Microemulsified Bleach Precursor for Stable Liquid Agents
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Solution Overview
Problem
Liquid washing agents struggle to incorporate stable bleaching systems, as bleach activators are prone to hydrolytic instability, and oxidative bleaching agents can destabilize other ingredients like dyes, fragrances, or enzymes.
Innovation Solution
Incorporating a hydrophobic precursor compound in microemulsified form that can release peroxycarboxylic acid or its salt upon UV radiation, allowing for targeted energy input to activate the bleaching agent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a peroxidic bleaching agent and bleach activator are incorporated into liquid washing agents, then effective bleaching performance is achieved, but the stability of the bleach activator against hydrolytic attack cannot be sufficiently ensured
Solution Approach 1:
The patent extracts the unstable bleach activator component from the liquid washing agent formulation. Instead of incorporating the actual bleach activator that would hydrolyze, the invention uses a protective layer containing the bleach activator that remains intact during storage and only releases it under washing conditions, thereby achieving both stability during storage and effectiveness during use.
Solution Approach 2:
The patent applies preliminary protective action by enclosing the bleach activator in a protective layer before the washing process begins. This protective layer prevents hydrolytic attack during storage and transport, and only breaks down under the specific conditions of washing (water concentration differences), thereby preventing the harmful hydrolysis in advance while maintaining the desired functionality.
2Reliability
If oxidative bleaching agents are incorporated into liquid washing agents, then effective bleaching is achieved, but the stability of other washing and cleaning agent ingredients such as dyes, fragrances or enzymes is adversely affected
Solution Approach 1:
The patent segments the washing agent into distinct compartments: a liquid phase containing the oxidative bleaching agent and a protective layer containing other ingredients like dyes, fragrances, or enzymes. This segmentation prevents direct contact between the oxidative bleaching agent and sensitive ingredients during storage, thereby maintaining their stability while allowing both components to function effectively during the washing process.
Solution Approach 2:
The protective layer acts as an intermediary barrier between the oxidative bleaching agent and sensitive ingredients such as dyes, fragrances, and enzymes. This intermediary structure prevents direct harmful interactions during storage and transport, while allowing the system to function as a complete washing agent when the protective layer breaks down under washing conditions.
3Stability of the object's composition
If multi-compartment packaging is used to separate incompatible ingredients, then stability during storage is improved, but device complexity increases
Solution Approach 1:
The patent uses a flexible protective layer (thin film structure) to separate incompatible ingredients during storage. This protective layer is designed to break down under washing conditions, providing the necessary separation during storage while eliminating the need for complex multi-compartment packaging structures. The thin film approach simplifies the overall device complexity compared to rigid multi-chamber systems.
4Stability of the object's composition
If protective layers are used to wrap problematic ingredients, then stability during storage is improved, but the agent requires additional structural components
Solution Approach 1:
The patent employs composite material structures where the protective layer is integrated with the overall washing agent formulation. The protective layer is designed as a composite structure that provides protection during storage but breaks down under washing conditions, combining the functions of protection and delivery in a single integrated structure rather than adding separate protective components.
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
This method ensures the stability of enzymes during storage and provides effective bleaching performance without the need for separate compartments or protective layers, while maintaining compatibility with other washing agent ingredients.
Implementation Method 1
from which a peroxycarboxylic acid or the salt thereof can be released by UV radiation
Implementation Method 2
uses targeted energy input in order to produce a reactive active ingredient from an ingredient that is stable when the liquid agent is stored
Implementation Method 3
a hydrophobic precursor compound in microemulsified form
Data Source
AI summary
The present application is directed to water and surfactant-containing liquid washing or cleaning agents containing a hydrophobic precursor compound in microemulsified form, from which a peroxycarboxylic acid or the salt thereof can be released by UV radiation. Methods for washing textiles and cleaning hard surfaces using such precursor compounds are also included.