| 摘要 |
PROBLEM TO BE SOLVED: To provide resin composition for toner and toner good in low-temperature fixing property, high temperature offset resistance and blocking resistance and realizing excellent color development. SOLUTION: The resin composition for the toner is principally composed of amorphous polyester amide whose glass transition point temperature is 50 to 80°C and incorporates a polyester block copolymer consisting of a crystalline polyester segment whose melting point is 140 to 280°C and an amorphous polyester segment whose glass transition point temperature is 30 to 80°C, and set so that weight average molecular weight is 20,000 to 200,000. COPYRIGHT: (C)2004,JPO |
