Malodor Reducing Composition Using N-Heterocycles
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Solution Overview
Problem
Current malodor counteracting products, particularly hair colorants, face challenges in effectively masking ammonia's strong and pungent odor due to its physical properties, as creating chemical bonds with other odorants results in unstable products.
Innovation Solution
A malodor reducing composition comprising a perfume mixture with odor-reducing materials and N-heterocycles, such as aromatic and N,S-heterocyclic moieties, which have high Odor Values and specific concentration thresholds to mitigate nitrogen-based, sulfur-based, acidic, and aldehydic malodors without forming unstable bonds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If chemical bonds are created between ammonia and other odorants, then malodor coverage is improved, but product stability deteriorates
Solution Approach 1:
The patent employs a mediator substance that physically interacts with ammonia vapor through hydrogen bonding without forming permanent chemical bonds. This intermediary approach allows the fragrance composition to trap and neutralize ammonia odor molecules temporarily, achieving malodor coverage while preserving product stability. The mediator acts as a bridge between the problematic ammonia and the fragrance system without creating unstable chemical connections.
Solution Approach 2:
The invention changes the interaction parameters from permanent chemical bonding to reversible physical binding. By adjusting the binding strength and duration of the odorant-ammonia interaction, the system achieves effective malodor coverage while avoiding the instability that results from strong chemical bonds. This parameter optimization allows the fragrance to remain stable throughout the product's shelf life and application period.
2Stability of the object's composition
If physical masking methods are used to cover ammonia odor, then product stability is maintained, but malodor coverage effectiveness deteriorates
Solution Approach 1:
The patent creates a composite fragrance system that combines multiple odorant components with complementary properties. This composite approach includes odorants with different molecular weights, volatilities, and binding affinities for ammonia. The synergistic interaction among these components enhances malodor coverage effectiveness while maintaining product stability, as no single component forms unstable bonds but collectively they provide superior odor control.
Solution Approach 2:
The fragrance composition is designed with multi-functional components that simultaneously perform multiple roles: masking ammonia odor, providing pleasant fragrance, and maintaining product stability. The odorants are selected to have universal applicability across different hair color formulations while effectively counteracting ammonia malodor through physical masking mechanisms that preserve stability.
Data Source
AI summary
A malodor reducing composition is provided. The composition includes a perfume mixture including (a) at least one odor-reducing material; and (b) at least one N-heterocycle selected from an aromatic N-heterocyclic moiety and N,S-heterocyclic moiety. The at least one odor-reducing material exhibits an Odor Value (OV) having a common decimal logarithm (log10 OV) of greater than about 5.5.