What is Meltblown Nonwoven Fabric: Face Mask Nonwoven Fabric Guide Pakistan
What is meltblown nonwoven fabric — meltblown is PP microfiber 20-50 GSM BFE 95-99% PFE 95-99% for face mask filter layer — sandwiched in SMS SMMS — see glossary and what is nonwoven fabric. Olefins Pakistan supplies face mask nonwoven fabric spunbond + meltblown ex-stock Karachi as per product portfolio and TDS per product and SMS vs SMMS.
What is Meltblown Nonwoven Fabric?
Meltblown nonwoven fabric is 100% PP extruded microfiber 1-5 micron diameter, GSM 20-50, width 17.5cm 26cm 52cm for face mask line and 160-260cm full width — BFE bacterial filtration efficiency 95-99% as per ASTM F2101, PFE particle filtration 95-99% as per ASTM F2299 — as per TDS-OLE-MB-25. Meltblown is middle filter layer — spunbond is outer/inner layer — see spunbond and GSM guide and width guide and hygiene and spunbonded olefin vs spunbond PP.
Face Mask Nonwoven Fabric Structure — SMS vs SMMS
As per TDS — FOB Karachi — info@olefins.net — BFE PFE as per ASTM
| Layer | Material | GSM | Function |
|---|---|---|---|
| Outer | Spunbond PP hydrophobic | 20-25 GSM — see GSM guide | Water resistant — as per spunbond |
| Middle | Meltblown PP BFE 95-99% | 20-50 GSM — as per TDS | Filter — bacteria particle — see TDS |
| Inner | Spunbond PP hydrophilic | 20-25 GSM | Comfort skin friendly — see hygiene |
| SMS | Spunbond+Meltblown+Spunbond | 50-100 GSM | 3 ply mask — see SMS vs SMMS |
| SMMS | S+M+M+S | 60-120 GSM | Higher filtration — medical — see SMS vs SMMS |
How to Choose Meltblown GSM for Face Mask
20-25 GSM BFE 95% → disposable 3 ply mask — PFE 95% — low breathing resistance < 5 mmH2O
25-30 GSM BFE 99% → surgical mask Type IIR — ASTM F2100 Level 2 — most common — see GSM chart
30-50 GSM BFE 99%+ PFE 99% → N95/KN95 filter — high filtration — see TDS library
Meltblown Nonwoven Fabric — Specs As per TDS
Olefins meltblown: 100% PP, GSM 20-50 tolerance ±2 gsm, width 17.5cm/26cm/52cm for mask machine and 160-260cm full width tolerance ±0.5cm, fiber diameter 1-5 micron, BFE 95-99% as per ASTM F2101, PFE 95-99% as per ASTM F2299, breathing resistance <5 mmH2O as per EN 14683, tensile MD 10-25 N/5cm as per ISO 9073-3. Electret charged for higher filtration without increasing GSM. Roll length formula as per width guide: Length = Weight × 1000 / (Width × GSM). Always order by meter and BFE level. Lot-specific TDS, COA, BFE PFE test report per lot — see TDS library and quality and innovation and GSM guide.
Spunbond vs Meltblown — What is Difference?
Spunbond is 15-30 micron fiber, 20-100 GSM, high tensile 40-120 N/5cm — for outer/inner mask layers — see spunbond fabric and spunbonded olefin vs spunbond PP. Meltblown is 1-5 micron fiber, 20-50 GSM, low tensile but high filtration due to microfiber web and electret charging — for middle filter layer. SMS combines both — spunbond gives strength, meltblown gives filtration — ideal for face mask, surgical gown — see SMS vs SMMS difference and hygiene and interlining.
Why Olefins for Face Mask Fabric in Pakistan — FOB Karachi
Ex-stock Karachi spunbond PP 20-100 GSM blue white and meltblown 20-50 GSM BFE 95/99% — width 17.5cm 26cm 52cm slit for automatic mask machine and 160-260cm full width. FOB Karachi and CFR to GCC Africa as per freight. Samples available within 1 day, bulk dispatch 3 days. OEM packing. For bulk order see product portfolio and contact us and request sample. For related see shopping bags and furniture and geotextile.
Storage and Handling of Meltblown Rolls
Store rolls vertically in dry area below 30°C, humidity <60% — meltblown electret charge degrades with moisture and heat — keep PE packing intact. Shelf life 12 months for BFE as per MSDS — test BFE before use if stored >6 months — see TDS library. For quality certificates COA per lot, BFE PFE test per ASTM F2101 / ASTM F2299 available via contact us and WhatsApp +92 316 2055400. Always order by BFE level not just GSM — see sourcing guide.
Frequently Asked Questions — Meltblown Face Mask
Meltblown is PP microfiber 1-5 micron 20-50 GSM BFE 95-99% PFE 95-99% for face mask middle filter layer — electret charged — see GSM guide and TDS and SMS vs SMMS.
Face mask meltblown is 25 GSM BFE 99% most common — 20-50 GSM range — breathing resistance <5 mmH2O — width 17.5cm 26cm for mask machine — see GSM chart and width guide.
SMS is S+M+S 3 layer 50-100 GSM for 3 ply mask — SMMS is S+M+M+S 4 layer 60-120 GSM higher filtration — see SMS vs SMMS difference and hygiene.
Olefins Pakistan Karachi — ex-stock spunbond 20-100 GSM + meltblown 20-50 GSM BFE 95/99% — width 17.5cm to 260cm — view products — FOB Karachi — sourcing guide.
