Monosodium Citrate Foaming Cleaner for Stable Solid Flowability
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Solution Overview
Problem
Existing foam-forming cleaning compositions in solid form, particularly powders and granules, suffer from storage stability issues due to moisture and heat, leading to loss of flowability and compromised application properties.
Innovation Solution
A cleaning composition comprising monosodium citrate, hydrogen carbonate or carbonate, and fatty alcohol sulfate, without added protonated carboxylic or hydroxycarboxylic acids, ensures good storage stability and flowability, while maintaining effective foam formation and cleaning performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional foam-forming cleaning compositions (containing citric acid and carbonates) are used, then good foaming capacity and cleaning performance are achieved, but storage stability deteriorates upon contact with moisture or heat, causing clumping and loss of flowability
Solution Approach 1:
The patent changes the chemical form of the acid component from citric acid to monosodium citrate. This parameter change fundamentally alters the hygroscopic properties of the composition, preventing clumping while maintaining foam-forming capability through the carbonate reaction.
Solution Approach 2:
The patent converts the typically harmful effect of moisture (which causes clumping) into a beneficial feature by using monosodium citrate, which is not hygroscopic. This allows moisture presence without compromising storage stability or flowability.
2Reliability
If conventional foam-forming cleaning compositions are used, then effective cleaning performance is achieved, but the product loses flowability when stored in packaging over time
Solution Approach 1:
The patent changes the acid component from hygroscopic citric acid to non-hygroscopic monosodium citrate, fundamentally altering the physical behavior during storage while preserving the chemical reactivity needed for cleaning performance.
3Reliability
If citric acid is used as the acid component, then good foam formation occurs, but the composition becomes hygroscopic and clumps during storage
Solution Approach 1:
The patent changes the acid component from citric acid to monosodium citrate, fundamentally altering the hygroscopic properties while preserving foam-forming capability through the carbonate reaction mechanism.
Solution Approach 2:
The patent eliminates the harmful hygroscopic effect by using monosodium citrate instead of citric acid, converting a previously problematic property into a neutral or beneficial characteristic for storage stability.
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 maintains high foaming capacity, stability, and cleaning efficacy even under moist or heated conditions, with solid formulations retaining flowability and avoiding clumping, suitable for safe use by untrained users.
Implementation Method 1
a combination of acids, such as citric acid, with carbonates, which react with water to form foam
Implementation Method 2
To promote foam formation, such cleaners often contain foaming surfactants
Implementation Method 3
They serve, for example, as cleaners for hard surfaces such as glass, ceramics, tiles, stone, steel, stainless steel, aluminum, plastics, etc.
Data Source
AI summary
The present invention relates to a foam-forming cleaning composition in solid form, in particular a toilet cleaner.