Laminated Cleaning Articles with Irregular Tuft Spacing
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Solution Overview
Problem
Existing cleaning articles, such as rags, paper towels, and disposable dusters with tow fibers, fail to effectively capture and retain a wide range of debris, including dense granular and low-density, voluminous debris, due to uniform tuft spacing that does not account for differences in debris size and density.
Innovation Solution
A cleaning article with discrete, irregularly spaced tufts of tow fibers bonded to a carrier sheet, allowing for optimal debris collection and retention by varying the spacing and density of tufts to intercept both large and small debris effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If uniform tuft spacing is used in cleaning articles, then manufacturing simplicity is maintained, but debris capture effectiveness deteriorates due to inability to account for differences in debris size and density
Solution Approach 1:
The patent applies local quality by varying the spacing and density of tufts in different regions of the cleaning article. Areas with higher debris density or specific debris types have different tuft configurations compared to other areas, optimizing capture effectiveness for local conditions while maintaining overall manufacturing feasibility through standardized production techniques.
Solution Approach 2:
The cleaning article is segmented into multiple zones with different tuft spacing patterns. Each zone is designed to handle specific types or sizes of debris, allowing the overall structure to address diverse cleaning needs simultaneously while maintaining a systematic manufacturing approach.
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 cleaning article efficiently captures and retains a wide range of debris, improving cleaning efficacy on surfaces like floors by ensuring tufts are strategically placed to intercept and hold debris, regardless of size and density.
Implementation Method 1
bonding at least some of said discrete portions of said precursor sheet and said tufts to a carrier sheet
Data Source
AI summary
A method of making a cleaning article. The cleaning article has discrete tufts of tow fibers. The discrete tufts are unequally spaced from adjacent tufts, to provide improved collection and retention of debris from a target surface. The cleaning article may be made by cutting a precursor sheet having tufts into discrete portions. The discrete portions are then bonded to a carrier sheet.