Embossed Cleaning Sheet Structure for Dust Collection and Shape Retention
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Solution Overview
Problem
Conventional cleaning sheets with raised and sunken shapes suffer from reduced strength and degraded dust collecting performance due to low-density areas, leading to shape collapse and reduced effectiveness.
Innovation Solution
A cleaning sheet with an embossed structure featuring outer fiber layers and an inner fiber layer, where fibers are entangled at boundaries, and includes raised and sunken embosses alternately arranged to enhance dust collecting performance and maintain shape integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If low-density areas are provided to form raised and sunken shapes, then dust collecting performance is improved, but sheet strength decreases
Solution Approach 1:
The patent applies local quality by creating distinct regions within the sheet - high-density areas for structural strength and low-density areas for dust collection. The raised and sunken embossed portions are formed by locally reducing fiber density, while the base sheet maintains high density for strength. This spatial differentiation of material properties resolves the contradiction between strength and dust collecting performance.
Solution Approach 2:
The sheet is segmented into multiple functional zones: the base sheet layer provides overall structural integrity, while discrete raised and sunken embossed portions are created as separate features on the surface. This segmentation allows different parts of the sheet to perform different functions - the base layer for strength and the embossed features for dust collection - without compromising either property.
2Reliability
If low-density areas are provided to form raised and sunken shapes, then dust collecting performance is improved, but shape stability decreases
Solution Approach 1:
The patent creates local quality variations where the embossed portions have reduced density for dust collection while the surrounding base sheet maintains high density for shape stability. This localized approach allows the raised and sunken features to be formed without compromising the overall structural stability of the sheet, as the high-density base material provides a stable foundation that supports the embossed features.
3Reliability
If embossed structure is added to improve dust collecting, then collecting performance is improved, but device complexity increases
Solution Approach 1:
The patent merges the structural support function and dust collection function into a single integrated sheet structure. The embossed features are not separate components but are formed directly as part of the sheet itself through compression molding or similar processes. This integration eliminates the need for separate reinforcement layers or additional components, maintaining simplicity while achieving improved dust collection.
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 embossed structure improves dust collecting performance and maintains the raised and sunken shapes during cleaning, providing excellent collecting performance and extended usage.
Implementation Method 1
fibers of the layers are entangled in boundary areas between the outer fiber layers and the inner fiber layer
Implementation Method 2
an embossed part in which the sheet is compressed in a thickness direction thereof
Data Source
AI summary
This cleaning sheet is provided with an embossed part in which the sheet is compressed in the thickness direction. The cleaning sheet is provided with outer layers, forming the surfaces of the sheet; and an inner layer sandwiched between the outer layers. In the boundary areas between the outer layers, and the inner layer, the fibers of the layers are entangled. This allows for a sheet that better retains the raised and sunken shapes embossed therethrough and exhibits excellent collecting performance.