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公开(公告)号：US11860570B2
公开(公告)日：2024-01-02
申请号：US17340471
申请日：2021-06-07
申请人： Konica Minolta, Inc.
发明人： Hiroshi Nagasawa , Yusuke Takigaura , Takaki Kawamura , Ami Motohashi , Natsuki Ito , Shiro Hirano
CPC分类号： G03G9/0924 , G03G9/08711 , G03G9/08755 , G03G9/09733 , G03G15/0126
摘要： A toner set includes a plurality of toners, wherein the toner set includes a first toner containing a yellow colorant and a second toner containing a cyan colorant, the first toner and the second toner each contain a binder resin containing a vinyl-based resin and a crystalline resin, and a release agent containing a hydrocarbon wax, a content of the vinyl-based resin with respect to a total mass of the binder resin is 50% by mass or more, the first toner contains the crystalline resin having a moiety having a crystal structure and a crystal nucleating agent moiety having a crystal nucleating agent, and the second toner contains the cyan colorant that is a compound represented by general formula (1).
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公开(公告)号：US11312865B2
公开(公告)日：2022-04-26
申请号：US17011694
申请日：2020-09-03
申请人： Konica Minolta, Inc.
发明人： Takaki Kawamura , Noboru Ueda , Natsuki Ito , Yusuke Takigaura , Ami Motohashi
摘要： An object of the present invention is to provide an image forming method capable of coating a photocurable varnish without unevenness on a toner image formed using an electrostatic latent image developing toner, and further having good adhesion between a varnish layer and the toner image. The image forming method of the present invention comprises: forming a toner image on a recording medium using an electrostatic latent image developing toner containing a toner particle comprising a binder resin and a release agent; and forming a varnish layer on the toner image by applying and curing a photocurable varnish comprising a photocurable compound. The binder resin comprised in the electrostatic latent image developing toner contains a crystalline polyester resin. The photocurable compound comprised in the photocurable varnish comprises a diol di(meth)acrylate having a straight hydrocarbon chain.
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公开(公告)号：US10067435B2
公开(公告)日：2018-09-04
申请号：US15787072
申请日：2017-10-18
申请人： Konica Minolta, Inc.
发明人： Takaki Kawamura , Shiro Hirano , Yusuke Takigaura
摘要： An electrostatic charge image developing toner includes a particulate toner matrix containing a binder resin and an external additive. The binder resin includes an amorphous polyester resin, a crystalline resin, and an amorphous vinyl resin. A storage modulus G′0(t) measured before the toner is left and storage moduli G′Tm-10(t) and G′Tm-20(t) measured after the toner is left for three hours at temperatures (Tm-10)° C. and (Tm-20)° C., respectively, based on a melting point (Tm° C.) derived from the crystalline resin satisfy the relations represented by G′0(t)
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公开(公告)号：US20210095134A1
公开(公告)日：2021-04-01
申请号：US17011694
申请日：2020-09-03
申请人： Konica Minolta, Inc.
发明人： Takaki Kawamura , Noboru Ueda , Natsuki Ito , Yusuke Takigaura , Ami Motohashi
摘要： An object of the present invention is to provide an image forming method capable of coating a photocurable varnish without unevenness on a toner image formed using an electrostatic latent image developing toner, and further having good adhesion between a varnish layer and the toner image. The image forming method of the present invention comprises: forming a toner image on a recording medium using an electrostatic latent image developing toner containing a toner particle comprising a binder resin and a release agent; and forming a varnish layer on the toner image by applying and curing a photocurable varnish comprising a photocurable compound. The binder resin comprised in the electrostatic latent image developing toner contains a crystalline polyester resin. The photocurable compound comprised in the photocurable varnish comprises a diol di(meth)acrylate having a straight hydrocarbon chain.
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公开(公告)号：US10203618B2
公开(公告)日：2019-02-12
申请号：US15881065
申请日：2018-01-26
申请人： Konica Minolta, Inc.
发明人： Yusuke Takigaura , Takaki Kawamura , Shiro Hirano
摘要： An electrostatic charge image developing toner includes a binder resin and a release agent. A ratio of a crystalline polyester resin to the total amount of a amorphous polyester resin and the crystalline polyester resin is within a range exceeding 40% by mass to 60% by mass. A temperature at which a storage modulus before heat left G′ before being left to stand at a temperature of X° C. becomes 1.0×108 Pa is within a range exceeding 45° C. to 55° C. A storage modulus after heat left G′ at a temperature of X′° C. at which a value of a ratio of the storage modulus after heat left G′ at a temperature of X° C. after being left to stand at the temperature of X° C. for 2 hours to the storage modulus before heat left G′ at the temperature of X° C. becomes the maximum is within a range of 1.0×108 to 5.0×108 Pa.
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公开(公告)号：US20180129146A1
公开(公告)日：2018-05-10
申请号：US15787072
申请日：2017-10-18
申请人： Konica Minolta, Inc.
发明人： Takaki KAWAMURA , Shiro Hirano , Yusuke Takigaura
CPC分类号： G03G9/08755 , G03G9/0823 , G03G9/0825 , G03G9/08702 , G03G9/08711 , G03G9/08795 , G03G9/08797
摘要： An electrostatic charge image developing toner includes a particulate toner matrix containing a binder resin and an external additive. The binder resin includes an amorphous polyester resin, a crystalline resin, and an amorphous vinyl resin. A storage modulus G′0(t) measured before the toner is left and storage moduli G′Tm-10(t) and G′Tm-20(t) measured after the toner is left for three hours at temperatures (Tm-10)° C. and (Tm-20)° C., respectively, based on a melting point (Tm ° C.) derived from the crystalline resin satisfy the relations represented by G′0(t)
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