Hair Care Composition Using Malodor Reduction Materials Without Scent Masking
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Solution Overview
Problem
Existing malodor control technologies in unscented or lightly scented hair care products often fail to effectively reduce malodors without masking them with stronger scents, leading to consumer doubt and compliance issues, while sulfur-based formulations are pungent and deter consumers due to residual odors.
Innovation Solution
A hair care composition comprising 0.1% to 2% perfume with malodor reduction materials like Decanal, undec-10-enal, and sulfur at 0.01% to 10%, along with surfactants, that block malodors without altering the scent, allowing perfume to remain intact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If malodor control technologies are used to reduce malodors, then malodor reduction is achieved, but the scent of the perfume is interfered with or masked
Solution Approach 1:
The patent introduces a specific intermediary substance (2-acetylfuran) that acts as a mediator between the malodor control function and the perfume scent. This intermediary selectively binds to malodor molecules without interfering with perfume molecules, allowing malodor reduction while preserving the desired fragrance profile
Solution Approach 2:
The patent applies local quality by creating selective interaction zones within the perfume composition. The 2-acetylfuran component specifically targets malodor molecules at certain locations (receptor binding sites) while leaving perfume molecules unaffected in other zones, achieving spatial differentiation of function
2Reliability
If sulfur-based formulations are used for dandruff control, then anti-fungal effectiveness is improved, but pungent residual odors are generated
Solution Approach 1:
The patent converts the harmful pungent odor property of sulfur into a beneficial masking effect. By carefully controlling sulfur content and combining it with 2-acetylfuran, the previously harmful odor becomes a controlled aromatic component that contributes to an acceptable overall scent profile while maintaining dandruff control efficacy
Solution Approach 2:
The patent creates a composite formulation combining sulfur (for anti-fungal activity), 2-acetylfuran (for odor modulation), and perfume components (for desired fragrance). This composite material achieves multiple functions simultaneously: dandruff control, malodor reduction, and acceptable scent profile
3Object-affected harmful factors
If scented perfumes are added to mask malodors, then malodor coverage is improved, but the natural or discreet character of unscented products is lost
Solution Approach 1:
The patent changes the parameter of scent intensity from high (traditional perfume masking) to low (subtle 2-acetylfuran modification). By using 2-acetylfuran at low concentrations, the malodor coverage is achieved with minimal impact on the natural character of unscented or lightly scented products
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
Effectively reduces malodors without altering the perfume scent, providing consistent odor control and improving consumer compliance by using malodor reduction materials that do not interfere with fragrance.
Implementation Method 1
in addition to blocking a malodor's access to a receptor cell
Implementation Method 2
from 0.1% to 40% of a surfactant
Data Source
AI summary
The present invention discloses a hair care composition comprising, based on total composition weight, a) a sum total of from about 0.1% to about 2% of a perfume with one or more malodor reduction materials having a wt% from about 0.0001% to about 2% of one or more of said malodor reduction materials; b) from about 0.01% to about 10% of a scalp active material selected from the group consisting of sulfur and mixtures thereof; c) from about 0.1% to about 40% of a surfactant.