Deodorant Applicator Airflow Design for Faster Skin Drying
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Solution Overview
Problem
Current antiperspirant and deodorant products have long drying times, which is a persistent issue despite advancements in chemical formulas, and they often cause skin irritation and staining, with packaging contributing to environmental concerns.
Innovation Solution
A device that uses fluid dynamics principles, including a coanda surface and Venturi-Ejector effect, to enhance airflow and reduce drying time, combined with a portable and exchangeable vessel design for improved delivery and reduced waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid or gel form antiperspirant/deodorant is applied, then the product can be delivered smoothly to the skin, but the drying time becomes excessively long (5-10 minutes)
Solution Approach 1:
The patent introduces an intermediary substance (powder or flake form antiperspirant/deodorant) that mediates between the liquid/gel product and the skin. This intermediary form maintains smooth delivery while significantly reducing drying time, as the powder/flake structure facilitates faster evaporation and bonding to the skin compared to liquid or gel forms.
2Loss of time
If alcohol-based formula is used to improve drying time, then the drying speed increases, but skin irritation occurs
Solution Approach 1:
The patent changes the physical state parameter of the antiperspirant/deodorant from liquid/gel to powder or flake form. This parameter change enables faster drying without requiring alcohol-based formulas, thereby achieving quick drying times while avoiding skin irritation associated with alcohol.
3Loss of time
If aerosol delivery method is used, then very thin layer of product is delivered with quick drying, but consumer control and environmental concerns worsen
Solution Approach 1:
The patent employs a rollerball applicator that enables self-service application, allowing consumers to control the amount and placement of product directly on their skin. This eliminates the lack of control associated with aerosol mists while maintaining quick drying times through the powder/flake formulation.
4Loss of time
If solid stick form with waxes is used, then drying time is reduced, but immediate staining of clothes occurs and formula becomes difficult to remove
Solution Approach 1:
The patent uses powder or flake form antiperspirant/deodorant, which has a porous structure that allows for controlled release and faster drying. This porous form avoids the wax-based solid stick formulation that causes immediate staining and difficult removal, while still achieving reduced drying times compared to liquid/gel forms.
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
Significantly reduces drying time of antiperspirant and deodorant on the skin and minimizes packaging waste by allowing for refilling and consumer choice in formula strength and scent.
Implementation Method 1
A device and method for shortening the drying time of a moist substance such as a liquid, cream, or gel is disclosed
Implementation Method 2
A device that uses fluid dynamics principles, such as the Coanda effect and Venturi-Ejector principle, to enhance airflow and reduce drying time
Implementation Method 3
A device that uses fluid dynamics principles, such as the Coanda effect and Venturi-Ejector principle, to enhance airflow and reduce drying time
Implementation Method 4
potentially incorporating heat or light sources for quicker evaporation
Implementation Method 5
potentially incorporating heat or light sources for quicker evaporation
Data Source
AI summary
A device and method for drying a substance applied to a surface as it is being applied to the surface. The device is designed to apply a form of energy including air movement, heat, or light and can be designed to apply combinations of energy forms. The energy form is applied to the surface during or after the substance has been applied to the surface. A design for the shape of the enclosure and features included in the enclosure for the device are disclosed which enhances the drying efficiency.