution Approach 2:
The disposable reservoir is discarded after use while the heated applicator is recovered and reused with a new reservoir. This principle allows the valuable heated components to be recovered and reused multiple times, while the depleted reservoir is discarded, preventing the problem of product dry-out affecting the applicator.
2Reliability
If the applicator head remains mounted in the reservoir for repeated uses, then the mounting seals the reservoir and protects the product, but residual product builds up on the applicator working surface and interferes with performance
Solution Approach 1:
The applicator head is extracted from the reservoir after each use or when product depletion occurs. This allows the applicator to be cleaned or replaced while the reservoir remains sealed. The separation enables maintaining both the sealing function and the applicator performance without residual product buildup interference.
Solution Approach 2:
The mounting connection between the applicator head and reservoir is made dynamic rather than permanent. The applicator can be easily attached and detached from the reservoir, allowing flexible operation where the applicator can be removed for cleaning or replacement while the reservoir maintains its seal when not in use.
3Ease of operation
If the reservoir is exposed to heat repeatedly, then the product can be heated for application, but the product formula degrades and dries out
Solution Approach 1:
The product reservoir is segmented from the heated applicator components. Only the applicator head containing a small amount of product is exposed to heat, not the entire reservoir. This segmentation minimizes heat exposure to the product formula, preventing degradation while still enabling heated application.
Solution Approach 2:
Instead of heating the entire reservoir contents repeatedly, only a partial amount of product in the applicator head is heated at a time. This partial heating approach reduces cumulative heat exposure to the overall product formula, preventing dry-out and degradation while providing sufficient heated product for application.
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 prevents product dry-out and maintains applicator performance by allowing for the reuse of the heat generating components with new disposable subassemblies, ensuring consistent product quality and user satisfaction.
Implementation Method 1
the heat generating portion is disposed inside the applicator head for heating product in the reservoir and/or on the applicator head
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A system for sampling a heated product comprising a disposable first subassembly having an applicator head, and a physically separate reusable second subassembly having an electric heating circuit. Prior to use, the two subassemblies are able to form a rigid connection. As a result of forming this connection, the applicator head is transferred to the second subassembly such that a portion of the electric heating circuit is inserted into an interior space of the applicator head. In this configuration, the second subassembly is used to apply heated product.