Wet wipe with hydroxyacetophenon
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Solution Overview
Problem
Wet wipes are prone to microbial growth due to their moist environment, making it challenging to maintain sterility, especially after the package is opened, and current preservatives may not be sufficient to prevent fungal, bacterial, and yeast growth effectively.
Innovation Solution
A wet wipe with a nonwoven fabric soaked in a liquid composition containing hydroxyacetophenone as the sole preservative, which provides excellent antimicrobial durability and inhibits microbial growth without the need for additional preservatives, allowing for pH-independent preservation and reduced preservative content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional preservatives are used in wet wipes, then microbial growth is inhibited, but the preservative content must be high and pH adjustment is limited
Solution Approach 1:
The patent changes the chemical parameter by using hydroxyacetophenone instead of conventional preservatives, enabling effective microbial inhibition at lower concentrations (0.01-1% w/w) while allowing pH-independent preservation across a broad range (pH 3-8), thus resolving the contradiction between reliability and quantity of preservative substance
Solution Approach 2:
Hydroxyacetophenone serves multiple functions simultaneously: it acts as a preservative, a stabilizer, and a pH-independent antimicrobial agent, replacing the need for multiple separate conventional preservatives and enabling effective preservation with reduced overall preservative content while maintaining broad-spectrum microbial inhibition
2Reliability
If multiple preservatives are used in wet wipes, then microbial growth is effectively prevented, but the formulation complexity increases and cost increases
Solution Approach 1:
The patent extracts and isolates hydroxyacetophenone as the sole preservative agent, removing the need for complex combinations of multiple preservatives. This single-substance approach simplifies the formulation while maintaining effective broad-spectrum microbial prevention, directly addressing the contradiction between reliability and formulation complexity
Solution Approach 2:
Hydroxyacetophenone provides universal preservative action against bacteria, fungi, and yeasts simultaneously, replacing the need for multiple specialized preservatives. This multi-functional property reduces formulation complexity while ensuring comprehensive microbial prevention across different microbial types
3Reliability
If conventional preservatives are used in wet wipes, then preservation is achieved, but pH adjustment is restricted and preservative efficacy is limited in certain conditions
Solution Approach 1:
The patent changes the pH parameter flexibility by using hydroxyacetophenone, which maintains preservative efficacy across a broad pH range (3-8) without requiring specific pH optimization. This enables adaptable pH adjustment according to different skin needs and application conditions while maintaining reliable preservation, resolving the contradiction between preservation efficacy and pH adjustment flexibility
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 hydroxyacetophenone as the sole preservative in wet wipes effectively prevents microbial growth, ensuring the wipes remain sterile for an extended period, even in warm, humid conditions, and allows for pH adjustment according to skin needs, offering cost savings and improved preservative properties.
Implementation Method 1
the soaking agent containing hydroxyacetophenone as the sole compound with preservative properties
Data Source
AI summary
The invention relates to a wet wipe comprising a nonwoven fabric and an impregnating agent containing several ingredients, wherein the impregnating agent contains hydroxyacetophenone as the sole preservative.