| 摘要 |
<p>A tape cartridge comprises a cartridge case made of a complex plastic material being a plastic material made of polyolefine resin, mixed with a filler of 45 percent to 65 percent by weight of said plastic material in the shape of a particle made of at least one of calcium carbonate and barium sulfate, saidtape cartridge having a dynamic loss of more than 1 x 10<Sup>9</Sup> dyne/cm<Sup>2</Sup> within the range of oscillation frequency of 0.1 Hzto 1000 Hz. Accordingly, the tape cartridge according to the present invention can prevent a running tape arranged in the tape cartridge from oscillating because an outside oscillation is attenuated in the tape cartridge, and also the tape cartridge can reduce a modulation noise occurred by the outside oscillation.</p> |
