Solid Hair Shampoo with Polymeric Fillers
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Solution Overview
Problem
Conventional hair washing products, particularly shampoos, face issues such as difficulty in measurement due to liquid texture, wastage, and environmental concerns like high water usage and residue left on hair, while solid formulations like granules or powders often suffer from volatility, disintegration, and inadequate foaming.
Innovation Solution
A solid composition combining anionic sulfonate and carboxylate surfactants with an amphoteric or zwitterionic surfactant and polymeric organic fillers, with a weight ratio of carboxylate to sulfonate surfactants greater than or equal to 0.6, achieving improved cohesion and foaming properties without requiring large water amounts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid shampoo is used, then good cosmetic properties are achieved, but difficulty in measurement and wastage occur
Solution Approach 1:
The patent transforms the shampoo from liquid phase to solid phase by incorporating hydrophilic colloidal particles and thickening agents. This phase transition enables the product to be easily measured and dispensed in controlled amounts while eliminating the runny, difficult-to-measure characteristics of conventional liquid shampoos.
Solution Approach 2:
The invention creates a composite material system combining surfactants, hydrophilic colloidal particles, and thickening agents to form a structured semi-solid or solid composition. This composite structure provides both the cosmetic benefits of liquid shampoo and the measurement control of solid forms.
2Shape
If thickeners are added to modify texture, then compactness is improved, but cosmetic effects deteriorate
Solution Approach 1:
The patent uses a composite system where hydrophilic colloidal particles and thickening agents work synergistically with surfactants to provide both structural integrity and cosmetic performance. The specific combination and ratios of these components ensure that thickening does not compromise foaming, cleansing, or hair conditioning properties.
Solution Approach 2:
The invention carefully controls the concentration and molecular weight parameters of thickening agents and colloidal particles to achieve optimal texture without excessive viscosity. By adjusting these parameters, the formulation maintains spreadability and cosmetic effects while providing sufficient structure for easy application.
3Loss of energy
If solid granule formulations are used, then water usage is reduced, but foaming properties and dissolution become inadequate
Solution Approach 1:
The patent employs phase transition technology where the solid or semi-solid composition rapidly transitions to a functional liquid state upon contact with water. The hydrophilic colloidal particles facilitate rapid wetting and dissolution, enabling quick foaming start within 5-10 seconds while maintaining low overall water usage throughout the washing process.
Solution Approach 2:
The composite formulation combines surfactants with hydrophilic colloidal particles and foam-stabilizing agents that work together to ensure rapid foaming development. The colloidal particles act as nucleation sites for bubble formation, accelerating foam generation while the foam stabilizers maintain abundance and density.
4Loss of energy
If conventional solid formulations are used, then water usage is reduced, but residues remain on fibres
Solution Approach 1:
The patent optimizes the molecular weight, charge density, and hydrophilicity parameters of the colloidal particles and surfactants to ensure complete rinsing. By carefully selecting these parameters, the formulation achieves low residue deposition on hair fibers while maintaining effective cleansing and conditioning at reduced water volumes.
Solution Approach 2:
The composite system combines rinsable surfactants with specifically selected hydrophilic colloidal particles that do not leave unwanted residues. The synergistic interaction between these components ensures effective cleansing without the residue problems associated with conventional solid formulations, even when using less water for rinsing.
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 is easy to handle and measure, produces a rich, creamy foam, rinses out quickly without residue, and provides good cosmetic properties like softness and disentanglement, while being environmentally friendly and reducing water usage.
Implementation Method 1
The composition is easy to handle and measure, produces a rich, creamy foam
Implementation Method 2
produces a rich, creamy foam
Implementation Method 3
comprising a particular combination of at least two anionic surfactants, of which one is of sulfonate type and the other is of carboxylate type
Implementation Method 4
breaks down rapidly on contact with water and readily and quickly produces a firm, creamy and abundant foam
Data Source
AI summary
The present invention relates to a solid composition intended in particular for washing and/or conditioning keratin fibres, notably human keratin fibres such as the hair, and which comprises a particular combination of at least two anionic surfactants, of which one is of sulfonate type and the other is of carboxylate type, in the presence of at least one particular filler. The invention also relates to a packaging article comprising said solid composition, and also to cosmetic processes for treating keratin fibres, in particular human keratin fibres such as the hair, using said solid composition or said packaging article. The invention also relates to the use of said solid composition or of said packaging article for washing and/or conditioning keratin fibres, in particular human keratin fibres such as the hair.