摘要:
This invention relates to a permanent magnet having magnetic anisotropy given by means of a newly developed mechanical alignment and a manufacturing method thereof, and more particularly to a magnet comprising R (at least one rare-earth element selected from tile group consisting of Pr, Nd, Dy, Ce, La, Y and Tb), M (at least one transition metal selected from the group consisting of Fe, Co, Cu, Ag, Au, Ni and Zr) and X (at least one IIIb element of the periodic table selected from the group consisting of B, Ga and Al) and manufacturing method thereof, said alloy of R-M-X series, which composes basic component, are melted and cast, then cast ingot is hot-worked at the temperature above 500.degree. C. to remove or eliminate liquid phase of non-magnetic R-rich phase to concentrate magnetic phase, and to give magnetic anisotropy by means of mechanical alignment. It can provide magnet with excellent property comparable to that of the magnet provided by the conventional manufacturing method while applying cast hot-working heat treatment process which does not includes powdering process.
摘要:
A method for producing resin particles using a dispersion liquid in which a dispersoid mainly made of a resin material is finely dispersed in a dispersion medium, the method comprising a dispersion liquid ejecting step for ejecting the dispersion liquid in the form of droplets and a dispersion medium removing step for removing the dispersion medium from the dispersion liquid in the form of droplets, wherein a granulation prevention agent for preventing or suppressing fine particles derived from the dispersoid from being agglomerated and then granulated is applied to the dispersion liquid.
摘要:
A method for producing resin particles using a dispersion liquid in which a dispersoid mainly made of a resin material is finely dispersed in a dispersion medium, the method comprising a dispersion liquid ejecting step for ejecting the dispersion liquid in the form of droplets and a dispersion medium removing step for removing the dispersion medium from the dispersion liquid in the form of droplets, wherein a granulation prevention agent for preventing or suppressing fine particles derived from the dispersoid from being agglomerated and then granulated is applied to the dispersion liquid.
摘要:
To provide a paper recycling device capable of recycling paper of increased whiteness level that can be widely used for applications other than paper for newspapers, the paper recycling device of the present invention has a dry type defibrator for crushing and defibrating paper, a first transport pipe for transporting defibrated material that was defibrated by the dry type defibrator, a cyclone for air classifying and deinking the defibrated material transported by the first transport pipe, a second transport pipe for transporting the defibrated material that was deinked by the cyclone, and a paper forming machine for forming paper with the defibrated material transported by the second transport pipe.
摘要:
The present invention provides a non-magnetic monocomponent negatively chargeable spherical toner including: a toner mother particle having a binder resin and a colorant; and an external additive including a hydrophobic inorganic fine particle having a number average primary particle size of 7 to 50 nm and a hydrophobic monodisperse spherical silica particle having a number average primary particle size of 70 to 130 nm, wherein the non-magnetic monocomponent negatively chargeable spherical toner has a mechanical strength of from 7 to 19 MPa, provided that the mechanical strength is determined from a 10% displacement load of a compression-displacement curve obtained in a microcompression test, wherein the hydrophobic monodisperse spherical silica particle has a work function (ΦS) smaller than a work function (ΦTB) of the toner mother particle, and a image forming apparatus using the toner.
摘要翻译:本发明提供一种非磁性单组分负电荷球形调色剂,其包括:具有粘合剂树脂和着色剂的调色剂母粒子; 以及包含数均一次粒径为7〜50nm的疏水性无机微粒和数均一次粒径为70〜130nm的疏水性单分散球形二氧化硅粒子的外部添加剂,其中,所述非磁性单组分具有负电荷 球状调色剂的机械强度为7〜19MPa,条件是机械强度由微压缩试验中获得的压缩 - 位移曲线的10%位移载荷确定,其中疏水性单分散球形二氧化硅颗粒具有功函数 小于调色剂母粒的功函数(Phi SUB TB)的图像形成装置,以及使用调色剂的图像形成装置。
摘要:
The present invention provides a negatively chargeable spherical toner having: a toner mother particle having a binder resin and a colorant, which has: a number average particle size of from 4.5 to 9 μm; a particle size distribution that has an integrated value of particle sizes of 3 μm or less of 1% or less; and an average sphericity of from 0.95 to 0.99; and an alumina fine particle externally added to the toner mother particle, which has a number average particle size of from 0.1 to 1.0 μm, wherein a work function (Φt) of the toner mother particle is larger than a work function (ΦA) of the alumina fine particle by at least 0.4 eV.
摘要:
The present invention provides An image forming apparatus having: a negatively chargeable spherical toner; an latent image carrier; a charging member for charging a surface of the latent image carrier uniformly without contacting the latent image carrier; an electrostatic latent image forming member for forming an electrostatic latent image on the surface of the latent image carrier; a developing member for developing the electrostatic latent image, without contacting the latent image carrier, by using the negatively chargeable spherical toner so as to form a toner image on the latent image carrier; and an intermediate transfer medium to which the toner image is transferred, wherein the negatively chargeable spherical toner haves: a toner mother particle having a binder resin and a colorant; and a hydrophobic alumina particle as an external additive, wherein the hydrophobic alumina particle has a work function (ΦA1) larger than a work function (ΦTM) of a surface of the intermediate transfer medium.
摘要:
The present invention provides a negatively chargeable spherical toner having: a toner mother particle having a binder resin and a colorant, which has: a number average particle size of from 4.5 to 9 μm; a particle size distribution that has an integrated value of particle sizes of 3 μm or less of 1% or less; and an average sphericity of from 0.95 to 0.99; and an alumina fine particle externally added to the toner mother particle, which has a number average particle size of from 0.1 to 1.0 μm, wherein a work function (Φt) of the toner mother particle is larger than a work function (ΦA) of the alumina fine particle by at least 0.4 eV.
摘要:
The present invention provides An image forming apparatus having: a negatively chargeable spherical toner; an latent image carrier; a charging member for charging a surface of the latent image carrier uniformly without contacting the latent image carrier; an electrostatic latent image forming member for forming an electrostatic latent image on the surface of the latent image carrier; a developing member for developing the electrostatic latent image, without contacting the latent image carrier, by using the negatively chargeable spherical toner so as to form a toner image on the latent image carrier; and an intermediate transfer medium to which the toner image is transferred, wherein the negatively chargeable spherical toner haves: a toner mother particle having a binder resin and a colorant; and a hydrophobic alumina particle as an external additive, wherein the hydrophobic alumina particle has a work function (ΦA1) larger than a work function (ΦTM) of a surface of the intermediate transfer medium.
摘要:
To provide a paper recycling device capable of recycling paper of increased whiteness level that can be widely used for applications other than paper for newspapers, the paper recycling device of the present invention has a dry type defibrator for crushing and defibrating paper, a first transport pipe for transporting defibrated material that was defibrated by the dry type defibrator, a cyclone for air classifying and deinking the defibrated material transported by the first transport pipe, a second transport pipe for transporting the defibrated material that was deinked by the cyclone, and a paper forming machine for forming paper with the defibrated material transported by the second transport pipe.