Roll form medical bandaging product, medical bandage material, method of constructing same, and bandaging method

A medical bandaging product in roll form for being dispensed in predetermined lengths suitable for a given medical use, and comprising:

• a) an elongate sleeve formed of moisture-impervious material and sealable to prevent entry of moisture;
• (b) an elongate medical bandage material substantially the same length as the sleeve and positioned in said sleeve in a single length along the length of the sleeve and sealed therein against entry of moisture until use, said medical bandage material consisting of:
• (i) an substrate of a plurality of overlaid layers of unpadded woven or knitted fabric;
• (ii) a reactive system impregnated into or coated onto said substrate, said system remaining stable when maintained in substantially moisture-free conditions and hardening upon exposure to sufficient moisture to form a rigid, self supporting structure;
• and
• (iii) a very thin, protective liner sheet of no more than 1 mm in thickness enclosing said substrate along its length and forming a slick, low-friction contact surface for contact with the sleeve during storage, for preventing sticking between the substrate and an overlying padding layer interposed between the medical bandaging material and the skin of a patient, and adapted for permitting removal from the substrate of a subsequently-applied padding layer;
• (c) resealing means for resealing said sleeve against entry of moisture after a predetermined length of said bandaging product has been dispensed for use to prevent hardening of said substrate remaining in said sleeve.