Base Sheet with Surface Fiber Structure
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Solution Overview
Problem
Conventional disposable wipers face challenges in balancing water and oil absorbency with abrasiveness and softness, often requiring trade-offs in manufacturing, which affects their performance across different industrial and consumer applications.
Innovation Solution
A base sheet with a microstructured topography is created by adhering staple fibers of specific lengths and deniers to a nonwoven web using an anionic adhesive, allowing for improved absorbency, abrasiveness, and softness on both surfaces without altering the underlying web composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If barrier properties of a fabric are improved, then protection is enhanced, but abrasiveness increases causing discomfort
Solution Approach 1:
The barrier layer is specifically engineered with high barrier properties to provide protection, while the outer surface maintains softness through careful material selection and fiber configuration. The absorbent layer handles the abrasive function with oil-absorbent particles, allowing the barrier layer to focus on protection without becoming overly abrasive, thus resolving the contradiction between barrier properties and comfort.
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 enhances water capacity, bacterial filtration efficiency, and softness while maintaining or improving the nonwoven web's properties, enabling a wiper that is both effective and comfortable to use across various applications.
Implementation Method 1
adhering staple fibers of specific lengths and deniers to a nonwoven web using an anionic adhesive
Data Source
AI summary
A base sheet formed from a nonwoven web and having a microstructured topography is provided. A plurality of staple fibers modified with a cation are affixed to the nonwoven web via an adhesive modified with an anion in order to improve one or more attributes of the nonwoven web, such as softness, absorption, abrasion, and barrier properties. The present disclosure also provides a method of forming a base sheet which includes printing the adhesive on the nonwoven web, and passing the nonwoven web through an electroplating module.