Carboxylated Cellulose Ether Polyglucose Hair Fixatives
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Solution Overview
Problem
Conventional hair fixative polymers used in personal care applications are often made from synthetic materials, which are not sustainable and can cause skin/scalp irritation, hair loss, and allergic reactions due to sulfate-containing ingredients, while also being less environmentally friendly.
Innovation Solution
Development of carboxylated cellulose ether based polyglucose polymers that are soluble in alcohol-based solvent systems and compatible with propellants, providing equal or better hair styling performance without using sulfate-containing materials, derived from renewable sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional synthetic polymers are used for hair fixatives, then manufacturing cost is low and performance is acceptable, but they cause skin/scalp irritation, hair loss, and allergic reactions due to sulfate-containing ingredients
Solution Approach 1:
The invention extracts and removes sulfate-containing harmful ingredients from the polymer formulation while retaining the essential hair fixative functionality. This is achieved by using alternative polymer chemistry that does not require sulfate modification, thereby eliminating the harmful effects on skin and scalp while maintaining product performance
Solution Approach 2:
The invention changes the chemical parameters of the polymer by using carboxylated cellulose ether based polyglucose polymers instead of conventional synthetic polymers. This parameter change eliminates sulfate-containing ingredients while maintaining solubility in alcohol-based systems and compatibility with propellants, thereby resolving the contradiction between safety and manufacturability
2Reliability
If conventional synthetic polymers are used for hair fixatives, then production is inexpensive, but they are not sustainable as they are not made from renewable resources
Solution Approach 1:
The invention changes the material source parameter from non-renewable synthetic resources to renewable cellulose-based resources. The carboxylated cellulose ether based polyglucose polymers are derived from sustainable sources while maintaining the required performance characteristics and solubility properties, thereby achieving sustainability without prohibitively increasing production costs
3Reliability
If cellulose-based polymers are used to replace synthetic polymers, then sustainability is improved, but solubility in alcohol-based solvent systems must be maintained
Solution Approach 1:
The invention applies local quality modification by specifically carboxylating the cellulose ether based polyglucose polymer at strategic locations along the polymer chain. This localized chemical modification enhances solubility in alcohol-based solvent systems while maintaining the overall polymer structure and functionality, thereby achieving the required solubility without excessive synthesis complexity
Solution Approach 2:
The invention uses carboxylation as an intermediary chemical modification step that bridges the gap between natural cellulose and the required alcohol-soluble polymer. The carboxyl groups act as intermediaries that improve solubility in alcohol-based systems while the polymer maintains its renewable origin and hair fixative functionality
4Object-affected harmful factors
If sulfate-containing polymers are used for hair fixatives, then hair styling performance is achieved, but they lead to hair loss and hair thinning
Solution Approach 1:
The invention extracts and removes sulfate-containing ingredients that cause hair loss and thinning while preserving the essential hair styling performance. The carboxylated cellulose ether based polyglucose polymers provide the necessary hold and styling capabilities without the harmful sulfate components, thereby eliminating hair damage while maintaining product efficacy
Solution Approach 2:
The invention uses composite material chemistry by combining cellulose ether, polyglucose, and carboxyl functional groups to create a new polymer structure. This composite approach provides hair styling performance comparable to or better than conventional polymers while eliminating the harmful sulfate-containing ingredients that cause hair loss and thinning
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 carboxylated cellulose ether based polyglucose polymers offer sustainable, effective hair styling performance with improved compatibility in alcohol-based systems and propellants, reducing the risk of irritation and allergic reactions, and maintaining curl retention even in high humidity conditions.
Implementation Method 1
the polyglucose polymer is soluble in the alcohol based solvent system
Data Source
AI summary
A hair fixative composition includes at least one carboxylated cellulose ether based polyglucose polymer, an alcohol based solvent system, and a cosmetically acceptable additive, wherein the polyglucose polymer is soluble in the alcohol based solvent system. The polyglucose polymer is obtained by reacting at least one cellulose ether with at least one anhydride.