Heat-sealable sterilization reels are constructed from transparent PET/PP multi-layers copolymer film and medical grade paper. Process indicators for steam and ethylene oxide sterilization are applied on the paper surface of the reel and help to differentiate between processed and unprocessed packages.

All process indicators are water based and non-toxic inks and meet or exceed the requirements of ISO 11140-1 standard and provide accurate and clear color change after sterilization process.