Non Woven Fabric for Sanitary Napkins: Top Sheet, Back Sheet & ADL Guide
Non woven fabric for sanitary napkins is made from 4 key nonwoven raw materials — top sheet, ADL, back sheet and core wrap — see glossary of nonwoven terms and what is nonwoven fabric. Each layer needs different GSM, treatment and standard. Choosing right material affects absorbency, strike-through, rewet and cost per pad — Olefins Pakistan supplies all layers ex-stock Karachi as per product portfolio.
This procurement guide explains sanitary napkin construction for buyers. Top sheet needs hydrophilic treatment for fast strike-through <3 sec as per EDANA WSP 70.3, ADL needs bulky through-air for distribution, back sheet needs hydrophobic + breathable PE laminated for leakage barrier. For GSM selection see GSM guide, for width and roll length see width and roll length guide, for material specs see TDS per product and nonwoven for hygiene. All values as per Olefins lab report with method and tolerance as per COA per lot.
Non Woven Fabric for Sanitary Napkins — Raw Material List — GSM Chart & Specs
Complete spec table — as per TDS — FOB Karachi
| Layer | Material | GSM (as per TDS) | Treatment | Standard | Function |
|---|---|---|---|---|---|
| Top Sheet | Spunbond PP | 15-25 | Hydrophilic | EDANA WSP 70.3 | Soft contact, quick strike-through |
| ADL | Through-air / Spunbond | 30-50 | Hydrophilic + bulky | EDANA WSP 70.3 | Fluid distribution, anti-rewet |
| Back Sheet | PE Film + Nonwoven Laminated | 20-25 + 15 film | Hydrophobic + breathable | ISO 9073-1 | Leakage barrier, breathable |
| Core Wrap | Spunbond PP / Tissue | 12-17 | Hydrophilic | ISO 9073-1 | SAP core wrapping |
How to Choose Right Raw Material for Your Pad — As per Application
Top Sheet (15-25 GSM) → hydrophilic + strike-through <3 sec + rewet <1g + softness 0.18-0.30mm — see spunbond fabric
ADL (30-50 GSM) → bulky through-air + fast wicking + 0.6-1.2mm thickness — as per hygiene page
Back Sheet (20-25 GSM + PE) → hydrophobic + breathable WVTR 2000+ g/m²/24h — see SMS vs SMMS
Core Wrap (12-17 GSM) → hydrophilic + low lint + 15-25 N tensile — width 60-210cm as per width guide
Testing Standards for Sanitary Pad Nonwoven — As per TDS
Top sheet tested per EDANA WSP 70.3 (strike-through), WSP 70.7 (rewet). Back sheet per ISO 9073-1 for GSM and ASTM E96 for breathability. ADL per EDANA WSP 70.3 + thickness ISO 9073-2. All materials skin-safe — OEKO-TEX 100 compliant as per certification library. For sourcing, check sourcing guide and TDS per product for COA per lot.
Cost Per Pad Calculation — Why GSM Matters
Non woven fabric for sanitary napkins cost per pad is directly linked to GSM. Lower GSM top sheet 15 GSM vs 25 GSM saves ~40% material per pad. ADL 30 GSM vs 50 GSM affects thickness and distribution. Olefins recommends 18 GSM top sheet hydrophilic as sweet spot for softness and strike-through <3 sec, 35 GSM ADL bulky for fast wicking, and 22 GSM + 15 GSM PE back sheet for WVTR 2000+ and leak proof. Roll length formula as per width guide: Roll Length (m) = Weight × 1000 / (Width × GSM). Always order by meters, not kg, as per TDS library.
Why Olefins for Sanitary Napkin Nonwoven — Ex-Stock Karachi
Olefins supplies PP spunbond 15-25 GSM hydrophilic for top sheet, 30-50 GSM bulky for ADL, and PE laminated back sheet ex-stock Karachi — width 60-210cm full, slit 10-105cm any slit tolerance ±0.5cm, roll length 200-2500m GSM dependent, roll weight 25-120kg as per TDS. FOB Karachi and CFR to GCC as per current freight with OEM packing. For procurement, see hygiene application page and glossary for terms like strike-through, rewet, ADL, WVTR. Lot-specific stamped TDS on request — info@olefins.net.
Checklist Before Ordering
- Confirm top sheet GSM 15-25 hydrophilic, strike-through <3 sec, rewet <1g as per WSP 70.3 / 70.7
- Confirm ADL GSM 30-50 bulky, thickness 0.6-1.2mm, wicking fast
- Confirm back sheet 20-25 + 15 PE film, hydrophobic, breathable WVTR 2000+ as per ISO 9073-1 / ASTM E96
- Confirm width 60-210cm full and slit 10-105cm as per width guide
- Ask for COA per lot, OEKO-TEX 100, MSDS, and sample for line trial — contact us
Frequently Asked Questions — Non Woven Fabric for Sanitary Napkins
Top sheet is 15-25 GSM hydrophilic spunbond PP — soft contact layer with strike-through <3 sec and rewet <1g per EDANA WSP 70.3 — see GSM guide.
Olefins Nonwoven Pakistan — Karachi — ex-stock 60-210cm width, hydrophilic, PE laminated — view products — FOB Karachi — info@olefins.net.
