The Manufacturing Process of Pre-Wetted Lint-Free Wipes:

1. Core Production Process

1. Material Selection:

   • Ultra-fine fibers: 0.3-0.5μm polyester/nylon blend

   • Solvent formulation: 99.9% IPA (electronic grade) or 75±2% ethanol (medical grade)

2. Weaving Process:

   • Warp knitting in Class 100 cleanroom

   • Density control: 60±5 threads/cm²

3. Pre-Wetting Treatment:

   • Vacuum impregnation: -0.08MPa for 30±2min

   • Precision dosing: 0.15-0.25g/dm² solvent loading

4. Post-Processing:

   • Laser edging: 150±5℃ cutting temperature

   • ESD treatment: Surface resistance 10⁶-10⁹Ω

2. Key Process Control Points

✅ Cleanliness Control:

• Production environment: ISO Class 5 cleanroom (Class 3 workstations)

• Real-time particle monitoring: Laser counters for ≥0.3μm particles
  ✅ Solvent Stability:

• pH value: 6.5-7.5 (medical grade)

• Water content: <0.5% (electronic grade)

3. Quality Inspection System

4. Industry-Specific Production

• Medical Grade:

  • Gamma sterilization (25kGy dose)

  • Double sterile packaging (nitrogen-filled)

• Electronic Grade:

  • Carbon nanotube additive (anti-static)

  • Silicone-free treatment

5. Technological Innovations

• Smart Manufacturing:

  • Machine vision inspection (0.1mm defect detection)

  • Digital twin process optimization

• Green Production:

  • Bio-based solvents (reduced VOCs)

  • PLA biodegradable fibers