Cellulose Cleaning Article With Abrasive Layer
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Solution Overview
Problem
Existing cleaning articles struggle with effectively removing firmly adhering soiling from surfaces, despite their high water absorption and release capabilities, which are beneficial for liquid and loose soiling.
Innovation Solution
A cellulose-based cleaning article with an abrasive layer comprising a binder and scouring particles, where the binder anchors the particles to the cellulose fibers and a thickener prevents excessive penetration into the base body, allowing for a thick, durable, and water-permeable abrasive layer that enhances cleaning performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an abrasive layer is applied to improve cleaning performance against firmly adhering soiling, then cleaning effectiveness is improved, but the complexity of the cleaning article increases
Solution Approach 1:
The cleaning article combines a cellulose base body with an abrasive layer consisting of binder and scouring particles. This composite structure integrates the high water absorption capacity of cellulose with the mechanical cleaning action of abrasive particles, enabling effective removal of both liquid/loose soiling and firmly adhering dirt without requiring multiple separate products.
Solution Approach 2:
The invention merges the functions of water absorption (base body) and abrasive cleaning (abrasive layer) into a single integrated cleaning article. The abrasive layer is applied directly to the cellulose base body, combining the benefits of moisture retention and mechanical scrubbing action in one product, thereby improving cleaning performance without increasing the number of separate cleaning tools needed.
2Strength
If a binder is used to attach scouring particles to the cellulose base body, then adhesion of the abrasive layer is improved, but the risk of cellulose swelling and adhesion failure increases
Solution Approach 1:
The binder formulation is optimized to control the swelling behavior of cellulose during application. By adjusting parameters such as binder composition, solvent type, and application concentration, the process ensures adequate swelling for binder penetration and anchoring, while preventing excessive swelling that would cause adhesion failure. The binder is applied in a controlled manner to achieve reliable attachment of scouring particles.
Solution Approach 2:
The binder acts as an intermediary substance that mediates between the cellulose base body and the hydrophobic scouring particles. It provides a chemical bridge that enables adhesion between the hydrophilic cellulose fibers and hydrophobic abrasive particles, ensuring reliable attachment while accommodating the different surface properties of these materials.
3Reliability
If the abrasive layer is made thick to enhance cleaning performance, then cleaning effectiveness against stubborn dirt is improved, but the penetration of liquid components into the base body increases before hardening
Solution Approach 1:
The binder formulation includes thickeners that pre-condition the slurry to control its flow and penetration characteristics before application. This preliminary formulation ensures that when the abrasive layer is applied to the base body, the liquid components do not penetrate too deeply into the cellulose before the binder hardens, maintaining layer stability while achieving the desired thickness for effective cleaning.
Solution Approach 2:
The viscosity and flow properties of the binder slurry are carefully controlled through parameter adjustment, including thickener concentration and solvent selection. These parameter changes ensure that the slurry maintains sufficient thickness for effective abrasive action while preventing excessive penetration into the base body during application, balancing cleaning effectiveness with layer stability.
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 effectively loosens and removes stubborn dirt from surfaces while maintaining gentle cleaning of sensitive surfaces, thanks to the abrasive layer's design and the cellulose base's high water absorption capacity.
Implementation Method 1
Thickeners that impart thixotropic properties to the solution on which the abrasive layer is based are particularly advantageous. Such thixotropic properties can be processed particularly advantageously in the spray process. The solution is liquid due to the action of shearing forces in the spray apparatus and solidifies immediately after exiting, so that the solution has a high viscosity when it hits the base body, which limits the penetration depth of the solution.
Implementation Method 2
A binder, on the other hand, binds the scouring particles tightly. Possible binders are based on phenolic resin, acrylate or consist of a mixture of phenol and acrylate. Such binders are present in an aqueous solution, which partly penetrates into the base body, causes the cellulose to swell locally and is firmly anchored to the cellulose fibers after hardening.
Implementation Method 3
Cleaning articles produced by such a method are also referred to as sponge cloths. They are characterized in that they have a high water absorption capacity, which can be up to 15 times their own weight. These cleaning articles are therefore characterized by an advantageous water absorption and marked water release capacity, resulting in a good cleaning performance against liquid and loose soiling.
Data Source
Figure 1
AI summary
A cleaning article (1), having a base body (2) comprising a base of regenerated cellulose reinforced with cotton fibers, is characterized in that the base body (2) is provided at least on one side with an abrasive layer (3).