Cleaning Sheet Bonding Structure for Better Dust Retention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sheet-type cleaning tools lack an effective technique to enhance cleaning efficacy, particularly in terms of dust retention and distribution of fibers for improved cleaning performance.
Innovation Solution
A cleaning element comprising a base sheet and a holding sheet made of nonwoven fabric, with a fiber assembly overlaid on one face, featuring fusion-bonded parts of varying thickness to create a holding space for attachment and enhance fiber entanglement and volume, allowing for increased dust retention and cleaning effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the fiber assembly is made with uniform fusion bonding throughout, then the structure is simple to manufacture, but the fiber distribution is uneven and cleaning effectiveness is reduced
Solution Approach 1:
The patent applies local quality by creating different fusion bonding characteristics in different regions of the fiber assembly. Specifically, the center portion has fusion bonding with a first bonding strength, while the peripheral portions have fusion bonding with a second bonding strength that is weaker than the first. This local differentiation ensures uniform fiber distribution across the entire assembly while maintaining structural integrity where needed, directly resolving the contradiction between manufacturing simplicity and fiber distribution uniformity.
2Quantity of substance
If the fiber assembly has high volume and density, then dust retention is improved, but the structure becomes more complex
Solution Approach 1:
The patent applies parameter changes by varying the bonding strength parameter across different regions of the fiber assembly. The center portion uses stronger fusion bonding (first bonding strength) while peripheral portions use weaker fusion bonding (second bonding strength). This parameter differentiation allows the fiber assembly to achieve high volume and density for improved dust retention while managing structural complexity through controlled variation rather than uniform complex design.
3Strength
If the peripheral fibers are strongly bonded, then the fiber assembly maintains structural integrity, but fiber distribution becomes uneven and cleaning performance decreases
Solution Approach 1:
The patent resolves this contradiction by applying local quality with differentiated fusion bonding strengths. The center portion has stronger bonding to maintain structural integrity, while the peripheral portions have weaker bonding that allows for uniform fiber distribution. This local differentiation ensures that structural strength is provided where needed without compromising fiber distribution uniformity, thereby improving cleaning performance.
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 construction of the cleaning element with varying fusion-bonded parts and fiber lengths increases the fiber assembly's volume and density, leading to improved dust retention and a more effective cleaning performance by ensuring the fibers are densely spread and easily entangled, enhancing the overall cleaning experience.
Implementation Method 1
a first group and a second group of a plurality of fusion bonded parts which are discontinuously formed along a predetermined direction to fusion bond the base sheet and the holding sheet
Implementation Method 2
a pair of third fusion bonded parts is provided outside of the first group of the plurality of the first fusion bonded parts and the second group of the plurality of the first fusion bonded parts so as to fusion bond the base sheet and the fiber assembly
Data Source
Figure 1
Figure 2
Figure 3
AI summary
It is an object of the present invention to provide effective technique for a higher cleaning effect and higher operabilhy c3f a cleaning element (110) of a cleaning tool (109). The cleaning element (110) comprises a base sheet (111a), a holding sheet (12), and a fiber assembly (111 b) overlaid on one face of the base sheet (111 a) having the other face on which the holding sheet (112) is overlaid. It also includes first and second groups of fusion bonded parts (114, 115, 116) which are discontinuously formed along a predetermined direction to fusion bond the base sheet (111a) and the holding sheet (112), and a group of third fusion bonded parts (117) provided outside the first and second groups so as to fusion bond the base sheet (111a) and the fiber assembly (111 b), and a holding space (118) demarcated by the first and second groups between the base sheet (111a) and the holding sheet (112), the holding space (118) having at least one open end (118a, 118b) in the predetermined direction. The bonding thickness of the third fusion bonded part (117) in a thickness direction of the cleaning element (110) is smaller than the bonding thickness of the fusion bonded part (114).