1. Raw Material Preparation
Main Materials:
- Outer Layer (Non-woven Fabric): Water-resistant and blocks droplets.
- Middle Layer (Melt-blown Fabric): Core filtering layer to trap bacteria and viruses.
- Inner Layer (Non-woven Fabric): Skin-friendly and moisture-absorbing.
- Nose Clip: Plastic or metal wire for shape retention.
- Ear Loops: Elastic bands (usually spandex or polypropylene).
Auxiliary Materials:
- Printed labels, logos
- Packaging materials (PE bags, boxes, cartons)
🔹 2. Mask Body Production
2.1 Material Lamination:
- Three layers (outer + melt-blown + inner) are bonded using heat or ultrasonic welding.
- Automatically cut into mask body shape.
2.2 Nose Clip Insertion:
- Nose strip inserted at the top, fixed with ultrasonic welding or heat sealing.
2.3 Ear Loop Welding:
- Ear loops are attached on both sides using ultrasonic welding (either automatic or manual).
2.4 Folding & Shaping (for N95/KN95 masks):
- Masks like N95 or fish-shape are folded and pressed into shape using a forming machine.
2.5 Sterilization (for medical masks):
- Masks are sterilized via ethylene oxide (EO) or high-temperature disinfection.
🔹 3. Quality Inspection
3.1 Visual Inspection:
- Check for stains, deformities, or improper welding.
3.2 Dimensional Inspection:
- Ensure the size meets standard specifications.
3.3 Filtration Efficiency Testing:
- Conduct BFE (Bacterial Filtration Efficiency) and PFE (Particle Filtration Efficiency) tests.
3.4 Breathing Resistance Testing:
- Verify the airflow resistance to ensure comfortable breathing.
🔹 4. Packaging Process
4.1 Inner Packaging:
- Masks are packed in individual or bulk units using automatic or manual sealing.
4.2 Carton Packing:
- Inner packages are placed into cartons, labeled with batch numbers and date codes.
4.3 Storage & Shipping:
- Masks are stored in a clean, dry warehouse and shipped according to FIFO (First In First Out) principle.
🔹 5. Certification & Standards (Optional)
- CE (Europe)
- FDA (USA)
- ISO 13485 (Medical Devices Quality Management System)
- GB/T 32610 (China – Daily Protective Masks)
- GB 2626-2019 (China – KN95 Respirators)
