Meltblown Fabric Tests - Particle Filtration Efficiency

Protective Clothing Tests

Meltblown Fabric Tests - Particle Filtration Efficiency

Normal medical masks contain three layers of nonwoven fabric: spunbond fabric + meltblown fabric + spunbond fabric. Meltblown fabric is considered the heart of the mask. This fabric in the middle of the mask is a filter layer that filters bacteria and prevents germs from spreading.

Meltblown Fabric Tests - Particle Filtration Efficiency

Meltblown fabric is a film obtained from high melting index polypropylene. This fabric consists of many cross fibers stacked in random directions. Fiber diameter generally ranges from 0,5 to 10 microns. This thickness is essentially about one third of the diameter of a human hair.

Mask particle filtration efficiency tests are carried out to determine the particle filtration efficiency of face masks. In these tests, oil or non-oil particles are detected in the filters of face masks. As a result of the test, the meltblown nonwoven raw fabric used in the production of the mask is evaluated with a percentage. In other words, a meltblown fabric designated as N95 means that it has a filtration level of 95 percent.

Mask particle filtration efficiency tester is widely used by hospitals, mask research and development companies and manufacturing companies such as medical device examination centers, drug examination centers, security protection examination centers, disease prevention and control centers and textile examination centers. These devices are used to determine the filtration efficiency and resistance of particles such as masks and filter materials.

These test devices generally comply with the following standards, which are Chinese standards:

  • GB 2626-2019 Respiratory protection - Non-powered air cleaner particle mask
  • GB 19083-2010 Technical requirements for protective face mask for medical use
  • Technical characteristics of GB T 32610-2016 daily protective mask
  • YY 0469-2011 Surgical mask

Meltblown (meltblown) nonwoven (nonwoven) fabric is a type of ultra-thin and non-fiber material produced by the meltblown process. It has special electrostatic, high efficiency and low resistance properties.

Our organization, among numerous tests, measurement, analysis and evaluation studies, with a trained and expert staff and advanced technological equipment, within the framework of national and international standards, to health institutions and manufacturers who request particle filtration efficiency tests within the scope of meltblown fabric testing services. services.

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