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How to Identify High-Quality Nonwoven Fabric? 5 Must-Check Indicators for Consumers
1. Grammage (GSM): Fundamental Yet Critical
Definition: Weight per square meter of nonwoven fabric (unit: g/m²), directly affecting thickness and durability.
How to Judge:Medical protective clothing: 30-50g/m² (too thin = fragile, too thick = stuffy)；Shopping bags: 80-120g/m² (should withstand over 5kg)
Red Flag: Suppliers may falsify GSM - verify by weighing a 10cm×10cm sample (＞±5% error = substandard).
2. Hand Feel & Fiber Distribution
Quality Signs:Smooth surface without granular texture (low-grade meltblown often has "fish eyes")；No visible sparse areas when stretched vertically/horizontally
Simple Test:Crumple and unfold - obvious creases or fuzziness indicate poor fiber bonding.
3. Tear Strength: Core Durability Indicator
Testing Methods:Manual tearing: Quality fabric requires significant force (e.g., medical-grade cross-direction tear resistance ＞15N/5cm)
Examine fracture: Clean breaks suggest defects; fuzzy breaks indicate strong fiber entanglement
Industry Scam: Some manufacturers add recycled materials, reducing tear strength by 30%+.
4. Balancing Breathability and Safety
Application | Breathability (L/m²·s) | Safety Certification |
Medical mask inner layer | ≥800 | GB 19083-2010 |
Baby wipes | 200-400 | ISO 10993 Skin Irritation Test |
Warning Sign:Extremely low breathability (＜100) despite "ultra-breathable" claims may indicate prohibited coatings.
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