PE shoe covers are produced from resins and additives.
Blown film forming
Raw material mixing → Melt extrusion → blown film traction → cooling and shaping → winding
Extrusion temperature: 160-220℃ (temperature control in 5 zones)
Blow-up ratio: 2.5:1 (Controlling the transverse strength of the film)
Film thickness control
Standard model: 12-15μm (±1μm tolerance)
Thickened version: 18-25μm (puncture-resistant type)
Cutting and forming
High-frequency heat sealing
Temperature: 180-200℃
Pressure: 0.4-0.6MPa
Speed: 60-80 pairs per minute
Treatment of key parts
Curved toe: Ultrasonic cutting (no burrs)
Elastic sealing: Pre-installed TPE rubber band or shrink film process
Quality inspection link
| Inspection items | Standard method | Qualified standard |
| Sealing property | Water pressure test (0.5bar) | No leakage (3 minutes) |
| Tensile strength | ASTM D882 | ≥15MPa (longitudinal) |
| Anti-slip performance | DIN 51131 Friction coefficient test | Wet μ>0.3 |
| Microbial barrier | ASTM F1671 | Passed the Phi-X174 test |
PE shoe covers packaging automation
Counting and bagging: Photoelectric sensor + weight verification double insurance
Sterilization method:
Standard grade: UV surface sterilization
Medical-grade: EO ethylene oxide sterilization (residue <1ppm)