The Ultimate Guide to Lint-Free Cloth Alcohol Cleaning:

1. Advantages of Lint-Free Cloth + Alcohol Cleaning

• Cloth Properties:

  • Ultra-fine fibers (0.2-0.5μm)

  • Class 10-100 cleanliness, minimal lint

• Alcohol Benefits:

  • Dissolves grease/fingerprints instantly

  • Fast evaporation (recommended: 70-75% ethanol or 99% IPA)

2. Material Selection Standards

✅ Safe Combinations:

• Medical/electronics: 75% ethanol + Class 100 cloth

• Precision industry: 99% IPA + Class 10 cloth
  ❌ Prohibited:

• Methanol-containing alcohol

• Recycled fiber cloths

3. Standard Operating Procedure

1. Pre-cleaning:

   • Remove particles with air blower

2. Wetting Method:

   • Spray alcohol on cloth (NEVER directly on device)

3. Wiping Technique:

   • Unidirectional straight strokes (no circular motion)

   • Single-use per cloth surface

4. Drying Inspection:

   • White light inspection after evaporation

4. Industry Applications

• Electronics: Post-soldering PCB cleaning

• Medical: Stainless steel instrument disinfection

• Optics: Lens surface maintenance

5. Risk Management

⚠️ Emergency Response:

• Alcohol leakage: Power off immediately

• Hazing: Reclean with chromatographic-grade alcohol