Fibers and Polymers

, Volume 19, Issue 12, pp 2597–2603 | Cite as

Development of a Multi-component Air Filter by Incorporating the Density Gradient Structure in Needle Punched Nonwoven

  • Rupayan RoyEmail author
  • Soumili Chatterjee


In this article, the authors have investigated about the filter media created by using the concept of density gradient structure with layers of needle punch nonwoven. Different density of nonwoven layers was created by using three different fibres (polyester, polypropylene, acrylic) of three different deniers (9, 3, 1.5). The density gradient structures were formed combining the layers together. Different combinations of layers were considered to form a filter media. Air permeability and air filtration efficiency were evaluated, as they are the primarily important parameters of a filter media. It was found that different combination results in different filtration efficiency with different air permeability and pressure drop.


Multi-component Density gradient Needle punched Filter media Filtration efficiency 


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Copyright information

© The Korean Fiber Society, The Korea Science and Technology Center 2018

Authors and Affiliations

  1. 1.Department of Textile TechnologyIndian Institute of Technology DelhiNew DelhiIndia
  2. 2.Department of Jute and Fibre TechnologyUniversity of CalcuttaKolkataIndia

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