Sequential Fabric Care Compositions for Synergistic Odor
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Solution Overview
Problem
Current fabric care products fail to achieve a synergistic odor benefit on fabrics, as they do not effectively combine two fabric care compositions to enhance perfume delivery beyond additive effects.
Innovation Solution
A method involving a first fabric care composition with an amine-based perfume delivery agent and a second composition chosen from Schiff base compounds or two-component systems, applied sequentially to fabrics, where the first composition is free or essentially free of the second perfume delivery agent and vice versa, to achieve a synergistic odor benefit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single fabric care composition is used with a perfume delivery agent, then odor delivery to fabrics is improved, but the odor benefit is limited and does not achieve synergistic enhancement
Solution Approach 1:
The perfume delivery system is segmented into two separate fabric care compositions. The first composition contains a first perfume delivery agent (e.g., amine-based compound) and the second composition contains a second perfume delivery agent (e.g., Schiff base compound or two-component system). This segmentation allows each composition to be optimized independently while achieving synergistic odor benefit when used sequentially, resolving the contradiction between improving odor quantity and maintaining system simplicity.
Solution Approach 2:
The patent merges the functions of two separate fabric care compositions into a coordinated system that achieves synergistic odor delivery. The first and second perfume delivery agents work together in sequence to deposit multiple perfume components on fabric, creating an enhanced odor benefit that exceeds the sum of individual compositions. This merging approach increases odor quantity while managing complexity through functional specialization.
2Quantity of substance
If two fabric care compositions are used sequentially with different perfume delivery agents, then synergistic odor benefit is achieved, but the complexity of the fabric care system increases
Solution Approach 1:
The system segments the perfume delivery function across two independent compositions, each with specific agents (first FPDA and second SPDA). This segmentation enables specialized optimization of each composition while achieving enhanced overall performance through sequential application, managing the complexity increase by dividing functional responsibilities.
Solution Approach 2:
The patent introduces intermediary mechanisms that facilitate the synergistic interaction between the two compositions. The first composition prepares the fabric surface or chemical environment, and the second composition builds upon this preparation to achieve enhanced perfume deposition. These intermediary interactions enable the synergistic effect while maintaining the independence of each composition.
3Ease of operation
If fabric care compositions are used separately without sequential treatment, then the fabric care process is simple, but the odor benefit is not maximized
Solution Approach 1:
The first fabric care composition performs preliminary action by depositing its perfume delivery agent on the fabric before the second composition is applied. This preliminary deposition creates a favorable chemical environment or surface condition that enhances the subsequent deposition and performance of the second composition, thereby maximizing overall odor benefit while maintaining a simple sequential application process.
Solution Approach 2:
The patent maintains continuity of useful action through sequential application of the two fabric care compositions. The first composition is applied, followed by the second composition without interruption to the fabric treatment process. This continuous action ensures that both perfume delivery agents have opportunity to deposit their components synergistically, maximizing odor benefit while keeping the process straightforward and integrated.
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 sequential use of these compositions results in an analytically measurable increase in perfume components deposited on fabrics, providing a more intense, fresh, and long-lasting odor benefit compared to using the compositions separately.
Implementation Method 1
the FPDA comprises an amine-based compound having a molecular weight of at least 100 Daltons, wherein at least 10% of the amino groups in the amine-based compound are primary amino groups; and wherein the SPDA is chosen from (i) a Schiff base compound comprising an odor detection threshold above about at least 1 part per trillion
Data Source
AI summary
The use of a first fabric care composition comprising a first perfume delivery agent to treat a fabric and subsequently and independently treating the fabric using a second fabric care composition comprising a second perfume delivery agent provides a synergistic odor benefit on the fabric.