Polyacrylate Encapsulated Benefit Agent Deposition
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Solution Overview
Problem
Existing liquid fabric softener compositions often fail to uniformly release encapsulated benefit agents across different types of fabric materials, limiting their effectiveness and requiring consumers to use specific fabric compositions for each type of fabric.
Innovation Solution
The use of liquid fabric softener compositions containing quaternary ammonium ester fabric softening active, cellulose fibers, and polyacrylate-based benefit agent capsules, which provide consistent release of encapsulated benefits across various fabric types, including cotton and polyester.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If deposition aids selective for specific fabric material are used, then deposition and release of encapsulated benefit agent is improved for that specific fabric type, but deposition and release of encapsulated benefit agent is reduced for other fabric types
Solution Approach 1:
The patent employs a cationic polymer deposition aid that can deposit and release encapsulated benefit agents on multiple fabric types (cotton, polyester, and blends) rather than being selective for a single fabric type. This universal deposition aid achieves consistent performance across different fabric materials, resolving the contradiction between reliability for specific fabrics and adaptability to various fabrics.
2Reliability
If encapsulated benefit agents are used, then benefit delivery to fabric is improved, but much of the encapsulated benefit agent is not deposited or is rinsed away before use
Solution Approach 1:
The patent introduces a cationic polymer deposition aid as an intermediary substance that facilitates the deposition of encapsulated benefit agents onto fabric and prevents premature rinsing away. This deposition aid acts as a mediator between the encapsulated benefit agent and the fabric, ensuring reliable benefit delivery while minimizing loss of the expensive benefit agent.
3Reliability
If different fabric compositions are used for different fabric types, then improved benefit is achieved for each fabric type, but the laundry process becomes more complex
Solution Approach 1:
The patent develops a universal fabric softener composition containing a cationic polymer deposition aid that effectively treats multiple fabric types (cotton, polyester, and blends) with a single formulation. This eliminates the need for consumers to select different fabric compositions for different fabric types, thereby maintaining treatment effectiveness while simplifying the laundry process.
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
This solution ensures uniform deposition and release of benefit agents on different fabric materials, enhancing fabric softness and freshness without the need for multiple fabric compositions, thereby simplifying the laundry process.
Implementation Method 1
cellulose fibers...provide improved deposition and release of the encapsulated benefit agent
Implementation Method 2
benefit agent capsules comprising a core and a shell encapsulating said core, wherein said shell comprises a polyacrylate polymer
Implementation Method 3
quaternary ammonium ester fabric softening active
Data Source
AI summary
The present invention relates to liquid fabric softener compositions comprising a quaternary ammonium ester softening active, cellulose fibers, and benefit agent capsules comprising a core and a shell encapsulating said core, wherein said shell comprises polyacrylate polymer, as well as methods of treating fabric and using same. Such liquid fabric softener compositions provide similar deposition of different types of fabric material.