Nested Multi-Layered Pillowcase for Pathogen Blocking and Comfort
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Solution Overview
Problem
Existing pillowcases in overnight accommodations do not effectively block the transmission of germs, viruses, and blood-borne pathogens to the user, and lack comfort and packability for travelers, who often must use unfamiliar and potentially contaminated pillows.
Innovation Solution
A multi-layered pillowcase design featuring an outer breathable fabric and an inner anti-microbial, water-resistant pillowcase that floats within the outer case, secured by a zipper or buttons, allowing for easy packing and distinguishing from standard pillowcases through design or color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-layer pillowcase is used, then comfort and breathability are improved, but protection against germs and pathogens deteriorates
Solution Approach 1:
The patent implements a nested structure where an inner pillowcase is placed inside an outer pillowcase. The inner pillowcase provides protective functions (water resistance, pathogen blocking) while the outer pillowcase provides comfort and breathability. This nested configuration allows both contradictory requirements to be satisfied simultaneously without compromising either comfort or protection.
Solution Approach 2:
The patent uses composite material construction with the inner pillowcase made from water-resistant, pathogen-blocking material and the outer pillowcase made from breathable, comfortable fabric. This composite approach combines materials with different properties to achieve both comfort and protection, resolving the contradiction between ease of operation and harmful factor resistance.
2Object-affected harmful factors
If an anti-microbial inner pillowcase is added, then protection against pathogens is improved, but device complexity increases
Solution Approach 1:
The patent divides the pillowcase system into two distinct segments: an inner pillowcase dedicated to protection functions and an outer pillowcase dedicated to comfort functions. This segmentation allows each layer to be optimized for its specific purpose while maintaining overall simplicity. The modular design makes the system easier to manufacture, clean, and replace individually if needed.
3Volume of moving object
If the inner pillowcase is made smaller to float inside the outer case, then packability is improved, but volume for pillow insertion is reduced
Solution Approach 1:
The patent employs a dynamic size relationship where the inner pillowcase is slightly smaller than the outer pillowcase, creating a floating configuration. This dynamic sizing allows the inner case to be compact enough for easy packing while still providing sufficient volume to accommodate standard pillows. The slight size difference enables both the pillow to fit comfortably and the nested structure to maintain its protective function.
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 multi-layered pillowcase effectively blocks germs and pathogens while providing comfort and ease of use for travelers, ensuring a safer sleeping experience by creating a barrier between the user and potential contaminants.
Implementation Method 1
the inner pillowcase is made of a second material, wherein the second material is anti-microbial and adapted to block the flow of germs, viruses, body fluids and other blood-borne pathogens therethrough
Implementation Method 2
the second material is water-resistant and exhibits a moisture vapor transmission rate from 0.1 and 30 g/m2 day, as measured by ASTM 2298
Data Source
AI summary
Multi-layered pillowcases and methods of making and using the same are discussed herein. The multi-layered pillowcase generally includes an outer pillowcase and an inner pillowcase, wherein the inner pillowcase is smaller in total size than the outer pillowcase so as to allow the inner pillowcase to float inside the outer pillowcase and wherein the inner pillowcase is secured to the outer pillowcase.