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§ 1. The Tortuous Path Mechanism of Medical Kraft Paper
Medical-grade sterilization paper functions on a 'tortuous path' principle: during autoclaving, steam penetrates porous cellulose fibers to sterilize enclosed instruments; during cooling, the fibers contract, creating a tortuous barrier that blocks airborne bacteria and dust from entering.
§ 2. The Importance of Triple-Sealed Side Rails
Single-sealed pouches can burst under vacuum pulses in Class B autoclaves. Heavy triple-sealed side rails resist pressure spikes, while a chevron-shaped opening allows clean, fiber-free peeling at chairside.
§ 3. Dual-Parameter Chemical Indicator Verification
Color-changing chemical inks provide immediate visual proof of exposure to sterilization conditions: the steam indicator shifts from pink to dark brown, while the EO gas indicator shifts from blue to yellow, simplifying batch tracking for staff.
