Bio-based Laundry Composition with Microcapsules for Fragrance Stability
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Solution Overview
Problem
Current laundry care compositions face challenges in providing enhanced fragrance perception on fabrics while being environmentally friendly, as they often rely on synthetic ingredients and lack effective encapsulation methods using renewable and biodegradable materials.
Innovation Solution
A liquid laundry care composition comprising non-encapsulated fragrance ingredients, core-shell microcapsules, surfactants, polysaccharide suspending agents, and optional cationic deposition agents and electrolytes, where at least 60% of the ingredients are biodegradable and derived from renewable sources, enhancing fragrance deposition and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If synthetic ingredients are used to enhance fragrance perception, then fragrance effectiveness is improved, but environmental sustainability deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters by using bio-based and biodegradable ingredients instead of synthetic materials. The formulation includes bio-based surfactants, biodegradable polymers, and naturally-derived fragrance components, transforming the product from synthetic to sustainable while maintaining fragrance effectiveness through careful selection and combination of natural ingredients.
Solution Approach 2:
The patent employs composite material strategies by combining multiple bio-based components (surfactants, polymers, fragrance ingredients) into a synergistic formulation. This composite approach allows the use of renewable materials to achieve the same functional performance as synthetic ingredients, resolving the contradiction between effectiveness and sustainability.
2Object-affected harmful factors
If bio-based and biodegradable ingredients are used, then environmental sustainability is improved, but formulation performance and stability deteriorate
Solution Approach 1:
The patent uses biodegradable polymers that serve multiple functions: they act as encapsulation materials for fragrance delivery, provide suspension stability for the formulation, and ensure environmental biodegradability. This multi-functionality allows a single bio-based ingredient to meet both performance and sustainability requirements simultaneously.
Solution Approach 2:
The patent employs bio-based surfactants as intermediary substances that facilitate the interaction between hydrophobic fragrance oils and the aqueous formulation medium. These natural surfactants enable stable emulsion formation and improve fragrance release kinetics, bridging the performance gap between synthetic and bio-based ingredients.
3Reliability
If encapsulated fragrance components are used, then fragrance perception on dry fabrics is improved, but formulation complexity increases
Solution Approach 1:
The patent uses microcapsules with thin biodegradable polymer shells to encapsulate fragrance components. These flexible microcapsule structures provide controlled fragrance release upon mechanical stress (rubbing, wearing) while maintaining formulation simplicity through direct incorporation into the liquid composition without complex encapsulation equipment.
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 composition effectively enhances fragrance perception on fabrics by improving the deposition of both non-encapsulated and encapsulated fragrances, maintaining stability across a broad temperature range and providing a sustainable, eco-friendly alternative.
Implementation Method 1
at least one core-shell microcapsule, wherein the at least one core-shell microcapsule comprises a core containing at least one encapsulated fragrance ingredient and a shell surrounding the core
Implementation Method 2
a suspending agent comprising at least one polysaccharide
Implementation Method 3
at least one surfactant
Data Source
AI summary
The present invention relates to the field of laundry care, more particularly to a liquid laundry care composition, to a method for obtaining a liquid laundry care composition, and to the use of liquid laundry care compositions to provide an enhanced fragrance perception on fabrics.