Fan-Shaped Aerosol Diffuser for Hair Root Volume
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Solution Overview
Problem
Conventional aerosol sprays for hair styling are not optimal for localized application, particularly at the roots, as they generate a conical spray that does not effectively provide volume and uniform distribution of the fixing composition.
Innovation Solution
An aerosol device with a diffuser equipped with a slit-shaped end orifice that produces a fan-shaped spray, allowing for better distribution and application of the fixing composition at the hair roots, enhancing volume and fixing efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional aerosol spray with a conical spray pattern is used, then overall fixing of the head of hair is achieved, but localized application at the roots is not optimal and volume is not effectively provided
Solution Approach 1:
The patent transforms the conventional conical spray pattern into a fan-shaped spray pattern by changing the geometry of the dispensing orifice from a single point to a slit-shaped aperture. This dimensional change in the spray delivery mechanism enables the aerosol to spread laterally in a fan pattern, providing superior coverage at the hair roots and allowing for effective localized application while maintaining overall fixing performance
2Quantity of substance
If fixing composition is applied at the roots to provide volume, then uniform distribution is needed, but conventional conical spray does not provide effective distribution
Solution Approach 1:
By changing the spray pattern from conical to fan-shaped through a slit-shaped orifice, the patent achieves superior lateral distribution of the fixing composition across the hair roots. This dimensional change in spray geometry enables uniform coverage in the horizontal plane, making it easier to apply the composition evenly at the roots for volume enhancement
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 device facilitates easier and more uniform application of the fixing composition at the roots, providing greater volume and fixing performance compared to conventional devices.
Implementation Method 1
The propellant has the function of generating a pressure for spraying the liquid phase and for applying it to the hair in the form of a cloud of dispersed droplets
Implementation Method 2
a diffuser equipped with a slit-shaped end orifice that produces a fan-shaped spray
Implementation Method 3
Once applied to the hair, the liquid phase dries, thus enabling the formation of welds necessary for fixing the head of hair by the fixing materials
Data Source
AI summary
The present invention relates to an aerosol device formed from: a container containing an aerosol composition comprising one or more propellants and, in an alcoholic or aqueous-alcoholic medium, one or more fixing polymers, and a means for dispensing the said aerosol composition comprising a diffuser equipped with a slit-shaped end orifice that produces a fan-shaped spray. The present invention also relates to a process for treating and especially for shaping keratin fibres, in particular the hair, comprising the use of this device, and to the use of the said device for shaping keratin fibres.