Modified Starch and Glucan Personal Care Formulations
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Solution Overview
Problem
Conventional roll-on antiperspirant and deodorant products face issues such as wet feel, tackiness, irritation, white residue, settling of powders, and leakage due to high suspending agent content, which affect their efficacy and user experience.
Innovation Solution
A blend of hydroxypropylated and n-octenyl succinate modified starches combined with 1,3-β-D-glucan, such as scleroglucan, is used to create personal care formulations that improve viscosity, texture, stability, and film formation, reducing the need for irritating surfactants and minimizing residue and wetness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional roll-on products use high percentage of suspending agents, then they can maintain powder suspension, but they leave white residues on skin and clothing
Solution Approach 1:
The patent changes the chemical composition parameters by using a specific blend ratio of hydroxypropylated starch (20-40%) and n-octenyl succinate modified starch (60-80%), combined with 1,3-β-D-glucan (0.1-5%). This parameter optimization provides adequate suspension stability while minimizing white residue through improved optical properties of the modified starch blend.
Solution Approach 2:
The patent employs a composite material system combining two different modified starches with distinct functional properties: hydroxypropylated starch for suspension stability and n-octenyl succinate modified starch for reduced residue and improved aesthetics. This composite approach allows simultaneous achievement of multiple performance targets.
2Stability of the object's composition
If conventional emulsions use surfactants to maintain phases, then they can keep oil and water mixed, but they cause irritation and tackiness
Solution Approach 1:
The patent extracts and eliminates harmful surfactants from the formulation by relying on the natural emulsifying and suspending properties of the modified starch blend and 1,3-β-D-glucan. This removal of harmful substances achieves phase stability without irritation or tackiness.
Solution Approach 2:
The modified starch blend acts as an intermediary substance that mediates between oil and water phases, providing natural emulsification without the need for conventional surfactants. The starch molecules facilitate phase mixing while avoiding the harmful effects of traditional emulsifiers.
3Ease of operation
If anhydrous suspensions use high suspending agents, then they avoid wet feel, but they cause settling of powder over time
Solution Approach 1:
The patent optimizes the suspending agent composition by using a specific blend of modified starches with enhanced suspending capabilities. The combination of hydroxypropylated starch and n-octenyl succinate modified starch at optimized ratios provides adequate powder suspension in anhydrous systems without causing settling, while maintaining the desired non-wet feel.
4Stability of the object's composition
If conventional formulations use more suspending agents, then they can prevent powder settling, but they increase device complexity and manufacturing difficulty
Solution Approach 1:
The patent uses a composite material system with a defined ratio range of two modified starches plus 1,3-β-D-glucan that provides effective suspension stability. This composite approach achieves adequate powder suspension without requiring excessively high concentrations of individual suspending agents, thereby simplifying the overall formulation and reducing manufacturing complexity.
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 formulations exhibit enhanced stability, quick drying, improved film formation, and reduced viscosity loss over time, providing a more comfortable and effective user experience with reduced residue and improved aesthetics.
Implementation Method 1
the combination of a blend of modified starches and a 1,3-β-D-glucan together can provide favorable viscosity and texture to personal care formulations
Implementation Method 2
improved aesthetics such as quicker drying, faster film formation, and reduced wetness
Data Source
AI summary
The present disclosure relates to a personal care formulation for masking odor or reducing perspiration comprising a texturizer, a 1,3-β-D-glucan, and an active ingredient wherein: the texturizer is a mixture of hydroxypropylated starch and nOSA starch; and the active ingredient is selected from the group consisting of fragrances and anti-perspirant actives or a combination thereof.