Solid Fragrance Composition with Segmented Release
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Solution Overview
Problem
Existing laundry and household cleaning products lack flexibility in fragrance options and levels, as consumers can only choose from predetermined amounts, and existing formulations are not environmentally friendly or compatible with all wash cycles.
Innovation Solution
A solid composition comprising polyethylene glycol, alkyl polyalkoxylate, free fragrance, and encapsulated fragrance, along with an alkaline metal or earth metal salt, which can be formulated to adjust solubility and agglomeration characteristics, allowing for customizable fragrance release and compatibility with various wash habits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a predetermined amount of specific fragrance is used in laundry detergent powders and solid fabric conditioners, then the product has a stable formulation, but the fragrance level cannot be changed without adding more or less product
Solution Approach 1:
The fragrance system is segmented into multiple fragrance components (first fragrance, second fragrance, third fragrance) with different properties and release characteristics. This allows the product to provide multiple fragrance levels and types without requiring multiple separate products, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The invention uses a composite fragrance system combining free fragrance, encapsulated fragrance, and fragrance bound to inert material. This composite approach enables flexible fragrance level adjustment while maintaining a single stable product formulation, as the different fragrance forms release at different rates and under different conditions.
2Quantity of substance
If high proportions of fragrance are used in solid fragrance concentrates, then the fragrance intensity is high, but the product lacks encapsulated fragrance for controlled release
Solution Approach 1:
The invention changes the physical state and release parameters of fragrance by using three different forms: free fragrance for immediate release, encapsulated fragrance for controlled delayed release, and fragrance bound to inert material for prolonged release. This multi-parameter approach allows high fragrance concentration while achieving extended duration of action through different release mechanisms.
3Ease of manufacture
If polyethylene glycol is used as a carrier for fragrance, then the fragrance can be delivered in solid form, but the product may not be environmentally friendly or compatible with all wash cycles
Solution Approach 1:
The invention assigns different functional roles to different components based on their local qualities: polyethylene glycol provides solid form and solubility control, inert material provides fragrance binding and environmental compatibility, and encapsulated materials provide controlled release. This division of functional qualities allows the product to achieve solid form delivery while maintaining environmental compatibility through selective component placement.
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 provides controlled fragrance release, improved solubility, and agglomeration control, making it suitable for different wash cycles and markets, while being environmentally friendly and compatible with laundry detergents and fabric softeners.
Implementation Method 1
encapsulated fragrance contained within a microcapsule
Implementation Method 2
from 30 to 65% by weight of polyethylene glycol, from 0 to 40% by weight of a C8-C22-alkyl polyalkoxylate
Data Source
AI summary
A solid composition contains (a) from 30 to 65% by weight of a polyethylene glycol, (b) from 0 to 40% by weight of a C8-C22-alkyl polyalkoxylate including at least 40 alkoxylate units, (c) from 0.5 to 15% by weight of free fragrance, (d) from 0.1 to 15% by weight of encapsulated fragrance, and (e) from 1 to 35% by weight of an alkaline metal salt, alkaline earth metal salt or salt of an inorganic or C1-C6-alkyl organic acid, or mixture thereof.