Meltblown Nonwoven: The Ultimate Guide to the "Golden Filter Layer"
The global meltblown nonwoven market is projected to reach $6.8 billion by 2030 (Allied Market Research). As the core material in 92% of medical masks, this guide explores manufacturing secrets, industry applications, and buyer's checklist.
1. Manufacturing Process Demystified
Core Three-stage Production
Polymer melting (PP pellets at 260-280°C)
High-velocity air blowing
Self-bonding web formation
Key Technical Parameters
Parameter
|
Medical Grade
|
Industrial Grade
|
Filtration
|
≥95%
|
≥85%
|
Air Permeability
|
≤120Pa
|
≤150Pa
|
Basis Weight
|
25-50gsm
|
15-80gsm
|
2. Top 8 Industrial Applications
N95 mask filtration layer (60% material cost)
Medical gowns moisture barrier
HEPA filter media
Automotive oil filters
Lithium battery separators (300% growth forecast)
Biodegradable agricultural films
3. 5-Step Supplier Selection Guide
Certification Checklist
Mandatory: ISO 9001, ISO 13485
Production Capacity Audit
Raw material inventory (PP ≥200 tons)
Equipment specs
4. Technological Breakthroughs
Bicomponent Meltblown
PP/PE composites boost efficiency by 30%
Nanofiber Enhancement
Electrospinning achieves 500nm fibers
Eco-friendly Solutions
bio-based meltblown reduces carbon footprint by 45%
FAQ:
Q: Medical vs industrial meltblown difference?
A: Key distinction lies in electret treatment - medical grade requires 12-month charge stability
