RECORDING MEDIA CARTRIDGE

摘要

PROBLEM TO BE SOLVED: To lower the IR transmittance cartridge case made of a resin for housing recording media while assuring its strength, moldability, etc. SOLUTION: Carbon black is added at 0.1 to 1.2 wt.% to the resin for molding the cartridge case 2 made of the resin for housing the recording media 3. The IR transmittance is lowered by addition of the carbon black and the degradation in the strength is suppressed.