| 摘要 |
<p>PROBLEM TO BE SOLVED: To lessen the load that a tape receives and to enable stable traveling by applying a lubricant of the same kind as a lubricant contained in the magnetic powder of the tape or approximate thereto on a surface activated by irradiation of the contact surface with the resin molded tape with UV rays, thereby executing chemical bonding. SOLUTION: A shaft rod 22 of a drum 8 housed in a UV irradiation device 20 is rotated at a low speed and the drum is subjected to the activation treatment by uniformly irradiating the entire peripheral surface thereof with the UV rays of a short wavelength from a UV lamp 21. Next, the activated drum 8 is immersed into a lubricant soln. 24 prepd. by using the lubricant identical or similar to the lubricant contained in the magnetic powder of the magnetic tape and is thus coated prior to stabilizing of the surface. Consequently, the lubricant is chemically bonded as an intermediate group to the activated surface and the film of the lubricant of an extremely thin film below 100 nm is formed. The more than needed lubricant is wiped away by cloth, etc., after drying. As a result, only the film of the chemically bonded lubricant remains and the improvement in image quality and voices is achieved.</p> |
