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公开(公告)号：US11675284B2
公开(公告)日：2023-06-13
申请号：US17144252
申请日：2021-01-08
CPC分类号： G03G9/08755 , G03G9/0804 , G03G9/0819 , G03G9/0832 , G03G9/08782 , G03G9/09783 , G03G15/0865
摘要： A toner for developing an electrostatic charge image contains toner particles containing at least one binder resin; the Mg element in an amount such that the net intensity of x-ray fluorescence from the Mg element in the toner is 0.10 kcps or more and 1.20 kcps or less; and at least one external additive including particles of a metal salt of a fatty acid.
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公开(公告)号：US11531284B2
公开(公告)日：2022-12-20
申请号：US16940814
申请日：2020-07-28
摘要： An electrostatic image developing toner includes toner particles including a binder resin and a release agent, an external additive A, and an external additive B. At least the external additive A is present on the surface of the toner particles. At least the external additive B is present on the external additive A. The external additive B is an aggregate of two or more particles. The toner particles have an average circularity of 0.8 or more and 0.94 or less. The amount of the release agent present at the surface of the toner particles is 5 area % or more and 30 area % or less based on the total surface area of the toner particles.
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公开(公告)号：US20220382176A1
公开(公告)日：2022-12-01
申请号：US17497144
申请日：2021-10-08
摘要： An electrostatic image developing toner includes a toner particle including an amorphous resin, a crystalline resin, and a release agent. When a cross section of the toner particle is observed, the toner particle satisfies conditions (A1) and (B1) below: Condition (A1): one or more domains of the crystalline resin, the domains having a diameter equal to 10% or more and 40% or less of the maximum diameter of the toner particle, are present in the toner particle, and Condition (B1): one or more domains of the release agent, the domains having a diameter equal to 10% or more and 40% or less of the maximum diameter of the toner particle, are present in the toner particle.
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公开(公告)号：US12050433B2
公开(公告)日：2024-07-30
申请号：US17409862
申请日：2021-08-24
CPC分类号： G03G9/0819 , G03G9/0821 , G03G9/08711 , G03G9/08755
摘要： An electrostatic charge image developing toner includes: a toner particle containing a binder resin; and an external additive including a silica particle having a circularity of more than 0.5 and 0.9 or less and a volume average particle diameter of more than 100 nm and 300 nm or less, in which a total Net intensity NA of an alkali metal element and an alkaline earth metal element in the toner particle measured by fluorescence X-ray analysis is 0.10 kcps or more and 1.20 kcps or less.
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5.发明授权公开(公告)号：US11698593B2
公开(公告)日：2023-07-11
申请号：US17157238
申请日：2021-01-25
CPC分类号： G03G9/08755 , G03G9/0802 , G03G9/0819 , G03G9/08782 , G03G9/08797
摘要： A toner for electrostatic image development contains toner particles containing a binder resin. The binder resin includes an amorphous resin and a crystalline resin. In the toner particles, a Net intensity of elemental Mg measured by X-ray fluorescence analysis is from 0.40 to 1.20 inclusive, and a Net intensity of elemental Cl measured by X-ray fluorescence analysis is from 0.02 to 0.60 inclusive.
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6.发明授权公开(公告)号：US11353803B2
公开(公告)日：2022-06-07
申请号：US17152016
申请日：2021-01-19
摘要： A toner for electrostatic image development includes toner particles containing an amorphous resin and a crystalline resin. The toner particles include first toner particles. When a cross section of each of the first toner particles is observed, at least two domains of the crystalline resin satisfy conditions (A), (B1), (C), and (D) below: condition (A): an aspect ratio of each of the at least two domains of the crystalline resin is from 5 to 40 inclusive; condition (B1): a length of a major axis of each of the at least two domains of the crystalline resin is from 0.5 μm to 1.5 μm inclusive; condition (C): an angle between an extension of the major axis of each of the at least two domains of the crystalline resin and a tangent at the point of contact of the extension with a surface of the each of the first toner particles is from 60 degrees to 90 degrees inclusive; and condition (D): a crossing angle between extensions of major axes of any two of the at least two domains of the crystalline resin is from 45 degrees to 90 degrees inclusive.
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公开(公告)号：US11906928B2
公开(公告)日：2024-02-20
申请号：US17400203
申请日：2021-08-12
CPC分类号： G03G9/09708 , G03G9/0819 , G03G9/08755 , G03G9/09725 , G03G15/08 , G03G21/1814
摘要： An electrostatic charge image developing toner includes: a toner particle containing a binder resin; and an external additive containing alumina particles having a volume average particle diameter of more than 5 nm and 80 nm or less and silica particles having a volume average particle diameter of 10 nm or more and 90 nm or less, and in the toner particle, a Net intensity NA of a total of an alkali metal element and an alkaline earth metal element, measured by fluorescence X-ray analysis, is 0.10 kcps or more and 1.30 kcps or less, and a ratio (Ws/Wa) of a content Ws of the silica particles to a content Wa of the alumina particles is more than 0.5 and less than 35.
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公开(公告)号：US11809130B2
公开(公告)日：2023-11-07
申请号：US17146922
申请日：2021-01-12
CPC分类号： G03G9/08755 , G03G9/0806 , G03G9/0817 , G03G9/0819 , G03G9/0832 , G03G9/08782 , G03G9/09708 , G03G15/0865
摘要： A toner for developing an electrostatic charge image contains toner particles containing at least one binder resin; the Mg element in an amount such that in an x-ray fluorescence analysis of the toner, the net intensity of the peak for the Mg element is 0.10 kcps or more and 1.20 kcps or less; and at least one external additive including particles of at least one compound represented by formula (1),
MTiO3 (1)
where M represents at least one selected from the group consisting of Ca, Sr, and Ba.-
公开(公告)号：US11733618B2
公开(公告)日：2023-08-22
申请号：US17139050
申请日：2020-12-31
IPC分类号： G03G9/087 , G03G15/08 , G03G21/18 , C08G63/547 , C08G63/16 , C08F212/08 , G03G9/09 , G03G9/08 , G03G9/097
CPC分类号： G03G9/08755 , C08F212/08 , C08G63/16 , C08G63/547 , G03G9/0821 , G03G9/08711 , G03G9/091 , G03G9/09733 , G03G15/0865 , G03G21/1814
摘要： An electrostatic image developing toner includes an amorphous polyester resin, a crystalline polyester resin, and C.I. Pigment Red 57:1, wherein a Net intensity NMg of an Mg element, the Net intensity NMg of being determined by X-ray fluorescence analysis, is 0.10 kcps or more and 0.40 kcps or less.
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10.发明授权公开(公告)号：US11550236B2
公开(公告)日：2023-01-10
申请号：US17154669
申请日：2021-01-21
摘要： A toner for electrostatic image development contains toner particles containing a binder resin. The binder resin includes an amorphous resin and a crystalline resin. In the toner particles, a Net intensity of elemental Mg measured by X-ray fluorescence analysis is from 0.02 to 0.15 inclusive, and a Net intensity of elemental Cl measured by X-ray fluorescence analysis is from 0.02 to 0.60 inclusive.
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