Hair Styling Cream with Composite Powder for Non-Sticky Hold
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Solution Overview
Problem
Existing hair styling products using vinylpyrrolidone-containing polymers or copolymers often become sticky due to plasticization by waxes, failing to provide a high hold without a sticky feel.
Innovation Solution
A cosmetic composition comprising 0.5-8% wax with a melting point over 37°C, 0.5-5% fatty alcohol, 0.2-2% vinylpyrrolidone-containing polymer or copolymer, and 0.1-10% composite powder with immobilized silicon dioxide on silicone elastomer particles, which provides high hold without stickiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vinylpyrrolidone-containing polymers or copolymers are used as firming substances with waxes, then the hold of the hairstyle is improved, but the styling product becomes sticky
Solution Approach 1:
The patent changes the molecular weight parameter of the vinylpyrrolidone-containing polymer to a specific range (10,000-1,000,000, preferably 50,000-500,000) to optimize the balance between hold and stickiness. This parameter adjustment allows the polymer to provide sufficient firming effect while reducing plasticization-induced stickiness
Solution Approach 2:
The patent employs a composite formulation combining vinylpyrrolidone-containing polymer with specific waxes (beeswax, carnauba wax, candelilla wax, or their esters) in optimized proportions. This composite material approach creates synergistic effects where the wax provides structure and the polymer provides hold, while the specific composition ratio prevents excessive plasticization and stickiness
2Reliability
If waxes are used to provide hold and structure, then the styling result is improved, but the hair feels sticky and not smooth
Solution Approach 1:
The patent specifies particular wax types (beeswax, carnauba wax, candelilla wax, or their esters) and controls their content within 1-10% by weight. This parameter control ensures the wax provides sufficient hold and structure while maintaining a smooth, non-sticky feel on the hair
Solution Approach 2:
The patent creates different functional zones within the styling product: the vinylpyrrolidone-containing polymer (at controlled concentrations of 0.1-5% by weight) provides firming in specific areas, while the wax components provide structure and smoothness in other areas, achieving overall balance between hold and smooth feel
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 effectively delivers a high hold to hair without making it sticky, ensuring a smooth and groomed feel, and can be evenly distributed.
Implementation Method 1
particles of silicon dioxide (B) are immobilized on the surface of the powdered particles of the silicone elastomer (A)
Implementation Method 2
the waxes and optional other components of the styling agents which are used plasticize them
Data Source
AI summary
A cosmetic composition for temporarily shaping hair includes, in a cosmetically acceptable support—respectively with respect to the total weight of the composition—e) from about 0.5% to about 8% by weight of a wax with a melting point of more than about 37° C.,f) from about 0.5% to about 5% by weight of a fatty alcohol,g) from about 0.2% to about 2% by weight of a vinylpyrrolidone-containing polymer or copolymer, andh) from about 0.1% to about 10% by weight of composite powder comprising(A) powdered particles of a silicone elastomer, and(B) particles of silicon dioxide,wherein the particles of silicon dioxide (B) are immobilized on the surface of the powdered particles of the silicone elastomer (A).