Acylhydrazones in Liquid Detergents for Bleachable Stain Removal
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Solution Overview
Problem
Conventional liquid detergents without peroxygen-based bleaching systems lack effective washing power for bleachable and enzyme-sensitive stains, leading to suboptimal cleaning performance.
Innovation Solution
Incorporation of acylhydrazones of specific formulas into liquid detergents containing surfactants and enzymes, which improve dirt removal performance without the need for bleaching agents, by suspending acylhydrazones in the form of powders or granules with inert carriers, creating a stable suspension that enhances cleaning efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional liquid detergents are formulated without peroxygen-based bleaching systems, then the product is milder and safer for fabrics, but the washing power against bleachable and enzyme-sensitive stains is insufficient
Solution Approach 1:
The patent combines acylhydrazone compounds with surfactants and enzymes to create a composite cleaning system. The acylhydrazone (Formula I) acts as a novel active ingredient that works synergistically with surfactants and enzymes to remove bleachable and enzyme-sensitive stains without requiring harsh bleaching agents, thus maintaining fabric safety while improving washing power.
Solution Approach 2:
The patent introduces a new chemical parameter - acylhydrazone compounds with specific structural features (Formula I) - to change the cleaning mechanism. This new parameter enables effective stain removal through a different chemical pathway that does not rely on peroxide-based bleaching, thereby achieving both mildness and effectiveness.
2Productivity
If acylhydrazones are incorporated into liquid detergent formulations, then the cleaning performance against bleachable stains is significantly improved, but the formulation complexity increases
Solution Approach 1:
The acylhydrazone compound (Formula I) serves multiple functions simultaneously: it acts as a stain remover for bleachable stains, works synergistically with enzymes for enzyme-sensitive stains, and maintains compatibility with standard surfactant systems. This multi-functionality reduces the need for separate specialized ingredients.
Solution Approach 2:
The acylhydrazone acts as an intermediary substance that bridges the gap between mild cleaning systems and effective stain removal. It mediates the interaction between surfactants and stains, enhancing cleaning performance without requiring the aggressive chemistry of traditional bleaching agents.
3Ease of manufacture
If solid particles are suspended in transparent or translucent liquid phase, then aesthetic appeal is improved through visible speckles, but sedimentation occurs leading to unstable suspension and uneven dosing
Solution Approach 1:
The patent modifies the physical parameters of the acylhydrazone particles, specifically controlling their size range (0.1-5 mm) and using inert carriers to create a stable suspension. These parameter changes enable the particles to remain suspended without rapid sedimentation while maintaining visible speckles for aesthetic appeal.
Solution Approach 2:
The patent uses inert carriers to support the acylhydrazone particles, creating a system where the active ingredient is delivered effectively without requiring long-term stability of the particle suspension itself. The focus is on functional performance rather than permanent aesthetic appearance.
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 use of acylhydrazones significantly improves the removal of bleachable and enzyme-sensitive stains, achieving cleaning performance comparable to systems using bleaching agents, while maintaining a bleach-free formulation.
Implementation Method 1
The use of acylhydrazones significantly improves the removal of bleachable and enzyme-sensitive stains
Implementation Method 2
suspending acylhydrazones in the form of powders or granules with inert carriers, creating a stable suspension
Data Source
AI summary
The aim of the invention is to improve the dirt cleaning performance of liquid detergents and cleaning agents containing surfactants and enzymes. This aim is achieved essentially by incorporating specific acyl hydrazones.