Aqueous Cosmetic Texture via Pullulan and Polysaccharide Composite
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Solution Overview
Problem
Aqueous cosmetics often have a watery texture but struggle to provide a resilient and supple sensation without becoming sticky during application, which existing formulations with high pullulan or polyols fail to address effectively.
Innovation Solution
Combining pullulan with a polysaccharide containing uronic acid and cyclic aldohexose compounds, an amphiphilic substance like polyglycerol fatty acid esters, and an acrylates/C10-30 alkyl acrylate crosspolymer to create an aqueous cosmetic that maintains a non-sticky, supple, and watery texture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pullulan or polyols are added in high content to aqueous cosmetic, then resilient and supple sensation is improved, but stickiness increases
Solution Approach 1:
The patent combines pullulan with a specific polysaccharide containing uronic acid and cyclic aldohexose compounds (such as tremella polysaccharide) to create a composite material system. This composite approach allows the formulation to achieve both resilient/supple sensation and non-stickiness by leveraging the complementary properties of different polysaccharides rather than relying on high concentrations of pullulan alone.
Solution Approach 2:
The patent specifies precise compositional parameters including the mass ratio of pullulan to polysaccharide (5:95 to 45:55) and molecular weight ranges (pullulan: 10^5-10^7, polysaccharide: 10^5-10^8). By controlling these parameters, the formulation achieves the desired texture properties without excessive stickiness, resolving the contradiction through parameter optimization.
2Ease of operation
If aqueous cosmetic maintains watery texture, then application feel is light, but resilient and supple sensation is insufficient
Solution Approach 1:
The patent employs a composite polysaccharide system consisting of pullulan and a specific polysaccharide with uronic acid and cyclic aldohexose compounds. This composite material provides both the light watery texture characteristic of aqueous cosmetics and the resilient/supple sensation, as the specific polysaccharide contributes to texture enhancement without compromising the aqueous nature of the formulation.
Solution Approach 2:
The patent introduces an amphiphilic substance into the aqueous cosmetic formulation, which creates localized regions with different properties. The amphiphilic substance has both hydrophilic and hydrophobic portions, allowing it to provide resilient and supple sensation in specific areas while maintaining the overall watery texture of the aqueous cosmetic, thus resolving the contradiction between texture lightness and sensory richness.
Data Source
AI summary
An aqueous cosmetic comprising pullulan, a polysaccharide including a uronic acid and a cyclic aldohexose compound as constituent monosaccharides, an amphiphilic substance, and an acrylates/C10-30 alkyl acrylate crosspolymer.