Dual-Surface Flat Mop Cover for Particle-Free Cleanroom Disinfection
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Solution Overview
Problem
Existing flat mop covers are unsuitable for clean rooms due to material properties and production methods, leading to particle formation and uneven disinfectant release, which compromises cleaning effectiveness and cleanliness.
Innovation Solution
A flat mop cover design featuring a foam base body that can store and evenly deliver a large amount of liquid disinfectant, with a continuous foam layer and a textile outer layer to prevent particle release, allowing for efficient cleaning without fiber contamination and ensuring even disinfectant distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional nonwoven fabric layers are used with sewn pockets and longitudinal seams, then the mop cover can be manufactured with simple structure, but particles are formed and released during cleaning in clean rooms
Solution Approach 1:
The patent uses a foam material with porous structure as the base body instead of traditional nonwoven fabric layers. This foam material inherently provides liquid absorption and distribution functions without requiring sewn pockets or longitudinal seams, thereby eliminating particle formation from sewing operations while maintaining manufacturing simplicity.
Solution Approach 2:
The patent creates a composite structure by combining foam material base body with a textile outer layer that is applied (not sewn) to the foam. This composite material approach eliminates the need for sewing connections between layers, preventing particle release while maintaining structural integrity and liquid distribution functionality.
2Ease of manufacture
If liquid is stored in sewn pockets within nonwoven fabric layers, then the structure is simple to manufacture, but liquid distribution is uneven during cleaning
Solution Approach 1:
The foam material's inherent porous structure acts as a distributed liquid reservoir throughout the entire base body, eliminating the need for concentrated sewn pockets. This allows liquid to be evenly distributed across the cleaning surface through the foam's uniform pore structure, achieving both manufacturing simplicity and distribution uniformity.
Solution Approach 2:
The patent applies a textile outer layer specifically to the regions that contact the cleaning surface, while the foam base body provides liquid storage throughout its volume. This local differentiation of functions (textile for surface contact, foam for liquid storage) achieves even liquid distribution without complex pocket structures.
3Quantity of substance
If traditional mop covers are used with multiple layers and seams, then liquid can be stored, but contact time for disinfectant is reduced due to uneven liquid release
Solution Approach 1:
The foam material's porous structure provides high liquid storage capacity while enabling controlled, gradual release of liquid through its pore network. This ensures sustained liquid delivery to the cleaning surface throughout the wiping process, maintaining adequate contact time for disinfectant effectiveness.
Solution Approach 2:
The foam base body continuously delivers liquid to the cleaning surface throughout the entire wiping process, ensuring uninterrupted disinfectant contact. The gradual liquid release from the foam's porous structure maintains consistent liquid availability, extending the effective contact time compared to traditional pocket-based systems.
4Manufacturing precision
If foam material is used as base body, then liquid can be stored and evenly delivered, but manufacturing complexity increases
Solution Approach 1:
The foam material inherently provides both liquid storage and distribution functions through its porous structure, eliminating the need for complex multi-layer constructions with sewn pockets and seams. This single-material approach achieves uniform liquid delivery while actually simplifying the overall structure compared to traditional designs.
Solution Approach 2:
The patent uses a composite of foam base body with an applied textile outer layer. This composite structure achieves uniform liquid delivery through the foam's porous network while the textile layer provides surface contact functionality, creating a simple two-component system that is easier to manufacture than traditional multi-layer sewn constructions.
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 enables effective cleaning in clean rooms by absorbing and releasing disinfectant evenly, preventing particle formation and ensuring thorough disinfection, while being cost-effective and easy to manufacture.
Implementation Method 1
a foam layer 6 between the elongate surfaces 3, 4 is arranged... At least four times and at most twenty times its dry weight of liquid can be reversibly absorbed in the base body 2
Implementation Method 2
a foam layer 6 between the elongate surfaces 3, 4 is arranged... the foam layer 6 having no fibers
Implementation Method 3
At least four times and at most twenty times its dry weight of liquid can be reversibly absorbed in the base body 2... the foam layer 6 having no fibers
Data Source
AI summary
A flat mop cover (1) for arranging on a mop-cover holder (1a), comprising an elongate basic body (2), wherein the basic body (2) has a first elongate surface (3) and a second elongate surface (4), which are located opposite one another, wherein at least one foam layer (6) is arranged between the elongate surfaces (3, 4), and wherein the two elongate surfaces (3, 4) are each designed as cleaning surfaces and are arranged such that a plate-like carrying element (5) of a mop-cover holder (1a) can be accommodated in a sandwich-like manner between them, is characterized, in respect of the problem of configuring, and developing, a flat mop cover such that it can readily be used to clean surfaces which have to be cleaned in a clean room, in that the basic body (2) can absorb in a reversible manner at least four times, and at most 20 times, its dry weight of liquid, wherein the foam layer (6) does not have any fibres.