公开(公告)号：US20090320568A1

公开(公告)日：2009-12-31

申请号：US12524489

申请日：2008-01-24

申请人： Guido Desie ,  Erik Van Geel ,  Danny Van Gemert ,  Gunter Dieltjens ,  Karl Van Den Bossche

发明人： Guido Desie ,  Erik Van Geel ,  Danny Van Gemert ,  Gunter Dieltjens ,  Karl Van Den Bossche

IPC分类号： G01N11/06 ,  G01N13/02

CPC分类号： G01N11/06 ,  G01N13/02 ,  G01N2013/0241 ,  G01N2015/1493

摘要： Methods and apparatus for measuring viscosity and/or surface tension of a liquid are described in which droplets are formed at a needle or pipette containing a sample of the test liquid and a size-related characteristic of the droplets such as droplet size, volume, diameter, or weight of the test liquid are measured by means of by capturing an image of the droplets and obtaining the size-related characteristic from the captured image. Subsequently or previously, a volume of the same sample of the test liquid is drained from the needle or pipette under pump pressure or a hydrostatic pressure, and an elution time is measured. The method and apparatus allows or includes determining the viscosity from the elution time, and determining the surface tension from the viscosity and the size-related characteristic of the droplet such as droplet size, volume, diameter, or weight of the test liquid.

摘要翻译： 描述了用于测量液体的粘度和/或表面张力的方法和设备，其中在包含测试液体的样品的针或移液管上形成液滴，并且液滴的尺寸相关特性如液滴尺寸，体积，直径 ，或通过捕获液滴的图像并从捕获的图像获得尺寸相关特性来测量测试液体的重量。 随后或之前，在泵压力或静水压力下，从针或移液管中排出相同样品的相同样品的体积，并测量洗脱时间。 该方法和装置允许或包括从洗脱时间确定粘度，以及根据液滴的粘度和尺寸相关特性（例如液滴尺寸，体积，直径或重量）测定表面张力。

公开(公告)号：US6109729A

公开(公告)日：2000-08-29

申请号：US768302

申请日：1996-12-17

申请人： Guido Desie ,  Frans Backeljauw

发明人： Guido Desie ,  Frans Backeljauw

IPC分类号： B41J2/06 ,  B41J2/415

CPC分类号： B41J2/4155 ,  B41J2002/061 ,  G03G2217/0025

摘要： A Direct Electrostatic Printing (DEP) device is provided that includes a back electrode (105), a printhead structure having an insulating substrate (102), a control electrode (102a) and a slit aperture (103) through which a particle flow can be electrically modulated by the control electrode (102a), and a toner delivery means (101), in which control electrodes (102a) are present only on one side of the slit aperture. In a preferred embodiment the printhead structure is realized by a slit having two sides, side A (SA) and side B (SB), defined by two edges (A and B), which are formed by at least one sheet of insulating material. The insulating material has an elasticity modulus (Young's Modulus, YM) fulfilling the equation 0.1 GPa.ltoreq.YM.ltoreq.10 GPa and the edges A and B are placed with respect to each other at an angle .alpha. fulfilling the equation 0.degree..ltoreq..alpha.

摘要翻译： 提供了一种直接静电印刷（DEP）装置，其包括背面电极（105），具有绝缘基底（102）的打印头结构，控制电极（102a）和狭缝孔（103） 由控制电极（102a）电调制的调色剂传送装置（101），其中控制电极（102a）仅存在于狭缝孔的一侧。 在优选实施例中，打印头结构由具有由两个边缘（A和B）限定的侧面A（SA）和侧面B（SB））的狭缝实现，其由至少一层绝缘材料形成。 绝缘材料的弹性模量（杨氏模量，YM）满足公式0.1GPa

公开(公告)号：US6070966A

公开(公告)日：2000-06-06

申请号：US926542

申请日：1997-09-10

申请人： Guido Desie ,  Raf Voets

发明人： Guido Desie ,  Raf Voets

IPC分类号： G03G9/10 ,  G03G15/34 ,  B41J2/04

CPC分类号： G03G9/10 ,  G03G15/346 ,  G03G2217/0025

摘要： A method for direct electrostatic printing includes the steps of providing a magnetic brush carrying carrier particles and toner particles, the carrier particles having a specific volume resistivity of between 10.sup.1 .OMEGA..multidot.cm and 10.sup.9 .OMEGA..multidot.cm and a specific density lower than 5 g/cm.sup.3, creating in an electrical field a flow of charged toner particles directly from the magnetic brush to a substrate, image wise modulating the flow of charged toner particles by a printhead structure having printing apertures and control electrodes, image wise depositing toner particles from the image wise modulated flow of charged toner particles on the substrate, and fixing the toner particles to the substrate.

摘要翻译： 一种用于直接静电印刷的方法包括以下步骤：提供带有载体颗粒和调色剂颗粒的磁刷，所述载体颗粒的体积电阻率介于101欧姆·厘米×10 9欧米伽×厘米，比密度低于5克/厘米3，产生 在电场中，带电的调色剂颗粒直接从磁刷流到衬底，通过具有印刷孔和控制电极的打印头结构，图像地调制带电调色剂颗粒的流动，从图像调制流图像沉积调色剂颗粒 的带电调色剂颗粒，并将调色剂颗粒固定到基底上。

公开(公告)号：US6050677A

公开(公告)日：2000-04-18

申请号：US906705

申请日：1997-08-06

申请人： Guido Desie

发明人： Guido Desie

IPC分类号： G03G5/10 ,  G03G15/00 ,  G03G15/34 ,  B41J2/04

CPC分类号： G03G15/6597 ,  G03G15/346 ,  G03G15/6585 ,  G03G5/108 ,  G03G2215/00801 ,  G03G2217/0025

摘要： A method and apparatus is provided for a direct electrostatic printing on a substrate irrespective of the surface topology and conductivity of the substrate. A conductive layer is applied to a surface of the substrate to be printed. A voltage source is connected to establish a DC electric field between the conductive layer and a source of toner particles to create a flow of toner particles from the source to the surface of the substrate. A printhead structure is provided between the source and the substrate to image-wise modulate the flow of toner particles, and the toner particles are fixed on the substrate.

摘要翻译： 提供了一种用于在衬底上进行直接静电印刷的方法和装置，而与衬底的表面拓扑和导电性无关。 将导电层施加到要印刷的基板的表面上。 连接电压源以在导电层和调色剂颗粒源之间建立DC电场，以产生从源极到衬底表面的调色剂颗粒流。 在源和基板之间提供打印头结构以成像地调制调色剂颗粒的流动，并且调色剂颗粒固定在基板上。

公开(公告)号：US6033056A

公开(公告)日：2000-03-07

申请号：US551347

申请日：1995-11-01

申请人： Guido Desie

发明人： Guido Desie

IPC分类号： B41J2/385 ,  B41J2/415 ,  G03G15/05 ,  G03G15/34 ,  B41J2/04

CPC分类号： G03G15/346 ,  B41J2/4155

摘要： A device for use in the technique of direct electrostatic printing (DEP) images onto an intermediate or final substrate. The direct electrostatic printing device includes a receiving member support and a printhead structure which has shield electrodes on a first side and control electrodes on a second side, and which also has apertures therethrough. There is one shield electrode and one control electrode for each aperture. The direct electrostatic printing device also includes a toner delivery mechanism which provides a cloud of toner particles in the vicinity of the apertures. The printhead structure is made of a plastic isolating substrate. The voltage applied to the individual control electrodes is varied according to the contents of the image being printed. A correction voltage is applied to each individual shield electrode and is tuned according to the characteristics of the particular aperture which corresponds to that shield electrode. The values corresponding to the correction voltages for each shield electrode can be stored in a look up table, which will be unique for each printhead structure.

摘要翻译： 用于将直接静电印刷（DEP）图像技术用于中间或最终基底的装置。 直接静电印刷装置包括接收构件支撑件和打印头结构，该打印头结构在第一侧具有屏蔽电极，在第二侧具有控制电极，并且还具有穿过其中的孔。 每个孔有一个屏蔽电极和一个控制电极。 直接静电印刷装置还包括调色剂输送机构，其在孔附近提供调色剂颗粒的云。 打印头结构由塑料隔离基板制成。 施加到各个控制电极的电压根据正在打印的图像的内容而变化。 校正电压施加到每个单独的屏蔽电极，并且根据对应于该屏蔽电极的特定孔径的特性进行调谐。 对应于每个屏蔽电极的校正电压的值可以存储在查询表中，这对于每个打印头结构将是唯一的。

公开(公告)号：US5900893A

公开(公告)日：1999-05-04

申请号：US634963

申请日：1996-04-19

申请人： Ludo Joly ,  Dirk Broddin ,  Guido Desie

发明人： Ludo Joly ,  Dirk Broddin ,  Guido Desie

IPC分类号： B41J2/385 ,  B41J2/415 ,  G03G15/34 ,  B41J2/06

CPC分类号： G03G15/346 ,  B41J2/4155 ,  G03G2217/0025

摘要： There is provided a device for direct electrostatic printing comprising a back electrode (105), a printhead structure (106), an array of printing apertures (107) in said printhead structure (106) through which a particle flow can be electrically modulated by a control electrode (106a), an image receiving substrate (109) travelling between said back electrode (105) and said printhead structure (106) in the direction of arrow A and toner delivery means (101), comprising a charged toner conveyer (103), the reference surface of said charged toner conveyer being placed at a distance B (in mm) from the front of said printhead structure (106), and a magnetic brush to provide charged toner on to the CTC, wherein the linear surface speed of the magnetic brush LSM has a specified minimal ratio versus the travelling speed LSS of the image receiving substrate, such that LSM/LSS.gtoreq.0.5. In a preferred embodiment the surface speed of the CTC LSC has also a specified minimal ratio versus the travelling speed LSS of the image receiving substrate, such that LSC/LSS.gtoreq.0.5. In a further preferred embodiment the surface speed of the magnetic brush LSM has a also a specified minimal ratio versus the linear surface speed LSC of the CTC, such that LSM/LSC.gtoreq.0.5. More over the radius of the CTC is chosen as a function of the extension of the array of printing apertures present in the printhead structure.

摘要翻译： 提供了一种用于直接静电印刷的装置，其包括背电极（105），打印头结构（106），所述打印头结构（106）中的打印孔（107）阵列，通过该打印头结构可以通过 控制电极（106a），沿着箭头A的方向在所述背电极（105）和所述打印头结构（106）之间行进的图像接收基板（109）和调色剂输送装置（101），包括带电调色剂输送器（103） 所述带电调色剂输送机的参考表面与所述打印头结构（106）的前面距离B（以mm为单位）放置，以及磁刷，用于向CTC提供带电的调色剂，其中线性表面速度 磁刷LSM与图像接收基板的行进速度LSS具有规定的最小比率，使得LSM / LSS> = 0.5。 在优选实施例中，CTC LSC的表面速度与图像接收衬底的行进速度LSS相比具有规定的最小比率，使得LSC /LSS≥0.5。 在另一优选实施例中，磁刷LSM的表面速度与CTC的线性表面速度LSC相比也具有规定的最小比率，使得LSM / LSC> = 0.5。 根据打印头结构中存在的打印孔阵列的扩展，选择CTC的半径以上。

公开(公告)号：US5781217A

公开(公告)日：1998-07-14

申请号：US641689

申请日：1996-05-02

申请人： Guido Desie

发明人： Guido Desie

IPC分类号： B41J2/385 ,  G03G15/16 ,  G03G15/34 ,  B41J2/415 ,  B41J2/06 ,  B41J2/39 ,  B41J2/395

CPC分类号： G03G15/346 ,  G03G15/162

摘要： A device for direct electrostatic printing is provided wherein a flow of toner particles in a electrical field from a toner source to the surface of an intermediate image receiving member is image-wise modulated by a printhead structure with printing apertures and control electrodes, and wherein the toner image of the intermediate image receiving member is transferred to a final substrate and fixed to that final substrate. The intermediate member has a surface energy lower than 40 mN/m and surface roughness Ra smaller than 3.0 .mu.m. The transfer of the toner image from the intermediate image receiving member to the final substrate can be aided by electrostatic attraction and/or by tackifying the toner image on the intermediate member.

摘要翻译： 提供一种用于直接静电印刷的装置，其中从调色剂源到中间图像接收部件的表面的电场中的调色剂颗粒的流动通过具有打印孔和控制电极的打印头结构进行成像调制，并且其中 将中间图像接收构件的调色剂图像转印到最终的基底并固定到最终的基底。 中间构件的表面能低于40mN / m，表面粗糙度Ra小于3.0μm。 可以通过静电吸引和/或通过增强中间构件上的调色剂图像来帮助调色剂图像从中间图像接收构件转移到最终基底。

公开(公告)号：US5774158A

公开(公告)日：1998-06-30

申请号：US551674

申请日：1995-11-01

申请人： Guido Desie ,  Marc Van Ostaeyen

发明人： Guido Desie ,  Marc Van Ostaeyen

IPC分类号： B41J2/385 ,  B41J2/415 ,  G03G15/05 ,  G03G15/34 ,  B41J2/39 ,  B41J2/395 ,  G03G9/08

CPC分类号： B41J2/4155 ,  G03G15/346

摘要： A device for use in the technique of direct electrostatic printing (DEP) on an intermediate or final substrate is described, comprising: a receiving member support 5 a printhead structure 6 having control electrodes 6a on its back side, in combination with apertures 7 and at least one common shield electrode 6b on the front side ; a toner delivery means 1 presenting a cloud 4 of toner particles in the vicinity of the apertures 7. The printhead structure 6 is made of a plastic isolating substrate, and has at least two rows of apertures. Preferentially each row has one common shield electrode (6b, 6c) at the front side of the printhead structure. The individual control electrodes on the back side are galvanically isolated per aperture from each other and from each shield electrode. The control electrodes are arranged around the apertures. The size or diameter of the apertures of one row is substantially different from the size of the apertures of a second row. This arrangement allows a high quality reproduction of continuous tone images, along with crisp graphics and characters by one single printing pass.

摘要翻译： 描述了一种在中间或最终基板上用于直接静电印刷（DEP）技术的装置，包括：接收构件支撑件5，打印头结构6在其后侧具有控制电极6a，与孔7组合 正面上至少有一个普通屏蔽电极6b; 调色剂输送装置1在孔7附近呈现调色剂颗粒的云4。打印头结构6由塑料隔离基材制成，并且具有至少两排孔。 优选地，每排在打印头结构的前侧具有一个公共屏蔽电极（6b，6c）。 背面的各个控制电极彼此间隔开，并且从每个屏蔽电极电隔离。 控制电极围绕孔设置。 一行的孔的尺寸或直径与第二排的孔的尺寸大致不同。 这种布置允许连续色调图像的高质量再现以及通过单个打印通过的清晰图形和字符。

公开(公告)号：US5751325A

公开(公告)日：1998-05-12

申请号：US444292

申请日：1995-05-18

申请人： Luc Leenders ,  Leo Oelbrandt ,  Jan Van den Bogaert ,  Guido Desie

发明人： Luc Leenders ,  Leo Oelbrandt ,  Jan Van den Bogaert ,  Guido Desie

IPC分类号： B41M5/00 ,  B41J3/407 ,  B41M1/36 ,  B41M3/00 ,  B41M5/50 ,  B41M5/52 ,  G03C8/06 ,  G03C8/26 ,  G03F7/07 ,  B41J2/205 ,  B41M5/20

CPC分类号： H05K3/182 ,  B41C1/1066 ,  H05K2203/013 ,  H05K2203/1157

摘要： An ink jet printing process comprising the steps of image-wise projecting droplets of liquid onto a receiving material thus bringing into working relationship on said receiving material a reducible metal compound (A), a reducing agent (B) for said metal compound and physical development nuclei (C) that catalyze the reduction of said metal compound to metal.

摘要翻译： 一种喷墨印刷方法，包括以下步骤：将液体液滴成像地投影到接收材料上，从而在所述接收材料上形成可还原金属化合物（A），用于所述金属化合物的还原剂（B）和物理显影 核（C），其催化所述金属化合物还原成金属。

公开(公告)号：US5738009A

公开(公告)日：1998-04-14

申请号：US626936

申请日：1996-04-03

申请人： Guido Desie ,  Herman Debie

发明人： Guido Desie ,  Herman Debie

IPC分类号： B41J2/385 ,  B41J2/43 ,  G03G15/34 ,  B41M1/12 ,  B41J2/41

CPC分类号： G03G15/346 ,  G03G2217/0025 ,  Y10S101/37

摘要： Disclosed herein is a method for direct electrostatic printing with reduced banding, which comprising the steps of creating a potential difference between a back electrode and a magnetic brush assembly having a stationary mounted core and a sleeve rotatably mounted around the core, and rotating the sleeve at a rotational speed V.sub.rot which is higher than 100 rotations per minute; applying a developer with toner particles and magnetically attractable carrier particles on the magnetic brush assembly; creating a flow of toner particles directly from the magnetic brush assembly to the back electrode; interposing a printhead structure, having printing apertures and control electrodes around the printing apertures, between the magnetic brush assembly and the back electrode, for image wise controlling the flow of toner particles; passing a substrate at a speed V.sub.sub being equal to or larger than 10 cm/min between the printhead structure and the back electrode; image wise depositing toner particles on the substrate through the printing apertures; and fixing the toner particles to the substrate.

摘要翻译： 本文公开了一种用于减少带状物的直接静电印刷的方法，其包括以下步骤：在具有固定安装的芯部和可旋转地安装在芯部周围的套筒之间产生背电极和磁刷组件之间的电位差，并且将套筒旋转 转速Vrot高于每分钟100转; 将具有调色剂颗粒和磁性吸引载体颗粒的显影剂施加在磁刷组件上; 产生直接从磁刷组件到背电极的调色剂颗粒流; 在磁刷组件和背电极之间插入具有打印孔和围绕打印孔的控制电极的打印头结构，用于图像地控制调色剂颗粒的流动; 在打印头结构和背面电极之间以等于或大于10cm / min的速度Vsub使基板通过; 通过印刷孔将成像微粒沉积在基底上; 并将调色剂颗粒固定到基底上。