TONER, DEVELOPER, AND IMAGE FORMING APPARATUS
To provide a toner that is excellent in low-temperature fixability, high-temperature offset resistance property, heat-resistant storage property, glossiness of an image, and brightness of an image, and can prevent peeling of an image.SOLUTION: A toner contains polyester and a photoluminescent pigmen...
Saved in:
Main Authors | , , , , , |
---|---|
Format | Patent |
Language | English Japanese |
Published |
11.03.2021
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | To provide a toner that is excellent in low-temperature fixability, high-temperature offset resistance property, heat-resistant storage property, glossiness of an image, and brightness of an image, and can prevent peeling of an image.SOLUTION: A toner contains polyester and a photoluminescent pigment. The toner has a glass transition temperature during the first heating (Tg1st) in DSC of 45°C to 65°C. The polyester includes a component insoluble in THF and a component soluble in THF. The component insoluble in THF includes a component A having a glass transition temperature during the second heating (Tg2nd) in DSC of -45°C to 5°C, and a component B having a glass transition temperature during the second heating (Tg2nd) in DSC of 45°C to 70°C. The component soluble in THF includes a component C having a glass transition temperature during the second heating (Tg2nd) in DSC of 40°C to 65°C.SELECTED DRAWING: None
【課題】低温定着性、耐高温オフセット性、耐熱保存性、画像の光沢及び画像の光輝性に優れ、画像の剥がれを抑制することが可能なトナーを提供する。【解決手段】トナーは、ポリエステルと、光輝性顔料を含む。トナーは、DSCの昇温1回目におけるガラス転移温度(Tg1st)が45℃〜65℃である。ポリエステルは、THFに不溶な成分と、THFに可溶な成分を含む。THFに不溶な成分は、DSCの昇温2回目におけるガラス転移温度(Tg2nd)が−45℃〜5℃である成分Aと、DSCの昇温2回目におけるガラス転移温度(Tg2nd)が45℃〜70℃である成分Bを含む。THFに可溶な成分は、DSCの昇温2回目におけるガラス転移温度(Tg2nd)が40℃〜65℃である成分Cを含む。【選択図】なし |
---|---|
Bibliography: | Application Number: JP20190161553 |