Hair Care Composition with Benzoic Acid Esters for Dry Conditioning
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Solution Overview
Problem
Existing hair care compositions fail to provide comprehensive conditioning benefits, especially dry conditioning benefits, while maintaining an improved clean feel, as they often result in greasy or sticky residues.
Innovation Solution
A hair care composition comprising a cationic surfactant system, a high melting point fatty compound with a melting point of 25°C or higher, a fatty ester of benzoic acid, and a non-volatile hydrocarbon oil, along with an aqueous carrier, which provides reduced hair volume, friction, and a clean feel by balancing conditioning and rinsability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conditioning agents (cationic surfactants, polymers, high melting point fatty compounds, low melting point oils, silicone compounds) are used to provide conditioning benefits, then hair smoothness and damage restoration are improved, but greasy or sticky residues are generated
Solution Approach 1:
The patent combines multiple conditioning agents in a specific composition: cationic surfactant (0.5-5%), high melting point fatty compound (1-10%), low melting point oil (5-20%), and silicone compound (1-5%). This composite formulation provides comprehensive conditioning benefits while the balanced proportions prevent excessive greasiness or stickiness, resolving the contradiction between effective conditioning and residue formation.
Solution Approach 2:
The patent specifies precise concentration ranges for each ingredient to optimize performance. By controlling the melting points (high melting point compound: 25-60°C, low melting point oil: -10 to 20°C) and adjusting concentrations within defined parameters, the formulation achieves effective conditioning while minimizing harmful residues through parameter optimization.
2Reliability
If high melting point fatty compounds are used to provide dry conditioning benefits, then hair alignment and friction reduction are improved, but clean feel is compromised due to potential greasiness
Solution Approach 1:
The patent uses high melting point fatty compounds (melting point 25-60°C) that remain solid at room temperature and only melt at elevated temperatures. This local quality characteristic allows the compound to provide conditioning benefits on dry hair without creating a greasy feel under normal conditions, as the solid structure prevents excessive oiliness while still delivering anti-frizz and alignment effects.
Solution Approach 2:
By specifying a melting point range of 25-60°C for the high melting point fatty compound and limiting its concentration to 1-10%, the patent optimizes the balance between providing effective dry conditioning (hair alignment, friction reduction) and maintaining a clean, non-greasy feel during normal use conditions.
Data Source
AI summary
Disclosed is a hair care composition comprising: a cationic surfactant system; a high melting point fatty compound; a fatty ester of benzoic acid; a non-volatile hydrocarbon oil; and an aqueous carrier. The compositions of the present invention provide conditioning benefits, especially dry conditioning benefits, while providing improved clean feel.