Outdoor Cleaning Concentrate pH Optimization
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Solution Overview
Problem
Existing outdoor cleaning compositions for removing mold and mildew stains from outdoor surfaces often have high pH levels, which can be corrosive to users and surfaces, require substantial scrubbing or high-pressure systems, and are not environmentally friendly, necessitating a safer and more environmentally conscious solution.
Innovation Solution
A concentrate composition comprising a surfactant like caprylyl/decyl glucoside, a fungicide such as potassium bicarbonate, a disinfectant like potassium carbonate, and chelating agents like sodium gluconate and a salt of methyl glycine diacetic acid, formulated to have a lower pH range of 9.4 to 9.8, which can be diluted for effective cleaning with a garden hose, reducing corrosiveness and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high pH solutions (pH 10.0 and higher) are used to remove mold and mildew stains, then stain removal effectiveness is improved, but corrosiveness to skin and surfaces increases
Solution Approach 1:
The patent changes the pH parameter from traditional high levels (10.0 and higher) to a lower range (8.0-10.0), specifically formulating compositions with pH 8.0-9.5 that maintain effective mold and mildew removal while reducing corrosiveness to skin and surfaces. This parameter optimization resolves the contradiction between effectiveness and safety.
Solution Approach 2:
The patent employs composite formulations combining multiple surfactants (ionic and nonionic), chelating agents, and biocides working synergistically at lower pH levels. This composite approach achieves high stain removal effectiveness without requiring harsh high pH conditions, thereby reducing corrosiveness while maintaining reliability.
2Reliability
If traditional outdoor cleaning compositions are formulated for effective mold and mildew removal, then cleaning performance is improved, but environmental friendliness deteriorates
Solution Approach 1:
The patent modifies formulation parameters to achieve effective mold and mildew removal at lower pH (8.0-10.0) compared to traditional high pH compositions. This parameter change reduces environmental harm while maintaining cleaning performance, aligning with green chemistry principles and environmental regulations.
Solution Approach 2:
The patent converts the traditionally harmful high pH characteristic into a benefit by demonstrating that lower pH formulations can achieve equal or superior cleaning performance while being environmentally friendly. The synergistic combination of surfactants and biocides at moderate pH levels transforms the approach from harmful to beneficial for environmental sustainability.
3Reliability
If high pressure spraying systems or substantial scrubbing are used for outdoor cleaning, then mold and mildew stain removal is improved, but time consumption and system complexity increase
Solution Approach 1:
The patent replaces mechanical cleaning systems (high-pressure sprayers and scrubbing tools) with a chemically optimized composition that delivers effective mold and mildew removal through enhanced surfactant-bocide synergy at lower pH. This substitution eliminates complex equipment requirements while maintaining stain removal effectiveness.
Solution Approach 2:
The patent changes the chemical parameters of the cleaning composition to achieve effective stain removal without requiring high mechanical energy input. The optimized pH range (8.0-10.0) combined with synergistic surfactant-bocide formulations enables effective cleaning through chemical action alone, eliminating the need for complex high-pressure or mechanical systems.
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 removes dirt and mold/mildew stains while being safer for users and surfaces, meeting environmental standards, and can be conveniently applied to various outdoor surfaces using a regular garden hose, with improved stain removal performance compared to traditional high-pH solutions.
Implementation Method 1
a surfactant selected from the group consisting of alkyl glucosides, alkyl carboxylates, alkyl polyoxyethylenes, alkyl polysaccharides, alkylamine ethoxylates, amphoterics, amine oxides, polyalkylene glycol, sarcosines, and sarcosinates
Implementation Method 2
a chelating agent
Implementation Method 3
a fungicide, a chelating agent, and a disinfectant comprising potassium carbonate
Implementation Method 4
a disinfectant comprising potassium carbonate
Data Source
AI summary
An outdoor cleaning concentrate composition having improved dirt and stain cleaning properties on outdoor surfaces, that is less corrosive and capable of being used with a water spraying system; and that is environmentally friendly. The outdoor cleaning concentrate composition includes the following components: a surfactant selected from the group consisting of alkyl glucosides, alkyl carboxylates, alkyl polyoxyethylenes, alkyl polysaccharides, alkylamine ethoxylates, amphoterics, amine oxides, polyalkylene glycol, sarcosines and sarcosinates; a fungicide; a chelating agent; a disinfectant; and a specific pH range. The surfactant is preferably an alkyl glucoside; more preferably, caprylyl/decyl glucoside. The fungicide is preferably potassium bicarbonate, while the disinfectant is preferably potassium carbonate.