摘要:
The present invention provides a mono-component developing method comprising the steps of: supplying a mono-component developer containing a toner particles having an average shape factor (SF value) of 100 to 150 to a developer transporting member;regulating the developer on the developer transporting member by a regulating member to form a thin developer-layer on the transporting member;transporting the thin developer-layer by the transporting member to develop an electrostatic latent image; andafter development, making a residual developer on the developer-transporting member in contact with a static erasing member applied with a voltage having a polarity opposite to a charging polarity of the toner particles,and also provides a mono-component developing machine for effectuate the above method.
摘要:
The present invention relates to a non-magnetic toner for developing electrostatic latent images, having;an average degree of roundness of not less than 0.960,a standard deviation of degree of roundness of not more than 0.040,a value of D/d.sub.50 of not less than 0.40, in which D=6/(.rho..multidot.S) (.rho. is a true density of toner (g/cm.sup.3), and S is a BET specific surface area of toner (m.sup.2 /g)); d.sub.50 is an average weight particle size of toner, andan adhesive stress of 6 g/cm.sup.2 or less under a compression of 1 kg/cm.sup.2. The non-magnetic toner for developing electrostatic latent images provides high-quality images not only in low-speed areas, but also in high-speed areas, and has a superior transferring properties.
摘要翻译:本发明涉及用于显影静电潜像的非磁性调色剂,其具有: 圆度的平均度不小于0.960,圆度的标准偏差不大于0.040,D / d50的值不小于0.40,其中D = 6 /(rho×S)(rho为 调色剂的真密度(g / cm3),S是调色剂的BET比表面积(m2 / g)); d50是调色剂的平均重量粒径,压缩1kg / cm 2时的粘合应力为6g / cm 2以下。 用于显影静电潜像的非磁性调色剂不仅在低速区域,而且在高速区域中提供高质量的图像,并且具有优异的转印性能。
摘要:
The present invention relates to a non-magnetic yellow toner for use in full-color image forming apparatuses, such as full-color electrostatic copying machines and full-color laser beam printers, comprising:non-magnetic toner particles containing a binder resin having an acid value of 1 to 30 KOHmg/g, and a coloring material composed of a compound classified as C. I. pigment yellow 180;the toner particles having a roundness of 0.94 to 1.0, a standard roundness deviation of not more than 0.045, and a volume mean particle size of 2 to 9 .mu.m.
摘要:
A mono-component developing method, comprising the steps of:supplying a mono-component developing agent containing a toner onto a developer-supporting member that is aligned face to face with an image-supporting member;regulating the developing agent on the developer-supporting member by a regulating member installed in contact with the developer-supporting member; anddeveloping an electrostatic latent image formed on the image-supporting member by the toner,wherein the toner has a weight-average particle size (d.sub.50) in the range of 4 to 10 .mu.m, an average degree of roundness of not less than 0.950 and a standard deviation of degree of roundness of not more than 0.040, and more preferably the toner has a specific value of a surface shape characteristic D/d.sub.50, and a specific ratio d.sub.50 /Ra of the toner weight-average particle size (d.sub.50) to the surface roughness (Ra) of the developer-supporting member.
摘要翻译:一种单组分显影方法,包括以下步骤:将含有调色剂的单组分显影剂供给到与图像支撑构件面对面对准的显影剂支撑构件上; 通过与显影剂支撑构件接触地设置的调节构件将显影剂调节在显影剂支撑构件上; 并且通过调色剂显影形成在图像支撑构件上的静电潜像,其中调色剂的重均粒径(d50)在4至10μm的范围内,平均圆度不小于0.950 圆度度的标准偏差不大于0.040,更优选调色剂具有表面形状特性D / d50的特定值,调色剂重均粒径(d50)的比值d50 / Ra 达到显影剂支撑构件的表面粗糙度(Ra)。
摘要:
The present invention provides a toner, comprising;toner particles containing at least a binder resin and a colorant, and having an average degree of roundness from 0.960 to 1.0 and a standard deviation of degree of roundness of not more than 0.040; andsilica particles having an average primary particle size of 16 to 28 nm, in which the number of particles (A) that are less than 15 nm in particle size, the number of particles (B) that are between 15 and 30 nm in particle size and the number of particles (C) that are larger than 30 nm is in relation of B/A>4 and B/C>4.
摘要翻译:本发明提供一种调色剂,其包含: 至少含有粘合剂树脂和着色剂的调色剂颗粒的平均圆度为0.960至1.0,圆度的标准偏差不大于0.040; 平均一次粒径为16〜28nm的二氧化硅粒子,粒径小于15nm的粒子(A)的数量,粒子的粒子数(B)为15〜30nm的粒子数 尺寸和大于30nm的颗粒数(C)与B / A> 4和B / C> 4有关。
摘要:
The nonmagnetic toner for forming full color images of the present invention comprises:a binder resin, a colorant and wax dispersed in the binder resin as wax particles;wherein the wax particles contained in the toner have a particle size distribution in which the wax particles having a particle size of 3 .mu.m or more are less than 3% by number, the wax particles having a particle size ranging from 2 .mu.m to less than 3 .mu.m are less than 12% by number, the wax particles having a particle size ranging from 1 .mu.m to less than 2 .mu.m are 5% to 30% by number, and the wax particles having a particle size of less than 1 .mu.m are 55% to 95% by number.
摘要:
A production method of toner particles has steps of mixing a binder resin and a colorant, melting and kneading the mixture, pulverizing the kneaded material, and classifying the pulverized materials to give a colored resin particles. Then the colored resin particles are mixed with silica particles having an average primary particle size of 16 to 28 nm with the number of particles (A) that are less than 15 nm in particle size, the number of particles (B) that are between 15 and 30 nm in particle size and the number of particles (C) that are larger than 30 nm in particle size having the relation of (B)/(A)>4 and (B)/(C)>4. To obtain toner particles, the resultant mixture is heat-treated to make the colored resin particles spherical and to make the silica particles fixed on the surface of the colored resin particles.
摘要:
The present invention provides a toner-set comprising yellow toner, magenta toner, cyan toner and black toner, in which the black toner comprises black toner particles comprising at least a binder resin and a black pigment and having a standard deviation of degree of roundness of not more than 0.045; the yellow toner comprises yellow toner particles comprising at least a binder resin and a yellow pigment and having a standard deviation of degree of roundness of not more than 0.045 and an average degree of roundness larger than that of the black toner particles, the magenta toner comprises magenta toner particles comprising at least a binder resin and a magenta pigment and having a standard deviation of degree of roundness of not more than 0.045 and an average degree of roundness larger than that of the black toner particles, and the cyan toner comprises cyan toner particles comprising at least a binder resin and a cyan pigment and having a standard deviation of degree of roundness of not more than 0.045 and an average degree of roundness larger than that of the black toner particles. The present invention also provides a method for forming full-color images suitable for use of the toner set.
摘要:
The present invention relates to a non-magnetic toner for developing electrostatic latent images, having; an average degree of roundness of not less than 0.960, a standard deviation of degree of roundness of not more than 0.040, a value of D/d50 of not less than 0.40, in which D=6/(&rgr;·S) (&rgr; is a true density of toner (g/cm3), and S is a BET specific surface area of toner (m2/g)); d50 is an average weight particle size of toner, and an adhesive stress of 6 g/cm2 or less under a compression of 1 kg/cm2. The non-magnetic toner for developing electrostatic latent images provides high-quality images not only in low-speed areas, but also in high-speed areas, and has a superior transferring properties.
摘要翻译:本发明涉及用于显影静电潜像的非磁性调色剂,其平均圆度不小于0.960,圆度标准偏差不大于0.040,D / d50值不大于 小于0.40,其中D = 6 /(rho.S)(rho是调色剂的真密度(g / cm 3),S是调色剂的BET比表面积(m2 / g)); d50是调色剂的平均重量粒径,压缩1kg / cm 2时的粘合应力为6g / cm 2以下。 用于显影静电潜像的非磁性调色剂不仅在低速区域,而且在高速区域中提供高质量的图像,并且具有优异的转印性能。
摘要:
1. A non-magnetic mono-component developer comprising:toner particles containing at least a binder resin and a coloring agent and having a volume mean particle size D of 4 to 10 .mu.m;first inorganic fine particles having a mean primary particle size of 1 to 40 nm, the quantity of addition of the first inorganic fine particles being 0.1 to 2% by weight relative to the quantity of the toner particles;second inorganic fine particles having a mean primary particle size of 40 to 100 nm and not less than 10 nm larger than the first inorganic fine particles, the quantity of addition of the second inorganic fine particles being 0.1 to 2.5% by weight relative to the quantity of the toner particles, the total quantity of addition of the first and second inorganic fine particles being 0.8 to 3% by weight relative to the quantity of the toner particles; andthird inorganic fine particles having a mean primary particle size of 100 nm to 1000 D/16 nm and not less than 10 nm larger than the second inorganic fine particles, the quantity of addition of the third inorganic fine particles being 0.3 to 3% by weight relative to the quantity of the toner particles.