Miyachi Eapro's interposer module for Kapton and Sarcon tape is a reel-to-reel feeder which holds a full spool of interposer tape on the left, and collects the used interposer material on the right. An intelligent spring mechanism prevents sticking of the interposer material to the thermode after bonding. Tension is controlled through a spring-operated level.
Why use interposer tape? It lengthens the life of the thermode by protecting it from damage and contamination from repeated exposure to fluxes, solder, etc..