| 摘要 |
PROBLEM TO BE SOLVED: To provide a cleaning blade that includes a member containing polyurethane rubber using 1,4-butanediol as a contact part with a cleaning target member, and is excellent in both wear resistance and chipping resistance.SOLUTION: There is provided a cleaning blade 342A that includes a contact corner part 3A brought into contact with a cleaning target member, and composed of a member containing polyurethane rubber obtained through polymerization of at least a polyisocyanate component and a polyol component including 1,4-butanediol in an amount of 30 mol% or more and 50 mol% or less relative to the total polyol component, and having a ratio of the impact resilience(Re[%]) to 100% modulus(M100[MPa])(M100/Re) of 0.25 or more, and an impact resilience(Re[%]) of 25% or more. |
