Cream Emulsion Stability via Segmented Phase Preparation
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Solution Overview
Problem
Conventional methods for preparing oil in water emulsion cosmetic creams face instability issues, leading to phase separation, which affects product appearance, sensation, and efficacy.
Innovation Solution
A method involving separate preparation of an aqueous phase and a mixed fatty/aqueous phase using turbo-emulsifiers, where the phases are heated and stirred to achieve homogenization before combining, ensuring stability and preventing phase separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional homogenization methods are used for oil in water emulsion, then the emulsion can be prepared, but phase separation occurs leading to instability
Solution Approach 1:
The patent divides the emulsion preparation into two distinct phases: an exclusively aqueous phase and a mixed fatty/aqueous phase. Each phase is prepared separately with specific compounds before being combined, preventing the phase separation that occurs in conventional single-phase mixing methods.
Solution Approach 2:
The patent uses a mixed fatty/aqueous phase as an intermediary between the exclusively aqueous phase and the final emulsion product. This intermediate phase facilitates stable emulsion formation by providing a transition medium that prevents direct separation of oil and water phases.
2Device complexity
If a single phase formulation is used, then the formula is simpler, but the emulsion becomes unstable and separates
Solution Approach 1:
The formulation is segmented into two distinct phases with specific functional compounds in each. The exclusively aqueous phase contains water-soluble compounds while the mixed fatty/aqueous phase contains lipid-soluble compounds and a portion of water, creating a more complex but stable structure compared to conventional single-phase formulations.
Solution Approach 2:
The patent employs composite material principles by combining different types of phases (exclusively aqueous and mixed fatty/aqueous) with different solubility characteristics. This composite structure ensures both stability and functional performance, overcoming the limitations of simpler single-phase formulations.
3Stability of the object's composition
If compounds exclusively for structural stability are added, then emulsion stability improves, but the formula includes non-functional compounds
Solution Approach 1:
The patent achieves stability using only compounds that are functional for the skin or functional for both the skin and the structure of the formula. Each compound serves multiple purposes: active ingredients provide both cosmetic benefit and structural contribution, eliminating the need for separate stabilizers that would add non-functional compounds to the formulation.
Solution Approach 2:
The functional compounds in the formulation serve dual purposes: they provide their primary cosmetic or therapeutic function while simultaneously contributing to the structural stability of the emulsion. The system is self-sufficient, requiring no additional compounds solely for stabilization.
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
This method produces a stable cream product with compounds functional for the skin and structure, maintaining emulsion integrity and enhancing product stability and efficacy.
Implementation Method 1
assembling water-soluble compounds in hot conditions and a first portion of water, and a mixed fatty/aqueous phase, assembling in hot conditions
Implementation Method 2
assemble, and emulsify by stirring, the exclusively aqueous phase and the mixed fatty/aqueous phase
Data Source
AI summary
A method to prepare a cream product includes separately preparing an exclusively aqueous phase and a mixed fatty/aqueous phase, and assembling and emulsify the exclusively aqueous phase and the mixed fatty/aqueous phase.