Cleaning article comprising multiple sheets and methods thereof
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Solution Overview
Problem
Melamine-formaldehyde foam cleaning articles, while effective for removing soils and stains from hard surfaces, tend to retain dirt and are difficult to maneuver due to their thickness, making it challenging to clean irregularly shaped surfaces effectively.
Innovation Solution
The use of multiple sheets of melamine-formaldehyde foam, each 0.5 to 4 mm in thickness and with a density above 12 kg/m3, which are heat-compressed and can be arranged in various shapes and configurations, including with a second layer for enhanced cleaning and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thick blocks of melamine foam are used, then cleaning effectiveness is improved, but the foam becomes difficult to manipulate and fit into tight spaces
Solution Approach 1:
The foam block is divided into multiple thin sheets (0.5-4 mm each) that can be separated from one another. This segmentation allows users to manipulate individual sheets or small groups of sheets, making it easy to fit into tight spaces and conform to irregular surfaces while maintaining the cumulative cleaning effectiveness of multiple sheets.
2Reliability
If thick blocks of melamine foam are used, then cleaning effectiveness is improved, but the foam retains removed soils and stains
Solution Approach 1:
The sheets are designed to be easily separable from the main foam block. After cleaning, used sheets that have retained soils and stains can be removed and discarded, preventing cross-contamination. Fresh sheets can then be used for subsequent cleaning tasks, ensuring continuous cleaning effectiveness without the harmful effect of soil retention.
3Ease of operation
If multiple thin sheets are used, then manipulability is improved, but cleaning effectiveness may be reduced
Solution Approach 1:
Multiple thin sheets are bonded together to form a multi-layered foam block. Each sheet contributes to the overall cleaning effectiveness, and when used together, they provide sufficient thickness for effective soil removal while individual sheets remain thin and manipulable. The combination achieves both improved ease of operation and maintained cleaning 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
This configuration allows for effective cleaning of hard surfaces while minimizing the retention of dirt and improving surface safety, enabling better manipulation and contact with irregularly shaped surfaces.
Implementation Method 1
The sheets are heat-compressed
Implementation Method 2
the static COF between two sheets is greater than 6
Data Source
AI summary
The present invention relates to a cleaning article that includes a cleaning article that includes melamine-formaldehyde foam. The melamine-formaldehyde foam includes at least two sheets and has a density above 12 kg/m3. Each sheet is from about 0.5 to about 4 mm in thickness and the static COF between two sheets is greater than 6. Additionally the present invention encompasses processes for making and methods for cleaning hard surfaces with a cleaning article according to the present invention.