PET Meltblown Nonwoven Fabric Filter Prefilter Layer For Air And Liquid Filtration

PET meltblown nonwoven fabrics are one of the most commonly used filter medias in a great number of different filter applications, for example, in the filtration of airborne particles, including dust, pollen, and other harmful substances. A highly effective method of producing fine and efficient filter media is using meltblown technology. The process of making meltblown filter media begins with raw synthetic thermoplastic material, such as polypropylene (PP), or polyethylene terephthalate (PET). The material is melted and forced through an extruder with numerous small capillaries. As the individual melt streams exit the capillaries, hot air impinges on the fibers and blows them in the same direction. This “draws” them, resulting in fine, continuous fibers. The fibers are then thermally bound together to create a web-like fabric. An electrostatic charge is applied to the web to boost the filtration efficiency of the material for air filtration applications. The meltblown can be calendered to reach a specific thickness and pore size for liquid filtration applications.

Features and advantages of PET meltblown filter fabrics

• Low pressure drop
• Mechanical filtration controlled by pore size
• Bacterial barrier- antimicrobial properties
• Controlled oleophilic / oil absorbency properties
• Optional hydrophilic / hydrophobic properties
• High dustholding / dirtholding capacity
• Good chemical resistance
• Flame retardancy
• Dimensional stability
• Processability / pleatability

Specifications

Applications

PET Meltblown filter fabrics are used in a wide range of applications as a key functional layer in many composites for air and liquid filtration. We offer a diverse range of meltblown and composite filter fabrics to suit different industry applications. Common end-uses include:

• Air intake filters
• Masks and respirators for medical and industrial use
• Disposable medical gowns, coveralls
• Feminine hygiene and disposable diapers.
• Room air purifier filters
• Vacuum cleaner filters
• Fuel and oil filtration systems
• Specialty liquid filters
• Pleated filters
• Water filtration systems
• medical equipments
• Food packaging

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