Method for making protective device for protecting carbon nanotube film

A method for making a protected carbon nanotube film, the method comprising:

• providing a base film, a protecting film comprising a release layer, a first spool, and two rollers in contact with each other;
• drawing out at least one carbon nanotube film from at least one carbon nanotube array;
• stacking a portion of the at least one carbon nanotube film and a portion of the protecting film on a portion of the base film along a length direction of the base film;
• and
• rotating the two rollers and the first spool to pull or draw out the at least one carbon nanotube film from at least one carbon nanotube array, so that the base film, the at least one carbon nanotube film, and the protecting film pass through the two rollers while being pressed by the two rollers and rolled onto the first spool;
• and the at least one carbon nanotube film is sandwiched between the base film and the protecting film, and directly contacted by the release layer, and the at least one carbon nanotube film consisting of carbon nanotubes,
• wherein the two rollers are heated and hot press the base film, the at least one carbon nanotube film, and the protecting film passing therebetween.