Cleaning Sheet Structure for Capturing Large Granulated Dirt
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Solution Overview
Problem
Existing cleaning sheets are inadequate in capturing relatively big granulated dirt, despite having good wiping capacity, as they do not effectively retain dust and dirt due to insufficient design features.
Innovation Solution
A cleaning sheet design featuring a base material sheet bonded with a cleaning surface forming sheet that has slacked sections and strategically placed cut portions, where the distance between bonding sections satisfies a specific relationship, enhancing frictional force and dirt capture efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a cleaning sheet is made from nonwoven fabric with simple structure, then manufacturing cost is low and production is easy, but the wiping capacity and dirt capture ability are insufficient
Solution Approach 1:
The cleaning sheet is segmented into multiple functional layers: a base material sheet and a cleaning surface forming sheet with cut portions. This segmentation allows each layer to perform specific functions - the base layer provides structural support while the cleaning surface layer with cuts captures dirt and dust, thereby improving wiping capacity without significantly complicating manufacturing
Solution Approach 2:
The cleaning surface forming sheet has cut portions formed at specific locations to create slacked sections with increased friction. This local modification of structure allows the sheet to have different properties in different areas - smooth bonding sections for adhesion and textured slacked sections for enhanced dirt capture, improving overall wiping performance while maintaining manufacturing efficiency
2Productivity
If cut portions are added to capture dust and dirt, then wiping capacity is improved, but the ability to capture big granulated dirt is still insufficient
Solution Approach 1:
The invention introduces a vertical dimension by creating slacked sections that protrude from the base material sheet. This three-dimensional structure allows big granulated dirt to be captured not only by the cut portions but also by the elevated slacked sections themselves, which can physically trap and hold larger particles that flat cut portions alone cannot capture effectively
3Ease of manufacture
If the cleaning sheet structure is simplified for low cost production, then manufacturing is easier, but frictional force and dirt retention are insufficient
Solution Approach 1:
Rather than complicating the entire sheet structure, the invention applies local quality modification by forming cut portions only in the cleaning surface forming sheet. This creates friction-enhancing slacked sections at critical locations where dirt contact occurs, increasing frictional force for dirt retention without requiring complex modifications across the entire sheet structure, thus maintaining cost-effectiveness
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 design significantly improves the capture of dust and dirt by increasing frictional force through creases and bent portions, resulting in enhanced wiping capacity and efficient dirt removal, including larger granules, while maintaining a simple and cost-effective manufacturing process.
Implementation Method 1
creases are formed at the slacked section of the cleaning surface forming sheet, so that bent portions having an irregular shape are formed. Accordingly, a frictional force between the cleaning sheet and the cleaning target surface increases.
Data Source
AI summary
The invention provides a cleaning sheet that is excellent in capturing dust and dirt. The cleaning sheet according to the invention includes a base material sheet (2) and a cleaning surface forming sheet (3) that is bonded to the base material sheet (2). A slacked section (5) is formed in the cleaning surface forming sheet (2) between the bonding sections (6, 6) where the base material sheet (2) and the cleaning surface forming sheet (3) are bonded to each other, and a plurality of cuts (7) for capturing dust and dirt are formed at the slacked section (5).