Multi-orifice Aerosol Diffuser for Hair Dry Washing
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Solution Overview
Problem
Conventional dry shampoos in aerosol form are uncomfortable to apply and lack optimal cleansing and styling properties, particularly at the hair roots, due to their conical spray pattern and excessive residue.
Innovation Solution
An aerosol device with a diffuser equipped with at least two spray orifices, containing sebum-absorbing powders with high sebum uptake capacity, which facilitates even distribution and reduces impact force, combined with styling powders for enhanced volume and body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional single-orifice diffuser is used, then the spray mechanism is simple, but the application comfort is poor due to excessive impact force on the hair
Solution Approach 1:
The diffuser is divided into multiple spray orifices (at least two) instead of a single orifice, which segments the spray stream into multiple smaller streams. This segmentation reduces the impact force on the hair while maintaining effective sebum absorption, directly resolving the contradiction between application comfort and device complexity.
2Ease of operation
If a conventional single-orifice diffuser is used, then the device structure is simple, but the distribution of composition at hair roots is non-uniform
Solution Approach 1:
The single spray orifice is segmented into multiple orifices arranged in a specific pattern, enabling the composition to be distributed more uniformly across the hair roots. This segmentation approach improves distribution uniformity while adding only minimal structural complexity to the diffuser.
3Object-generated harmful factors
If conventional dry shampoo products are used, then basic sebum absorption is achieved, but excessive white residue remains on the hair
Solution Approach 1:
The patent modifies the particle size parameters of the sebum-absorbing powder, using particles with a mean diameter of 1-10 micrometers. This parameter change allows the powder to be finely dispersed and absorbed by sebum without leaving excessive visible residue, while maintaining high sebum absorption capacity.
Solution Approach 2:
The composition uses a composite approach by combining sebum-absorbing powder with specific binders and propellants, creating a formulation that effectively absorbs sebum while minimizing visible white residue through proper material compatibility and dispersion.
4Reliability
If conventional aerosol spray is used, then the spray mechanism is simple, but the cleansing activity at hair roots is insufficient
Solution Approach 1:
The spray mechanism is enhanced by segmenting the single orifice into multiple orifices, which improves the penetration and distribution of the composition at the hair roots. This segmentation increases cleansing activity by ensuring better coverage and contact with sebum at the roots while adding minimal complexity to the overall spray mechanism.
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 provides a comfortable application, effective cleansing, reduced residue, and improved styling effects, including increased volume and body for the hair.
Implementation Method 1
They act by taking up sebum by absorption by means of powders chosen for their sebum-absorbing qualities
Implementation Method 2
take up sebum by absorption by means of powders chosen for their sebum-absorbing qualities
Implementation Method 3
a means for dispensing the said aerosol composition, comprising a diffuser equipped with at least two, and better three, spray orifices
Data Source
AI summary
The present invention relates to an aerosol device including: —a container containing: —one or more propellants, and--a composition including one or more sebum-absorbing powders with a sebum uptake of greater than or equal to 35 m1/100 g, the propellant(s) possibly being present in the composition or, in the container, separate from the composition, —an aerosol device for dispensing the said aerosol composition, including a diffuser equipped with at least two, and better three, spray orifices (22). The invention also relates to a process for the dry-washing and cosmetic treatment of keratin materials, including a step of applying to the hair the cosmetic composition, sprayed from the particular aerosol device.