Anhydrous Detergent Clay Stabilization
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Solution Overview
Problem
Current laundry detergents are unable to effectively stabilize enzymes and bleaches in aqueous environments, leading to instability and reduced stain removal capabilities, as they are incompatible and interact negatively with water-based systems.
Innovation Solution
A substantially anhydrous detergent composition is developed, comprising a liquid phase with surfactants and solvents, a dispersed solid phase with enzymes and bleaching agents, and a processed clay mixture treated with alkyl quaternary ammonium compounds, which maintains stability during long-term storage and minimizes phase separation and active oxygen loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a water-based detergent system is used, then enzymes and bleaches can be effectively delivered for stain removal, but the composition becomes unstable due to incompatibility and negative interactions between components in aqueous environments
Solution Approach 1:
The patent transforms the detergent system from aqueous to substantially anhydrous by changing the physical state parameter (water content). This parameter change stabilizes the composition by eliminating the aqueous environment that causes degradation of enzymes and bleaches, while still allowing these components to function when activated by water during use.
Solution Approach 2:
The patent applies preliminary action by pre-stabilizing the detergent composition in an anhydrous state during storage and manufacturing. The enzymes and bleaches are protected from degradation before use through this preliminary stabilization, and only become active when water is introduced during the washing process.
2Productivity
If enzymes and bleaches are incorporated into a water-based detergent, then stain removal effectiveness is improved, but phase separation and component degradation occur during storage
Solution Approach 1:
The patent changes the water content parameter from high (aqueous) to low (substantially anhydrous), which fundamentally alters the stability characteristics of the composition. This parameter change prevents phase separation and component degradation during storage while maintaining the productivity of stain removal components.
Solution Approach 2:
The patent extracts water from the detergent system, removing the medium that causes instability. By taking out the aqueous component, the enzymes and bleaches are isolated from the degradation environment, allowing stable storage while preserving their stain removal effectiveness for when water is reintroduced during use.
3Reliability
If a substantially anhydrous system is used to stabilize enzymes and bleaches, then composition stability is improved, but the system becomes more complex to formulate and process
Solution Approach 1:
The patent introduces clay particles as an intermediary substance that facilitates the formulation of stable anhydrous detergents. The clay acts as a mediator between the hydrophobic anhydrous environment and the hydrophilic enzyme and bleach components, enabling stable dispersion and preventing aggregation while simplifying the overall formulation process.
Solution Approach 2:
The patent creates a composite material system combining clay particles with enzymes and bleaches in an anhydrous matrix. This composite approach simplifies formulation by providing a stable, multi-component system where the clay matrix protects and disperses the sensitive ingredients, reducing formulation complexity compared to attempting to stabilize individual components separately.
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 remains stable for extended periods without phase separation and exhibits minimal active oxygen loss, ensuring effective stain removal and enzyme activity, even when stored at elevated temperatures.
Implementation Method 1
a dispersed solid phase and a processed clay mixture to stabilize the composition
Implementation Method 2
suspended percarbonate and/or carbonate salts and enzymes
Implementation Method 3
processed clay mixture pre-treated with alkyl quaternary ammonium compounds
Implementation Method 4
The substantially anhydrous system is beneficial because the sodium percarbonate and enzymes would be stable in the absence of water
Data Source
AI summary
An anhydrous composition comprising a liquid phase, a dispersed solid phase and a processed clay mixture. The composition has a minimum amount of water and is surprisingly stable during its long-term storage, with no phase separation and minimal activated oxygen loss.