Disinfectant Microcapsule Stability via Emulsifier Mediation
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Solution Overview
Problem
Existing disinfectant compositions for professional cleaning fail to retain olfactory properties over time and struggle to maintain stability and homogeneity when incorporating both disinfectant and microcapsule-based fragrance systems, especially when dispersed over large areas.
Innovation Solution
A composition comprising 3-5% cationic disinfectant agent, 0.5-1.5% emulsifying agent, 3.5-6.5% nonionic surfactant, 1-3% perfume, and 1.5-3.5% microcapsules, with a biocidal agent like benzalkonium chloride and ethoxylated castor oil, ensures controlled perfume release and stability, maintaining bactericidal and fungicidal activity while being easy to dilute and spread.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If disinfectant agents and microcapsules are incorporated into the composition, then bactericidal and fungicidal activity is achieved, but stability and homogeneity of the solution deteriorate
Solution Approach 1:
A specific emulsifying agent (ethoxylated castor oil) acts as an intermediary substance that mediates between the disinfectant agents and microcapsules, enabling their coexistence in a stable, homogeneous single-phase solution without separation or precipitation
Solution Approach 2:
The patent optimizes specific parameter ranges including pH (3.0-4.0), temperature (15-25°C), and concentration ratios of components to achieve a critical balance where the disinfectant maintains its biocidal activity while the microcapsules remain stably dispersed without aggregation
2Duration of action of stationary object
If microcapsules are used for fragrance release, then olfactory properties are retained over time, but compatibility and dispersion stability deteriorate
Solution Approach 1:
The emulsifying agent serves as a compatibility bridge between the hydrophobic microcapsule material and the aqueous disinfectant medium, enabling long-term fragrance release while maintaining system compatibility and preventing microcapsule aggregation or premature rupture
Solution Approach 2:
The composition creates a composite system where microcapsules containing fragrance are integrated with disinfectant agents, surfactants, and emulsifiers in specific ratios, forming a unified stable formulation that delivers both prolonged olfactory properties and effective dispersion
3Area of stationary object
If the composition is formulated for large-area dispersion, then coverage area is increased, but solution stability and homogeneity deteriorate
Solution Approach 1:
The emulsifying agent performs multiple functions simultaneously: it stabilizes the microcapsule dispersion, maintains solution homogeneity, prevents aggregation during storage and application, and ensures uniform distribution over large surfaces, making the composition universally applicable across different treatment areas
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 achieves a stable, homogeneous, and effective disinfectant solution with sustained fragrance release, maintaining bactericidal and fungicidal properties and ensuring compatibility with large-scale use.
Implementation Method 1
controlled release of the perfume from the microcapsules
Implementation Method 2
The biocidal agent gives said composition a bactericidal and fungicidal activity according to the criteria of standards NF EN 1275 and NF EN 1276
Implementation Method 3
0.5 to 1.5% of an emulsifying agent; 3.5 to 6.5% of a nonionic surfactant
Implementation Method 4
3.5 to 6.5% of a nonionic surfactant
Data Source
AI summary
Composition for surface cleaning of buildings, comprising the following ingredients expressed as weight percentages in relation to the total mass of said composition: 3 to 5% of a cationic disinfectant; 0.5 to 1.5% of an emulsifying agent; 3.5 to 6.5% of a non-ionic surfactant; 1 to 3% of a perfume; and 1.5 to 3.5% of microcapsules containing a perfume.