Recycled Plastic Vacuum Filter Bag With Dust Separation Durability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vacuum cleaner filter bags made from non-woven materials have high costs and ecological concerns due to the use of virgin plastics, and existing biodegradable options are not effectively disposed of, necessitating a solution that balances performance with ecological and economic viability.
Innovation Solution
Development of vacuum cleaner filter bags primarily composed of recycled plastics, with a structure that includes multiple layers of nonwoven fabrics and fibers formed from recycled materials, achieving a high proportion of recycled content while maintaining dust separation performance and service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nonwoven filter bags are made from virgin plastics to ensure high separation performance and mechanical strength, then dust separation performance and service life are improved, but material costs and ecological impact increase
Solution Approach 1:
The patent changes the material parameter from virgin plastic to recycled plastic (specifically rPET), achieving the same filter bag performance while reducing ecological impact and material costs. The recycled polyester fibers are processed into nonwoven fabrics that maintain the necessary filtration properties.
Solution Approach 2:
The patent recovers and reuses plastic materials that would otherwise be discarded as waste. By utilizing recycled polyester (rPET) from post-consumer or post-industrial waste streams, the invention transforms waste materials into functional filter bags, reducing the need for virgin plastic production.
2Strength
If multiple layers of nonwoven fabrics are used to achieve necessary mechanical strength and dust storage capacity, then service life and separation performance are improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent employs composite nonwoven structures made from recycled polyester fibers combined with binding agents or coating materials. This composite approach achieves the required mechanical strength and filtration performance without necessarily increasing the number of layers, as the composite material itself provides enhanced properties.
3Reliability
If high-quality nonwoven materials are used to ensure excellent usage properties, then dust separation performance is improved, but ecological sustainability deteriorates due to disposable nature
Solution Approach 1:
The patent changes the material origin parameter from virgin to recycled, specifically using recycled polyester (rPET) with high recycled content (e.g., ≥50%, ≥70%, or ≥90% recycled material). This parameter change maintains the necessary usage properties while significantly improving ecological sustainability by reducing virgin plastic consumption.
Solution Approach 2:
The patent recovers polyester materials from waste streams and transforms them into functional filter bags. This recovery process directly addresses the ecological concern by diverting plastic waste from landfills or incineration and giving it a new useful life as a filtration material.
Data Source
AI summary
The invention provides a vacuum cleaner filter bag, comprising a wall made of an air-permeable material enclosing the interior and an inlet opening made in the wall, characterized in that the air-permeable material comprises at least one layer of a nonwoven fabric and/or a layer of a nonwoven fabric, which comprises or consists of fibers formed from one or more recycled plastics.