Wash stability is a critical challenge for reusable surgical gowns, with traditional coatings losing >50% repellency after 20 washes. Chemi Tech's crosslinking durable repellent achieves breakthroughs through:
UV radiation fixation: Photosensitive groups crosslink with fibers under UV exposure, enhancing abrasion and wash resistance;
Microporous synergy: Combined with PTFE microporous membranes (50–80nm pores), it creates dual physical-chemical barriers.
Application Case: Reusable Protective Gown Production
A medical device enterprise applied Chemi Tech Dura-Guard series (45g/L) to PET/PTFE composite gowns, achieving:
Durability breakthrough: After 100 wash-sterilization cycles (including 121℃ autoclaving), hydrostatic pressure remained at 3.2kPa (initial: 3.5kPa), with water absorption of only 0.06g;
Cost optimization: 70% reduction in per-use cost compared to disposable gowns;
Enhanced protection: Liquid barrier level maintained at 2–3 (ASTM F1671), with >99.9% bacterial blocking rate.
Performance Highlights:
Low-temperature compatibility: Supports 60℃ curing, reducing energy-intensive processes;
Multilayer integration: Adapts to moisture-wicking layers (e.g., cationic polyester), ensuring sweat expulsion while blocking external liquids;
Sustainability: Cuts medical waste by 30%, supporting operating room eco-efficiency.