Aromatic Sulfonic Acid–Cationic Polymer Hair Cosmetic for Manageability
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Solution Overview
Problem
Conventional hair cosmetics fail to provide long-lasting improvements in hair manageability and luster, particularly after chemical treatments like hair dyeing, and are not efficient for users with limited time.
Innovation Solution
A hair cosmetic formulation combining aromatic sulfonic acids with specific cationic polymers at a specific mass ratio, along with optional components like glycylglycine derivatives, to form an adhesive coating that enhances hair manageability and reduces swelling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If conventional hair cosmetics containing emulsion products or gel products are used, then temporary improvement in hair manageability and prevention of drying is achieved, but long-lasting improvement in hair luster and manageability is not obtained
Solution Approach 1:
The invention changes the chemical parameters of the hair cosmetic formulation by incorporating specific aromatic sulfonic acid compounds (with defined molecular weight ranges) and cationic polymers (with specific charge density ranges) in optimized concentration ratios. This parameter optimization enables the composition to form stable adhesive coatings that provide long-lasting hair manageability and luster improvement, resolving the contradiction between temporary and long-lasting effects
Solution Approach 2:
The invention uses a composite material system combining aromatic sulfonic acid compounds and cationic polymers in specific proportions. This composite formulation creates synergistic effects where the aromatic sulfonic acid provides adhesive properties and the cationic polymer provides conditioning effects, resulting in a durable coating that maintains hair manageability and luster for extended periods
2Reliability
If multiple hair treatment steps are performed to achieve good hair manageability, then hair condition improves, but time consumption increases
Solution Approach 1:
The invention merges multiple hair treatment functions into a single cosmetic composition that simultaneously provides adhesive coating, conditioning, and styling benefits. The formulation combines aromatic sulfonic acid compounds for adhesion with cationic polymers for conditioning, enabling one-step application to achieve comprehensive hair manageability improvement, thus reducing treatment time while maintaining high quality results
Solution Approach 2:
The hair cosmetic composition is designed with multi-functionality, serving as both a styling agent and a conditioning treatment. The aromatic sulfonic acid-cationic polymer system provides dual actions of forming adhesive coatings for hold and delivering conditioning effects for manageability, allowing the single product to replace multiple separate treatments
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 formulation provides sustained hair manageability and reduced swelling for an extended period, even after chemical treatments, with a single application, and is suitable for use with hair bleaching or dyeing agents.
Implementation Method 1
a cationic polymer having a cationic charge density of 4.5 meq/g or more
Implementation Method 2
form an adhesive coating that enhances hair manageability and reduces swelling
Data Source
AI summary
A hair cosmetic comprising the following components (A) and (B) at a mass ratio of component (B) to component (A), (B)/(A), of 0.7 or more and 5.0 or less: (A) an aromatic sulfonic acid having a molecular weight of 300 or less or a salt thereof; and (B) a cationic polymer having a cationic charge density of 4.5 meq/g or more.