Solid Hair Conditioner Composition for Heat Stability and Uptake
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Solution Overview
Problem
Solid conditioner bars for keratin fibers face a challenge in achieving both temperature stability and ease of product uptake, as high melting point ingredients compromise ease of use.
Innovation Solution
A solid cosmetic composition for keratin fibers comprising non-silicone lipophilic compounds with a melting point above 25°C, pulverulent excipients, and cationic/cationizable compounds, with limited water content, to create a stable and easy-to-use conditioner bar.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If high melting point ingredients (fatty alcohols or waxes) are used to guarantee temperature stability, then stability at temperatures up to 40 degrees is improved, but ease of product uptake is highly reduced
Solution Approach 1:
The patent changes the melting point parameter of the lipophilic compounds from traditionally high melting point fatty alcohols/waxes to non-silicone lipophilic compounds with melting points between 25-60°C. This parameter optimization allows the composition to remain stable at storage temperatures while becoming sufficiently soft and pliable at application temperature for easy uptake and distribution.
Solution Approach 2:
The patent creates a composite formulation combining non-silicone lipophilic compounds with specific melting point range, pulverulent excipients, and cationic/cationizable compounds. This composite approach balances the conflicting requirements by selecting materials whose combined properties achieve both temperature stability and ease of application, avoiding the extremes of either very high or very low melting point ingredients.
2Reliability
If solid conditioner bars are formulated with high melting point materials, then product stability is improved, but product uptake and abrasion properties deteriorate
Solution Approach 1:
The patent optimizes the melting point parameter to a specific range (25-60°C) rather than using traditionally high melting point materials. This creates a reliability-stability balance where the composition remains solid and stable during storage but becomes sufficiently soft during application for effective uptake and hair conditioning.
Solution Approach 2:
The pulverulent excipients serve as intermediaries that facilitate product uptake and distribution. These solid particles help transfer the lipophilic compound mixture from the bar to the hair, improving abrasion and uptake properties without compromising the temperature stability provided by the carefully selected lipophilic compounds.
3Object-affected harmful factors
If water-free solid formulations are used to support sustainable product formats, then environmental sustainability is improved, but formulation complexity increases due to temperature stability requirements
Solution Approach 1:
The patent simplifies the formulation complexity by optimizing the melting point parameter of the lipophilic compounds to a moderate range (25-60°C). This eliminates the need for excessively high melting point materials while maintaining temperature stability, thereby reducing formulation complexity while preserving the water-free sustainable format.
Solution Approach 2:
The non-silicone lipophilic compounds with optimized melting points serve multiple functions simultaneously: they provide temperature stability for storage, enable ease of uptake during application, and maintain the water-free sustainable formulation format. This multi-functionality reduces overall formulation complexity despite the sustainability requirements.
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 achieves improved stability at higher temperatures while ensuring easy product uptake, enhancing user satisfaction and convenience.
Implementation Method 1
one or more non-silicone lipophilic compound(s) having a melting point above 25° C. under atmospheric pressure
Implementation Method 2
rubbing the solid composition as defined above in the palm of the hand, preferably the wet palm of the hand, and/or under running tap water, for a time period in the range of 5 s to 120 s and dissolving, removing solid parts and/or melting parts from it
Data Source
AI summary
The present invention is directed to a solid cosmetic composition for keratin fibers, preferably human keratin fibers, more preferably human hair, comprising: one or more non-silicone lipophilic compound(s) having a melting point above 25° C. under atmospheric pressure, one or more pulverulent excipient(s), one or more cationic and/or cationizable compound(s), wherein the concentration of pulverulent excipients is 1% by weight or more, calculated to the total weight of the composition, and wherein the total concentration of water is less than 10% by weight, preferably less than 5% by weight, more preferably less than 1% by weight, still more preferably less than 0.5% by weight, calculated to the total weight of the composition.