Maintenance item and cleaning device including such a maintenance item
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Solution Overview
Problem
Current cleaning articles for floor surfaces, particularly those used in clean rooms and professional settings, face challenges such as strong adhesion to the floor due to microfiber absorption, leading to ergonomic issues and particle release, and have complex multilayer structures that are difficult to manufacture and limit absorption capacity.
Innovation Solution
A three-dimensional textile piece with a unitary knitted construction comprising a first and second knitted textile layer connected by binding threads, including microfibers and monofilament yarns, which improves ergonomics, water absorption, and simplifies manufacturing by eliminating seams and multiple layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cleaning article is made entirely of microfibers to maximize absorption and dust recovery, then the absorption capacity and dust recovery are improved, but the article adheres strongly to the floor making it difficult to handle
Solution Approach 1:
The cleaning article is segmented into distinct functional zones: a front cleaning zone with microfibers for absorption and a rear scraping zone with stiffer fibers for mechanical scraping action. This segmentation allows each zone to perform its specific function optimally without the adverse effects of the other zone's material properties affecting the overall handling characteristics.
Solution Approach 2:
Different fiber types and stiffness levels are applied to different locations of the cleaning article. The front portion uses soft microfibers for maximum absorption, while the rear portion uses stiffer scraping fibers for mechanical cleaning action. This local differentiation of material properties optimizes both absorption capacity and handling ease in their respective functional zones.
2Quantity of substance
If more microfibers are used to increase absorption capacity, then the absorption and dust recovery are improved, but the article becomes too adhesive to the cleaning surface
Solution Approach 1:
The cleaning article divides the microfiber distribution into specific zones, concentrating them in the front cleaning area where absorption is needed, while the rear scraping area uses different fiber properties. This spatial segmentation allows high microfiber quantity in the absorption zone without causing excessive adhesion across the entire article.
Solution Approach 2:
The article applies different fiber compositions and densities to different locations. The front zone has high microfiber content for maximum absorption, while the rear zone has stiffer scraping fibers with different adhesive properties, creating local quality variations that optimize both absorption capacity and reduce unwanted adhesion.
3Reliability
If a multi-layer complex structure is used to improve cleaning performance, then the absorption rate is increased, but the manufacturing complexity and particle release increase
Solution Approach 1:
The invention merges multiple cleaning functions (absorption, scraping, and particle containment) into a single integrated knitted textile layer. The three-dimensional knitted structure combines the functions of multiple layers into one homogeneous structure, eliminating the need for separate absorbent layers, felt panels, and stitching assemblies, thereby reducing manufacturing complexity and particle release points.
Solution Approach 2:
The cleaning article uses a composite fiber structure within a single knitted layer, combining microfibers for absorption with stiffer scraping fibers in a three-dimensional knitted matrix. This composite material approach achieves the functional benefits of multi-layer structures while maintaining a single-layer construction that is simpler to manufacture and produces fewer particles.
4Reliability
If the cleaning article uses finer microfibers to improve absorption, then the liquid absorption and dust recovery are enhanced, but the adhesion to the cleaning surface increases making handling difficult
Solution Approach 1:
The article segments the fiber fineness by location, using finer microfibers in the front absorption zone and coarser stiffer fibers in the rear scraping zone. This spatial segmentation allows the fine microfibers to provide maximum absorption efficiency in the zone where they are most needed, while the coarser fibers in the rear zone provide mechanical strength and reduce adhesion issues.
Solution Approach 2:
Different fiber fineness levels are applied to different locations of the cleaning article. The front portion uses finer microfibers for optimal absorption efficiency, while the rear portion uses coarser scraping fibers that provide mechanical strength and reduced adhesion. This local quality differentiation optimizes both absorption efficiency and ergonomics in their respective functional zones.
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 solution enhances ergonomics, water absorption capacity, and reduces particle release, allowing for easier handling and increased cleaning surface area while simplifying the manufacturing process and facilitating recycling.
Implementation Method 1
Microfibers are known to form an extremely dense capillary network which gives them excellent absorption of liquids
Implementation Method 2
the binder yarns form a water-absorbent interlayer
Data Source
Figure 1~3
Figure 4~6
AI summary
The subject of the present invention is a maintenance article (1) for cleaning a determined surface comprising a three-dimensional textile piece (2), of unitary knitted construction, comprising a first knitted textile layer (3) and a second knitted textile layer (4), connected by binding threads (5) extending between the first textile layer (3) and the second textile layer (4). The first layer (3) comprises, on its so-called cleaning outer face (3a), microfibers, and optionally scraping fibers having a titration greater than 1 dtex, and the connecting threads (5) form an intermediate layer (7 ) absorbing water.