Modified Starch Cosmetic Powder Eliminating Emulsifiers
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Solution Overview
Problem
Conventional cosmetic and dermatological products often irritate sensitive skin due to the need for emulsifiers and preservatives, and they may not effectively provide multipurpose benefits across various skin types while maintaining water repellency and friction reduction properties.
Innovation Solution
A cosmetic or dermatological powder comprising 61-99.99% modified starch and 0.01-29% oily phase with preservative, where Aluminium Starch Octenyl Succinate is formed through esterification and heat-moisture treatment, eliminating the need for emulsifiers and preservatives, and offering water repellency, fat & oil absorbency, and skin friction reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cosmetic products use emulsifiers and preservatives to maintain stability and prevent contamination, then product reliability is improved, but skin irritation and sensitivity increase
Solution Approach 1:
The invention extracts and removes emulsifiers and preservatives from the cosmetic composition, achieving a formulation that relies solely on modified starch and oily phase components. This elimination of harmful additives resolves the contradiction by maintaining product reliability through the inherent stability of the modified starch system while eliminating skin irritation caused by conventional additives.
Solution Approach 2:
The invention changes the chemical parameters of the starch through modification processes (esterification with octenyl succinic anhydride and aluminum treatment), transforming native starch into Aluminium Starch Octenyl Succinate. This parameter change enables the starch to perform multiple functions including emulsion stabilization and preservation without requiring separate emulsifier and preservative components, thus resolving the contradiction between product stability and skin safety.
2Adaptability or versatility
If a single powder formulation is designed to serve multiple skin types and purposes, then product versatility is improved, but formulation complexity increases
Solution Approach 1:
The invention creates a universal powder formulation where Aluminium Starch Octenyl Succinate serves multiple functions simultaneously: water repellency, oil absorption, friction reduction, and skin care. This multi-functionality approach resolves the contradiction by achieving versatility across different skin types and purposes while maintaining a simple two-component formulation structure rather than increasing complexity.
Solution Approach 2:
The invention merges multiple functional properties into a single modified starch component. Instead of combining separate ingredients for water repellency, oil control, and skin care, the modification process integrates these functions into Aluminium Starch Octenyl Succinate, which then combines with the oily phase to create a versatile yet simple formulation suitable for various skin types.
3Reliability
If modified starch is used to provide water repellency and oil absorbency, then skin care properties are improved, but manufacturing precision requirements increase
Solution Approach 1:
The invention performs preliminary modification of the starch through esterification and aluminum treatment before final product formulation. This preliminary action creates Aluminium Starch Octenyl Succinate with predetermined water repellency and oil absorbency properties, allowing for more flexible and less precision-critical final formulation and manufacturing processes while maintaining reliable skin care performance.
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 powder effectively addresses skin sensitivity and irritation, providing multipurpose benefits with enhanced water repellency and skin care properties without using emulsifiers or preservatives, suitable for various skin types and resistant to moisture and bacteriological contamination.
Implementation Method 1
Aluminium Starch Octenyl Succinate is formed through esterification
Implementation Method 2
Aluminium Starch Octenyl Succinate is formed through esterification and heat-moisture treatment
Implementation Method 3
excellent water repellant, fat & oil absorbency
Implementation Method 4
skin asperity and friction reduction properties
Data Source
AI summary
A cosmetic or dermatological powder, which comprises (i) from 61 to 99.99% by weight is relative to the total weight of the powder of at least one starch modified by a combination of esterification and heat-moisture treatment pregelatinization, oxidation, crosslinking, esterification or combination thereof, (ii) from 0.01 to 29.99% by weight is relative to the total weight of the powder, of an oily phase comprising at least one oil.