Split-Core Cleaning Pad Design to Reduce Shear in Pre-Moistened Wipes
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Solution Overview
Problem
Pre-moistened cleaning pads with high basis weight pulp fiber-containing fibrous structures tend to shear during use due to lack of bonding, leading to reduced mileage and effectiveness.
Innovation Solution
A cleaning pad with a split core component comprising two or more pulp fiber-containing fibrous structures, each with a basis weight of less than 250 gsm, to distribute stress and enhance bonding between layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the basis weight of the single core component is increased to increase capacity and mileage, then the liquid composition capacity is improved, but the core component tends to shear during use
Solution Approach 1:
The single high basis weight core component (over 130 gsm) is divided into multiple lower basis weight core components (each less than 130 gsm, preferably between 30-100 gsm). This segmentation reduces the basis weight of individual components, thereby reducing their tendency to shear during use while collectively maintaining sufficient liquid composition capacity through the combined structure of multiple components.
2Duration of action of moving object
If the basis weight of the core component is increased to increase mileage, then the capacity is improved, but the bonding between fibers becomes insufficient leading to shearing
Solution Approach 1:
The core component is segmented into multiple smaller basis weight components, each with improved bonding integrity (less than 130 gsm preferably 30-100 gsm). This segmentation ensures that each individual component maintains sufficient bonding between fibers, preventing shearing while the combined structure of multiple components provides extended mileage through sustained liquid composition release.
Solution Approach 2:
The cleaning pad employs a composite structure with multiple core components of different basis weights, each contributing to the overall performance. The combination of multiple bonded components creates a composite material system that achieves both high mileage and reliable bonding integrity, overcoming the limitations of a single high basis weight component.
Data Source
AI summary
A cleaning pad exhibiting a basis weight of at least 100 gsm, wherein the cleaning pad comprises two or more fibrous structure plies (10) comprising pulp fibers, wherein each of the fibrous structure plies exhibits a basis weight of less than 250 gsm and at least one of the fibrous structure plies exhibits a basis weight of greater than 70 gsm to less than 250 gsm. Furthermore a cleaning system wherein the cleaning pad is attached to an implement is provided.