Product Info

The meltblown nonwoven layer inside surgical and N95 masks is the “heart” that provides high filtration efficiency while maintaining breathability, making true respiratory protection possible.

What is Meltblown Nonwoven Fabric?
Unlike woven or knitted textiles, meltblown fabric is produced by extruding molten polypropylene through fine nozzles while blasting it with high-velocity hot air. This creates a dense mat of ultra-fine fibers, only 1–5 microns in diameter.
This microscopic fiber structure gives meltblown exceptional filtering performance, making it the essential middle layer in medical and industrial masks.

Why Meltblown is Called the “Heart” of a Mask
The key function of the meltblown layer lies in its dual filtration mechanism:
- Physical Filtration: The ultra-fine fiber network forms very small pores, physically blocking dust, droplets, and microorganisms.
- Electrostatic Filtration (Electret Treatment): Fibers are electrostatically charged during production, allowing them to attract and capture particles far smaller than the visible pores.
This balance between filtration efficiency and breathability is why N95 respirators can filter at least 95% of airborne particles while still being wearable. Without the meltblown layer, masks would only stop large droplets not microscopic threats such as viruses and PM2.5.

Applications Beyond Medical Masks
Meltblown nonwoven is not limited to surgical or N95 masks. Its unique properties make it indispensable in:
- Industrial respirators for factory and construction workers
- Air filters for HVAC and cleanroom systems
- Liquid filtration in food, pharmaceuticals, and chemicals
- Oil absorbents due to high adsorption capacity

Why Quality Meltblown Matters
The global demand during the COVID-19 pandemic highlighted a key fact: mask effectiveness depends on meltblown quality. Low-grade meltblown results in masks that may look protective but lack real filtering power.
For factories, hospitals, and distributors in Thailand, sourcing high-quality meltblown nonwoven is critical for ensuring safety standards such as ASTM, EN, or NIOSH compliance.

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❓ FAQ
Q: Why is meltblown essential in N95 masks?
A: Because N95 masks must filter ≥95% of particles including those smaller than 0.3 microns which meltblown can achieve effectively.

Q: How is meltblown different from spunbond material?
A: Meltblown has much finer fibers for filtration, while spunbond provides strength and structure.

Q: What is Electret Treatment?
A: A process that electrostatically charges fibers to increase their ability to capture small particles.

📚 Glossary
Meltblown: Fine-fiber nonwoven used for filtration
Electret: Electrostatic charge applied to enhance filtration
Spunbond: Coarser structural nonwoven layer

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