Multilayer Premoistened Cleaning Wipe for Cracks and Crevices
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Solution Overview
Problem
Conventional single-layered premoistened cleaning wipes are inadequate for cleaning surfaces with narrow cracks, creases, and crevices, as they lack the necessary texture and versatility to effectively remove various types of detritus from diverse surfaces.
Innovation Solution
A premoistened multilayered cleaning wipe comprising a liquid-permeable first layer, a liquid-permeable second layer, and a core with a free liquid cleaning composition, where the first layer is apertured to capture lint and fluid transport, and the second layer is abrasive for dislodging soil, with longitudinal edge bonds providing structural integrity and flexibility for cleaning narrow areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-layered premoistened wipe is used, then the device is simple and easy to manufacture, but it cannot effectively clean surfaces with narrow cracks, creases, and crevices
Solution Approach 1:
The wipe is divided into multiple functional layers: a first layer with apertures for capturing lint and transporting fluid, a second layer with abrasive properties for dislodging soil, and a core layer for absorbing and releasing cleaning composition. Each layer performs a specific cleaning function, enabling the wipe to handle diverse surfaces and detritus types effectively.
Solution Approach 2:
The wipe combines different materials with complementary properties: a nonwoven fibrous material for the first layer, an abrasive material for the second layer, and an absorbent core material. This composite structure integrates multiple cleaning mechanisms (capture, dislodge, remove) into a single device, resolving the contradiction between versatility and complexity.
2Adaptability or versatility
If a single-layered wipe is used, then the manufacturing process is simple, but the wipe lacks the texture variety needed for different types of detritus
Solution Approach 1:
The manufacturing process is segmented into separate steps for creating each functional layer. The first layer is formed with apertures through a specific process, the second layer is prepared with abrasive properties, and the core is saturated with cleaning composition. This segmentation allows each layer to be optimized for its specific function while maintaining manufacturability.
Solution Approach 2:
The wipe is constructed as a composite of three distinct layers, each manufactured with specific properties and then bonded together. This approach maintains ease of manufacture through standardized layering processes while achieving texture variety and adaptability for different cleaning scenarios.
3Adaptability or versatility
If a single-layered wipe is used, then the structure is simple, but the wipe cannot deeply penetrate into narrow cracks, creases, and crevices
Solution Approach 1:
The wipe transitions from a two-dimensional single layer to a three-dimensional multilayered structure with varying thicknesses and densities. The core layer provides bulk for penetration, while the outer layers provide cleaning surfaces, creating a dimensional solution that enables deep penetration into narrow spaces while maintaining cleaning effectiveness.
Solution Approach 2:
The multilayered structure can be viewed as nested functional elements where the core is nested between the first and second layers, and the longitudinal edge bonds are nested at the periphery. This nested configuration allows the wipe to maintain structural integrity while adapting to narrow spaces, resolving the contradiction between penetration capability and structural complexity.
4Strength
If a multilayered wipe with longitudinal edge bonds is used, then the wipe has structural integrity for navigating tight spaces, but the device complexity increases
Solution Approach 1:
The structural integrity is achieved through segmented bonding: longitudinal edge bonds connect the layers at the periphery to provide strength for navigating tight spaces, while the layers remain distinct for functional purposes. This segmentation provides necessary strength without requiring complete integration of all layers, thus managing complexity.
Solution Approach 2:
The bonding is applied locally at the longitudinal edges rather than across the entire wipe surface. This localized bonding provides structural integrity where needed (at the edges for handling and penetration) while leaving the central cleaning surfaces free and flexible, thus achieving strength without excessive complexity.
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 multilayered design allows for effective cleaning of surfaces with varying textures and types of detritus, including narrow cracks and crevices, by providing a soft compliant surface, an abrasive layer for soil removal, and structural integrity for navigating tight spaces.
Implementation Method 1
a free liquid cleaning composition comprising between about 0.001% to about 10% by weight of said liquid cleaning composition of surfactant, said cleaning composition releasably absorbed in said core
Implementation Method 2
a liquid permeable first layer joined to a liquid permeable second layer
Implementation Method 3
the second layer is abrasive for dislodging soil
Implementation Method 4
a free liquid cleaning composition comprising between about 0.001% to about 10% by weight of said liquid cleaning composition of surfactant
Data Source
AI summary
A multilayered premoistened cleaning wipe having: a liquid permeable first layer joined to a liquid permeable second layer and a core disposed between the first layer and the second layer. A cleaning composition is releasably absorbed in the core. The cleaning composition has between about 0.001% to about 10% by weight of surfactant.


