Coform Wet Wipe Preservative Composition for High-Water Lotion
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Solution Overview
Problem
Wet wipes with high water content face challenges in meeting preservative system efficacy requirements for microbial growth, particularly for infant and child use, where gentle and mild formulations are required while maintaining effectiveness against bacteria, mold, and yeast.
Innovation Solution
The development of wet wipe packages featuring a coform nonwoven material with a matrix of synthetic, cellulosic, and cotton fibers, combined with a lotion comprising high water content and a robust preservative system, including organic acids and chelating agents, to prevent microbial growth while being gentle on skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the water content of the lotion is increased to make the wet wipe gentler and milder on skin, then the gentleness and mildness of the wet wipe is improved, but the ability to meet preservative system efficacy requirements for microbial growth deteriorates
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition parameters of the preservative system. Specifically, it uses a combination of preservatives including phenoxyethanol (0.05-1.0%), ethylhexylglycerin (0.05-1.0%), and benzoic acid (0.05-0.5%) in a lotion that is 95-99.9% water. This adjusted parameter configuration enables the high water content lotion to maintain both gentleness and microbial growth prevention.
2Quantity of substance
If the water content of the lotion is increased to decrease the amount of chemicals applied to skin, then the mildness of the wet wipe is improved, but the risk of microbial growth increases
Solution Approach 1:
The patent applies composite materials by creating a composite preservative system that combines multiple preservative agents (phenoxyethanol, ethylhexylglycerin, benzoic acid) working synergistically. This composite approach provides broad-spectrum microbial protection while maintaining low overall chemical concentration and high water content (95-99.9%), thus reducing chemical exposure to skin while preventing microbial growth.
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 effectively prevents microbial growth in wet wipes with high water content, ensuring safety and gentleness for infant and child use, meeting preservative system efficacy requirements and maintaining skin health.
Implementation Method 1
the lotion is resistant to bacteria, mold, and/or yeast growth
Data Source
AI summary
Described herein is an array of wet wipe packages displayed via a merchandise display system. The array of wet wipe packages includes a first package, a second package, and a third package. The first package includes a first wet wipe having a first coform nonwoven material and a first lotion which is devoid of perfume. The second package includes a second wet wipe having a second coform nonwoven material and a second lotion which includes a perfume. The third package includes a third wet wipe having a third coform nonwoven material and a third lotion. The third lotion is different than the first lotion and the second lotion. The first coform nonwoven material, the second coform nonwoven material, and/or the third coform nonwoven material has from about 14.5% to about 45% cotton.