PEG Copolymer Odor Control Layer for Aldehyde Reduction
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Solution Overview
Problem
Current personal care products, such as incontinence products, struggle with odor control, relying on consumer acuity to detect offensive smells, and existing solutions like activated carbon ink face challenges in complete odor elimination and cost viability.
Innovation Solution
A composition incorporating PEG or PEG copolymers with n<=20, combined with activated carbon and silver nanoparticles, is applied as an odor control layer in personal care products to reduce aldehyde odors effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If activated carbon ink is used to reduce odor, then odor control is improved, but complete odor elimination is not achieved and cost increases
Solution Approach 1:
The patent combines activated carbon particles with polyethylene glycol (PEG) copolymer to create a composite odor control layer. This composite material leverages the adsorption capacity of activated carbon while PEG enhances retention and reduces migration, achieving more complete odor elimination than activated carbon alone at commercially viable concentrations.
Solution Approach 2:
PEG copolymer acts as an intermediary substance that binds to activated carbon particles and the substrate, improving the retention of activated carbon within the product structure. This mediator prevents migration of odor control agents while maintaining their odor-absorbing functionality.
2Object-affected harmful factors
If activated carbon is applied at high levels to eliminate odor, then odor control is improved, but cost and migration issues worsen
Solution Approach 1:
The composite of activated carbon with PEG copolymer creates a matrix that traps and retains the carbon particles within the product structure. This composite formulation allows effective odor control at lower, more economical concentrations while preventing migration through the product layers.
Solution Approach 2:
PEG copolymer serves as a binding intermediary that anchors activated carbon particles to the substrate, reducing migration loss. This intermediary enables the system to maintain effective odor control concentrations without the substance migrating to unwanted locations.
3Object-affected harmful factors
If activated carbon is used at high levels, then odor control is improved, but manufacturing cost increases
Solution Approach 1:
The PEG-activated carbon composite enhances the odor control efficiency per unit of activated carbon, allowing manufacturers to achieve effective odor elimination at lower overall concentrations, thus reducing material costs while maintaining performance.
Solution Approach 2:
The patent optimizes the concentration parameters of both activated carbon and PEG copolymer to achieve the minimum effective level for odor control. This parameter optimization reduces material costs while maintaining commercial viability and manufacturing feasibility.
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 combination of PEG, activated carbon, and silver nanoparticles provides significant odor reduction, achieving better results than individual components alone, ensuring effective odor control without migration issues and at commercially viable costs.
Implementation Method 1
the PEG or PEG copolymer reduces the aldehydes present in the personal care product
Implementation Method 2
an activated carbon ink printed liner for incontinence pads was recently introduced. Many urine odor ranking panel (ORP) studies have shown improvements in odor for the carbon-treated liner
Implementation Method 3
A composition incorporating PEG or PEG copolymers with n<20, combined with activated carbon and silver nanoparticles, is applied as an odor control layer in personal care products to reduce aldehyde odors effectively
Data Source
AI summary
An odor control layer for personal care products has a composition that has a PEG or PEG copolymer composition applied thereto. The layer can be placed in a personal care product, such as a diaper, training pant, absorbent under pant, adult incontinence product, or feminine hygiene product. Additional odor control layers may include silver nanoparticles and activated carbon compositions. In an alternative form, a single odor control layer includes the PEG composition and the activated carbon and/or silver nanoparticle compositions. A cleansing composition with PEG and possibly active carbon and silver nanoparticles may be combined with the personal care product to form a kit.