-
1.发明授权公开(公告)号：US12130586B2
公开(公告)日：2024-10-29
申请号：US17874745
申请日：2022-07-27
CPC分类号： G03G9/08755 , G03G9/0804 , G03G9/0819 , G03G9/0904
摘要： A method for producing a resin fine particle includes dissolving or melting an oily mixture containing at least a polyester resin, a base, and a basic dye while applying a shearing force to the oily mixture, and emulsifying the dissolved or molten oily mixture by adding a surfactant and an aqueous medium while applying a shearing force to the dissolved or molten oily mixture to prepare a dispersion liquid of the resin fine particle. The resin fine particle includes the polyester resin and the basic dye, has a volume average particle diameter of 0.05 μm or more and 1 μm or less, and has a ratio of a concentration of the basic dye in a center of gravity portion of the resin fine particle to a concentration of the basic dye in a surface layer portion having a depth of 10 nm or less from a surface of the resin fine particle of 0.8 or more.
-
公开(公告)号：US11675285B2
公开(公告)日：2023-06-13
申请号：US17408058
申请日：2021-08-20
CPC分类号： G03G9/08755 , G03G9/083 , G03G9/0819 , G03G9/0902 , G03G9/0906 , G03G15/06
摘要： An electrostatic image developing toner includes toner particles containing a binder resin. In a differential scanning calorimetry curve of the toner particles, Tg1 is 58° C. or more and 68° C. or less, and Tg1−Tg2 is 20° C. or more and 40° C. or less, where Tg1 is a lowest onset temperature in an endothermic change during a first temperature increase, and Tg2 is a lowest onset temperature in an endothermic change during a second temperature increase.
-
公开(公告)号：US12078959B2
公开(公告)日：2024-09-03
申请号：US17465996
申请日：2021-09-03
发明人： Daisuke Tomita , Hiroshi Nakazawa , Yuji Isshiki
IPC分类号： G03G9/08
CPC分类号： G03G9/0815 , G03G9/0804 , G03G9/0821
摘要： A method for producing a toner for developing an electrostatic charge image includes aggregating at least resin particles and releasing agent particles contained in a dispersion to form aggregated particles; heating and fusing the aggregated particles to prepare a dispersion containing fused particles; and cooling the dispersion containing the fused particles to a temperature equal to or lower than a temperature 30° C. lower than an endothermic peak onset temperature derived from a releasing agent that constitutes the releasing agent particles, in which, in the cooling, the dispersion is cooled at a rate of 30° C./min or more and 130° C./min or less.
-
4.发明授权公开(公告)号：US12025950B2
公开(公告)日：2024-07-02
申请号：US16985688
申请日：2020-08-05
CPC分类号： G03G9/08755 , G03G9/0804 , G03G9/0819 , G03G9/0904
摘要： A resin fine particle includes a polyester resin; and a basic dye, in which a volume average particle diameter of the resin fine particle is 0.05 μm or more and 1 μm or less, and a ratio of a concentration of the basic dye in a center of gravity portion of the resin fine particle to a concentration of the basic dye in a surface layer portion having a depth of 10 nm or less from a surface of the resin fine particle is 0.8 or more.
-
-
-
搜索结果
4 条记录 (耗时 0.017 秒)
