Foamable Cleaning Composition With Hydrogen Peroxide For Stain Removal
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Solution Overview
Problem
Existing cleaning systems struggle to effectively remove heavy stains from fabrics as detergent ingredients become diluted during washing, failing to concentrate at the stain site, necessitating separate stain treatments.
Innovation Solution
A foamable liquid cleaning composition comprising 1 to 20 wt.% alkoxylated C 8-18 alkyl ether sulfate surfactant, 0.1 to 3 wt.% amphoteric surfactant, and 2 to 12 wt.% hydrogen peroxide, applied as a foam using a spraying device, which maintains cleaning performance with lower dosages and targeted application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If detergent is applied in wash water, then cleaning coverage is broad, but detergent ingredients are diluted and not concentrated at the stain
Solution Approach 1:
The patent applies foam locally directly to the stain area rather than distributing detergent throughout the entire fabric in wash water. The foam structure concentrates cleaning agents, hydrogen peroxide, and oxygen at the specific stained location, creating high local concentration where needed while avoiding dilution across the whole garment.
Solution Approach 2:
The patent uses foam as an intermediary carrier to deliver cleaning agents to the stain. The foam structure acts as a medium that maintains high concentration of surfactants, hydrogen peroxide, and dissolved oxygen while providing controlled delivery to the target area, solving the dilution problem of conventional liquid detergent application.
2Reliability
If separate stain treatment is applied, then heavy stains are removed effectively, but the process becomes more complex and time-consuming
Solution Approach 1:
The patent combines multiple stain treatment functions into a single foam composition. The foam integrates surfactants for general cleaning, hydrogen peroxide for oxidation of heavy stains, and dissolved oxygen for enhanced bleaching action. This unified approach eliminates the need for separate pre-treatment and washing steps, reducing process complexity while maintaining effective stain removal.
Solution Approach 2:
The foam composition serves multiple cleaning functions simultaneously: surfactant-based stain lifting, hydrogen peroxide oxidation, and oxygen bleaching. This multi-functional formulation allows a single application to handle various types of stains (organic, inorganic, protein-based) that would otherwise require different specialized treatments.
3Reliability
If conventional detergent is used, then light stains are removed, but heavy and greasy stains remain because detergent is diluted
Solution Approach 1:
The patent changes the physical state and concentration parameters by using foam instead of liquid detergent. The foam structure maintains high concentration of cleaning agents (surfactants at 5-20%, hydrogen peroxide at 3-12%, dissolved oxygen) that would be diluted if applied as liquid. This parameter change ensures sufficient concentration for heavy stain removal while providing targeted delivery.
Solution Approach 2:
The patent creates a composite foam system combining surfactants, hydrogen peroxide, and dissolved oxygen in a single formulation. This composite structure allows synergistic action where surfactants lift stains, hydrogen peroxide oxidizes colored stains, and dissolved oxygen provides bleaching power, collectively handling heavy and greasy stains that conventional single-function detergents cannot remove.
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 solution enables effective removal of bleachable stains by concentrating cleaning agents in a stable foam structure, providing high oxygen availability and efficient stain removal with reduced spreading and dosage.
Implementation Method 1
The cleaning composition contains 2 to 12 wt.% of hydrogen peroxide
Implementation Method 2
a) 1 to 20 wt.% of alkoxylated C 8-18 alkyl ether sulfate surfactant having 1 to 30 moles of alkylene oxide; b) 0.1 to 3 wt.% of amphoteric surfactant
Data Source
AI summary
The present invention provides a cleaning system comprising a spraying device and a foamable liquid cleaning composition, said spraying device comprising a container holding the foamable liquid cleaning composition, a spray head, and a liquid supply arrangement for transferring the foamable liquid detergent composition from the container to the spray head, said foamable liquid cleaning composition comprising: a) 1 to 20 wt.% of alkoxylated C8-18 alkyl ether sulfate surfactant having 1 to 30 moles of alkylene oxide; b) 0.1 to 3 wt.% of amphoteric surfactant; c) 2 to 12 wt.% of hydrogen peroxide; d) at least 65 wt.% water; said cleaning composition having a viscosity of less than 100 mPa.s at 25°C and 20 s-1, and forming a foam with a density of less than 0.4 g/ml when ejected from the spray device through the spray head. The cleaning system of the present invention can be used to deliver the cleaning composition in the form of a stable foam. This foam is particularly effective at removing stains from fabric.