| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an endless belt for electrophotography which never peels off a primary endless belt on the whole including an end of a bead for meander prevention even when placed in a severe environment of, for example, a temperature of 70°C and a relative humidity of 90%. <P>SOLUTION: The endless belt 10 for electrophotography is characterized in that when wet heat aging is carried out for 72 hours in the environment of the temperature of 70°C and the absolute humidity of 90% while the primary endless belt body 11 and bead 12 for meander prevention are bonded, the absolute value of the difference between the peripheral size variation ratio of the endless belt 10 during the wet heat aging and the size variation ratio of the overall length of the bead 12 for meander prevention during the wet aging is 0.5% or less. <P>COPYRIGHT: (C)2007,JPO&INPIT |
