Translucent Cosmetic Emulsion with Sucrose Esters
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Solution Overview
Problem
Current cosmetic compositions fail to achieve a stable, syrupy texture without stickiness and a translucent or transparent appearance, which is essential for customer satisfaction and ease of use in pipettable bottles.
Innovation Solution
A cosmetic composition in the form of an oil-in-water emulsion, comprising an emulsifying system with sucrose palmitate and/or sucrose laurate, an aqueous phase with a specific glycerol-to-water ratio, and a high percentage of fatty phase with oily esters, which is prepared by slowly adding the fatty phase to the aqueous phase under stirring and allowing it to cool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cosmetic composition uses water-in-silicon emulsion or aqueous gel, then it can be pipetted from the container, but it lacks comfortable touch and does not give a sensation of richness
Solution Approach 1:
The patent changes the rheological parameters of the cosmetic composition by using a specific oil-in-water emulsion system with sucrose esters as emulsifiers and a high proportion of fatty phase (at least 50% by weight). This formulation achieves optimal viscosity and texture parameters that provide both pipettable consistency and comfortable, non-sticky touch sensation on the skin.
2Object-generated harmful factors
If the cosmetic composition has sufficient consistency for rich hand feeling, then it provides comfortable touch, but it becomes difficult to take out from the container
Solution Approach 1:
The patent creates a dynamic rheological profile where the composition maintains higher viscosity at rest (providing rich hand feeling) but exhibits shear-thinning behavior during application. The oil-in-water emulsion system with sucrose esters allows the product to flow easily when subjected to shear stress from dispensing, then regain viscosity upon contact with skin, balancing consistency and ease of removal.
3Illumination intensity
If the cosmetic composition achieves translucent or transparent appearance, then it provides aesthetic appeal and formulation freedom, but it compromises stability
Solution Approach 1:
The patent employs a composite emulsion system combining water phase, oil phase (at least 50% by weight), and sucrose ester emulsifiers in a specific configuration. This composite structure creates a stable oil-in-water emulsion that maintains translucency through proper phase distribution and droplet size control, while the sucrose esters provide steric stabilization preventing separation, thus achieving both aesthetic appeal and long-term stability.
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 stable, non-sticky, and translucent, providing a rich hand feel while being pipettable, maintaining its physical properties even after storage at elevated temperatures, and can be used for skin care to prevent or reduce signs of aging.
Implementation Method 1
a cosmetic composition in the form of an oil-in-water emulsion comprising, in a physiologically acceptable medium: (A) an emulsifying system comprising sucrose palmitate and/or sucrose laurate
Implementation Method 2
an emulsifying system comprising sucrose palmitate and/or sucrose laurate
Implementation Method 3
slowly adding the fatty phase (C) to the aqueous phase (B), under stirring
Implementation Method 4
letting the obtained emulsion get cool
Data Source
AI summary
Disclosed is a stable cosmetic composition having a syrupy texture while not being sticky, and translucent (or even transparent) appearance. Further disclosed is a method of preparation of such composition, as well as a method of its use.