As we all know, melt-blown cloth is the key material for the production of masks. The reason why masks can
effectively block viruses is mainly because the middle M layer of melt-blown non-woven fabric. Melt-blown non-woven fabric is made of
polypropylene material which called high-melt finger fiber. It is an ultra-fine electrostatic
fiber cloth that can effectively use static electricity to absorb
viral dust and droplets. The quality of the melt-blown cloth directly determines whether the mask can effectively
block harmful germs and particles.
What are the main testing requirements for meltblown cloth testing?
The main reference standards for melt-blown cloth inspection are
FZ/T 64034-2014 spun-bond/melt-blown/SMS non-woven fabrics, and also refer to the mask inspection standard
GB2626 self-priming filter anti-particulate respirator, GB 19083
medical Protective masks, GB/T 32610 daily protective masks, YY
0469 medical surgical masks, YY/T 0969 disposable medical masks.
The detection of meltblown cloth is divided into the following
1) Appearance quality inspection: fabric appearance, holes,
impurities, odors, micropores, crystal points, frit, stiff wire,
unreinforced area, thin mesh, width deviation, color difference,
2) Intrinsic quality testing: mass deviation rate per unit area,
longitudinal breaking strength, transverse breaking strength,
longitudinal and transverse breaking elongation, hydrostatic
pressure, and air permeability.
3) Detection of microbial indicators: total bacterial colonies,
total fungal colonies, coliforms, pathogenic pyogenic bacteria.
|Standard||Tests type||Filtration efficiency||Inhalation resistance||Flow||Particle size||Tests particle|
|EN149||FFP1||≥80%||≤ 21mmH2O||95L/MIN||0.3μm||Dop and Nacl|
Dop and Nacl
Dop and Nacl
Meltblown fabrics use polypropylene as the main raw material, and
the fiber diameter can reach 0.5-10 microns. These ultrafine fibers
with unique capillary structure increase the number and surface
area of fibers per unit area, thereby making the meltblown fabrics
have good air filtration properties. Is a good mask material. In
large, medium and small medical institutions, in earthquake- and
flood-affected areas, during the high season of SARS, avian
influenza and H1N1 virus, melt-blown filter paper plays an
irreplaceable role with its strong filtering performance effect.
The main application of melt-blown cloth:
1. Filter material
2. Medical and sanitary material
3. Environmental protection material
4. Clothing material
5. Battery separator material
6. Wiping material