Malodor Control Composition with Acid Catalyst
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Solution Overview
Problem
Current malodor control compositions for absorbent articles are ineffective against amine-based and sulfur-based malodors, often requiring time to become noticeable and may overpower with overwhelming perfumes, failing to provide fast and broad-spectrum odor neutralization.
Innovation Solution
A malodor control composition comprising volatile aldehydes and an acid catalyst with specific vapor pressures, encapsulated or complexed for controlled release, is integrated into absorbent articles to neutralize malodors effectively, particularly amine-based and sulfur-based odors, without overpowering scents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional malodor control compositions are used, then they can mask odors with perfume, but they fail to effectively neutralize amine-based and sulfur-based malodors and may overpower with overwhelming perfumes
Solution Approach 1:
The invention changes the chemical parameters of the composition by using volatile aldehydes with specific vapor pressure ranges (0.01-13 mmHg at 25°C) and combining them with acid catalysts. This chemical parameter change enables effective neutralization of amine-based and sulfur-based malodors through chemical reaction rather than masking, while the controlled vapor pressure prevents overwhelming perfume scents.
Solution Approach 2:
The invention converts the potentially harmful overwhelming perfume scent into a benefit by selecting aldehydes with controlled vapor pressures that provide effective odor neutralization without creating an overpowering fragrance. The acid catalyst facilitates this conversion by enabling rapid chemical neutralization of malodors.
2Reliability
If conventional malodor control compositions are used, then they can provide odor control, but the time required for noticeable effect creates consumer doubt as to product efficacy
Solution Approach 1:
The composition is prepared in advance with pre-complexed or pre-encapsulated volatile aldehydes and acid catalysts in optimal ratios. This preliminary preparation ensures that upon contact with malodors, the neutralization reaction occurs rapidly and noticeably within minutes, eliminating the delay period that creates consumer doubt.
Solution Approach 2:
The invention optimizes the concentration and vapor pressure parameters of the volatile aldehydes (0.01-13 mmHg at 25°C) to achieve rapid noticeable effect. The specific vapor pressure range ensures sufficient volatility for quick action while maintaining controlled release to prevent overwhelming scents.
3Adaptability or versatility
If broad-spectrum malodor neutralization is achieved, then effective coverage of amine-based and sulfur-based odors is provided, but the composition may require complex formulations
Solution Approach 1:
The volatile aldehydes with acid catalysts serve multiple functions simultaneously: they neutralize both amine-based and sulfur-based malodors through chemical reaction, provides controlled fragrance without overwhelming scent, and the complexation or encapsulation mechanism controls release timing. This multi-functionality achieves broad-spectrum coverage without proportionally increasing formulation complexity.
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 composition rapidly reduces malodors by 20% or more within minutes, providing effective odor neutralization without overwhelming fragrances, ensuring improved odor control in absorbent articles.
Implementation Method 1
volatile aldehyde and an acid catalyst for neutralizing malodors
Implementation Method 2
volatile aldehyde and an acid catalyst for neutralizing malodors, including amine-based and sulfur-based odors
Implementation Method 3
complexed or encapsulated malodor control composition comprising at least one volatile aldehyde
Data Source
AI summary
An absorbent article comprising a complexed or encapsulated malodor control composition having at least one volatile aldehyde and an acid catalyst, and methods of use thereof, are provided. The malodor control composition is suitable for a variety of absorbent articles, including use in diapers, toddler training pants, adult incontinence garments, sanitary napkins, pantiliners, interlabial devices, hemorrhoid pads, and the like.