Liquid Filtering Bag With Zippered Flat-Sheet Washing
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Solution Overview
Problem
Reusable liquid filtering bags suffer from gradual fouling and clogging, leading to decreased filtering performance and require labor-intensive handwashing to restore effectiveness, making them unsuitable for convenient machine laundering and reuse in commercial settings.
Innovation Solution
A reusable liquid filtering bag with a continuous zipper along the bottom and side edge that allows disassembly into a flat sheet for easy machine washing, ensuring thorough debris removal and retention of filtering performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the filtering bag is made reusable with a closed structure, then it can be washed and reused many times, but it requires labor-intensive handwashing and machine washing fails to fully restore performance
Solution Approach 1:
The filtering bag is divided into two functional states: a closed bag configuration for filtering operations and a disassembled flat sheet configuration for washing. The zipper mechanism enables the bag to be opened completely, transforming from a three-dimensional closed structure to a two-dimensional flat sheet, allowing thorough access to all surfaces during machine washing and complete restoration of filtering performance.
2Reliability
If handwashing is used to restore filter performance, then embedded debris can be partially removed, but it is labor intensive and requires multiple cycles
Solution Approach 1:
The filtering bag transitions from a static closed structure to a dynamic open configuration during washing. The zipper mechanism allows the bag to be completely opened, enabling the flat sheet to be thoroughly washed inside-out and outside-in in a single machine washing cycle, fully restoring filtering performance without requiring repeated handwashing cycles.
3Ease of operation
If the bag structure is simplified for machine laundering, then washing becomes easier, but it may compromise filtering performance during operation
Solution Approach 1:
The filtering bag separates its operational and washing functions through the zipper mechanism. During filtering operations, the bag maintains its complete closed structure ensuring optimal filtering performance. During washing, the zipper allows complete disassembly into a flat sheet, enabling thorough machine laundering. The same structure serves both functions effectively without compromise.
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 disassembled configuration facilitates complete restoration of filtering performance after each wash cycle, enabling convenient machine laundering and compliance with sanitation regulations, suitable for commercial use.
Implementation Method 1
A liquid filtering bag is an important device used in the preparation of many beverages such as cold-brewed coffee, nut milk, and juice
Data Source
AI summary
A liquid filtering bag comprises a liquid-permeable fabric and zipper. When the zipper is fully engaged, the fabric folds to form a liquid filtering bag suitable for filtering liquids. When the zipper is fully disengaged, the fabric unfolds to form a flat sheet suitable for thorough washing.