Method of manufacturing a track membrane

A method of manufacturing track membranes comprising the steps of:

• providing an explosion-proof chamber;
• providing a shell having a first end and a second end;
• providing a cartridge that is secured at the first end of the shell and contains a detonatable explosive material and a working substance in the form of at least one supersaturated solution of at least one water-soluble salt;
• providing a holder that has an open-bottom cavity and is freely insertable into the second end of the shell;
• providing a membrane matrix made from a plastic material and insertable into the recess of the holder;
• providing a cover for covering the open-bottom recess of the holder from the side of the first end of the shell, the cover being attachable to the holder;
• placing a membrane matrix into the recess of the holder and securing the membrane matrix in the recess of the holder by attaching the cover to the holder so that a major part of the membrane matrix is exposed to the interior of the shell;
• placing the shell with the cartridge and the membrane matrix in the holder with the cover into the explosion-proof chamber;
• generating an explosive wave by detonating the explosive material of the cartridge thus forming a high-speed jet of the particles of the working substance;
• forming a plurality of through holes in the membrane matrix by piercing the membrane matrix with said particles thus producing the membrane matrix having residual particles of the working substance and expelling the cover with the holder and the membrane matrix from the shell into the explosion-proof chamber;
• and
• opening the cover and removing the track membrane from the holder.