Cleaning Article Structure With Differential Fiber Overhang
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cleaning articles, such as rags and reusable dust gathering devices, face issues with hygiene, reach, and the need for extra steps in cleaning and fluffing, while disposable devices with strips often require excessive material and user instruction adherence for optimal performance.
Innovation Solution
A cleaning article comprising at least one layer of tow fibers and a sheet joined in a face-to-face relationship, where the tow fibers overhang the sheet with varying differential overlap along the longitudinal length, allowing for improved dust retention and reduced need for fluffing, and optionally attachable to a handle with a nonwoven fabric and segmented yarn layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If laterally extending strips are used to increase surface area and promote deformation of tow fibers, then dust gathering capability is improved, but excessive material is used and the strips can interfere with the tow fibers fully contacting the target surface
Solution Approach 1:
The patent removes the laterally extending strips from the cleaning article structure. Instead of having strips extend from both sides of the article to promote fiber deformation, the invention uses only the necessary tow fibers attached to the sheet, eliminating excess material while maintaining dust gathering functionality through the differential overlap design alone
Solution Approach 2:
The patent applies differential overlap of tow fibers over the sheet edges, where the amount of overlap varies throughout the longitudinal length. This creates local variations in fiber exposure that promote deformation and dust trapping without requiring uniform strips across the entire article, optimizing material usage while maintaining effectiveness
2Reliability
If laterally extending strips are used to increase surface area, then dust gathering capability is improved, but the strips can interfere with the tow fibers fully contacting the target surface
Solution Approach 1:
The patent removes the interfering laterally extending strips from the structure. By eliminating these strips, the tow fibers can freely extend and contact the target surface without obstruction, while the differential overlap design ensures sufficient fiber exposure for effective dust gathering
Solution Approach 2:
Instead of using strips to promote fiber deformation (as in prior art), the invention inverts the approach by using differential overlap of the tow fibers themselves over the sheet edges. The variation in overlap amounts naturally promotes fiber deformation and bending toward the target surface without requiring additional strip structures
3Quantity of substance
If the cleaning article is packaged in a flat state, then packaging efficiency is improved, but users must perform the fluffing step which many do not understand or follow
Solution Approach 1:
The patent structures the cleaning article with differential overlap of tow fibers over the sheet edges, where the varying overlap amounts create built-in deformation characteristics. This preliminary structural design ensures that when the article is removed from packaging, the fibers are already positioned to effectively contact and gather dust, eliminating or reducing the need for user fluffing
Solution Approach 2:
The differential overlap design allows the cleaning article to self-deform and self-position the tow fibers for optimal dust gathering performance upon use. The structure automatically adjusts the fiber orientation without requiring user intervention, making the product effective even when users do not follow fluffing instructions
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A cleaning article (10) optionally removably attachable to a handle (35). The cleaning article (10) has a layer (14) of tow fibers and a layer (12) of sheet material, joined together in a layered construction. The tow fiber layer (14) has a greater width than the sheet (12), so that the tow fibers (14) overhang the edge of the sheet (12). The amount of overhang varies throughout at least a portion of the length of the cleaning article (10). Such variation provides a differential overhang believed to promote fluffing of the tow fibers.