公开(公告)号：WO1991003006A1

公开(公告)日：1991-03-07

申请号：PCT/NL1990000049

申请日：1990-04-17

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  ASHKENAZI, Itzhak ,  VAN MIL, Jan ,  PINHAS, Hanna ,  FENSTER, Paul

IPC: G03G15/16

CPC classification number: G03G5/005 ,  G03G5/04 ,  G03G5/142 ,  G03G15/161 ,  G03G15/162 ,  G03G15/169

Abstract: An imaging system including an image bearing surface (16) and an intermediate transfer member (40) operative for transfer of liquid toner images from the image bearing surface (16) to a substrate (42) provides for first transfer engagement between the intermediate transfer member (40) and the image bearing surface (16) for transfer of an image from the image bearing surface to the intermediate transfer member (40) at a first pressure, producing deformation of the intermediate transfer member (40) to a first deformation degree. The system also provides for second transfer engagement between the intermediate transfer member (40) and the substrate (42) for transfer of the image from the intermediate transfer member to the substrate at a second pressure, producing deformation of the intermediate transfer member (40) to a second deformation degree. In one preferred embodiment the intermediate transfer member (40) includes a compressible layer having a transfer surface, a backing layer disposed away from the image bearing surface and a heating layer. The heating layer is disposed intermediate the backing layer and the transfer surface.

公开(公告)号：WO1990010896A1

公开(公告)日：1990-09-20

申请号：PCT/NL1990000026

申请日：1990-03-05

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  EZUZ, Shabtai ,  KARIN, Jakob ,  FENSTER, Paul

IPC: G03G15/10

CPC classification number: B03C5/02 ,  G03G15/104 ,  G03G21/0088

Abstract: Electrostatic separator apparatus for the separation of particles from a liquid including a drum (10) having a drum surface (12), means for supplying a particle dispersion comprising particles dispersed in a liquid to the drum surface (12), electrostatic means for causing at least some of the particles to adhere to the drum surface (12) in a nonimagewise configuration, resilient blade means (22), downstream of the electrostatic means, for operative engagement with the drum surface (12) for retaining a layer (24) of particle rich material on the drum surface (12), and layer removal means (30) for layerwise removing substantially all of said layer (24) from the drum surface (12).

公开(公告)号：WO1990005589A2

公开(公告)日：1990-05-31

申请号：PCT/NL1989000086

申请日：1989-11-21

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion

IPC: B03C05/02

CPC classification number: B03C5/02 ,  G03G15/104

Abstract: A filter (30) for separating a flowing fluid containing charged particles into two streams, one essentially free of particles and one laden with particles, includes a main conduit (31) having an inlet (32) at one end for receiving the flowing fluid, and having two outlets (33, 34) downstream of the one end for dividing the flow into two outlet flow paths. A pair of electrodes (33, 34) between which the fluid flows, is located in the main conduit (31) upstream of the outlets (33, 34); and each of the outlets is associated with a respective electrode (35 or 36). Voltage sources are connected to the electrodes (35, 36) such that one is more positive than the other for establishing, in the fluid flowing between the electrodes (35, 36), an electric field having a component (E) transverse to the direction of flow whereby the particles in the field are attracted toward one of the electrodes (35, 36) and travel into the outlet (33, 34) associated therewith. A dielectric coating (38) of release material in the form of a fluorosilicone polymer is applied to the surface of the one electrode (36) for inhibiting plating-out of particles thereon while fluid flows in the conduit (31).

Abstract translation: 一种用于将含有带电粒子的流动流体分离成两股流体的过滤器（30），一个基本上不含颗粒的颗粒和一个载有颗粒的流体，包括一个在一端具有用于接收流动流体的入口（32）的主管道（31） 并且在一端的下游具有两个出口（33,34），用于将流分成两个出口流动路径。 流体流动的一对电极（33,34）位于出口（33,34）上游的主管道（31）中。 并且每个出口与相应的电极（35或36）相关联。 电压源连接到电极（35,36），使得一个电极比另一个电极更正，用于在电极（35,36）之间流动的流体中建立具有横向于电极（35,36）的分量（E）的电场 的流动，其中场中的颗粒被吸引到电极（35,36）中的一个并且进入与其相关联的出口（33,34）。 在氟化硅聚合物形式的剥离材料的电介质涂层（38）被施加到一个电极（36）的表面，用于在流体流过导管（31）的同时抑制其上的颗粒的电镀。

公开(公告)号：WO1989012257A2

公开(公告)日：1989-12-14

申请号：PCT/NL1989000042

申请日：1989-06-05

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  NIV, Yehuda ,  GROSSINGER, Israel ,  ADAM, Yossi ,  LEVANON, Moshe

IPC: G03G13/01

CPC classification number: G03G13/10 ,  G03G9/12 ,  G03G13/013 ,  G03G15/104

Abstract: An imaging system comprising apparatus for forming a latent image on a surface, said latent image including a first portion having a high level of electrostatic charge, a second portion having a low level of electrostatic charge and a third portion having an intermediate level of electrostatic charge, the charges on the first, second and third portions being of the same polarity; and apparatus for developing the latent image by contacting it with a liquid toner composition comprising an insulating, nonpolar liquid having admixed therewith a first type of pigmented particles having charges of a first polarity and a second type of pigmented particles having charges of an opposite polarity, such that the first type of pigmented particles becomes deposisted onto the first portion and the second type of pigmented particles becomes deposited onto the second portion.

Abstract translation: 一种成像系统，包括用于在表面上形成潜像的装置，所述潜像包括具有高水平静电电荷的第一部分，具有低水平静电电荷的第二部分和具有中等水平静电电荷的第三部分 ，第一，第二和第三部分的电荷具有相同的极性; 以及通过使潜像显影的液体调色剂组合物与包含绝缘非极性液体的液体调色剂组合物显影的装置，所述液体调色剂组合物与第一类型具有第一极性电荷的着色颗粒和具有相反极性电荷的第二类型着色颗粒混合， 使得第一类型的着色颗粒变得沉积在第一部分上，并且第二类型着色颗粒沉积到第二部分上。

公开(公告)号：WO1992017823A1

公开(公告)日：1992-10-15

申请号：PCT/NL1992000049

申请日：1992-03-12

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion

IPC: G03G09/087

CPC classification number: G03G9/1355 ,  C08L23/0853 ,  C08L23/0876 ,  G03G9/12 ,  G03G9/13 ,  G03G9/131 ,  C08L2666/06

Abstract: In a liquid toner for use in imaging processes which comprises pigmented polymer particles, at least one charge director and a hydrocarbon liquid toner carrier, the polymer is a blend of at least two distinct polymer components, the blend being characterized in that in a 40 % non-volatile mixture with a hydrocarbon liquid toner carrier, it has on a semi-logarithmic viscosity vs. temperature cooling curve, a break-point at temperature below about 65 DEG C at a viscosity of between about 3 x 10 centipoises and about 5 x 10 centipoises. The polymer blend and an electrostatic imaging process (particularly one using an intermediate transfer member) utilizing the above toner are also claimed. Use of such polymer blends enables liquid toner to be applied in such processes at no more than and in some cases less than the customary processing temperatures.

Abstract translation: 在用于成像过程的液体调色剂中，其包含着色聚合物颗粒，至少一种电荷导向剂和烃液体调色剂载体，所述聚合物是至少两种不同的聚合物组分的共混物，所述共混物的特征在于在40％ 具有烃液体调色剂载体的非挥发性混合物，其具有半对数粘度对温度冷却曲线，温度低于约65℃的断点，粘度在约3×10 5厘泊和 约5×10 6厘泊。 还要求使用上述调色剂的聚合物共混物和静电成像方法（特别是使用中间转印部件的方法）。 使用这种聚合物共混物可使液体调色剂在不超过和在一些情况下小于常规加工温度的这种方法中施用。

公开(公告)号：WO1990014394A1

公开(公告)日：1990-11-29

申请号：PCT/NL1990000070

申请日：1990-05-14

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  SCHNEIDER, Avner

IPC: C09D11/02

CPC classification number: C09D11/06

Abstract: A ribbon ink has a viscosity that increases with increasing rate of shear for rates of shear greater than a predetermined value. A printer ribbon for use with an impact printer comprises a substate containing ink having a viscosity that increases with increasing rate of shear for rates of shear greater than a predetermined value. The substrate is preferably formed of two layers of non-woven fabric.

Abstract translation: 带状墨水的粘度随剪切速率的增加而增加，剪切速率大于预定值。 与冲击式打印机一起使用的打印机色带包括含有油墨的基底，其具有随剪切速率的增加而随着剪切速率的增加而增加的粘度，其大于预定值。 基材优选由两层无纺布形成。

公开(公告)号：WO1990010894A1

公开(公告)日：1990-09-20

申请号：PCT/NL1990000025

申请日：1990-03-05

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  ALMOG, Yaacov ,  PELED, Amnon

IPC: G03G09/12

CPC classification number: G03G13/10 ,  G03G9/1355

Abstract: A self-replenishing liquid developer system for an electrostatic imaging system including an insulating non-polar carrier liquid, toner particles dispersed in the carrier liquid, at least one charge director compound having a limited solubility in the carrier liquid and dissolved therein at its saturation concentration and excess of the at least one charge director compound comprised in a solid phase and being in equilibrium contact with the carrier liquid.

Abstract translation: 一种用于静电成像系统的自补充液体显影剂系统，其包括绝缘非极性载体液体，分散在载体液体中的调色剂颗粒，至少一种在载体液体中溶解度有限且溶解于其中的饱和浓度的电荷导向剂化合物 以及包含在固相中并与载体液体平衡接触的至少一种电荷导向剂化合物的过量。

公开(公告)号：WO1990005941A1

公开(公告)日：1990-05-31

申请号：PCT/NL1989000087

申请日：1989-11-21

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  KRUMBERG, Yakov ,  YOUNES, Hani

IPC: G03G15/10

CPC classification number: G03G15/10

Abstract: A liquid toner based imaging machine (10) includes a movable photoconductive carrier (11) having an electrostatic latent image thereon. A developing station (15) is provided containing a source of toner liquid (16) that includes charged toner particles. The station (15) is operatively associated with the carrier (11) for contacting the same with the liquid (16) thereby developing the latent image by effecting the transfer of toner particles to the image. The developing station (15) includes a developer electrode (17) charged to a voltage intermediate voltages on the carrier (11) representative of background and information in the image for attracting toner particles to an elemental area of the electrode (17) when the electric field (E) between the carrier (11) and the electrode (17) is directed towards the elemental area. The deposition of toner particles on the surface of the electrode (17) is inhibited during development of the image by coating the surface of the electrode (17) facing the carrier (11) with a fluorosilicone polymer (22).

公开(公告)号：WO1990004216A1

公开(公告)日：1990-04-19

申请号：PCT/NL1989000073

申请日：1989-10-03

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  LIOR, Ishaiau ,  PINHAS, Hanna

IPC: G03G15/16

CPC classification number: G03G15/162 ,  G03G15/0173 ,  G03G15/161 ,  G03G2215/0174 ,  G03G2215/0626

Abstract: Method an apparatus for transfer of a liquid toner image, containing carrier liquid and toner particles which solvate the carrier liquid at a solvation temperature above room temperature, from an image bearing surface to a substrate, the apparatus including an intermediate transfer member positioned in operative association with the image bearing surface, transferring the image from the image bearing surface onto the intermediate transfer member, and heating the image on the intermediate transfer member to a temperature above the solvation temperature, below the melting point of the toner particles and below the boiling point of the carrier liquid prior to transfer of the image to the substrate so as to cause the image to adhere to the substrate. There is also provided imaging apparatus including a flexible substrate, apparatus for tensioning the flexible substrate in at least two directions and apparatus for bringing the tensioned flexible substrate into image transfer engagement with an image bearing surface. A method of imaging using the apparatus is also described.

Abstract translation: 方法一种用于将含有载体液体和将溶剂化温度高于室温的载体液体的调色剂颗粒从载体表面转移到基底的液体调色剂图像的装置，该装置包括位于可操作关联的中间转印部件 与图像承载表面一起，将图像从图像承载表面转印到中间转印部件上，并将中间转印部件上的图像加热到高于溶剂化温度的温度，低于调色剂颗粒的熔点并低于沸点 在将图像转印到基板之前使载体液体粘附到基板上。 还提供了一种成像设备，其包括柔性基板，用于在至少两个方向上张紧柔性基板的装置和用于使张紧的柔性基板与图像承载表面进行图像转印接合的装置。 还描述了使用该装置的成像方法。

公开(公告)号：WO1993007541A1

公开(公告)日：1993-04-15

申请号：PCT/NL1991000193

申请日：1991-10-09

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion

IPC: G03G13/01

CPC classification number: G03G13/013

Abstract: An imaging process including the steps of: sequentially forming a series of electrostatic latent images on a photoconductor surface; sequentially developing the series of electrostatic latent images with a plurality of toners at least one of which is unpigmented and at least one of which is pigmented to form a developed image; and transferring the developed image to a final substrate with the at least one unpigmented toner disposed uppermost thereon to form a layer enhancing the reflection of luminous flux from the image.

Abstract translation: 一种成像方法，包括以下步骤：在感光体表面上依次形成一系列静电潜像; 用多个调色剂顺序显影该系列静电潜像，其中至少一个调色剂是未着色的，并且其中至少一个着色以形成显影图像; 以及将显影的图像转移到最终的基底，其中至少一个未着色的调色剂最上面设置以形成增强来自图像的光通量的反射的层。