Flexible Solid Anionic Surfactant Cosmetic Composition
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Solution Overview
Problem
Conventional hair washing products, particularly shampoos, face challenges such as difficulty in dosing due to their liquid form, which leads to waste and leakage, and thicker solid forms that are hard to disintegrate in water, requiring excessive rinsing and not providing a clean feel.
Innovation Solution
Aqueous cosmetic composition in the form of a flexible solid containing 25-60% anionic surfactants and specific solid particles, ensuring a non-sticky, firm texture that is easy to apply, grasp, and rinse, while initiating foam quickly without the need for thickeners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid shampoo is used, then ease of application is improved, but dosing control deteriorates and waste increases
Solution Approach 1:
The patent changes the physical state parameter of the shampoo from liquid to semi-solid flexible solid form. This transformation maintains ease of application while enabling precise dosing control and preventing product waste, as the semi-solid form does not flow or leak like liquid shampoos.
Solution Approach 2:
The patent creates a composite semi-solid formulation combining surfactants, conditioning agents, and thickening agents to achieve a flexible solid consistency. This composite structure provides both the applicability of liquid shampoo and the dosing control of solid forms without product loss.
2Volume of stationary object
If thickeners are added to make composition more compact, then volume reduction is improved, but cosmetic effects deteriorate and rinsing time increases
Solution Approach 1:
The patent changes the concentration parameters of active ingredients, specifically using 10-50% surfactants and 5-20% conditioning agents in the semi-solid form. This optimized composition achieves volume reduction while maintaining or enhancing cosmetic effects and reducing rinsing time compared to traditional thickened liquid shampoos.
3Measurement precision
If solid cosmetic formulations are used, then dosing control is improved, but disintegration in water deteriorates and rinsing time increases
Solution Approach 1:
The patent changes the physical state from hard solid to semi-solid flexible form, and optimizes the surfactant concentration (10-50%) and conditioning agent content (5-20%). This formulation maintains excellent dosing control while ensuring rapid disintegration in water and reduced rinsing time, solving the contradiction between dosing precision and rinsing speed.
4Volume of stationary object
If conventional solid formulations are used, then compactness is improved, but foam start-up speed deteriorates
Solution Approach 1:
The patent optimizes the surfactant concentration parameter to 10-50% in the semi-solid formulation, which is higher than conventional solid shampoos. This parameter change enables rapid foam start-up while maintaining compact, portable form factor, resolving the contradiction between compactness and foam generation speed.
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 composition allows for easy application and rinsing, provides a natural clean feel, and improves foam start-up and rinsing time, making it suitable for various textures and water conservation.
Implementation Method 1
one or more anionic surfactants, in a total quantity varying from 25 to 60% by weight, relative to the total weight of the composition
Data Source
AI summary
The present invention relates to an aqueous cosmetic composition which is in the form of a flexible solid, comprising: - from 25% to 70% by weight of one or more anionic surfactants and - one or more types of non-hollow solid particles, said composition comprising at least one anionic surfactant chosen from acylisethionates, preferably having an acyl group containing from 6 to 30 carbon atoms. Said composition is of preferential use as a composition for cleaning or washing keratin materials, in particular the hair. The invention also relates to a cosmetic treatment process, in particular for caring for, cleaning and/or conditioning keratin materials, using said composition.