Protein Microcapsule Walls for Softer, More Sustainable Fabric Hand
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Solution Overview
Problem
Existing laundry compositions that use microcapsules to improve fabric hand often increase formulation complexity and cost, and may not meet environmental credentials, while conventional microcapsules with synthetic polymer walls do not effectively enhance fabric quality.
Innovation Solution
Using microcapsules with protein or polysaccharide polymers in the microcapsule wall to improve fabric hand, where the microcapsule wall comprises protein polymers, polysaccharide polymers, or combinations thereof, and includes crosslinking agents like polyisocyanates or ionic crosslinking to enhance softness and resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional microcapsules with synthetic polymer walls are used to improve fabric hand, then fabric hand improvement is achieved, but environmental credentials are compromised and formulation complexity increases
Solution Approach 1:
The patent changes the chemical composition parameter of the microcapsule wall from synthetic polymers to natural protein polymers (such as gelatin, casein, or whey protein). This parameter change maintains the functional ability to improve fabric hand while eliminating the environmental harm associated with synthetic polymers, as protein-based materials are biodegradable and environmentally friendly.
Solution Approach 2:
The patent employs composite material structures by combining protein polymers with crosslinking agents (such as polyisocyanates or ionic crosslinking agents) to create microcapsule walls that possess both the beneficial natural properties of proteins and the enhanced functional properties provided by crosslinking. This composite approach maintains environmental credentials while ensuring effective fabric hand improvement.
2Reliability
If ingredients are added to laundry composition to improve fabric hand, then fabric hand is improved, but formulation complexity and cost increase
Solution Approach 1:
The patent makes the microcapsule wall material universal by using protein polymers that can be crosslinked with multiple types of crosslinking agents (polyisocyanates, ionic crosslinking agents, or other crosslinking agents). This multi-functionality allows a single base material (protein polymer) to achieve various degrees of crosslinking and performance levels without requiring multiple different wall materials, thereby reducing formulation complexity while maintaining fabric hand improvement.
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 use of protein or polysaccharide-based microcapsules improves fabric hand, providing enhanced smoothness, compressibility, and elasticity, as measured by AATCC TM202-2012, while maintaining environmental sustainability.
Implementation Method 1
The microcapsule wall comprises protein polymers, polysaccharide polymers, or combinations thereof, and includes crosslinking agents like polyisocyanates or ionic crosslinking to enhance softness and resilience
Data Source
AI summary
Use of microcapsules in a laundry composition to improve the hand of a fabric, wherein the microcapsules have a microcapsule wall and the microcapsule wall comprises protein polymers, polysaccharide polymers, or combinations thereof.