摘要:
The invention aims at providing an inorganic particle-containing emulsion which enables further size reduction of particles and can bring about a mono-disperse system and an enhanced yield and a manufacturing method of a particle by the use of the emulsion. This aim can be performed by a water in oil emulsion prepared by mixing an oil phase liquid and an water phase liquid which contains inorganic particles under agitation, in which the water phase liquid contains inorganic particle having a specific gravity of 1.5 to 11 g/cm3 and 0.5 to 5 wt % of agar-agar as calculated by taking the quantity of water contained in the water phase liquid as 100 wt % and the oil phase liquid contains hydrophobic particles as a dispersion stabilizer and in which the water phase liquid is present as the dispersion phase of the water in oil emulsion with the inorganic particles dispersed in the organic particle-containing emulsion; and a manufacturing method of a particle which contains both inorganic particle and agar-agar by the use of the emulsion.
摘要翻译:本发明的目的在于提供一种能够进一步减小颗粒的无机颗粒乳液,并且可以通过使用该乳液产生单分散体系和增加产率以及颗粒的制造方法。 该目的可以通过在搅拌下混合油相液体和含有无机粒子的水相液体制备的油包水乳液进行,其中水相液体含有比重为1.5〜11g / cm 3的无机粒子 和0.5〜5重量%的琼脂,通过将水相液体中所含的水量取为100重量%计算,油相液体含有疏水性颗粒作为分散稳定剂,其中水相液体以 油包水乳液中的分散相与无机颗粒分散在含有机颗粒的乳液中; 以及通过使用乳液来同时含有无机粒子和琼脂的颗粒的制造方法。
摘要:
A granulating method for forming a particle with a continuous ink-jet method using a liquid material, in which the liquid material containing a solid component and a binder component is supplied into one or more ink-jet nozzles of a continuous ink-jet device, a droplet is formed by having the supplied liquid material flow out the ink-jet nozzle, the droplet is carried in to drying means for drying the droplet, and the carried droplet is dried so as to obtain a granulated particle(s), the granulated particle(s) and a granulating device.
摘要:
An object of the present invention is to provide a quality inspection method for obtaining a specifying factor which can more reliably indicate powder characteristics of a core material for an electrophotographic ferrite carrier. The method includes measuring an impedance of the core material for the electrophotographic ferrite carrier to obtain a Cole-Cole plot in which a real number impedance is arranged in an X-axis and an imaginary number impedance is arranged in a Y-axis, and evaluating characteristics of particles of the core material for the electrophotographic ferrite carrier using the Cole-Cole plot.
摘要:
A granulating method for forming a particle with a continuous ink-jet method using a liquid material, in which the liquid material containing a solid component and a binder component is supplied into one or more ink-jet nozzles of a continuous ink-jet device, a droplet is formed by having the supplied liquid material flow out the ink-jet nozzle, the droplet is carried in to drying means for drying the droplet, and the carried droplet is dried so as to obtain a granulated particle(s), the granulated particle(s) and a granulating device.
摘要:
An object of the present invention is to provide a quality inspection method for obtaining a specifying factor which can more reliably indicate powder characteristics of a core material for an electrophotographic ferrite carrier. To achieve the object, a method for inspecting the quality of a core material for an electrophotographic ferrite carrier adopts a method characterized in that the impedance of the core material for the electrophotographic ferrite carrier is measured by using an AC-resistance measurement method to obtain a Nyquist diagram (Cole-Cole plot) in which a real number impedance (Z′) is arranged in an X-axis and an imaginary number impedance (Z″) is arranged in a Y-axis and then the characteristics of the particles of the core material for the electrophotographic ferrite carrier is evaluated by using the Nyquist diagram (Cole-Cole plot). Here, the quality of a core material for the electrophotographic ferrite carrier is judged according to a predetermined equivalent circuit by using the value of the parameters one or two or more in combination selected from |Rs|, Rp1, CPE-T1, CPE-P1, Rp2, CPE-T2 and CPE-P2, which are AC-resistance values (including constant) obtained when the impedance of the carrier particles was measured.
摘要翻译:本发明的目的是提供一种质量检查方法,用于获得更可靠地指示用于电子照相铁氧体载体的芯材的粉末特性的指定因子。 为了实现该目的,用于检查电子照相铁氧体载体的芯材质量的方法采用的方法的特征在于,通过使用AC电阻测量方法测量电子照相铁氧体载体的芯材的阻抗,以获得 其中实数阻抗(Z')以X轴和虚数阻抗(Z“)排列的奈奎斯特图(Cole-Cole图)设置在Y轴上,然后将粒子的特性 通过使用奈奎斯特图(Cole-Cole图)评估电子照相铁氧体载体的芯材。 这里,根据预定的等效电路,通过使用选自| Rs |,R p 1,...,...中的一个或两个或更多个参数的值来判断用于电子照相铁氧体载体的芯材的质量 ,CPE-T 1,CPE-P 1,R p 2,CPE-T 2和CPE-P 2是当测量载体颗粒的阻抗时获得的AC电阻值(包括常数)。
摘要:
A resin-filled carrier for an electrophotographic developer obtained by filling resin into voids of a porous ferrite core material, wherein the porous ferrite core material has a pore volume of 0.055 to 0.16 mL/g and a peak pore size of 0.20 to 0.7 μm, and an electrophotographic developer using this resin-filled carrier.
摘要:
Disclosed are a ferrite carrier for electrophotographic developer and an electrophotographic developer using the ferrite carrier, wherein: the ferrite carrier is a composite ferrite composed of Li and Mg; when the composition of the ferrite is calculated as a mixture of a Li ferrite having a stoichiometric composition and a Mg ferrite having a stoichiometric composition, the excessive amount of Fe2O3 is less than 5 mol %, or the total excessive amount of Li2O and MgO is less than 1 mol %; the content of the elements other than Li, Mg, Fe and O is 2 % by weight or less; and further, the content of Mn in terms of element is 1000 to 9000 ppm.
摘要翻译:公开了一种用于电子照相显影剂的铁氧体载体和使用铁氧体载体的电子照相显影剂,其中:铁氧体载体是由Li和Mg组成的复合铁氧体; 当铁氧体的组成以具有化学计量组成的Li铁氧体和具有化学计量组成的Mg铁氧体的混合物计算时,过量的Fe 2 O 3小于5mol%,或者过量的Li 2 O和MgO是 小于1mol%; Li,Mg,Fe和O以外的元素的含量为2重量%以下; 此外,Mn的元素含量为1000〜9000ppm。
摘要:
It is contemplated to provide irregular shaped ferrite carrier which has a lower resistance, a high specific surface area, a low specific gravity and a longer operational life, and an electrophotographic developer comprising the ferrite carrier which prevents the toner scattering, has a high image density, and is responsive to high-speed and color imaging. The irregular shaped ferrite carrier is characterized in that the carrier particles are irregular shaped, and 40 percent by number or more of the particles have a rock candy sugar shape and/or an oyster shell shape, and that the shape factor (SF-1=R2/S×π/4×100, wherein R is a maximum length and S is a projected area.) is 140 to 250, and the distribution width (δ) is 60 or less.
摘要:
A carrier for electrophotographic developer comprises a resin carrier core comprising a binder resin and magnetic powder dispersed in the binder resin, and a coating layer comprising a coating resin on a surface of the core, the binder resin being a silicone resin obtained by curing of a polysiloxane compound (A) having an epoxy group and a polysiloxane compound (B) having a group capable of reacting with the epoxy group, due to a ring-opening addition reaction; the binder resin containing a functional group which is an epoxy group and/or a group capable of reacting with an epoxy group; the coating resin containing a functional group capable of reacting with the functional group of the binder resin; the functional group of the coating resin and the functional group of the binder resin forming a chemical bond.
摘要:
Ceramic sintered bodies having a different thickness along a predetermined axial direction are manufactured in the following manner. At first, a ceramic formed body to be sintered having different thickness along the predetermined axial direction is accommodated in a hot press apparatus. An upper forming mold and a lower forming mold each having a forming surface corresponding to an upper surface and a lower surface of the ceramic formed body to be sintered are set. A pressure along the predetermined axial direction is applied to the ceramic formed body to be sintered via the upper forming mold and the lower forming mold while heating the ceramic formed body to be sintered to perform a hot press sintering thereof. A thickness of a ceramic sintered body in such a manner that a maximum thickness in the predetermined direction is not two times larger or more than a minimum thickness in the predetermined direction.