Nano Silver Deodorizing Formula With Stabilized Oxygen Release
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Solution Overview
Problem
Existing deodorants and antiperspirants provide temporary relief, cause irritation, and lack long-term efficacy due to instability of reactive ingredients and insufficient penetration of nano-scale silver particles, often relying on masking agents and aluminum-based compounds.
Innovation Solution
A formulation comprising sodium or potassium percarbonate, carbonate, and nano-sized silver colloids coated with PVP or natural polymers, which release and stabilize oxygen to neutralize odor-causing compounds and penetrate skin pores to eliminate bacteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional deodorants use masking agents and aluminum-based compounds, then odor control is achieved, but skin irritation and pore clogging occur
Solution Approach 1:
The patent employs sodium percarbonate as a strong oxidizing agent that releases active oxygen to chemically neutralize odor-causing compounds through oxidation. This approach directly destroys the odor molecules rather than masking them, while being gentler on skin compared to traditional aluminum-based compounds and alcohol-based bactericides.
Solution Approach 2:
The patent converts the typically harmful effect of reactive oxygen species into a beneficial deodorizing mechanism. The percarbonate decomposition produces oxygen that oxidizes and eliminates odorants and bacteria, transforming what could be a destabilizing factor into the core active ingredient for odor neutralization.
2Reliability
If nano-scale silver particles are used for antibacterial action, then bacterial elimination is improved, but particle stability and penetration efficacy are insufficient
Solution Approach 1:
The patent creates a composite system where silver particles are integrated into a percarbonate-based formulation. The percarbonate acts as both an independent antibacterial agent and a stabilizing matrix for the silver particles, preventing aggregation and enhancing their penetration into skin pores while maintaining colloidal stability.
Solution Approach 2:
The percarbonate formulation serves as an intermediary carrier for the silver particles, facilitating their delivery to the skin surface and into pores. The decomposition products of percarbonate may also act as intermediaries that enhance silver particle stability and prevent premature aggregation.
3Speed
If percarbonate is used as oxidant, then deodorizing action is rapid, but ingredient stability in aqueous environment is poor
Solution Approach 1:
The patent formulates percarbonate in a way that maintains stability during storage (preventing premature decomposition) while enabling rapid activation upon application to skin. The controlled release mechanism ensures that the oxidizing action occurs at the appropriate time and location for maximum deodorizing effectiveness.
Solution Approach 2:
The patent optimizes parameters such as pH, concentration, and formulation composition to balance percarbonate stability and reactivity. By adjusting these parameters, the formulation maintains stability in the bottle but activates rapidly when applied to skin, achieving both storage stability and fast action.
4Quantity of substance
If aluminum-based compounds are used to block sweat ducts, then sweat reduction is achieved, but long-term safety concerns arise
Solution Approach 1:
The patent replaces the mechanical blocking approach of aluminum compounds with a chemical oxidation approach using percarbonate. Instead of physically blocking sweat ducts, the formulation chemically neutralizes odor-causing compounds and bacteria, achieving deodorizing effects without the safety concerns associated with aluminum-based antiperspirants.
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
Provides rapid, long-lasting odor neutralization with minimal irritation, effective against both skin surface and pore-resident bacteria, and enhances stability and penetration.
Implementation Method 1
sodium percarbonate readily decomposes in water, releasing oxygen
Implementation Method 2
the oxidation is transient and ineffective for long-term odor control
Implementation Method 3
The carbonate component helps retain the oxygen in solution, enhancing longevity and stability
Implementation Method 4
nano-sized silver particles small enough (2-100 nm) to penetrate into skin pores (typically 250-500 nm)
Implementation Method 5
Many commercial formulations also rely on aluminum-based compounds to block sweat ducts or incorporate strong synthetic fragrances to mask odor
Data Source
AI summary
A deodorizing formula including water, a first solute selected from sodium or potassium percarbonate, a second solute selected from sodium or potassium carbonate, and silver nano-particles wherein said silver particles may be selected from silver colloid particles, silver colloid particles coated with polyvinylpyrrolidone (PVP), and silver colloid particles comprising coated with a natural polymer. The first solute releases oxygen upon decomposition in water, while the second solute stabilizes the released oxygen. The silver nanoparticles penetrate skin pores to eliminate odor-causing bacteria and neutralize odor compounds. The method includes sequential mixing of components, aging the solution, and packaging into sprayable or topical forms for immediate and long-lasting deodorizing effects.


