Bedding and bedding cover sheet
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Solution Overview
Problem
Filament three-dimensional bonded members used in bedding, such as mattresses and pillows, face challenges in maintaining breathability and cleanliness due to the difficulty in preventing milk and drool infiltration, which leads to bacterial growth and reduced breathability when wet.
Innovation Solution
A bedding configuration that includes a breathable cushion layer, a breathable water-repellent layer, and a breathable water-retentive layer, with a non-water-retentive water permeable layer optionally added, to prevent contamination and maintain breathability even when wet, using specific fabrics and materials like hydrophobic and hydrophilic fibers to manage moisture effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cover sheet is provided on the upper surface of the filament three-dimensional bonded member to prevent milk and drool infiltration, then cleanliness is improved, but breathability is lowered when the cover sheet is wetted
Solution Approach 1:
The cover sheet is divided into multiple functional layers: a water-repellent layer (first layer) that prevents liquid infiltration and maintains breathability, and a water-retentive layer (second layer) that absorbs and retains water. This segmentation allows each layer to perform its specific function without compromising the overall breathability and cleanliness of the bedding system.
Solution Approach 2:
The cover sheet uses composite material structure combining hydrophobic water-repellent materials and hydrophilic water-retentive materials. This composite approach enables the cover sheet to simultaneously achieve water repellency (preventing infiltration) and water retention (managing moisture) while maintaining breathability through the porous structure of both layers.
2Reliability
If the filament three-dimensional bonded member is used as cushion material, then breathability is improved, but it becomes difficult to wipe off milk and drool due to the intertwined filament structure
Solution Approach 1:
The water management function is extracted from the filament three-dimensional bonded member and transferred to the cover sheet. The cover sheet's water-repellent layer prevents liquid infiltration, while the water-retentive layer captures and holds water, thereby protecting the filament structure from contamination and making cleaning easier by allowing the cover sheet to be removed and washed separately.
Solution Approach 2:
The water-repellent layer provides preliminary protection by preventing milk and drool from reaching the filament three-dimensional bonded member in the first place. This preliminary action stops contamination before it occurs, making subsequent cleaning much easier as the filament structure remains dry and unwetted.
3Object-affected harmful factors
If a water-repellent layer is added to prevent milk infiltration, then cleanliness is improved, but the structure becomes more complex
Solution Approach 1:
The cover sheet is designed as a multi-functional component that simultaneously provides water repellency, water retention, and breathability. By consolidating multiple functions into a single integrated cover sheet structure, the design avoids the need for separate components for each function, thereby managing complexity while achieving comprehensive protection and moisture management.
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 prevents contamination of the bedding interior, maintains high breathability, and allows for easy cleaning, ensuring the bedding remains sanitary and comfortable for infants even when exposed to milk or drool.
Implementation Method 1
a breathable water-repellent layer which is provided on the upper side of the cushion layer and which is breathable and water-repellent
Implementation Method 2
a breathable water-retentive layer which is provided on the upper side of the breathable water-repellent layer and which is water-retentive and is breathable during water retention
Implementation Method 3
the non-water-retentive water permeable layer is tightly adhered to the skin and the like of the user who lies on the bedding so as to quickly guide water such as sweat to the breathable water-retentive layer
Data Source
AI summary
A bedding includes: a cushion layer which is formed with a filament three-dimensional bonded member and which is breathable; a breathable water-repellent layer which is provided on the upper side of the cushion layer and which is breathable and water-repellent; and a breathable water-retentive layer which is provided on the upper side of the breathable water-repellent layer and which is water-retentive and is breathable during water retention.